implicit, torus: evaluates_as's bound derived term by term; the recognised torus's sweep frame from its form (#3185 , #3199 ) (#13743 )

Moved from tangency-labs/solidcore#3224. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-10 18:55:14 +00:00 · 2026-11-09 10:19:58 -05:00
924 changed files with 29862 additions and 76466 deletions
@@ -1,27 +1,15 @@
 # yaml-language-server: $schema=https://coderabbit.ai/integrations/schema.v2.json
 reviews:
-  profile: chill
-  poem: false
-  sequence_diagrams: false
-  related_issues: false
-  related_prs: false
-  suggested_labels: false
-  suggested_reviewers: false
-  in_progress_fortune: false
  auto_review:
-    # Review when a PR is opened or marked ready, or on `@coderabbitai review`; not on every push.
-    drafts: false
-    auto_incremental_review: false
    # Dependabot bumps are checked by CI; skip CodeRabbit reviews on them.
    ignore_usernames:
      - "dependabot[bot]"
  path_instructions:
    - path: "**"
      instructions: |
-        Project rule: don't change anyone's existing UX defaults unless the change is purely additive and belongs in the application.
-        A changed default is when something people already rely on in the UI changes for everyone who didn't opt in: an existing control, interaction or setting value. Examples the owner declined or reverted: right click becoming select while left click orbits (make it opt-in instead); a PR that removed all camera animation when only orbit lag was to be fixed. Flag any change to something a user already relies on: a default setting or preference value, what a command or tool does when used the usual way, the UI's default layout or behaviour, a keyboard or mouse shortcut.
-        A changed kernel or geometry result (different faces or volumes, a case that now builds or is now refused), including anything under solidcore/, is not a changed default; don't flag it as one, and expect `Changes a default: no` for it.
-        Not defaults: bug fixes and more correct results, kernel or geometry result changes, new options that are off by default, and CI or tooling config. Don't flag purely additive changes: a new command, a new setting whose default keeps today's behaviour, or a new option that appears only when someone chooses it. Don't flag bug fixes that only turn a crash or an error into the result the feature always promised.
+        Project rule: don't change anyone's existing defaults unless the change is purely additive and belongs in the application.
+        Flag any change to something a user already relies on: a default setting or preference value, what a command or tool does when used the usual way, the UI's default layout or behaviour, a keyboard or mouse shortcut, or the result an existing saved design rebuilds to.
+        Don't flag purely additive changes: a new command, a new setting whose default keeps today's behaviour, or a new option that appears only when someone chooses it. Don't flag bug fixes that only turn a crash or an error into the result the feature always promised.
        When you flag one, start the comment with "Changes a default:", say what a user sees before and after, whether a setting keeps the old behaviour, and whether the PR description's `Changes a default:` line says so.

    # Where code goes, SolidCraft or SolidCore: solidcore/docs/layers.md.
@@ -189,5 +177,5 @@ reviews:
      - name: "Existing defaults unchanged"
        mode: "warning"
        instructions: |
-          Pass if the pull request changes no UX default a user already relies on (default setting or preference values, what a command or tool does when used the usual way, the UI's default layout or behaviour, shortcuts), or if its changes are purely additive. UX defaults only: a changed kernel or geometry result (different faces or volumes, a case that now builds or is now refused), including anything under solidcore/, is not a changed default and passes.
-          Fail otherwise, naming each changed default and what a user sees before and after. Also fail if the description says `Changes a default: no` while the code changes a UX default.
+          Pass if the pull request changes no default a user already relies on (default setting or preference values, what a command or tool does when used the usual way, the UI's default layout or behaviour, shortcuts, or the result an existing saved design rebuilds to), or if its changes are purely additive.
+          Fail otherwise, naming each changed default and what a user sees before and after. Also fail if the description says `Changes a default: no` while the code changes one.
@@ -4,5 +4,4 @@

 # The vendored SolidCore kernel, owned as in SolidCore's own CODEOWNERS
 # (solidcore/.github/CODEOWNERS, which GitHub reads only at a repository's root).
-# The team (jyviko and bherbruck) assigns one of them per pull request, so either one approves.
-/solidcore/ @tangency-labs/solidcore-owners
+/solidcore/ @jyviko @bherbruck
@@ -6,7 +6,7 @@ Start with what this is, in plain words someone new to the project would underst

 Changes a default: no

-<!-- Required line, replace "no" if this changes what a user gets out of the box (a default value, key binding, setting, tool behaviour; a UX default only, a kernel result change is 'no'):
+<!-- Required line, replace "no" if this changes what a user gets out of the box (a default value, key binding, setting, tool behaviour):
 Changes a default: yes — <what>, old behaviour kept behind preference <name>
 Docs-only and bot PRs are exempt. -->

@@ -402,7 +402,7 @@ jobs:
    name: Format and repository checks
    if: (github.event_name != 'pull_request' || !github.event.pull_request.draft) && (github.event.action != 'labeled' || github.event.label.name == 'approved-for-ci')
    runs-on: blacksmith-4vcpu-ubuntu-2404
-    timeout-minutes: 25
+    timeout-minutes: 15
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      - uses: dtolnay/rust-toolchain@stable
@@ -448,8 +448,8 @@ jobs:
        run: python3 -I scripts/ci/test_affected.py
      - name: Merge-of-main detection self-test
        run: python3 -I scripts/ci/test_main_merge.py
-      - name: Claim, triage and PR-check bot tests
-        run: node --test scripts/claim/*.test.js scripts/triage/*.test.js scripts/pr-checks/*.test.js
+      - name: Claim, triage and kernel-paused bot tests
+        run: node --test scripts/claim/*.test.js scripts/triage/*.test.js scripts/kernel-paused/*.test.js scripts/pr-checks/*.test.js

  # Fast feedback for a pull request that has not been approved for the full CI yet.
  quick-compile:
@@ -577,9 +577,6 @@ jobs:
      # would skip for want of an adapter fails instead.
      SOLIDCRAFT_GPU: software
      SOLIDCRAFT_REQUIRE_GPU: "1"
-      # The same for the shared viewport crate's own GPU tests, which read no SolidCraft variable.
-      VIEWPORT_TEST_GPU: software
-      VIEWPORT_TEST_REQUIRE_GPU: "1"
      ACTION_MATRIX_JOBS: "12"
      CARGO_INCREMENTAL: "0"
      RUSTC_WRAPPER: sccache
@@ -689,9 +686,6 @@ jobs:
      # As in Native Linux tests: lavapipe draws, and a test without an adapter fails.
      SOLIDCRAFT_GPU: software
      SOLIDCRAFT_REQUIRE_GPU: "1"
-      # The same for the shared viewport crate's own GPU tests, which read no SolidCraft variable.
-      VIEWPORT_TEST_GPU: software
-      VIEWPORT_TEST_REQUIRE_GPU: "1"
      # lavapipe's own shader cache (below).
      MESA_SHADER_CACHE_DIR: /home/runner/.cache/mesa-gpu
      CARGO_INCREMENTAL: "0"
@@ -998,9 +992,6 @@ jobs:
      # WARP is a software (Cpu) adapter.
      SOLIDCRAFT_GPU: software
      SOLIDCRAFT_REQUIRE_GPU: "1"
-      # The same for the shared viewport crate's own GPU tests, which read no SolidCraft variable.
-      VIEWPORT_TEST_GPU: software
-      VIEWPORT_TEST_REQUIRE_GPU: "1"
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      - uses: dtolnay/rust-toolchain@stable
@@ -1049,7 +1040,7 @@ jobs:
    # commit's real run instead: the merge queue reads `ci` from the newest run of a commit, so a
    # run without a passing `ci` would block a pull request that passed (#1850, #3182, #3252).
    name: ci
-    needs: [changes, checks, quick-compile, clippy, build-tests, tests, gpu-path-tests, doc-tests, oracle, windows-fxc, windows-startup, dependency-advisories, wasm, solidcore, solidcore-standalone]
+    needs: [changes, checks, quick-compile, clippy, build-tests, tests, gpu-path-tests, doc-tests, oracle, windows-fxc, windows-startup, dependency-advisories, wasm, solidcore]
    if: always() && (github.event_name != 'pull_request' || !github.event.pull_request.draft)
    runs-on: blacksmith-2vcpu-ubuntu-2404
    permissions:
@@ -1109,7 +1100,6 @@ jobs:
          WASM: ${{ needs.wasm.result }}
          SOLIDCORE_RUN: ${{ needs.changes.outputs.solidcore }}
          SOLIDCORE: ${{ needs.solidcore.result }}
-          SOLIDCORE_STANDALONE: ${{ needs.solidcore-standalone.result }}
        run: |
          test "$CHANGES" = success
          test "$CHECKS" = success
@@ -1150,7 +1140,6 @@ jobs:
          # solidcore/** changed on an approved pull request, in a merge group or on main.
          if [ "$SOLIDCORE_RUN" = true ]; then
            test "$SOLIDCORE" = success
-            test "$SOLIDCORE_STANDALONE" = success
          fi
      - name: Note a carried result
        if: needs.changes.outputs.carried != ''
@@ -1186,35 +1175,6 @@ jobs:
  # solidcore/** (Select checks' `solidcore`), where `ci` requires it; skipped otherwise. Its build,
  # kernel-rig and goldens jobs are one entry here, so the rig and goldens binaries are built once
  # without an artifact between jobs.
-  # solidcore/ exported alone (as the mirror to tangency-labs/solidcore carries it) must still check: the
-  # `layers` rule reads the manifests, this builds them without the rest of the repository around.
-  solidcore-standalone:
-    name: SolidCore builds on its own
-    needs: changes
-    if: needs.changes.outputs.solidcore == 'true'
-    runs-on: blacksmith-8vcpu-ubuntu-2404
-    timeout-minutes: 30
-    env:
-      CARGO_INCREMENTAL: 0
-    steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - name: Export solidcore/ alone
-        run: |
-          mkdir -p "$RUNNER_TEMP/sc"
-          git archive HEAD solidcore | tar -x -C "$RUNNER_TEMP/sc"
-      - name: Toolchain (solidcore/rust-toolchain.toml)
-        working-directory: ${{ runner.temp }}/sc/solidcore
-        run: rustup show active-toolchain || rustup toolchain install
-      # Main saves the cache; every other run restores it, read-only.
-      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
-        with:
-          workspaces: "${{ runner.temp }}/sc/solidcore -> bin"
-          key: solidcore-standalone
-          save-if: ${{ github.ref == 'refs/heads/main' || github.ref == 'refs/heads/develop' }}
-      - name: Check the exported tree
-        working-directory: ${{ runner.temp }}/sc/solidcore
-        run: cargo check --workspace --all-targets --locked
-
  solidcore:
    name: SolidCore checks (${{ matrix.check }})
    needs: changes
@@ -1,4 +1,4 @@
-# Files generated from the code are rewritten here, on main, once a night, so pull requests
+# Files generated from the code are rewritten here, on main, after each merge, so pull requests
 # never edit them (two pull requests that each regenerated one would always conflict):
 # THIRD-PARTY-LICENSES.txt (`cargo xtask licences`) and docs/features.md (`cargo xtask features`).
 # Pending files (assets/locales/pending, attribution/pending) are folded into the catalogs and
@@ -6,10 +6,26 @@
 name: Generated files

 on:
-  # Nightly, outside merge hours. A push straight to main resets every merge-queue batch, so the
-  # regeneration no longer runs on each push.
-  schedule:
-    - cron: "17 8 * * *"
+  push:
+    branches: [main]
+    # THIRD-PARTY-LICENSES.txt follows the manifests, the lockfile, the vendored crates' licence
+    # files and the fonts' licences; docs/features.md follows the command registry (crates/engine),
+    # read through solidcraft-cli. Other pushes regenerate nothing.
+    paths:
+      - "Cargo.lock"
+      - "**/Cargo.toml"
+      - "vendor/**"
+      # solidcore's licence files are embedded in THIRD-PARTY-LICENSES.txt.
+      - "solidcore/LICENSE"
+      - "solidcore/NOTICE"
+      - "solidcore/ATTRIBUTION.md"
+      - "assets/fonts/**"
+      - "crates/engine/**"
+      - "apps/solidcraft-cli/**"
+      - "xtask/**"
+      - "assets/locales/pending/*.json"
+      - "attribution/pending/*.md"
+      - ".github/workflows/generated.yml"
  workflow_dispatch:

 permissions:
@@ -0,0 +1,43 @@
+# While a new geometry kernel is evaluated, new issues and discussions about kernel work, and new
+# pull requests that change the kernel directories, are labelled `kernel-paused` for a maintainer to
+# answer (CONTRIBUTING.md, "Kernel work is paused"). The logic is in scripts/kernel-paused/ (tested
+# in ci.yml).
+name: Kernel paused
+
+on:
+  issues:
+    types: [opened]
+  # pull_request_target so PRs from forks can be labelled. It runs the base branch's
+  # scripts/kernel-paused and only lists the PR's changed paths; the PR's code is never checked out.
+  pull_request_target:
+    types: [opened]
+  discussion:
+    types: [created]
+
+permissions:
+  contents: read # to check out scripts/kernel-paused
+  issues: write
+  pull-requests: write # to list a PR's changed paths and add its label
+  discussions: write
+
+concurrency:
+  group: kernel-paused-${{ github.event.issue.number || github.event.pull_request.number || github.event.discussion.number }}
+  cancel-in-progress: false
+
+jobs:
+  paused:
+    name: Kernel paused bot
+    runs-on: ubuntu-24.04
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          sparse-checkout: scripts/kernel-paused
+      - uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        with:
+          script: |
+            const paused = require('./scripts/kernel-paused/kernel-paused.js');
+            const done = context.eventName === 'discussion'
+              ? await paused.handleDiscussion({ github, context })
+              : await paused.handleOpened({ github, context });
+            core.info(done);
@@ -17,8 +17,8 @@
 # The trigger paths are whole folders that hold every area's PATHS (a self-test,
 # scripts/ci/test_kernel_rig_plan.py, checks they do), so a pull request that touches none of
 # them (the UI, docs, packaging) starts no runner at all, and a new area needs no edit here: the
-# plan finds the areas from the folders. Merge groups run the areas their batch's diff reaches, like a
-# pull request. Pushes to main and develop on the same paths, the release gate (release-gate.yml, workflow_call) and a run by hand run
+# plan finds the areas from the folders. Pushes to main and develop on the same paths, merge groups
+# (once the queue is on), the release gate (release-gate.yml, workflow_call) and a run by hand run
 # every area; those pushes also commit the compiler cache (a Blacksmith sticky disk) that every
 # other run mounts read-only.
 name: Kernel rig
@@ -96,19 +96,19 @@ jobs:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          # A pull request's diff needs its base's history.
-          fetch-depth: ${{ (github.event_name == 'pull_request' || github.event_name == 'merge_group') && '0' || '1' }}
+          fetch-depth: ${{ github.event_name == 'pull_request' && '0' || '1' }}
      - name: Selection self-test
        run: python3 -I scripts/ci/test_kernel_rig_plan.py
      - id: plan
        name: Map the changed files to areas
        env:
          EVENT_NAME: ${{ github.event_name }}
-          BASE_SHA: ${{ github.event.pull_request.base.sha || github.event.merge_group.base_sha }}
-          HEAD_SHA: ${{ github.event.pull_request.head.sha || github.event.merge_group.head_sha }}
+          BASE_SHA: ${{ github.event.pull_request.base.sha }}
+          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
        run: |
-          # Pull requests and merge groups run the areas their diff reaches (a batch that touches no
-          # kernel path runs none); pushes to main, the release gate and a run by hand run every area.
-          if [ "$EVENT_NAME" = pull_request ] || [ "$EVENT_NAME" = merge_group ]; then
+          # Pull requests run the areas their diff reaches; pushes, merge groups, the release
+          # gate and a run by hand run every area.
+          if [ "$EVENT_NAME" = pull_request ]; then
            git diff --no-renames --name-only -z "$BASE_SHA...$HEAD_SHA" > "$RUNNER_TEMP/rig-paths"
            python3 -I scripts/ci/kernel_rig_plan.py --paths "$RUNNER_TEMP/rig-paths" \
              --github-output "$GITHUB_OUTPUT"
@@ -12,7 +12,7 @@ Work: ROADMAP.md, "Where help is wanted most" in CONTRIBUTING.md, issues labelle
 - Never crash: no unwrap/expect/panic/unsafe in non-test code, errors are `Result`, input is hostile: clippy `-D warnings`, `hostile_params_never_panic`.
 - Model decisions (what an operation does, which bodies it touches, which face or edge a point or name means, depths, nearness) use exact geometry; a mesh is for display, export, previews and mesh bodies (`xtask/mesh-decisions.txt` only shrinks): `cargo xtask mesh-decisions`.
 - Everything is a command and programmatic calls never open dialogs: `skills/solidcraft-commands/SKILL.md`.
- Layering; only `crates/kernel` uses truck; solidcore only via `solidcore-ops`/`-tess`/`-record` (`xtask/solidcore-seam.txt`): `cargo xtask layers`; see `docs/layers.md`.
+- Layering; only `crates/kernel` uses truck; solidcore only via `solidcore-ops`/`-tess`/`-record` (`xtask/solidcore-seam.txt`): `cargo xtask layers`; see `solidcore/docs/layers.md`.
 - One outer UI container, one camera path (`navigation::handle`), colours from theme tokens: `cargo xtask ui-containers`.
 - Application code is Rust only and builds for wasm: `cargo xtask wasm`, `cargo xtask web-offline-test`.
 - The product name is SolidCraft; the old name lives only in `docs/compatibility.md`.
@@ -20,7 +20,7 @@ Work: ROADMAP.md, "Where help is wanted most" in CONTRIBUTING.md, issues labelle
 - A design-format change is ONE new file in `crates/doc/src/format/pending/`: `scripts/test-format-pending.sh`.
 - A command has input and output schemas (will become required; `schema/unconverted.txt` only shrinks): `skills/solidcraft-commands/SKILL.md`.
 - New UI strings go in `assets/locales/pending/<slug>.json`, ATTRIBUTION rows in `attribution/pending/<slug>.md`: `cargo xtask lists`.
- A changed default (existing UI, not kernel results) keeps the old behaviour behind a preference; fill the PR's `Changes a default:` line.
+- A changed default keeps the old behaviour behind a preference and fills the PR's `Changes a default:` line: `pr-checks.yml`.
 - A regression test goes in the area's existing test file, never a per-bug file (#3226).
 - Look at open PRs first, claim with a draft PR (lowest number wins), one topic per PR: `skills/solidcraft-contributing/SKILL.md`.
 - A PR's title and first sentence make sense to someone who never saw your chat or the issue: `skills/solidcraft-contributing/SKILL.md`.
@@ -200,7 +200,7 @@ Editable drawing code, native projects and shipped exports are collected under `
 | assets/platforms/macos/README.txt | PhotoCraft / SolidCraft contributors | PhotoCraft packaging templates (https://github.com/storytold/photocraft), adapted for SolidCraft | Apache-2.0 |
 | assets/platforms/windows/solidcraft.en-us.wxl | PhotoCraft / SolidCraft contributors | PhotoCraft packaging templates (https://github.com/storytold/photocraft), adapted for SolidCraft | Apache-2.0 |
 | assets/platforms/windows/solidcraft.wxs | PhotoCraft / SolidCraft contributors | PhotoCraft packaging templates (https://github.com/storytold/photocraft), adapted for SolidCraft | Apache-2.0 |
-| crates/viewport-gpu/shaders/viewport.wgsl | SolidCraft contributors | Original SolidCraft resource data or drawing code, collected without redesign | MIT OR Apache-2.0 |
+| assets/shaders/viewport.wgsl | SolidCraft contributors | Original SolidCraft resource data or drawing code, collected without redesign | MIT OR Apache-2.0 |
 | assets/styles/ui/themes/gruvbox-dark.json | SolidCraft contributors | original SolidCraft theme file mapping SolidCraft's UI colours to the Gruvbox palette's colour values (Gruvbox by Pavel Pertsev, https://github.com/morhetz/gruvbox, MIT) | MIT OR Apache-2.0 |
 | assets/styles/ui/themes/gruvbox-light.json | SolidCraft contributors | original SolidCraft theme file mapping SolidCraft's UI colours to the Gruvbox palette's colour values (Gruvbox by Pavel Pertsev, https://github.com/morhetz/gruvbox, MIT) | MIT OR Apache-2.0 |
 | assets/styles/ui/themes/solidcraft-95.json | SolidCraft contributors | original SolidCraft theme file | MIT OR Apache-2.0 |
@@ -843,7 +843,6 @@ Original SolidCraft drawings, Open for owner review; no runtime assignments.
 | assets/locales/pending/drag-to-zoom.json | SolidCraft contributors | Original drag-to-zoom labels and translations | MIT OR Apache-2.0 |
 | `assets/locales/pending/hole-group-folder.json` | SolidCraft contributors | Original Hole grouping preference labels and translations | MIT OR Apache-2.0 |
 | assets/locales/pending/press-pull-dialog-title.json | SolidCraft contributors | Original Press Pull dialog title translations for SolidCraft's English catalog; no external text used | MIT OR Apache-2.0 |
-| docs/layers/layers.svg | SolidCraft contributors | original diagram of SolidCraft's crate layers for docs/layers.md, written as SVG in solidcore's docs/layers diagram style | MIT OR Apache-2.0 |

 ## Code adapted from sibling projects

@@ -17,29 +17,15 @@ Before choosing a task, check the [command inventory](docs/features.md) and

 Questions, ideas or want to say what you're working on? Join the [Discord](https://discord.gg/FtU4NQNVDH).

-## Kernel work goes in solidcore/
+## Kernel work is paused

-Kernel and geometry work is welcome: booleans, fillets, chamfers, shell, offsets, sweeps and lofts,
-threads and holes, STEP/IGES import and export, tessellation. It goes in `solidcore/`, the vendored
-solidcore kernel, following [`solidcore/docs/layers.md`](solidcore/docs/layers.md) and
-`skills/solidcraft-layers/SKILL.md`. SolidCraft's own `crates/kernel`, `crates/smlib` and
-`crates/geom` only shrink toward the seam (ops, tess, record); please don't grow them.
-
-A kernel pull request targets `main` like any other; a change that touches the kernel and the app is one
-pull request. A big feature in several steps goes as stacked pull requests into `main`, each one landing in order
-on top of the one before.
-Crashes and data loss are still taken first.
-
-### Updating a PR that was moved from solidcore
-
-solidcore's open PRs were re-opened here on `moved/solidcore-N` branches in tangency-labs, so
-contributors without write access can't push to them. To update one:
-
-1. `git fetch https://github.com/tangency-labs/solidcraft moved/solidcore-N:moved/solidcore-N`, then
-   `git switch moved/solidcore-N`.
-2. Commit your changes on it and push it to your fork: `git push <your-fork> moved/solidcore-N`.
-3. Open a PR against `main` that says "Replaces #M" (M is the moved PR's number). The moved one
-   gets closed.
+We're moving to a new geometry kernel. Until that's done, please don't open pull requests that
+change `crates/kernel/`, `crates/geom/` or the vendored kernel in `solidcore/`, or issues and discussions about kernel
+work: booleans, fillets, chamfers, shell, offsets, sweeps and lofts, threads and holes, STEP/IGES
+import and export, or tessellation. The pinned issue on the tracker explains it. New ones get the
+`kernel-paused` label (`.github/workflows/kernel-paused.yml`) and a maintainer answers them. Crashes
+and data loss are still taken as issues. Pull requests outside those directories carry on as normal,
+including the dialogs and tools for these features.

 ## Get it running (about 10 minutes on a fast machine)

@@ -443,13 +429,9 @@ owning one area, with a human setting direction and reporting bugs. Their workin
 [AGENTS.md](AGENTS.md). Human contributors are just as welcome. Use whatever tools you like, as
 long as the change meets the rules above.

-If you run an agent, keep one long-running session rather than restarting it, don't `--resume` one
-whose prompt cache has gone cold (it re-reads the whole history at full price), and act on CodeRabbit
-comments only when they're about crashes, wrong results, data loss or security.
-
 Two quick checks run on every pull request (`.github/workflows/pr-checks.yml`, not required): it
 fails when a lower-numbered open PR by someone else already closes the same issue (the label
-`not-a-duplicate` skips it), or when the description lacks the `Changes a default: no` / `Changes a default: yes — <what>, old behaviour kept behind preference <name>` line (docs-only and bot PRs are exempt). A default here is a UX default only: a control, setting, preference or tool behaviour a user sees by default; a changed kernel or geometry result is `Changes a default: no`.
+`not-a-duplicate` skips it), or when the description lacks the `Changes a default: no` / `Changes a default: yes — <what>, old behaviour kept behind preference <name>` line (docs-only and bot PRs are exempt).

 ## Labels and triage

@@ -125,21 +125,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b169f7a6d4742236a0a00c541b845991d0ac43e546831af1249753ab4c3aa3a0"
 dependencies = [
 "cfg-if",
- "cipher 0.4.4",
+ "cipher",
 "cpufeatures 0.2.17",
 ]

-[[package]]
-name = "aes"
-version = "0.9.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc0fc36d7440d015b45468ba08a21e80e056ebbd014c611c6298bb7503e04bd1"
-dependencies = [
- "cipher 0.5.2",
- "cpubits",
- "cpufeatures 0.3.1",
-]
-
 [[package]]
 name = "ahash"
 version = "0.8.12"
@@ -154,21 +143,6 @@ dependencies = [
 "zerocopy",
 ]

-[[package]]
-name = "alloc-no-stdlib"
-version = "2.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc7bb162ec39d46ab1ca8c77bf72e890535becd1751bb45f64c597edb4c8c6b3"
-
-[[package]]
-name = "alloc-stdlib"
-version = "0.2.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e76a019e91224d279006ff972f1e984179a6e9feb050adba6ce8274aef23195"
-dependencies = [
- "alloc-no-stdlib",
-]
-
 [[package]]
 name = "allocator-api2"
 version = "0.2.21"
@@ -511,15 +485,6 @@ dependencies = [
 "generic-array",
 ]

-[[package]]
-name = "block-padding"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "710f1dd022ef4e93f8a438b4ba958de7f64308434fa6a87104481645cc30068b"
-dependencies = [
- "hybrid-array",
-]
-
 [[package]]
 name = "block2"
 version = "0.5.1"
@@ -551,16 +516,6 @@ dependencies = [
 "piper",
 ]

-[[package]]
-name = "brotli-decompressor"
-version = "5.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a32acac15fe1967bc3986b2a6347dffc965602354ea6f450ad07e8bfd253583"
-dependencies = [
- "alloc-no-stdlib",
- "alloc-stdlib",
-]
-
 [[package]]
 name = "bumpalo"
 version = "3.20.3"
@@ -748,16 +703,7 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "26b52a9543ae338f279b96b0b9fed9c8093744685043739079ce85cd58f289a6"
 dependencies = [
- "cipher 0.4.4",
-]
-
-[[package]]
-name = "cbc"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ce2dc9ee5f88d11e0beb842c88b33c8a5cf0d1329c4b19494af42b07dbfe8896"
-dependencies = [
- "cipher 0.5.2",
+ "cipher",
 ]

 [[package]]
@@ -822,17 +768,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "773f3b9af64447d2ce9850330c473515014aa235e6a783b02db81ff39e4a3dad"
 dependencies = [
 "crypto-common 0.1.7",
- "inout 0.1.4",
-]
-
-[[package]]
-name = "cipher"
-version = "0.5.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8cf2a2c93cd704877c0858356ed03480ff301ee950b43f1cbe4573b088bfa6c"
-dependencies = [
- "crypto-common 0.2.2",
- "inout 0.2.6",
+ "inout",
 ]

 [[package]]
@@ -951,12 +887,6 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f8f80099a98041a3d1622845c271458a2d73e688351bf3cb999266764b81d48"

-[[package]]
-name = "cpubits"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "15b85f9c39137c3a891689859392b1bd49812121d0d61c9caf00d46ed5ce06ae"
-
 [[package]]
 name = "cpufeatures"
 version = "0.2.17"
@@ -1066,9 +996,9 @@ version = "4.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "708b509edf7889e53d7efb0ffadd994cc6c2345ccb62f55cfd6b0682165e4fa6"
 dependencies = [
- "aes 0.8.4",
- "block-padding 0.3.3",
- "cbc 0.1.2",
+ "aes",
+ "block-padding",
+ "cbc",
 "dbus",
 "fastrand",
 "hkdf",
@@ -1165,15 +1095,6 @@ version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d0881ea181b1df73ff77ffaaf9c7544ecc11e82fba9b5f27b262a3c73a332555"

-[[package]]
-name = "ecb"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26f2a8b3e564eba0877223dc343703ad0385794e882e6d13f3a4dd5c6b1f41ac"
-dependencies = [
- "cipher 0.5.2",
-]
-
 [[package]]
 name = "ecolor"
 version = "0.37.0"
@@ -1704,7 +1625,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ee8cfcc411d9adbbaba82fb72661cc1bcca13e8bba98b364e62b2dba8f960159"
 dependencies = [
 "color_quant",
- "weezl 0.1.12",
+ "weezl",
 ]

 [[package]]
@@ -2147,20 +2068,10 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "879f10e63c20629ecabbb64a8010319738c66a5cd0c29b02d63d272b03751d01"
 dependencies = [
- "block-padding 0.3.3",
+ "block-padding",
 "generic-array",
 ]

-[[package]]
-name = "inout"
-version = "0.2.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a580c13f0ffc335ef42dd3f6b1a41b726051c5e1656d9a3aa6fddb3c5dfbbf9"
-dependencies = [
- "block-padding 0.4.2",
- "hybrid-array",
-]
-
 [[package]]
 name = "itertools"
 version = "0.15.0"
@@ -2405,43 +2316,6 @@ version = "0.4.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f9f8bd3e56ce4dfc153cf470fffbfa98c7620958b312ca5c3a4b8d5181fd13c6"

-[[package]]
-name = "lopdf"
-version = "0.45.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfffda0fe1ab0157e1a13c14bebd3f28671f2fccb7922f0722ec53926e6922d3"
-dependencies = [
- "aes 0.9.4",
- "bitflags 2.13.2",
- "brotli-decompressor",
- "cbc 0.2.1",
- "ecb",
- "encoding_rs",
- "flate2",
- "getrandom 0.4.3",
- "indexmap",
- "itoa",
- "log",
- "md-5",
- "nom",
- "rand 0.10.3",
- "rangemap",
- "sha2 0.11.1",
- "stringprep",
- "thiserror 2.0.21",
- "weezl 0.2.1",
-]
-
-[[package]]
-name = "md-5"
-version = "0.11.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "69b6441f590336821bb897fb28fc622898ccceb1d6cea3fde5ea86b090c4de98"
-dependencies = [
- "cfg-if",
- "digest 0.11.3",
-]
-
 [[package]]
 name = "memchr"
 version = "2.8.3"
@@ -2634,15 +2508,6 @@ dependencies = [
 "memchr",
 ]

-[[package]]
-name = "ntapi"
-version = "0.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3b335231dfd352ffb0f8017f3b6027a4917f7df785ea2143d8af2adc66980ae"
-dependencies = [
- "winapi",
-]
-
 [[package]]
 name = "num"
 version = "0.4.3"
@@ -2908,16 +2773,6 @@ dependencies = [
 "objc2-core-foundation",
 ]

-[[package]]
-name = "objc2-io-kit"
-version = "0.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "33fafba39597d6dc1fb709123dfa8289d39406734be322956a69f0931c73bb15"
-dependencies = [
- "libc",
- "objc2-core-foundation",
-]
-
 [[package]]
 name = "objc2-io-surface"
 version = "0.3.2"
@@ -3456,7 +3311,6 @@ version = "0.10.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "65c9fb96cbc91e3478eaae79a69fcd3f1ae4ad052e471fe6732fff548984b4af"
 dependencies = [
- "chacha20",
 "getrandom 0.4.3",
 "rand_core 0.10.1",
 ]
@@ -3501,12 +3355,6 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ca45419789ae5a7899559e9512e58ca889e41f04f1f2445e9f4b290ceccd1d08"

-[[package]]
-name = "rangemap"
-version = "1.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a611d15b50743feb4c76b7d03edcb0e64f399c26961e4efe6975bc398be6aa3d"
-
 [[package]]
 name = "raw-window-handle"
 version = "0.6.2"
@@ -3882,8 +3730,8 @@ version = "4.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e4d35ad99a181be0a60ffcbe85d680d98f87bdc4d7644ade319b87076b9dbfd4"
 dependencies = [
- "aes 0.8.4",
- "cbc 0.1.2",
+ "aes",
+ "cbc",
 "futures-util",
 "generic-array",
 "hkdf",
@@ -4208,14 +4056,6 @@ dependencies = [
 "thiserror 2.0.21",
 ]

-[[package]]
-name = "solidcore-convert"
-version = "0.1.0"
-dependencies = [
- "solidcore",
- "solidcore-record",
-]
-
 [[package]]
 name = "solidcore-record"
 version = "0.1.0"
@@ -4225,19 +4065,6 @@ dependencies = [
 "thiserror 2.0.21",
 ]

-[[package]]
-name = "solidcore-tess"
-version = "0.1.0"
-dependencies = [
- "rayon",
- "serde",
- "solidcore",
- "solidcore-convert",
- "solidcore-record",
- "spade",
- "thiserror 2.0.21",
-]
-
 [[package]]
 name = "solidcraft"
 version = "0.40.0-rc.3"
@@ -4270,8 +4097,6 @@ dependencies = [
 "solidcraft-theme",
 "solidcraft-ui-egui",
 "solidcraft-ui-text",
- "solidcraft-viewport",
- "solidcraft-viewport-gpu",
 "ureq",
 "windows-sys 0.61.2",
 "winit",
@@ -4296,8 +4121,6 @@ dependencies = [
 "solidcraft-gpu",
 "solidcraft-kernel",
 "solidcraft-mcp",
- "solidcraft-viewport",
- "solidcraft-viewport-gpu",
 ]

 [[package]]
@@ -4341,7 +4164,6 @@ dependencies = [
 "serde_json",
 "sha2 0.10.9",
 "solidcore-record",
- "solidcore-tess",
 "solidcraft-color",
 "solidcraft-derive",
 "solidcraft-geom",
@@ -4349,7 +4171,6 @@ dependencies = [
 "solidcraft-profile",
 "solidcraft-render",
 "solidcraft-sketch",
- "solidcraft-viewport",
 "thiserror 2.0.21",
 "web-time",
 ]
@@ -4385,7 +4206,6 @@ dependencies = [
 "solidcraft-profile",
 "solidcraft-render",
 "solidcraft-sketch",
- "solidcraft-viewport",
 "thiserror 2.0.21",
 "toml_edit",
 "web-time",
@@ -4397,9 +4217,7 @@ version = "0.40.0-rc.3"
 dependencies = [
 "serde",
 "serde_json",
- "solidcore",
 "solidcore-record",
- "solidcore-tess",
 "thiserror 2.0.21",
 ]

@@ -4415,15 +4233,12 @@ dependencies = [
 "serde",
 "serde_json",
 "solidcore-record",
- "solidcore-tess",
 "solidcraft-color",
 "solidcraft-engine",
 "solidcraft-geom",
 "solidcraft-io",
 "solidcraft-kernel",
 "solidcraft-render",
- "solidcraft-viewport",
- "solidcraft-viewport-gpu",
 "thiserror 2.0.21",
 "wgpu",
 ]
@@ -4466,7 +4281,6 @@ dependencies = [
 "serde",
 "serde_json",
 "solidcore-record",
- "solidcore-tess",
 "solidcraft-geom",
 "solidcraft-profile",
 "solidcraft-smlib",
@@ -4486,8 +4300,6 @@ dependencies = [
 "solidcraft-engine",
 "solidcraft-gpu",
 "solidcraft-mcp-server",
- "solidcraft-viewport",
- "solidcraft-viewport-gpu",
 ]

 [[package]]
@@ -4513,19 +4325,15 @@ dependencies = [
 "image",
 "moxcms",
 "png",
- "rayon",
 "robust",
 "serde",
 "serde_json",
 "sha2 0.10.9",
 "solidcore-record",
- "solidcore-tess",
 "solidcraft-color",
 "solidcraft-geom",
- "solidcraft-viewport",
- "sysinfo",
 "web-time",
- "weezl 0.1.12",
+ "weezl",
 ]

 [[package]]
@@ -4594,7 +4402,6 @@ dependencies = [
 "egui-wgpu",
 "image",
 "log",
- "lopdf",
 "minisign-verify",
 "muda",
 "nix 0.31.3",
@@ -4605,7 +4412,6 @@ dependencies = [
 "serde_json",
 "sha2 0.10.9",
 "solidcore-record",
- "solidcore-tess",
 "solidcraft-color",
 "solidcraft-control",
 "solidcraft-control-egui",
@@ -4615,9 +4421,6 @@ dependencies = [
 "solidcraft-theme",
 "solidcraft-ui-registry",
 "solidcraft-ui-text",
- "solidcraft-viewport",
- "solidcraft-viewport-egui",
- "solidcraft-viewport-gpu",
 "syn 2.0.119",
 "tiny-skia",
 "toml",
@@ -4644,45 +4447,6 @@ dependencies = [
 "unicode-bidi",
 ]

-[[package]]
-name = "solidcraft-viewport"
-version = "0.40.0-rc.3"
-dependencies = [
- "image",
- "serde",
- "serde_json",
- "solidcore-record",
- "solidcore-tess",
- "solidcraft-color",
-]
-
-[[package]]
-name = "solidcraft-viewport-egui"
-version = "0.40.0-rc.3"
-dependencies = [
- "egui",
- "egui-wgpu",
- "log",
- "solidcraft-viewport-gpu",
- "wgpu",
-]
-
-[[package]]
-name = "solidcraft-viewport-gpu"
-version = "0.40.0-rc.3"
-dependencies = [
- "log",
- "naga",
- "pollster 0.4.0",
- "serde",
- "solidcore-record",
- "solidcore-tess",
- "solidcraft-color",
- "solidcraft-viewport",
- "thiserror 2.0.21",
- "wgpu",
-]
-
 [[package]]
 name = "solidcraft-web"
 version = "0.40.0-rc.3"
@@ -4742,17 +4506,6 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6637bab7722d379c8b41ba849228d680cc12d0a45ba1fa2b48f2a30577a06731"

-[[package]]
-name = "stringprep"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b4df3d392d81bd458a8a621b8bffbd2302a12ffe288a9d931670948749463b1"
-dependencies = [
- "unicode-bidi",
- "unicode-normalization",
- "unicode-properties",
-]
-
 [[package]]
 name = "subtle"
 version = "2.6.1"
@@ -4804,20 +4557,6 @@ dependencies = [
 "web-sys",
 ]

-[[package]]
-name = "sysinfo"
-version = "0.40.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e8a3edbe0394ce115f3917a00349dd242be09eb5a091ed509eaf67b55cfb8a8"
-dependencies = [
- "libc",
- "memchr",
- "ntapi",
- "objc2-core-foundation",
- "objc2-io-kit",
- "windows",
-]
-
 [[package]]
 name = "tempfile"
 version = "3.27.0"
@@ -4890,7 +4629,7 @@ dependencies = [
 "flate2",
 "half",
 "quick-error",
- "weezl 0.1.12",
+ "weezl",
 "zune-jpeg",
 ]

@@ -4929,12 +4668,6 @@ dependencies = [
 "zerovec",
 ]

-[[package]]
-name = "tinyvec"
-version = "1.13.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd3ca314f692efd6c868f8408f53fe444634a845f96c028b97d35f6a1f79f0ee"
-
 [[package]]
 name = "tokio"
 version = "1.53.2"
@@ -5112,15 +4845,6 @@ version = "1.0.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d245f478577f809a851594d02313b640fb437e0bb33866753cff937863096954"

-[[package]]
-name = "unicode-normalization"
-version = "0.1.26"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "75cd3fb03d5288b3ba9a1ee103ac7e9cbb59f0b03d64f8ddfcc04dd42758a85d"
-dependencies = [
- "tinyvec",
-]
-
 [[package]]
 name = "unicode-properties"
 version = "0.1.5"
@@ -5502,12 +5226,6 @@ version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a28ac98ddc8b9274cb41bb4d9d4d5c425b6020c50c46f25559911905610b4a88"

-[[package]]
-name = "weezl"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d4ca08e5ef825b65b056d9efbd95c8750683f0a6d0466d02e96dc2e4e360f3d2"
-
 [[package]]
 name = "wgpu"
 version = "30.0.1"
@@ -5691,22 +5409,6 @@ dependencies = [
 "web-sys",
 ]

-[[package]]
-name = "winapi"
-version = "0.3.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
-dependencies = [
- "winapi-i686-pc-windows-gnu",
- "winapi-x86_64-pc-windows-gnu",
-]
-
-[[package]]
-name = "winapi-i686-pc-windows-gnu"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
-
 [[package]]
 name = "winapi-util"
 version = "0.1.11"
@@ -5716,12 +5418,6 @@ dependencies = [
 "windows-sys 0.61.2",
 ]

-[[package]]
-name = "winapi-x86_64-pc-windows-gnu"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
-
 [[package]]
 name = "windows"
 version = "0.62.2"
@@ -33,9 +33,6 @@ solidcraft-ui-registry = { path = "crates/ui-registry" }
 solidcraft-color = { path = "crates/color" }
 solidcraft-ui-text = { path = "crates/ui-text" }
 solidcraft-theme = { path = "crates/theme" }
-solidcraft-viewport = { path = "crates/viewport" }
-solidcraft-viewport-egui = { path = "crates/viewport-egui" }
-solidcraft-viewport-gpu = { path = "crates/viewport-gpu" }
 solidcraft-space-mouse = { path = "crates/space-mouse" }
 solidcraft-mcp = { path = "crates/mcp" }
 solidcraft-mcp-server = { path = "crates/mcp-server" }
@@ -50,10 +47,6 @@ solidcore = { path = "solidcore/crates/solidcore" }
 # Geometry as data (solidcore's layers §1, "Record"): the B-rep record, its structural validation
 # and the native body file. Vendored with solidcore, in the same subtree.
 solidcore-record = { path = "solidcore/crates/solidcore-record" }
-# Geometry made drawable (solidcore's layers §3): the one mesher, SolidCraft's, moved into the
-# subtree (RFC 0003, item 1.1), with the display mesh and its levels of detail, the types
-# SolidCraft's meshes are. Vendored with solidcore, in the same subtree.
-solidcore-tess = { path = "solidcore/crates/solidcore-tess" }
 # test tooling: a dev-dependency only (xtask/src/layers.rs)
 solidcraft-testkit = { path = "crates/testkit" }

@@ -76,8 +69,6 @@ semver = "1"
 # constrained Delaunay + Ruppert refinement for trimmed faces (MIT OR Apache-2.0).
 spade = { version = "2.15", default-features = false, features = ["std"] }
 rayon = "1.12"
-# Native render-memory admission; RAM-only queries through a safe MIT-licensed API.
-sysinfo = { version = "0.40.1", default-features = false, features = ["system"] }

 # packages (3MF)
 zip = { version = "9", default-features = false, features = ["deflate"] }
@@ -28,8 +28,6 @@ raytrace-cpu = ["solidcraft-engine/raytrace-cpu"]
 profile = ["solidcraft-engine/profile"]

 [dependencies]
-solidcraft-viewport-gpu = { workspace = true }
-solidcraft-viewport = { workspace = true }
 solidcore-record = { workspace = true }
 solidcraft-engine = { workspace = true }
 solidcraft-gpu = { workspace = true }
@@ -85,9 +85,9 @@ fn run() -> Result<(), String> {
    // Vulkan device, parse GPU policy or initialize a GPU host.
    let (adapter_report, gpu_host_seconds) = if needs_gpu(&session, &params)? {
        let gpu_host_start = Instant::now();
-        let policy = solidcraft_gpu::env::policy().map_err(|e| e.to_string())?;
+        let policy = solidcraft_gpu::select::Policy::from_env().map_err(|e| e.to_string())?;
        let (adapter, report) =
-            solidcraft_viewport_gpu::select::pick_path(policy, |_| true).ok_or("no Vulkan or Metal adapter satisfies the requested GPU policy")?;
+            solidcraft_gpu::select::pick_path(policy, |_| true).ok_or("no Vulkan or Metal adapter satisfies the requested GPU policy")?;
        session.register_render_job_host(solidcraft_gpu::path::host_on_adapter(&adapter).map_err(|e| e.to_string())?).map_err(|e| e.to_string())?;
        (Some(report), Some(gpu_host_start.elapsed().as_secs_f64()))
    } else {
@@ -76,7 +76,7 @@ const USAGE_BENCH_ASSISTANT: &str = "  solidcraft-cli bench-assistant --connect
 /// `snapshot`'s lines in the usage.
 const USAGE_SNAPSHOT: &str = "  solidcraft-cli snapshot <script|design> [--in design.sc|part.step] --out shot.png [--width W] [--height H] [--view NAME | --camera JSON] [--no-grid] [--no-axes]\n      [--body NAME:opacity=0.3,color=#rrggbb]... [--tool NAME]... [--section z=27] [--quality coarse|normal|fine|ultra]\n  solidcraft-cli snapshot --in <design.sc|part.step> --out shot.png ...\n      (as with run, --in starts from a design and the script runs on top of it; an option snapshot doesn't take is an error;\n       --view: iso, front, back, top, bottom, left, right, or the name of a view saved in the design with view.save;\n       --camera: {target: [x,y,z], yaw, pitch, distance, fov?} in mm and radians, as the MCP screenshot takes it (docs/mcp.md);\n       --no-grid and --no-axes leave the ground grid (on Z 0) and the origin's axes out of the picture;\n       --body: how one body is drawn, as appearance.assign takes it: opacity 0-1 (below 1 is see-through, so what is inside\n         it shows) and color #rrggbb, either or both, once per body;\n       --tool: draw this body solid in the tool colour and every other body see-through, so a cut's or a join's tool body\n         is visible inside the material it meets; a later --body overrides it;\n       --section: cut the model as inspect.section does, so the inside shows: z=27 (the plane through that world\n         coordinate, keeping the smaller side), add ,flip to keep the other side, or XY, XZ, YZ, or its own JSON;\n       --quality: the display quality the bodies are meshed at, as the app's setting (default normal))\n";
 /// `render`'s lines in the usage.
-const USAGE_RENDER: &str = "  solidcraft-cli render <script|design> --out image.png [--setup NAME] [--width W] [--height H] [--transparent] [--overwrite] [--timeout SECONDS]\n      [--progressive] [--samples N] [--max-depth N] [--seed N] [--exposure EV] [--lighting FILE.json] [--environment FILE.json] [--tone-map reinhard|aces_fitted] [--legacy-memory-admission]\n      --legacy-memory-admission skips available-RAM checks; fixed shared/host budgets and allocation limits still apply.\n";
+const USAGE_RENDER: &str = "  solidcraft-cli render <script|design> --out image.png [--setup NAME] [--width W] [--height H] [--transparent] [--overwrite] [--timeout SECONDS]\n      [--progressive] [--samples N] [--max-depth N] [--seed N] [--exposure EV] [--lighting FILE.json] [--environment FILE.json] [--tone-map reinhard|aces_fitted]\n";
 /// `exec`'s lines in the usage.
 const USAGE_EXEC: &str = "  solidcraft-cli exec <command> [json-params]\n";
 /// `commands`'s lines in the usage.
@@ -653,9 +653,9 @@ fn cmd_script(args: &[String]) -> Result<(), String> {

 /// `gpu`: the headless adapter survey and the policy's pick.
 fn cmd_gpu(args: &[String]) -> Result<(), String> {
-    use solidcraft_viewport_gpu::select::{Policy, survey};
+    use solidcraft_gpu::select::{Policy, survey};
    let policy = match args {
-        [] => solidcraft_gpu::env::policy()?,
+        [] => Policy::from_env()?,
        [flag, v] if flag == "--policy" => Policy::parse(v).ok_or_else(|| format!("--policy must be auto, hardware, software or cpu, not `{v}`"))?,
        _ => return Err("usage: solidcraft-cli gpu [--policy auto|hardware|software|cpu]".into()),
    };
@@ -675,7 +675,7 @@ fn cmd_gpu(args: &[String]) -> Result<(), String> {
        }))
    );
    match s.lands_on {
-        Some(solidcraft_viewport_gpu::select::Landing::Cpu) => {
+        Some(solidcraft_gpu::select::Landing::Cpu) => {
            solidcraft_engine::note!("warning: {}", solidcraft_engine::capture::CPU_WARNING);
            Ok(())
        }
@@ -691,7 +691,7 @@ fn cmd_gpu(args: &[String]) -> Result<(), String> {
 /// error that names the policy.
 fn install_renderer() {
    solidcraft_engine::capture::install(std::sync::Arc::new(|scene, cam, w, h| {
-        let (rgba, renderer) = solidcraft_gpu::env::headless_rgba(scene, cam, w, h)?;
+        let (rgba, renderer) = solidcraft_gpu::capture::headless_rgba(scene, cam, w, h)?;
        Ok(solidcraft_engine::capture::Picture { rgba, renderer })
    }));
 }
@@ -778,7 +778,7 @@ fn cmd_icon(args: &[String]) -> Result<(), String> {
 }

 fn icon_png(size: usize) -> Result<Vec<u8>, String> {
-    solidcraft_viewport::png(size, size, app_icon::rgba(size)?).ok_or_else(|| "icon: PNG encoding failed".to_string())
+    solidcraft_engine::render::png(size, size, app_icon::rgba(size)?).ok_or_else(|| "icon: PNG encoding failed".to_string())
 }

 /// A Windows icon file holding PNG images (Vista and later read these).
@@ -3,7 +3,7 @@ use serde_json::{Value, json};
 use solidcraft_engine::{
    Session,
    doc::render_settings::{RenderJob, RenderSetup},
-    render::job::{CpuHost, JobId, NativeMemoryPolicy, Phase, ToneMap},
+    render::job::{CpuHost, JobId, Phase, ToneMap},
 };

 /// Only explicit runtime CLI flags are stored here. A typed setup owns these
@@ -74,7 +74,6 @@ pub fn run(args: &[String]) -> Result<(), String> {
    let mut height = None;
    let mut exposure = None;
    let mut runtime = RuntimeOptions::default();
-    let mut memory_policy = NativeMemoryPolicy::AvailableRam;
    let mut overwrite = false;
    let mut timeout = 120u64;
    let mut i = 1;
@@ -83,7 +82,6 @@ pub fn run(args: &[String]) -> Result<(), String> {
            "--progressive" => runtime.progressive = true,
            "--transparent" => runtime.transparent = true,
            "--overwrite" => overwrite = true,
-            "--legacy-memory-admission" => memory_policy = NativeMemoryPolicy::SoftwarePoolOnly,
            "--out" | "--setup" | "--width" | "--height" | "--timeout" | "--samples" | "--max-depth" | "--seed" | "--exposure" | "--lighting"
            | "--tone-map" | "--environment" => {
                i += 1;
@@ -136,15 +134,9 @@ pub fn run(args: &[String]) -> Result<(), String> {
    // Resolve saved intent before opening a GPU or explicitly settling geometry.
    // Width/height/exposure only change this validated inline settings clone.
    let (mut params, needs_gpu) = runtime.request(&session, settings)?;
-    // The machine admission policy may accompany any saved setup; it does not
-    // replace the setup's image-quality options or alter the saved document.
-    let cpu_host = CpuHost::for_platform().map_err(|e| e.to_string())?;
-    cpu_host.set_native_memory_policy(memory_policy);
-    session.set_render_job_host(Some(cpu_host)).map_err(|e| e.to_string())?;
+    session.set_render_job_host(Some(CpuHost::for_platform().map_err(|e| e.to_string())?)).map_err(|e| e.to_string())?;
    if needs_gpu {
-        let gpu_host = solidcraft_gpu::path::host().map_err(|e| e.to_string())?;
-        gpu_host.set_native_memory_policy(memory_policy);
-        session.register_render_job_host(gpu_host).map_err(|e| e.to_string())?;
+        session.register_render_job_host(solidcraft_gpu::path::host().map_err(|e| e.to_string())?).map_err(|e| e.to_string())?;
    }
    session.execute("render.scene", &json!({})).map_err(|e| e.to_string())?;
    if setup.is_none() {
@@ -152,9 +144,7 @@ pub fn run(args: &[String]) -> Result<(), String> {
            camera
        } else {
            let mut camera = RenderSetup::default().camera;
-            camera.fit(&solidcraft_engine::render::view_bounds(
-                &solidcraft_engine::product_scene::extract(&session).map_err(|e| e.to_string())?.bounds,
-            ));
+            camera.fit(&solidcraft_engine::product_scene::extract(&session).map_err(|e| e.to_string())?.bounds);
            camera
        };
        params["settings"]["camera"] = json!(camera);
@@ -1,7 +1,6 @@
 //! The bracket example must cut two through holes, rather than successfully cutting empty
 //! space beside the body. Check the shipped script and rebuild its saved design from scratch.

-use solidcraft_engine::geom::MeshGeom;
 use std::f64::consts::PI;

 use serde_json::Value;
@@ -152,17 +152,7 @@ fn render_help_keeps_the_registered_gpu_request_controls() {
        assert!(output.status.success(), "{args:?}: {}", String::from_utf8_lossy(&output.stderr));
        assert!(output.stderr.is_empty());
        let stdout = String::from_utf8_lossy(&output.stdout);
-        for flag in [
-            "--progressive",
-            "--samples",
-            "--max-depth",
-            "--seed",
-            "--exposure",
-            "--lighting",
-            "--environment",
-            "--tone-map",
-            "--legacy-memory-admission",
-        ] {
+        for flag in ["--progressive", "--samples", "--max-depth", "--seed", "--exposure", "--lighting", "--environment", "--tone-map"] {
            assert!(stdout.contains(flag), "{args:?} lost {flag}: {stdout}");
        }
    }
@@ -507,7 +507,7 @@ fn snapshot_runs_its_script_on_the_in_design() {
        std::fs::read(&png).unwrap()
    };
    // Pictures are drawn on the GPU: without an adapter only the option checks below run.
-    match solidcraft_viewport_gpu::capture::shared(solidcraft_gpu::env::policy().unwrap_or_else(|e| panic!("{e}"))) {
+    match solidcraft_gpu::capture::shared() {
        Ok(_) => {
            let alone = shot("alone.png", &[shifted.as_os_str()]);
            let on_base = shot("on_base.png", &[shifted.as_os_str(), "--in".as_ref(), base.as_os_str()]);
@@ -515,7 +515,7 @@ fn snapshot_runs_its_script_on_the_in_design() {
            assert_ne!(alone, on_base, "the script ran on the --in design");
            assert_ne!(base_only, on_base);
        }
-        Err(e @ solidcraft_viewport_gpu::GpuError::NoAdapter(_)) if std::env::var_os("SOLIDCRAFT_REQUIRE_GPU").is_none() => {
+        Err(e @ solidcraft_gpu::GpuError::NoAdapter(_)) if std::env::var_os("SOLIDCRAFT_REQUIRE_GPU").is_none() => {
            eprintln!("pictures left out: {e}")
        }
        Err(e) => panic!("{e}"),
@@ -673,7 +673,6 @@ fn render_uses_typed_cpu_setups_from_scripts_and_saved_designs() {
                .unwrap(),
        );
        assert_eq!(result["preflight"]["resolved"]["executor"], "cpu-raytrace");
-        assert_eq!(result["preflight"]["admission"]["host_memory"]["policy"], "available_ram");
        assert_eq!(result["export"]["frame"]["executor"], "cpu-raytrace");
        assert_eq!(result["preflight"]["request"]["integrator"], "raytrace");
        assert_eq!(result["preflight"]["request"]["raytrace"].get("progressive"), options.get("progressive"));
@@ -690,12 +689,11 @@ fn render_uses_typed_cpu_setups_from_scripts_and_saved_designs() {
                .arg(&saved)
                .args(["--setup", "Portable setup", "--out"])
                .arg(&overridden)
-                .args(["--width", "12", "--height", "8", "--exposure", "1.25", "--legacy-memory-admission"])
+                .args(["--width", "12", "--height", "8", "--exposure", "1.25"])
                .env("SOLIDCRAFT_GPU", "must-not-be-read-for-cpu")
                .output()
                .unwrap(),
        );
-        assert_eq!(result["preflight"]["admission"]["host_memory"]["policy"], "software_pool_only");
        assert_eq!(result["preflight"]["request"]["width"], 12);
        assert_eq!(result["preflight"]["request"]["height"], 8);
        assert_eq!(result["preflight"]["request"]["raytrace"]["exposure_ev"], 1.25);
@@ -775,13 +773,7 @@ fn typed_gpu_render_selects_its_host_without_a_progressive_runtime_flag() {
        let script = render_setup_script(&dir, job.clone());
        let out = dir.0.join("gpu.png");
        let mut command = cli();
-        command
-            .arg("render")
-            .arg(&script)
-            .args(["--setup", "Portable setup", "--out"])
-            .arg(&out)
-            .arg("--legacy-memory-admission")
-            .env("SOLIDCRAFT_GPU", "not-a-gpu-policy");
+        command.arg("render").arg(&script).args(["--setup", "Portable setup", "--out"]).arg(&out).env("SOLIDCRAFT_GPU", "not-a-gpu-policy");
        if job.is_null() {
            command.arg("--progressive");
        }
@@ -17,14 +17,14 @@ static NEXT: AtomicUsize = AtomicUsize::new(0);
 /// Whether pictures can be drawn here; installs the renderer the CLI installs, so the MCP
 /// `screenshot` in this process draws as `solidcraft-cli mcp` does.
 fn gpu() -> bool {
-    match solidcraft_viewport_gpu::capture::shared(solidcraft_gpu::env::policy().unwrap_or_else(|e| panic!("{e}"))) {
+    match solidcraft_gpu::capture::shared() {
        Ok(c) => {
            solidcraft_engine::capture::install(std::sync::Arc::new(move |scene, cam, w, h| {
                c.rgba(scene, cam, w, h).map(|rgba| solidcraft_engine::capture::Picture { rgba, renderer: c.renderer() }).map_err(|e| e.to_string())
            }));
            true
        }
-        Err(e @ solidcraft_viewport_gpu::GpuError::NoAdapter(_)) if std::env::var_os("SOLIDCRAFT_REQUIRE_GPU").is_none() => {
+        Err(e @ solidcraft_gpu::GpuError::NoAdapter(_)) if std::env::var_os("SOLIDCRAFT_REQUIRE_GPU").is_none() => {
            eprintln!("skipping: {e}");
            false
        }
@@ -172,7 +172,7 @@ fn a_saved_view_is_its_camera_and_a_standard_view_is_unchanged() {
    let mut s = Session::default();
    s.run_script(&serde_json::from_slice(&std::fs::read(&script).unwrap()).unwrap()).unwrap();
    let mut cam = solidcraft_engine::view::home_camera(&s).unwrap();
-    cam.set_view(solidcraft_viewport::StandardView::Top);
+    cam.set_view(solidcraft_engine::render::StandardView::Top);
    let scene = solidcraft_engine::view::scene(&s, &cam).unwrap();
    assert_same(&top, &solidcraft_engine::capture::png(&scene, &cam, SIZE.0, SIZE.1).unwrap().bytes, "the home camera turned to the top");
    assert_same(&top, &dir.mcp(&script, "mcp-top.png", json!({"view": "top"})), "the MCP top view");
@@ -336,9 +336,9 @@ fn a_forced_cpu_snapshot_is_the_cpu_rasterizers_and_says_so() {
    let mut s = Session::default();
    s.run_script(&serde_json::from_slice(&std::fs::read(&script).unwrap()).unwrap()).unwrap();
    let mut cam = solidcraft_engine::view::home_camera(&s).unwrap();
-    cam.set_view(solidcraft_viewport::StandardView::Top);
+    cam.set_view(solidcraft_engine::render::StandardView::Top);
    let scene = solidcraft_engine::view::scene(&s, &cam).unwrap();
-    let cpu = solidcraft_viewport::render_png(&scene, &cam, SIZE.0 as usize, SIZE.1 as usize).unwrap();
+    let cpu = solidcraft_engine::render::render_png(&scene, &cam, SIZE.0 as usize, SIZE.1 as usize).unwrap();
    assert_eq!(std::fs::read(dir.0.join("cpu.png")).unwrap(), cpu);
 }

@@ -360,7 +360,7 @@ mod web {
        /// The start page's recent designs were filled from the stored ones.
        recents_synced: bool,
        /// On-demand script fonts: fetched only when a CJK language is selected.
-        font: solidcraft_ui_egui::ui_kit::type_face::CjkFontLoader,
+        font: solidcraft_ui_egui::fonts::CjkFontLoader,
        font_result: FontLoadResult,
        /// The fetched Japanese font's bytes: kept so a language change can re-order the fallbacks.
        cjk_bytes: Option<Vec<u8>>,
@@ -1059,7 +1059,7 @@ mod web {
                    }
                };
                let effective = solidcraft_ui_text::effective_language(&self.app.preferences.language);
-                if !installed && solidcraft_ui_egui::ui_kit::type_face::needs_cjk_font(effective) {
+                if !installed && solidcraft_ui_egui::fonts::needs_cjk_font(effective) {
                    log::warn!("script font unavailable; showing English for this session");
                }
                self.font.finished(installed, &mut self.app.preferences.language);
@@ -1093,7 +1093,7 @@ mod web {
        /// CJK text on screen with no Japanese font yet (an English UI showing a Japanese name):
        /// fetch the Japanese font, so the text does not stay tofu (#720).
        fn watch_text_for_font(&mut self, ctx: &egui::Context) {
-            if self.font.watching_text() && solidcraft_ui_egui::ui_kit::type_face::painted_cjk(ctx) && self.font.text_needs_font() {
+            if self.font.watching_text() && solidcraft_ui_egui::fonts::painted_cjk(ctx) && self.font.text_needs_font() {
                self.fetch_font(ctx, "ja");
            }
        }
@@ -30,8 +30,6 @@ type_complexity = "allow"
 neg_cmp_op_on_partial_ord = "allow"

 [dependencies]
-solidcraft-viewport-gpu = { workspace = true }
-solidcraft-viewport = { workspace = true }
 solidcraft-engine = { workspace = true }
 solidcraft-control = { workspace = true }
 # The D3D12 shader compiler the window starts with (#6756).
@@ -261,11 +261,7 @@ impl eframe::App for App {
            ctx.send_viewport_cmd(egui::ViewportCommand::Close);
        }
    }
-    /// The frame's input before egui reads it: the release of a press handed to a window move
-    /// or resize, the macOS menu and full-screen fixes, the 3D mouse, then the app's own hook.
    fn raw_input_hook(&mut self, ctx: &egui::Context, raw: &mut egui::RawInput) {
-        // First: the release of a press the last frame handed to a window move or resize (#13334).
-        solidcraft_ui_egui::window_chrome::release_press_taken_by_os(ctx, raw);
        #[cfg(target_os = "macos")]
        if let Some(menu) = &mut self.native_menu {
            menu.raw_input_hook(&mut self.solve, ctx, raw);
@@ -1233,7 +1229,7 @@ fn main() -> eframe::Result {
                app.session.undo.clear();
                // Built straight into the session, so nothing asked for a fit: frame it at the
                // home view as any opened design is (#9195). The fit waits for the first layout.
-                app.cam.set_view(solidcraft_viewport::StandardView::Iso);
+                app.cam.set_view(solidcraft_engine::render::StandardView::Iso);
                app.fit_view();
            }
            // Lock files next to open designs: a design open on another computer says so (#5467),
@@ -1364,7 +1360,7 @@ fn wgpu_options(cpu: bool, preference: Option<&str>) -> eframe::egui_wgpu::WgpuC
        let indirect = std::env::var(startup::INDIRECT_VALIDATION_ENV).ok();
        setup.instance_descriptor.flags = startup::window_instance_flags(setup.instance_descriptor.flags, intel_mac, indirect.as_deref());
        // Never a `dxcompiler.dll` another program put on PATH (#6756).
-        setup.instance_descriptor.backend_options.dx12.shader_compiler = solidcraft_viewport_gpu::dx12_compiler();
+        setup.instance_descriptor.backend_options.dx12.shader_compiler = solidcraft_gpu::dx12_compiler();
        let environment = std::env::var("WGPU_ADAPTER_NAME").ok();
        let adapter = graphics().and_then(|v| v.get("adapter").and_then(serde_json::Value::as_str).map(str::to_string));
        startup::configure_adapter(setup, cpu, environment, adapter);
@@ -260,7 +260,7 @@ pub const FLOAT_DEPTH_STENCIL: eframe::wgpu::Features = eframe::wgpu::Features::
 /// asks for a float one only when whichever it picks has it.
 pub fn float_depth_everywhere(options: &eframe::egui_wgpu::WgpuConfiguration) -> bool {
    let eframe::egui_wgpu::WgpuSetup::CreateNew(setup) = &options.wgpu_setup else { return false };
-    let mut desc = solidcraft_viewport_gpu::instance_descriptor_from_env();
+    let mut desc = solidcraft_gpu::instance_descriptor_from_env();
    desc.backends = setup.instance_descriptor.backends;
    let instance = eframe::wgpu::Instance::new(desc);
    let adapters = pollster::block_on(instance.enumerate_adapters(setup.instance_descriptor.backends));
@@ -277,7 +277,7 @@ pub fn has_hardware_adapter(backends: eframe::wgpu::Backends) -> bool {
    let mut desc = eframe::wgpu::InstanceDescriptor::new_without_display_handle();
    desc.backends = backends;
    desc.flags = eframe::wgpu::InstanceFlags::from_build_config().with_env();
-    desc.backend_options.dx12.shader_compiler = solidcraft_viewport_gpu::dx12_compiler();
+    desc.backend_options.dx12.shader_compiler = solidcraft_gpu::dx12_compiler();
    let instance = eframe::wgpu::Instance::new(desc);
    let adapters = pollster::block_on(instance.enumerate_adapters(backends));
    let found: Vec<String> = adapters.iter().map(|a| format!("{} ({:?})", a.get_info().name, a.get_info().device_type)).collect();
@@ -698,7 +698,7 @@ mod tests {
        if cfg!(target_os = "windows") && std::env::var_os(WGPU_BACKEND_ENV).is_none() {
            assert_eq!(backends, eframe::wgpu::Backends::DX12);
        }
-        let mut desc = solidcraft_viewport_gpu::instance_descriptor_from_env();
+        let mut desc = solidcraft_gpu::instance_descriptor_from_env();
        desc.backends = backends;
        let instance = eframe::wgpu::Instance::new(desc);
        let adapters = pollster::block_on(instance.enumerate_adapters(backends));
@@ -21,6 +21,7 @@ assets/
  styles/web/loading.css             # web loading/canvas styles
  appearances/library.rs             # built-in visual presets
  materials/library.rs               # physical defaults and colours
+  shaders/viewport.wgsl               # original viewport shader
  fonts/biz-udp-gothic/              # unmodified font and OFL licence
  locales/{en,de,ja,ko}.json          # shared offline catalogs
  platforms/{macos,linux,windows}/    # bundle, freedesktop and WiX templates
@@ -150,16 +150,16 @@ pub(crate) fn curved_arrow(painter: &egui::Painter, at: Pos2, clockwise: bool, h
 }
 /// The pointer target around a compass end: larger than the drawn disc, so it is easy to hit.
 pub(crate) const AXIS_RADIUS: f32 = 15.0;
-pub(crate) fn axis_tip(painter: &egui::Painter, c: Pos2, name: &str, d: [f64; 3], at: Pos2, depth: f64, hovered: bool, t: Tokens) {
+pub(crate) fn axis_tip(painter: &egui::Painter, c: Pos2, name: &str, d: &Vec3, at: Pos2, depth: f64, hovered: bool, t: Tokens) {
    axis_tip_scaled(painter, c, name, d, at, depth, hovered, t, 1.0);
 }

 /// The same compass artwork at a uniform scale, including its lettering and strokes.
 #[allow(clippy::too_many_arguments)]
-pub(crate) fn axis_tip_scaled(painter: &egui::Painter, c: Pos2, name: &str, d: [f64; 3], at: Pos2, depth: f64, hovered: bool, t: Tokens, scale: f32) {
-    let col = if d[0] != 0.0 {
+pub(crate) fn axis_tip_scaled(painter: &egui::Painter, c: Pos2, name: &str, d: &Vec3, at: Pos2, depth: f64, hovered: bool, t: Tokens, scale: f32) {
+    let col = if d.x != 0.0 {
        t.axis_x
-    } else if d[1] != 0.0 {
+    } else if d.y != 0.0 {
        t.axis_y
    } else {
        t.axis_z
@@ -196,7 +196,7 @@ pub(crate) fn axis_tip_scaled(painter: &egui::Painter, c: Pos2, name: &str, d: [
        // On a hovered (white) disc the letter takes the axis colour.
        let letter = if hovered { col } else { t.on_accent };
        let label = name.to_uppercase();
-        let galley = painter.layout_no_wrap(label, crate::ui_kit::type_face::bold(solidcraft_theme::Tokens::get().font_compass * scale), letter);
+        let galley = painter.layout_no_wrap(label, crate::fonts::bold(solidcraft_theme::Tokens::get().font_compass * scale), letter);
        let origin = at - galley.size() / 2.0;
        let ppp = painter.ctx().pixels_per_point().max(0.5);
        let origin = pos2((origin.x * ppp).round() / ppp, (origin.y * ppp).round() / ppp);
@@ -1509,7 +1509,6 @@
  "cmd.timeline_stop": "إيقاف السجل",
  "cmd.timeline_suppress": "تعطيل الميزة",
  "cmd.ui.assistant": "إظهار المساعد أو إخفاؤه",
-  "cmd.ui.palette": "البحث في الأوامر",
  "cmd.view.navigator": "متصفح العرض المخصص",
  "cmd.view.render_browser": "مستعرض التصيير",
  "cmd.view.render_dock": "نقل لوحة التصيير",
@@ -2432,7 +2431,6 @@
  "parts.dimension.width": "العرض",
  "parts.family.bearing": "محمل كريات أخدودي عميق (الغلاف)",
  "parts.family.button_head_cap_screw": "برغي برأس زرّي بتجويف سداسي",
-  "parts.family.countersunk_socket_screw": "برغي برأس غاطس بتجويف سداسي",
  "parts.family.dowel_pin": "مسمار توجيه أسطواني",
  "parts.family.hex_bolt": "برغي سداسي الرأس",
  "parts.family.hex_cap_screw_inch": "برغي سداسي الرأس (بوصة)",
@@ -2828,8 +2826,6 @@
  "prefs.remember_dialog_values.help": "معطّل افتراضيًا. عند تفعيله، بعد نجاح الأمر، يُعاد استخدام قيمه وخياراته الآمنة في المرة التالية التي تفتح فيها الأمر نفسه، حتى إغلاق SolidCraft.",
  "prefs.render_legacy_image_defaults": "استخدام الإعدادات الافتراضية السابقة لصور التصيير",
  "prefs.render_legacy_image_defaults_help": "الاحتفاظ بسير العمل اليدوي السابق: إعدادات جديدة بالتصيير النقطي على CPU، وأخذ العينات الثابت لتتبع الأشعة على CPU، وفتح النتائج يدويًا. إعادة ملاءمة العرض عند دخول التصيير، وتبديل اللقطات دون استعادة كاميراتها، واستخدام التأطير والتنقل السابقين. تعطيل التحديث التلقائي للصورة المباشرة. لا تتغير الإعدادات المحفوظة.",
-  "prefs.render_legacy_memory_admission": "استخدام فحوصات ذاكرة التصيير السابقة",
-  "prefs.render_legacy_memory_admission_help": "السماح بالتصيير المحلي ضمن حدود الذاكرة المشتركة وحدود المضيف الثابتة حتى عندما يتجاوز التقدير الذاكرة المتاحة. تظل حدود الجهاز وفحوصات تخصيص الذاكرة سارية.",
  "prefs.render_previous_geometry_budget": "استخدام ميزانية الهندسة السابقة لمعاينة التصيير",
  "prefs.render_previous_geometry_budget_help": "استعادة حد الهندسة الثابت السابق (512 ميبيبايت على سطح المكتب 64 بت، و128 ميبيبايت على المنصات الأخرى) بدلًا من الميزانية المعتمدة على الجهاز.",
  "prefs.reports_saved": "{n} محفوظة",
@@ -3224,10 +3220,8 @@
  "render.category_paint": "طلاء",
  "render.category_plastic": "بلاستيك",
  "render.category_wood": "خشب",
-  "render.caustics_area_lights": "تأثيرات الضوء المركّز من الأضواء المساحية",
  "render.caustics_depth": "عمق مسار تجمّع الضوء",
  "render.caustics_enable": "تجمّع الضوء عبر الزجاج من مصادر نقطية واتجاهية",
-  "render.caustics_environment": "تأثيرات الضوء المركّز من البيئة",
  "render.caustics_help": "يتحكم عدد الفوتونات في الضجيج وكلفة الحساب. يوازن نصف قطر التجميع بين التفاصيل الدقيقة والتقدير الأنعم. يتطلب CPU إضاءة غير مباشرة.",
  "render.caustics_path_required": "يتطلب تجمّع الضوء على CPU إضاءة غير مباشرة.",
  "render.caustics_photons": "عدد الفوتونات",
@@ -3404,7 +3398,7 @@
  "render.cpu_opaque_required": "يتطلب تتبع الأشعة على CPU خلفية معتمة. ألغِ تحديد «خلفية شفافة» للمتابعة.",
  "render.cpu_options_pending": "لا تستطيع لوحة CPU هذه تحرير الانبعاث ولا تأثيرات السطح ولا الزجاج ولا تباين الخواص بعد. امسح خيارات API هذه قبل استخدامها.",
  "render.cpu_path_depth": "عمق المسار",
-  "render.cpu_path_help": "تضيف الضوء المرتد بين الأسطح المعتمة والمار عبر أشكال الزجاج المدعومة. تتطلب التصيير التدريجي وظلال تتبع الأشعة. يحسب عمق المسار الأسطح المضاءة وحدود الزجاج وأحداث التشتت بدءًا من أول تقاطع (1–64). يقتصر العمق 1 على الإضاءة المباشرة للأسطح المعتمة؛ وتسمح القيم الأعلى بمزيد من الارتدادات أو عبور الزجاج وقد تستغرق وقتًا أطول. أوقف الإضاءة غير المباشرة لاستخدام الانعكاسات المخصصة أو التباين الاتجاهي.",
+  "render.cpu_path_help": "تضيف الضوء المرتد بين الأسطح المعتمة والمار عبر أشكال الزجاج المدعومة. تتطلب التصيير التدريجي وظلال تتبع الأشعة. يحسب عمق المسار الأسطح المضاءة وحدود الزجاج وأحداث التشتت بدءًا من أول تقاطع (1–16). يقتصر العمق 1 على الإضاءة المباشرة للأسطح المعتمة؛ وتسمح القيم الأعلى بمزيد من الارتدادات أو عبور الزجاج وقد تستغرق وقتًا أطول. أوقف الإضاءة غير المباشرة لاستخدام الانعكاسات المخصصة أو التباين الاتجاهي.",
  "render.cpu_path_lighting": "إضاءة غير مباشرة",
  "render.cpu_path_optics_reason": "تبقى إعداداتك كما هي. أوقف الإضاءة غير المباشرة لاستخدام الانعكاسات المخصصة أو التباين الاتجاهي.",
  "render.cpu_point": "ضوء نقطي",
@@ -3444,12 +3438,6 @@
  "render.cpu_subsurface_denoise_reason": "يتطلب التشتت داخل الزجاج على CPU إيقاف إزالة الضجيج. تبقى إعداداتك محفوظة.",
  "render.cpu_subsurface_help": "يغيّر التشتت اتجاه الضوء داخل الزجاج المغلق. تتطلب المعدلات الموجبة إضاءة غير مباشرة مع إيقاف إزالة الضجيج. المعدل هو عدد التصادمات لكل مم؛ لا يضيف الصفر أي تشتت. يفضّل انحياز الاتجاه الموجب الأمام، والسالب الخلف.",
  "render.cpu_summary": "تتبع الأشعة على CPU · انعكاسات · HDR · أضواء اتجاهية ونقطية",
-  "render.cpu_threads": "خيوط المعالجة",
-  "render.cpu_threads_auto": "تلقائي",
-  "render.cpu_threads_custom": "مخصص",
-  "render.cpu_threads_help": "يستخدم الوضع التلقائي خيوط المعالجة المتاحة. ينفّذ خيط واحد العمل تسلسليًا. قد تحتاج الخيوط الإضافية إلى ذاكرة أكبر.",
-  "render.cpu_threads_single": "واحد",
-  "render.cpu_threads_web": "يستخدم التصيير في المتصفح خيطًا تعاونيًا واحدًا. يُحفظ اختيار خيوط المعالجة الخاص بسطح المكتب.",
  "render.cpu_transparent_help": "يزيل PNG الشفاف الخلفية ويحافظ على تغطية الحواف. يجب أن تبقى عتامة الأجسام والأوجه عند 100%.",
  "render.cpu_volume_enable_path": "تفعيل الإضاءة غير المباشرة",
  "render.cpu_volume_enable_path_plan": "تتبع أشعة CPU · عمق المسار {depth} · {spp} عينة/بكسل · بذرة {seed} · ظلال متتبعة. يحتفظ بالغلاف الجوي وميزانية الصورة المحددين.",
@@ -3458,40 +3446,6 @@
  "render.cpu_volume_method_incompatible": "لا يمكن نقل إعدادات الإضاءة أو أخذ العينات أو الغلاف الجوي هذه إلى هذه الطريقة. تبقى إعداداتك محفوظة.",
  "render.cpu_volume_path_required": "فعّل الإضاءة غير المباشرة لاستخدام الغلاف الجوي على CPU.",
  "render.cpu_warm_cool": "دافئ وبارد",
-  "render.denoise_class_background": "متجاوز: خلفية",
-  "render.denoise_class_coverage": "متجاوز: تغطية جزئية",
-  "render.denoise_class_degenerate": "متجاوز: مسار متدهور",
-  "render.denoise_class_depth": "متجاوز: حد عمق المسار",
-  "render.denoise_class_emitter": "متجاوز: مصدر ضوء",
-  "render.denoise_class_exit": "متجاوز: خروج غير متوافق",
-  "render.denoise_class_identity": "متجاوز: حد هوية الدليل",
-  "render.denoise_class_lens": "متجاوز: عمق المجال",
-  "render.denoise_class_material": "متجاوز: مادة غير مدعومة",
-  "render.denoise_class_nested": "متجاوز: وسط متداخل",
-  "render.denoise_class_optical": "مؤهل: سطح عبر انكسار",
-  "render.denoise_class_reflection": "متجاوز: نهاية عاكسة",
-  "render.denoise_class_surface": "مؤهل: سطح",
-  "render.denoise_class_tir": "متجاوز: انعكاس داخلي كلي",
-  "render.denoise_class_transmission": "متجاوز: نفاذ إضافي",
-  "render.denoise_class_unavailable": "متجاوز: بلا دليل",
-  "render.denoise_class_volume": "متجاوز: تشتت حجمي",
-  "render.denoise_diagnostics_counts": "المؤهلة: {eligible} · المتجاوزة: {skipped}",
-  "render.denoise_diagnostics_enable": "جمع تشخيصات إزالة الضوضاء",
-  "render.denoise_diagnostics_grid": "أعداد البكسلات بالحجم الداخلي {width} × {height}.",
-  "render.denoise_diagnostics_help": "يجمع أعداد البكسلات المؤهلة والمتجاوزة حتى عند إيقاف إزالة الضوضاء. تعتمد الأعداد على حجم التصيير الداخلي، ويعتمد القناع على حجم الإخراج.",
-  "render.denoise_diagnostics_title": "تشخيصات إزالة الضوضاء",
-  "render.denoise_export_mask": "تصدير القناع بصيغة PNG",
-  "render.denoise_firefly": "تقليل البكسلات الساطعة المعزولة",
-  "render.denoise_format_mask": "قناع PNG",
-  "render.denoise_mask_copy_help": "صدّر قناع إزالة الضوضاء بصيغة PNG، أو عُد إلى الصورة المصيّرة لنسخها.",
-  "render.denoise_mask_unavailable": "فعّل تشخيصات إزالة الضوضاء وصيّر صورة لفحص قناعها.",
-  "render.denoise_optical_filter": "تصفية المرايا والزجاج",
-  "render.denoise_optical_filter_help": "تصفية الضوء المنعكس والنافذ المؤهّل. أوقف هذا الخيار لإزالة الضجيج من الأسطح المعتمة فقط.",
-  "render.denoise_passes": "مرات الترشيح",
-  "render.denoise_settings_help": "تُنعّم مرات الترشيح الإضافية مساحة أوسع. تحدد القوة مقدار الترشيح المطبّق في كل مرة. تبقى المسارات البصرية غير المدعومة دون ترشيح.",
-  "render.denoise_strength": "قوة إزالة الضوضاء",
-  "render.denoise_view_image": "الصورة المصيّرة",
-  "render.denoise_view_mask": "قناع إزالة الضوضاء",
  "render.diag_bodies": "الأجسام المرئية",
  "render.diag_job_details": "تفاصيل المهمة الملتقطة",
  "render.diag_last_check": "آخر فحص مسبق",
@@ -4046,8 +4000,6 @@
  "render.material_transient": "تجاوزات بصرية مؤقتة لعلامة تبويب المستند هذه. لا تُحفظ في التصميم ولا في إعداد التصيير ولا في مكتبة المواد.",
  "render.material_v_up": "اتجاه V للنسيج يشير للأعلى في الصورة",
  "render.material_weight": "وزن الطبقة (0–1)",
-  "render.metal_energy_compensation": "استعادة انعكاس المعادن الخشنة",
-  "render.metal_energy_compensation_help": "عوّض الضوء الذي تفقده الأسطح المعدنية الخشنة بين أوجهها المجهرية. يتطلب معالج CPU إضاءة غير مباشرة.",
  "render.method_cpu": "تتبع الأشعة على CPU",
  "render.method_gpu": "تتبع المسارات على GPU",
  "render.method_limit_raster": "التنقيط يستخدم معاينة الاستوديو المعتمة الثابتة. اختر طريقة تتبع أشعة صريحة لعناصر التحكم البصرية المدعومة.",
@@ -4176,8 +4128,6 @@
  "render.quality_denoise_on": "تقليل التشويش: مفعّل",
  "render.quality_draft": "مسودة",
  "render.quality_high": "عالية",
-  "render.quality_legacy_samples": "القيمة المحفوظة: {samples} عينة لكل بكسل. تقتصر الاختيارات الجديدة على {maximum} عينة لكل بكسل.",
-  "render.quality_preset_limit": "يتجاوز هذا الإعداد المسبق حد الاختيار البالغ 16384 عينة لكل بكسل. اختر عدد عينات لا يتجاوز 16384.",
  "render.quality_projection_help": "تغيّر هذه المراجعة الدقة وميزانية العينات وعمق المسار والبذرة وتقليل التشويش فقط. تُحفظ الإعدادات الأخرى؛ ولا تثبت الميزانية تقارب الصورة.",
  "render.quality_review": "مراجعة ميزانية العيّنات",
  "render.quality_summary": "{width} × {height} · {samples} عينة · العمق {depth} · البذرة {seed} · {denoise}",
@@ -4325,7 +4275,6 @@
  "render.show_shots_label": "إظهار شريط اللقطات",
  "render.size_4k": "4K",
  "render.size_4k_uhd": "4K UHD",
-  "render.size_8k_uhd": "8K UHD",
  "render.size_custom": "مخصص…",
  "render.size_full_hd": "Full HD",
  "render.size_hd": "HD",
@@ -4488,11 +4437,6 @@
  "render.subsurface_enable": "مسار عشوائي للتشتت الداخلي",
  "render.subsurface_help": "للعوازل المغلقة فقط. التشتت وامتصاص RGB معاملان منفصلان لكل mm. تتشتت المسارات داخل الهندسة الفعلية، ثم تنكسر أو تنعكس عند الحد. عطّل نفاذ الظل المستقيم وإزالة تشويش السطح والحجم الخارجي؛ واستخدم طبقة فرينل واحدة. ليس مظلل انتشار ولا شبكة كثافة ولا مادة مقيسة. الأوساط الكثيفة قد تحتاج مزيدًا من العيّنات وعمق المسار.",
  "render.subsurface_rate": "معدل اصطدامات التشتت",
-  "render.supersampling": "أخذ عينات فائقة",
-  "render.supersampling_dimensions": "يُصيَّر بحجم {width} × {height} ويُصغَّر إلى {output_width} × {output_height}. يستخدم أربعة أضعاف عدد البكسلات.",
-  "render.supersampling_help": "يُصيَّر المشهد بضعف العرض والارتفاع، ثم يُصغَّر في فضاء الإضاءة الخطي. يبقى حجم الإخراج دون تغيير.",
-  "render.supersampling_off": "إيقاف",
-  "render.supersampling_x2": "2×",
  "render.surface_import.author": "المؤلف",
  "render.surface_import.busy": "جارٍ استيراد الصورة…",
  "render.surface_import.complete": "اختر صورة وأدخل مؤلفها ومصدرها وترخيصها.",
@@ -4506,8 +4450,6 @@
  "render.surface_import.saved_cpu": "احفظ الخرائط لاستخدامها في التصيير على CPU.",
  "render.surface_import.source": "المصدر",
  "render.surface_import.title": "استيراد صورة",
-  "render.texture_filtering": "ترشيح تفاصيل الخامات",
-  "render.texture_filtering_help": "استخدم مستويات التفاصيل والترشيح المتباين لتقليل تعرّج الخامات عند التصغير. يزيد استهلاك الذاكرة؛ يبقى الوضع القديم معطّلاً.",
  "render.tone_aces_fitted": "ACES مُلاءَم",
  "render.tone_reinhard": "راينهارد",
  "render.transmission_scope": "يدعم زجاج GPU الأوساط المنفصلة المعتمدة. لا تتوفر الأوساط المتداخلة غير المقيدة ولا مقدّر نفاذ خالٍ من التشويش.",
@@ -1319,7 +1319,6 @@
  "cmd.timeline_stop": "Verlauf anhalten",
  "cmd.timeline_suppress": "Merkmal unterdrücken",
  "cmd.ui.assistant": "Assistenten ein-/ausblenden",
-  "cmd.ui.palette": "Befehle suchen",
  "cmd.view.navigator": "Eigener Ansichtsnavigator",
  "cmd.view.render_browser": "Render-Browser",
  "cmd.view.render_dock": "Render-Panel verschieben",
@@ -2222,7 +2221,6 @@
  "parts.dimension.width": "Breite",
  "parts.family.bearing": "Rillenkugellager (Hüllform)",
  "parts.family.button_head_cap_screw": "Linsenkopfschraube mit Innensechskant",
-  "parts.family.countersunk_socket_screw": "Senkschraube mit Innensechskant",
  "parts.family.dowel_pin": "Zylinderstift",
  "parts.family.hex_bolt": "Sechskantschraube",
  "parts.family.hex_cap_screw_inch": "Sechskantschraube (Zoll)",
@@ -2593,8 +2591,6 @@
  "prefs.remember_dialog_values.help": "Standardmäßig aus. Wenn aktiviert, werden nach erfolgreicher Ausführung eines Befehls seine sicheren Werte und Optionen beim nächsten Öffnen desselben Befehls wiederverwendet, bis SolidCraft geschlossen wird.",
  "prefs.render_legacy_image_defaults": "Bisherige Render-Bildvorgaben verwenden",
  "prefs.render_legacy_image_defaults_help": "Den bisherigen manuellen Ablauf beibehalten: neue Setups mit CPU-Raster, feste Abtastung beim CPU-Raytracing und manuell geöffnete Ergebnisse. Beim Wechsel zu Render die Ansicht neu einpassen, Aufnahmen ohne Wiederherstellung ihrer Kamera wechseln und die bisherige Bildausrichtung und Navigation verwenden. Automatische Live-Bildrückmeldungen deaktivieren. Gespeicherte Setups bleiben unverändert.",
-  "prefs.render_legacy_memory_admission": "Bisherige Render-Speicherprüfung verwenden",
-  "prefs.render_legacy_memory_admission_help": "Native Renderaufträge innerhalb der festen gemeinsamen und hostspezifischen Speichergrenzen zulassen, auch wenn der geschätzte Bedarf den verfügbaren RAM übersteigt. Gerätegrenzen und Prüfungen der Speicherzuweisung gelten weiterhin.",
  "prefs.render_previous_geometry_budget": "Bisheriges Geometriebudget für die Render-Vorschau verwenden",
  "prefs.render_previous_geometry_budget_help": "Stellt die bisherige feste Obergrenze für die Geometrie wieder her (512 MiB auf 64-Bit-Desktop-Systemen, andernfalls 128 MiB) anstelle des geräteabhängigen Budgets.",
  "prefs.reports_saved": "{n} gespeichert",
@@ -2978,10 +2974,8 @@
  "render.category_paint": "Lack",
  "render.category_plastic": "Kunststoff",
  "render.category_wood": "Holz",
-  "render.caustics_area_lights": "Kaustiken von Flächenlichtern",
  "render.caustics_depth": "Kaustik-Pfadtiefe",
  "render.caustics_enable": "Glaskaustiken durch Punkt- und Richtungslichter",
-  "render.caustics_environment": "Kaustiken aus der Umgebung",
  "render.caustics_help": "Die Photonenzahl bestimmt Rauschen und Aufwand. Der Sammelradius tauscht scharfe Details gegen eine glattere Schätzung. CPU benötigt indirekte Beleuchtung.",
  "render.caustics_path_required": "CPU-Kaustiken benötigen indirekte Beleuchtung.",
  "render.caustics_photons": "Photonen",
@@ -3158,7 +3152,7 @@
  "render.cpu_opaque_required": "CPU-Raytracing benötigt einen undurchsichtigen Hintergrund. Entfernen Sie das Häkchen bei „Transparenter Hintergrund“, um fortzufahren.",
  "render.cpu_options_pending": "Dieses CPU-Bedienfeld kann Emission, Oberflächeneffekte, Glas oder Anisotropie noch nicht bearbeiten. Entfernen Sie diese API-Optionen, bevor Sie es verwenden.",
  "render.cpu_path_depth": "Pfadtiefe",
-  "render.cpu_path_help": "Berechnet Licht, das zwischen undurchsichtigen Flächen und durch unterstützte Glasformen läuft. Erfordert progressives Rendern und Raytracing-Schatten. Die Pfadtiefe zählt beleuchtete Flächen, Glasgrenzen und Streuereignisse ab dem ersten Treffer (1–64). Tiefe 1 liefert direkte Beleuchtung auf undurchsichtigen Flächen; höhere Werte erlauben mehr Reflexionen oder Glasdurchgänge und können länger dauern. Für eigene Reflexionen oder Anisotropie die indirekte Beleuchtung ausschalten.",
+  "render.cpu_path_help": "Berechnet Licht, das zwischen undurchsichtigen Flächen und durch unterstützte Glasformen läuft. Erfordert progressives Rendern und Raytracing-Schatten. Die Pfadtiefe zählt beleuchtete Flächen, Glasgrenzen und Streuereignisse ab dem ersten Treffer (1–16). Tiefe 1 liefert direkte Beleuchtung auf undurchsichtigen Flächen; höhere Werte erlauben mehr Reflexionen oder Glasdurchgänge und können länger dauern. Für eigene Reflexionen oder Anisotropie die indirekte Beleuchtung ausschalten.",
  "render.cpu_path_lighting": "Indirekte Beleuchtung",
  "render.cpu_path_optics_reason": "Die Einstellungen bleiben erhalten. Für eigene Reflexionen oder Anisotropie die indirekte Beleuchtung ausschalten.",
  "render.cpu_point": "Punktlicht",
@@ -3198,12 +3192,6 @@
  "render.cpu_subsurface_denoise_reason": "Streuung im Glas auf der CPU benötigt ausgeschaltete Rauschreduzierung. Die Einstellungen bleiben erhalten.",
  "render.cpu_subsurface_help": "Streuung lenkt Licht im Inneren geschlossenen Glases um. Positive Raten benötigen indirekte Beleuchtung ohne Rauschreduzierung. Die Rate zählt Kollisionen pro mm; 0 fügt keine Streuung hinzu. Positive Richtungswerte bevorzugen vorwärts, negative rückwärts.",
  "render.cpu_summary": "CPU-Raytracing · Reflexionen · HDR · Richtungs- und Punktlichter",
-  "render.cpu_threads": "CPU-Threads",
-  "render.cpu_threads_auto": "Auto",
-  "render.cpu_threads_custom": "Eigene",
-  "render.cpu_threads_help": "Auto verwendet die verfügbaren CPU-Threads. Ein Thread arbeitet seriell. Mehr Threads können mehr Speicher benötigen.",
-  "render.cpu_threads_single": "Einzeln",
-  "render.cpu_threads_web": "Im Browser wird ein kooperativer Thread verwendet. Die gespeicherte Desktop-Auswahl bleibt erhalten.",
  "render.cpu_transparent_help": "Transparentes PNG entfernt den Hintergrund und erhält die Kantenabdeckung. Körper- und Flächendeckkraft müssen 100 % bleiben.",
  "render.cpu_volume_enable_path": "Indirekte Beleuchtung einschalten",
  "render.cpu_volume_enable_path_plan": "CPU-Raytracing · Pfadtiefe {depth} · {spp} Samples/Pixel · Seed {seed} · Raytracing-Schatten. Atmosphäre und Bildbudget bleiben erhalten.",
@@ -3212,40 +3200,6 @@
  "render.cpu_volume_method_incompatible": "Diese Licht-, Sampling- oder Atmosphäreinstellungen lassen sich nicht auf diese Methode übertragen. Die Einstellungen bleiben erhalten.",
  "render.cpu_volume_path_required": "Indirekte Beleuchtung einschalten, um CPU-Atmosphäre zu nutzen.",
  "render.cpu_warm_cool": "Warm und kühl",
-  "render.denoise_class_background": "Übersprungen: Hintergrund",
-  "render.denoise_class_coverage": "Übersprungen: teilweise Abdeckung",
-  "render.denoise_class_degenerate": "Übersprungen: entarteter Pfad",
-  "render.denoise_class_depth": "Übersprungen: Pfadtiefengrenze",
-  "render.denoise_class_emitter": "Übersprungen: Lichtquelle",
-  "render.denoise_class_exit": "Übersprungen: unpassender Austritt",
-  "render.denoise_class_identity": "Übersprungen: Grenze der Führungskennungen",
-  "render.denoise_class_lens": "Übersprungen: Schärfentiefe",
-  "render.denoise_class_material": "Übersprungen: nicht unterstütztes Material",
-  "render.denoise_class_nested": "Übersprungen: verschachteltes Medium",
-  "render.denoise_class_optical": "Geeignet: Oberfläche durch Brechung",
-  "render.denoise_class_reflection": "Übersprungen: reflektierender Endpunkt",
-  "render.denoise_class_surface": "Geeignet: Oberfläche",
-  "render.denoise_class_tir": "Übersprungen: Totalreflexion",
-  "render.denoise_class_transmission": "Übersprungen: weitere Transmission",
-  "render.denoise_class_unavailable": "Übersprungen: keine Führungsdaten",
-  "render.denoise_class_volume": "Übersprungen: Volumenstreuung",
-  "render.denoise_diagnostics_counts": "Geeignet: {eligible} · Übersprungen: {skipped}",
-  "render.denoise_diagnostics_enable": "Entrauschungsdiagnose erfassen",
-  "render.denoise_diagnostics_grid": "Pixelzahlen bei interner Größe {width} × {height}.",
-  "render.denoise_diagnostics_help": "Erfasst geeignete und übersprungene Pixel auch ohne Entrauschung. Die Zählung nutzt die interne Rendergröße, die Maske die Ausgabegröße.",
-  "render.denoise_diagnostics_title": "Entrauschungsdiagnose",
-  "render.denoise_export_mask": "Maske als PNG exportieren",
-  "render.denoise_firefly": "Einzelne helle Pixel unterdrücken",
-  "render.denoise_format_mask": "Maske PNG",
-  "render.denoise_mask_copy_help": "Exportieren Sie die Entrauschungsmaske als PNG oder kehren Sie zum gerenderten Bild zurück, um es zu kopieren.",
-  "render.denoise_mask_unavailable": "Aktivieren Sie die Entrauschungsdiagnose und rendern Sie ein Bild, um seine Maske zu prüfen.",
-  "render.denoise_optical_filter": "Spiegel und Glas filtern",
-  "render.denoise_optical_filter_help": "Geeignetes reflektiertes und durchgelassenes Licht filtern. Ausschalten, um nur undurchsichtige Oberflächen zu entrauschen.",
-  "render.denoise_passes": "Filterdurchläufe",
-  "render.denoise_settings_help": "Mehr Durchläufe glätten einen größeren Bereich. Die Stärke regelt die Filterwirkung jedes Durchlaufs. Nicht unterstützte Lichtwege bleiben ungefiltert.",
-  "render.denoise_strength": "Entrauschungsstärke",
-  "render.denoise_view_image": "Gerendertes Bild",
-  "render.denoise_view_mask": "Entrauschungsmaske",
  "render.diag_bodies": "Sichtbare Körper",
  "render.diag_job_details": "Erfasste Auftragsdetails",
  "render.diag_last_check": "Letzte Vorabprüfung",
@@ -3800,8 +3754,6 @@
  "render.material_transient": "Vorübergehende optische Überschreibungen für diesen Dokument-Tab. Sie werden weder im Design noch im Render-Setup oder in der Materialbibliothek gespeichert.",
  "render.material_v_up": "Textur-V zeigt im Bild nach oben",
  "render.material_weight": "Klarlack-Gewicht (0–1)",
-  "render.metal_energy_compensation": "Reflexion rauer Metalle wiederherstellen",
-  "render.metal_energy_compensation_help": "Gleicht den Lichtverlust zwischen den Mikrofacetten rauer Metalle aus. Die CPU benötigt indirekte Beleuchtung.",
  "render.method_cpu": "CPU-Raytracing",
  "render.method_gpu": "GPU-Pathtracing",
  "render.method_limit_raster": "Die Rasterung verwendet die feste undurchsichtige Studiovorschau. Wählen Sie ausdrücklich eine Raytracing-Methode für die unterstützten optischen Einstellungen.",
@@ -3930,8 +3882,6 @@
  "render.quality_denoise_on": "Rauschreduzierung: Ein",
  "render.quality_draft": "Entwurf",
  "render.quality_high": "Hoch",
-  "render.quality_legacy_samples": "Gespeicherter Wert: {samples} spp. Neue Werte sind auf {maximum} spp begrenzt.",
-  "render.quality_preset_limit": "Diese Vorgabe überschreitet die Auswahlgrenze von 16384 spp. Wählen Sie höchstens 16384 Samples.",
  "render.quality_projection_help": "Diese Prüfung ändert nur Auflösung, Abtastbudget, Pfadtiefe, Startwert und Rauschreduzierung. Andere Einstellungen bleiben erhalten; das Budget garantiert keine Konvergenz.",
  "render.quality_review": "Sampling-Budget prüfen",
  "render.quality_summary": "{width} × {height} · {samples} Samples · Tiefe {depth} · Startwert {seed} · {denoise}",
@@ -4079,7 +4029,6 @@
  "render.show_shots_label": "Aufnahmenleiste einblenden",
  "render.size_4k": "4K",
  "render.size_4k_uhd": "4K UHD",
-  "render.size_8k_uhd": "8K UHD",
  "render.size_custom": "Benutzerdefiniert…",
  "render.size_full_hd": "Full HD",
  "render.size_hd": "HD",
@@ -4242,11 +4191,6 @@
  "render.subsurface_enable": "Random Walk für innere Streuung",
  "render.subsurface_help": "Nur für geschlossene Dielektrika. Streuung und RGB-Absorption sind getrennte Koeffizienten pro mm. Pfade streuen innerhalb der tatsächlichen Geometrie und werden dann an der Grenzfläche gebrochen oder reflektiert. Deaktivieren Sie die Transmission gerader Schattenstrahlen, das Entrauschen von Oberflächen und das äußere Volumen; verwenden Sie eine Fresnel-Schicht. Kein Diffusions-Shader, kein Dichtegitter und kein gemessenes Material. Dichte Medien können mehr Samples und Pfadtiefe benötigen.",
  "render.subsurface_rate": "Streukollisionsrate",
-  "render.supersampling": "Supersampling",
-  "render.supersampling_dimensions": "Rendert {width} × {height} und verkleinert auf {output_width} × {output_height}. Verwendet die vierfache Pixelzahl.",
-  "render.supersampling_help": "Mit doppelter Breite und Höhe rendern und anschließend im linearen Farbraum verkleinern. Die Ausgabegröße bleibt unverändert.",
-  "render.supersampling_off": "Aus",
-  "render.supersampling_x2": "2×",
  "render.surface_import.author": "Autor",
  "render.surface_import.busy": "Bild wird importiert…",
  "render.surface_import.complete": "Wählen Sie ein Bild und geben Sie Autor, Quelle und Lizenz an.",
@@ -4260,8 +4204,6 @@
  "render.surface_import.saved_cpu": "Speichern Sie Texturen für das CPU-Rendering.",
  "render.surface_import.source": "Quelle",
  "render.surface_import.title": "Bild importieren",
-  "render.texture_filtering": "Texturdetails filtern",
-  "render.texture_filtering_help": "Mip-Stufen und anisotrope Filterung verringern Flimmern verkleinerter Texturen. Benötigt zusätzlichen Speicher; ausgeschaltet bleibt die bisherige Filterung.",
  "render.tone_aces_fitted": "ACES angepasst",
  "render.tone_reinhard": "Reinhard",
  "render.transmission_scope": "GPU-Glas unterstützt zertifizierte getrennte Medien. Unbeschränkt verschachtelte Medien und ein rauschfreier Transmissionsschätzer werden nicht bereitgestellt.",
@@ -1509,7 +1509,6 @@
  "cmd.timeline_stop": "Stop History",
  "cmd.timeline_suppress": "Suppress Feature",
  "cmd.ui.assistant": "Toggle Assistant",
-  "cmd.ui.palette": "Search Commands",
  "cmd.view.navigator": "Custom View Navigator",
  "cmd.view.render_browser": "Render Browser",
  "cmd.view.render_dock": "Move Render Dock",
@@ -2432,7 +2431,6 @@
  "parts.dimension.width": "Width",
  "parts.family.bearing": "Deep groove ball bearing (envelope)",
  "parts.family.button_head_cap_screw": "Button head cap screw",
-  "parts.family.countersunk_socket_screw": "Countersunk socket screw",
  "parts.family.dowel_pin": "Parallel pin (dowel)",
  "parts.family.hex_bolt": "Hex head bolt / screw",
  "parts.family.hex_cap_screw_inch": "Hex cap screw (inch)",
@@ -2828,8 +2826,6 @@
  "prefs.remember_dialog_values.help": "Off by default. When on, after a command succeeds, its safe values and options are reused the next time you open the same command, until SolidCraft closes.",
  "prefs.render_legacy_image_defaults": "Use previous Render image defaults",
  "prefs.render_legacy_image_defaults_help": "Keep the previous manual workflow: new setups use CPU raster, CPU ray tracing keeps fixed sampling, and you open rendered results manually. Refit on Render entry, switch shots without restoring their cameras, and use the previous framing and navigation. Disable automatic live image feedback. Saved setups are unchanged.",
-  "prefs.render_legacy_memory_admission": "Use previous render memory checks",
-  "prefs.render_legacy_memory_admission_help": "Allow native renders within the fixed shared and host memory budgets even when their estimate exceeds available RAM. Device limits and allocation checks still apply.",
  "prefs.render_previous_geometry_budget": "Use previous Render preview geometry budget",
  "prefs.render_previous_geometry_budget_help": "Restore the previous fixed geometry limit (512 MiB on 64-bit desktop, 128 MiB elsewhere) instead of the device-based budget.",
  "prefs.reports_saved": "{n} saved",
@@ -3224,10 +3220,8 @@
  "render.category_paint": "Paint",
  "render.category_plastic": "Plastic",
  "render.category_wood": "Wood",
-  "render.caustics_area_lights": "Area light caustics",
  "render.caustics_depth": "Caustic path depth",
  "render.caustics_enable": "Glass caustics from point and directional lights",
-  "render.caustics_environment": "Environment caustics",
  "render.caustics_help": "Photon count controls noise and work. Gather radius trades sharp detail for a smoother estimate. CPU requires Indirect lighting.",
  "render.caustics_path_required": "CPU caustics require Indirect lighting.",
  "render.caustics_photons": "Photons",
@@ -3404,7 +3398,7 @@
  "render.cpu_opaque_required": "CPU ray tracing needs an opaque background. Clear Transparent background to continue.",
  "render.cpu_options_pending": "This CPU panel cannot edit emission, surface effects, glass or anisotropy yet. Clear those API options before using it.",
  "render.cpu_path_depth": "Path depth",
-  "render.cpu_path_help": "Adds light bouncing between opaque surfaces and through supported Glass shapes. Requires progressive rendering and traced shadows. Path depth counts shaded surfaces, Glass boundaries and scattering events, starting with the first hit (1–64). Depth 1 gives direct lighting on opaque surfaces; higher values allow more bounces or Glass crossings and may take longer. Turn off Indirect lighting to use custom reflections or anisotropy.",
+  "render.cpu_path_help": "Adds light bouncing between opaque surfaces and through supported Glass shapes. Requires progressive rendering and traced shadows. Path depth counts shaded surfaces, Glass boundaries and scattering events, starting with the first hit (1–16). Depth 1 gives direct lighting on opaque surfaces; higher values allow more bounces or Glass crossings and may take longer. Turn off Indirect lighting to use custom reflections or anisotropy.",
  "render.cpu_path_lighting": "Indirect lighting",
  "render.cpu_path_optics_reason": "Your settings are kept. Turn off Indirect lighting to use custom reflections or anisotropy.",
  "render.cpu_point": "Point light",
@@ -3444,12 +3438,6 @@
  "render.cpu_subsurface_denoise_reason": "CPU subsurface scattering needs Denoise off. Your settings are kept.",
  "render.cpu_subsurface_help": "Scattering redirects light inside closed Glass. Positive rates need Indirect lighting with Denoise off. The rate is collisions per mm; 0 adds no scattering. Positive phase bias favors forward directions; negative favors backward.",
  "render.cpu_summary": "CPU ray tracing · reflections · HDR · directional and point lights",
-  "render.cpu_threads": "CPU workers",
-  "render.cpu_threads_auto": "Auto",
-  "render.cpu_threads_custom": "Custom",
-  "render.cpu_threads_help": "Auto uses available CPU workers. One worker runs serially. More workers can need more memory.",
-  "render.cpu_threads_single": "Single",
-  "render.cpu_threads_web": "Browser rendering uses one cooperative worker. The saved desktop worker choice is preserved.",
  "render.cpu_transparent_help": "Transparent PNG removes the background and keeps edge coverage. Body and face opacity must stay at 100%.",
  "render.cpu_volume_enable_path": "Enable Indirect lighting",
  "render.cpu_volume_enable_path_plan": "CPU ray tracing · path depth {depth} · {spp} samples/pixel · seed {seed} · traced shadows. Keeps the authored atmosphere and image budget.",
@@ -3458,40 +3446,6 @@
  "render.cpu_volume_method_incompatible": "These light, sampling or atmosphere settings cannot be transferred to this method. Your settings are kept.",
  "render.cpu_volume_path_required": "Enable Indirect lighting to use CPU Atmosphere.",
  "render.cpu_warm_cool": "Warm and cool",
-  "render.denoise_class_background": "Skipped: background",
-  "render.denoise_class_coverage": "Skipped: partial coverage",
-  "render.denoise_class_degenerate": "Skipped: degenerate path",
-  "render.denoise_class_depth": "Skipped: path depth limit",
-  "render.denoise_class_emitter": "Skipped: light emitter",
-  "render.denoise_class_exit": "Skipped: incompatible exit",
-  "render.denoise_class_identity": "Skipped: guide identity limit",
-  "render.denoise_class_lens": "Skipped: depth of field",
-  "render.denoise_class_material": "Skipped: unsupported material",
-  "render.denoise_class_nested": "Skipped: nested medium",
-  "render.denoise_class_optical": "Eligible: refracted surface",
-  "render.denoise_class_reflection": "Skipped: reflective endpoint",
-  "render.denoise_class_surface": "Eligible: surface",
-  "render.denoise_class_tir": "Skipped: total internal reflection",
-  "render.denoise_class_transmission": "Skipped: further transmission",
-  "render.denoise_class_unavailable": "Skipped: no guide",
-  "render.denoise_class_volume": "Skipped: volume scattering",
-  "render.denoise_diagnostics_counts": "Eligible: {eligible} · Skipped: {skipped}",
-  "render.denoise_diagnostics_enable": "Collect denoising diagnostics",
-  "render.denoise_diagnostics_grid": "Pixel counts at internal size {width} × {height}.",
-  "render.denoise_diagnostics_help": "Collects eligible and skipped pixel counts even when denoising is off. Counts use the internal render size; the mask uses the output size.",
-  "render.denoise_diagnostics_title": "Denoising diagnostics",
-  "render.denoise_export_mask": "Export mask PNG",
-  "render.denoise_firefly": "Suppress isolated bright pixels",
-  "render.denoise_format_mask": "Mask PNG",
-  "render.denoise_mask_copy_help": "Export the denoising mask as PNG, or return to the rendered image to copy it.",
-  "render.denoise_mask_unavailable": "Enable denoising diagnostics and render an image to inspect its mask.",
-  "render.denoise_optical_filter": "Filter mirror and glass",
-  "render.denoise_optical_filter_help": "Filter eligible reflected and transmitted light. Turn off to denoise opaque surfaces only.",
-  "render.denoise_passes": "Filter passes",
-  "render.denoise_settings_help": "More passes smooth a wider area. Strength controls how much filtering each pass applies. Unsupported optical paths remain unfiltered.",
-  "render.denoise_strength": "Denoising strength",
-  "render.denoise_view_image": "Rendered image",
-  "render.denoise_view_mask": "Denoising mask",
  "render.diag_bodies": "Visible bodies",
  "render.diag_job_details": "Captured job details",
  "render.diag_last_check": "Last preflight",
@@ -4046,8 +4000,6 @@
  "render.material_transient": "Temporary optical overrides for this document tab. They are not saved in the design, render setup or material library.",
  "render.material_v_up": "Texture V points upward in the image",
  "render.material_weight": "Coat weight (0–1)",
-  "render.metal_energy_compensation": "Recover rough metal reflectance",
-  "render.metal_energy_compensation_help": "Compensate for light lost between rough metal microfacets. CPU rendering needs Indirect lighting.",
  "render.method_cpu": "CPU ray tracing",
  "render.method_gpu": "GPU path tracing",
  "render.method_limit_raster": "Raster uses the fixed opaque studio preview. Select an explicit raytracing method for supported optical controls.",
@@ -4176,8 +4128,6 @@
  "render.quality_denoise_on": "Noise reduction: On",
  "render.quality_draft": "Draft",
  "render.quality_high": "High",
-  "render.quality_legacy_samples": "Saved value: {samples} spp. New selections are limited to {maximum} spp.",
-  "render.quality_preset_limit": "This preset exceeds the 16384 spp selection limit. Choose a sample count up to 16384.",
  "render.quality_projection_help": "This review changes only resolution, sample budget, path depth, seed and noise reduction. Other settings are kept; the budget does not certify convergence.",
  "render.quality_review": "Review sampling budget",
  "render.quality_summary": "{width} × {height} · {samples} samples · depth {depth} · seed {seed} · {denoise}",
@@ -4325,7 +4275,6 @@
  "render.show_shots_label": "Show Shots strip",
  "render.size_4k": "4K",
  "render.size_4k_uhd": "4K UHD",
-  "render.size_8k_uhd": "8K UHD",
  "render.size_custom": "Custom…",
  "render.size_full_hd": "Full HD",
  "render.size_hd": "HD",
@@ -4488,11 +4437,6 @@
  "render.subsurface_enable": "Interior scattering random walk",
  "render.subsurface_help": "Closed dielectric only. Scattering and RGB absorption are separate per-mm coefficients. Paths scatter inside actual geometry, then refract or reflect at the boundary. Disable straight shadow transmission, surface denoising and exterior volume; use one Fresnel stratum. Not a diffusion shader, density grid or measured material. Dense media may need more samples and path depth.",
  "render.subsurface_rate": "Scattering collision rate",
-  "render.supersampling": "Supersampling",
-  "render.supersampling_dimensions": "Renders {width} × {height} and reduces to {output_width} × {output_height}. Uses four times the pixels.",
-  "render.supersampling_help": "Render at twice the width and height, then reduce in linear light. The output size stays unchanged.",
-  "render.supersampling_off": "Off",
-  "render.supersampling_x2": "2×",
  "render.surface_import.author": "Author",
  "render.surface_import.busy": "Importing image…",
  "render.surface_import.complete": "Choose an image and enter its author, source and license.",
@@ -4506,8 +4450,6 @@
  "render.surface_import.saved_cpu": "Save maps to use them with CPU rendering.",
  "render.surface_import.source": "Source",
  "render.surface_import.title": "Import image",
-  "render.texture_filtering": "Filter texture detail",
-  "render.texture_filtering_help": "Use mip levels and anisotropic filtering to reduce texture aliasing under minification. Uses more memory; off retains the previous filtering.",
  "render.tone_aces_fitted": "ACES fitted",
  "render.tone_reinhard": "Reinhard",
  "render.transmission_scope": "GPU glass supports certified disjoint media. Unrestricted nested media and a noise-free transmission estimator are not provided.",
@@ -1509,7 +1509,6 @@
  "cmd.timeline_stop": "עצירת ציר הזמן",
  "cmd.timeline_suppress": "השבתת פיצ'ר",
  "cmd.ui.assistant": "הצגה או הסתרה של העוזר",
-  "cmd.ui.palette": "חיפוש פקודות",
  "cmd.view.navigator": "ניווט תצוגה מותאם אישית",
  "cmd.view.render_browser": "דפדפן רינדור",
  "cmd.view.render_dock": "הזז את עגינת הרינדור",
@@ -2432,7 +2431,6 @@
  "parts.dimension.width": "רוחב",
  "parts.family.bearing": "מסב כדורי חריץ עמוק (מעטפת)",
  "parts.family.button_head_cap_screw": "בורג ראש כפתור עם שקע משושה",
-  "parts.family.countersunk_socket_screw": "בורג ראש שקוע עם שקע משושה",
  "parts.family.dowel_pin": "פין גלילי",
  "parts.family.hex_bolt": "בורג ראש משושה",
  "parts.family.hex_cap_screw_inch": "בורג ראש משושה (אינץ')",
@@ -2828,8 +2826,6 @@
  "prefs.remember_dialog_values.help": "כבוי כברירת מחדל. כשהוא פועל, לאחר הצלחת פקודה, הערכים והאפשרויות הבטוחים שלה ישמשו שוב בפעם הבאה שתפתח את אותה פקודה, עד לסגירת SolidCraft.",
  "prefs.render_legacy_image_defaults": "שימוש בברירות המחדל הקודמות לתמונות הדמיה",
  "prefs.render_legacy_image_defaults_help": "שמירה על תהליך העבודה הידני הקודם: הגדרות חדשות ברסטר CPU, דגימה קבועה בעקיבת קרניים ב־CPU ופתיחת התוצאות ידנית. התאמת התצוגה מחדש בכניסה להדמיה, מעבר בין צילומים בלי לשחזר את המצלמות שלהם ושימוש במסגור ובניווט הקודמים. עדכון אוטומטי של התמונה החיה מושבת. הגדרות שמורות אינן משתנות.",
-  "prefs.render_legacy_memory_admission": "שימוש בבדיקות הזיכרון הקודמות לרינדור",
-  "prefs.render_legacy_memory_admission_help": "מאפשר רינדור מקומי במסגרת מגבלות הזיכרון הקבועות המשותפות ושל המארח, גם כשההערכה חורגת מהזיכרון הזמין. מגבלות המכשיר ובדיקות הקצאת הזיכרון עדיין חלות.",
  "prefs.render_previous_geometry_budget": "שימוש בתקציב הגאומטריה הקודם לתצוגה מקדימה של רינדור",
  "prefs.render_previous_geometry_budget_help": "שחזור מגבלת הגאומטריה הקבועה הקודמת (512 MiB במחשב שולחני של 64 סיביות, 128 MiB בפלטפורמות אחרות) במקום התקציב המבוסס על ההתקן.",
  "prefs.reports_saved": "{n} שמורים",
@@ -3224,10 +3220,8 @@
  "render.category_paint": "צבע",
  "render.category_plastic": "פלסטיק",
  "render.category_wood": "עץ",
-  "render.caustics_area_lights": "קאוסטיקה מתאורת שטח",
  "render.caustics_depth": "עומק מסלול ריכוז האור",
  "render.caustics_enable": "ריכוז אור דרך זכוכית ממקורות נקודתיים וכיווניים",
-  "render.caustics_environment": "קאוסטיקה מתאורת הסביבה",
  "render.caustics_help": "מספר הפוטונים שולט ברעש ובעומס החישוב. רדיוס האיסוף מאזן בין פרטים חדים לאומדן חלק יותר. CPU דורש תאורה עקיפה.",
  "render.caustics_path_required": "ריכוז אור ב-CPU דורש תאורה עקיפה.",
  "render.caustics_photons": "מספר פוטונים",
@@ -3404,7 +3398,7 @@
  "render.cpu_opaque_required": "מעקב קרניים ב־CPU דורש רקע אטום. יש לבטל את „רקע שקוף” כדי להמשיך.",
  "render.cpu_options_pending": "לוח CPU זה עדיין אינו יכול לערוך פליטה, אפקטי משטח, זכוכית או אנאיזוטרופיה. יש לנקות את אפשרויות ה־API האלה לפני השימוש בו.",
  "render.cpu_path_depth": "עומק מסלול",
-  "render.cpu_path_help": "מחשבת אור שמוחזר בין משטחים אטומים ועובר דרך צורות זכוכית נתמכות. נדרשים רינדור הדרגתי וצללים במעקב קרניים. עומק המסלול סופר משטחים מוצללים, גבולות זכוכית ואירועי פיזור החל מהמפגש הראשון (1–64). עומק 1 נותן תאורה ישירה למשטחים אטומים; ערכים גבוהים מאפשרים יותר החזרות או מעברים בזכוכית ועשויים לדרוש יותר זמן. יש לכבות תאורה עקיפה כדי להשתמש בהשתקפויות מותאמות או באנאיזוטרופיה.",
+  "render.cpu_path_help": "מחשבת אור שמוחזר בין משטחים אטומים ועובר דרך צורות זכוכית נתמכות. נדרשים רינדור הדרגתי וצללים במעקב קרניים. עומק המסלול סופר משטחים מוצללים, גבולות זכוכית ואירועי פיזור החל מהמפגש הראשון (1–16). עומק 1 נותן תאורה ישירה למשטחים אטומים; ערכים גבוהים מאפשרים יותר החזרות או מעברים בזכוכית ועשויים לדרוש יותר זמן. יש לכבות תאורה עקיפה כדי להשתמש בהשתקפויות מותאמות או באנאיזוטרופיה.",
  "render.cpu_path_lighting": "תאורה עקיפה",
  "render.cpu_path_optics_reason": "ההגדרות שלך נשמרות. יש לכבות תאורה עקיפה כדי להשתמש בהשתקפויות מותאמות או באנאיזוטרופיה.",
  "render.cpu_point": "אור נקודתי",
@@ -3444,12 +3438,6 @@
  "render.cpu_subsurface_denoise_reason": "פיזור בתוך זכוכית ב־CPU דורש הסרת רעש כבויה. ההגדרות נשמרות.",
  "render.cpu_subsurface_help": "פיזור משנה את כיוון האור בתוך זכוכית סגורה. קצב חיובי דורש תאורה עקיפה והסרת רעש כבויה. הקצב הוא מספר התנגשויות למ״מ; 0 אינו מוסיף פיזור. הטיית כיוון חיובית מעדיפה קדימה, ושלילית אחורה.",
  "render.cpu_summary": "מעקב קרניים ב־CPU · החזרות · HDR · אורות כיווניים ונקודתיים",
-  "render.cpu_threads": "תהליכוני CPU",
-  "render.cpu_threads_auto": "אוטומטי",
-  "render.cpu_threads_custom": "מותאם",
-  "render.cpu_threads_help": "המצב האוטומטי משתמש בתהליכוני ה־CPU הזמינים. תהליכון יחיד פועל באופן סדרתי. תהליכונים נוספים עשויים לדרוש יותר זיכרון.",
-  "render.cpu_threads_single": "יחיד",
-  "render.cpu_threads_web": "רינדור בדפדפן משתמש בתהליכון שיתופי אחד. בחירת התהליכונים השמורה למחשב נשמרת.",
  "render.cpu_transparent_help": "PNG שקוף מסיר את הרקע ושומר על כיסוי הקצוות. אטימות הגופים והפאות חייבת להישאר 100%.",
  "render.cpu_volume_enable_path": "הפעלת תאורה עקיפה",
  "render.cpu_volume_enable_path_plan": "מעקב קרניים ב־CPU · עומק מסלול {depth} · {spp} דגימות לפיקסל · זרע {seed} · צללים במעקב קרניים. האטמוספרה ותקציב התמונה שנקבעו נשמרים.",
@@ -3458,40 +3446,6 @@
  "render.cpu_volume_method_incompatible": "לא ניתן להעביר הגדרות תאורה, דגימה או אטמוספרה אלה לשיטה זו. ההגדרות שלך נשמרות.",
  "render.cpu_volume_path_required": "יש להפעיל תאורה עקיפה כדי להשתמש באטמוספרה ב־CPU.",
  "render.cpu_warm_cool": "חם וקר",
-  "render.denoise_class_background": "דולג: רקע",
-  "render.denoise_class_coverage": "דולג: כיסוי חלקי",
-  "render.denoise_class_degenerate": "דולג: מסלול מנוון",
-  "render.denoise_class_depth": "דולג: מגבלת עומק מסלול",
-  "render.denoise_class_emitter": "דולג: מקור אור",
-  "render.denoise_class_exit": "דולג: יציאה לא תואמת",
-  "render.denoise_class_identity": "דולג: מגבלת מזהי הנחיה",
-  "render.denoise_class_lens": "דולג: עומק שדה",
-  "render.denoise_class_material": "דולג: חומר לא נתמך",
-  "render.denoise_class_nested": "דולג: תווך מקונן",
-  "render.denoise_class_optical": "מתאים: משטח דרך שבירה",
-  "render.denoise_class_reflection": "דולג: נקודת סיום מחזירה",
-  "render.denoise_class_surface": "מתאים: משטח",
-  "render.denoise_class_tir": "דולג: החזרה פנימית מלאה",
-  "render.denoise_class_transmission": "דולג: העברה נוספת",
-  "render.denoise_class_unavailable": "דולג: אין נתוני הנחיה",
-  "render.denoise_class_volume": "דולג: פיזור נפחי",
-  "render.denoise_diagnostics_counts": "מתאימים: {eligible} · דולגו: {skipped}",
-  "render.denoise_diagnostics_enable": "איסוף נתוני אבחון להפחתת רעש",
-  "render.denoise_diagnostics_grid": "ספירת פיקסלים בגודל הפנימי {width} × {height}.",
-  "render.denoise_diagnostics_help": "נאספים מספרי הפיקסלים המתאימים ואלה שדולגו, גם כשהפחתת הרעש כבויה. הספירה לפי גודל הרינדור הפנימי; המסכה לפי גודל הפלט.",
-  "render.denoise_diagnostics_title": "אבחון הפחתת רעש",
-  "render.denoise_export_mask": "ייצוא המסכה כ־PNG",
-  "render.denoise_firefly": "דיכוי פיקסלים בהירים מבודדים",
-  "render.denoise_format_mask": "מסכה PNG",
-  "render.denoise_mask_copy_help": "אפשר לייצא את מסכת הפחתת הרעש כ־PNG, או לחזור לתמונה המרונדרת כדי להעתיק אותה.",
-  "render.denoise_mask_unavailable": "יש להפעיל אבחון הפחתת רעש ולרנדר תמונה כדי לבדוק את המסכה שלה.",
-  "render.denoise_optical_filter": "סינון מראות וזכוכית",
-  "render.denoise_optical_filter_help": "סינון אור מוחזר ומועבר שמתאים לסינון. כיבוי האפשרות מגביל את הסרת הרעש למשטחים אטומים.",
-  "render.denoise_passes": "מעברי סינון",
-  "render.denoise_settings_help": "מעברים נוספים מחליקים אזור רחב יותר. העוצמה קובעת כמה סינון מופעל בכל מעבר. מסלולים אופטיים שאינם נתמכים נשארים ללא סינון.",
-  "render.denoise_strength": "עוצמת הפחתת רעש",
-  "render.denoise_view_image": "תמונה מרונדרת",
-  "render.denoise_view_mask": "מסכת הפחתת רעש",
  "render.diag_bodies": "גופים גלויים",
  "render.diag_job_details": "פרטי המשימה שנלכדו",
  "render.diag_last_check": "בדיקה מקדימה אחרונה",
@@ -4046,8 +4000,6 @@
  "render.material_transient": "דריסות אופטיות זמניות ללשונית המסמך הזאת. הן אינן נשמרות בתכן, בהגדרת ההדמיה או בספריית החומרים.",
  "render.material_v_up": "כיוון V של הטקסטורה מצביע מעלה בתמונה",
  "render.material_weight": "משקל הציפוי (0–1)",
-  "render.metal_energy_compensation": "שחזור ההחזר של מתכת מחוספסת",
-  "render.metal_energy_compensation_help": "מפצה על האור שאובד בין הפאות המיקרוסקופיות של מתכת מחוספסת. עיבוד במעבד דורש תאורה עקיפה.",
  "render.method_cpu": "מעקב קרניים ב־CPU",
  "render.method_gpu": "מעקב מסלולים ב־GPU",
  "render.method_limit_raster": "רסטר משתמש בתצוגה המקדימה הקבועה של הסטודיו האטום. לפקדים האופטיים הנתמכים יש לבחור שיטת מעקב קרניים מפורשת.",
@@ -4176,8 +4128,6 @@
  "render.quality_denoise_on": "הפחתת רעש: פעילה",
  "render.quality_draft": "טיוטה",
  "render.quality_high": "גבוהה",
-  "render.quality_legacy_samples": "ערך שמור: {samples} דגימות לפיקסל. בחירות חדשות מוגבלות ל־{maximum} דגימות לפיקסל.",
-  "render.quality_preset_limit": "הגדרה קבועה זו חורגת ממגבלת הבחירה של 16384 דגימות לפיקסל. יש לבחור עד 16384 דגימות.",
  "render.quality_projection_help": "בדיקה זו משנה רק רזולוציה, תקציב דגימות, עומק נתיב, זרע והפחתת רעש. ההגדרות האחרות נשמרות; התקציב אינו מעיד על התכנסות התמונה.",
  "render.quality_review": "סקירת תקציב הדגימה",
  "render.quality_summary": "{width} × {height} · {samples} דגימות · עומק {depth} · זרע {seed} · {denoise}",
@@ -4325,7 +4275,6 @@
  "render.show_shots_label": "הצג את סרגל הצילומים",
  "render.size_4k": "4K",
  "render.size_4k_uhd": "4K UHD",
-  "render.size_8k_uhd": "8K UHD",
  "render.size_custom": "מותאם…",
  "render.size_full_hd": "Full HD",
  "render.size_hd": "HD",
@@ -4488,11 +4437,6 @@
  "render.subsurface_enable": "הילוך אקראי לפיזור פנימי",
  "render.subsurface_help": "לדיאלקטרי סגור בלבד. פיזור ובליעת RGB הם מקדמים נפרדים לכל mm. המסלולים מתפזרים בתוך הגאומטריה בפועל, ואז נשברים או מוחזרים בגבול. יש לבטל העברת צל ישרה, הסרת רעש משטחית ונפח חיצוני; ולהשתמש בשכבת פרנל אחת. אינו שיידר דיפוזיה, אינו רשת צפיפות ואינו חומר מדוד. תווך צפוף עשוי לדרוש יותר דגימות ועומק מסלול.",
  "render.subsurface_rate": "קצב התנגשויות הפיזור",
-  "render.supersampling": "דגימת יתר",
-  "render.supersampling_dimensions": "רינדור בגודל {width} × {height} והקטנה ל־{output_width} × {output_height}. נעשה שימוש בפי ארבעה פיקסלים.",
-  "render.supersampling_help": "רינדור ברוחב ובגובה כפולים, ואז הקטנה במרחב אור ליניארי. גודל הפלט נשאר ללא שינוי.",
-  "render.supersampling_off": "כבוי",
-  "render.supersampling_x2": "2×",
  "render.surface_import.author": "יוצר",
  "render.surface_import.busy": "מתבצע ייבוא תמונה…",
  "render.surface_import.complete": "בחר תמונה והזן את היוצר, המקור והרישיון שלה.",
@@ -4506,8 +4450,6 @@
  "render.surface_import.saved_cpu": "יש לשמור את המפות לשימוש בהדמיה ב־CPU.",
  "render.surface_import.source": "מקור",
  "render.surface_import.title": "ייבוא תמונה",
-  "render.texture_filtering": "סינון פרטי מרקם",
-  "render.texture_filtering_help": "שימוש ברמות פירוט ובסינון אנאיזוטרופי מפחית שינון במרקמים מוקטנים. דורש יותר זיכרון; כשהאפשרות כבויה נשמר הסינון הקודם.",
  "render.tone_aces_fitted": "ACES מותאם",
  "render.tone_reinhard": "ריינהרד",
  "render.transmission_scope": "זכוכית GPU תומכת בתווכים נפרדים מאושרים. תווכים מקוננים ללא הגבלה ומעריך העברה ללא רעש אינם מסופקים.",
@@ -1509,7 +1509,6 @@
  "cmd.timeline_stop": "履歴を停止",
  "cmd.timeline_suppress": "フィーチャーを抑制",
  "cmd.ui.assistant": "アシスタントの表示切り替え",
-  "cmd.ui.palette": "コマンドを検索",
  "cmd.view.navigator": "カスタム ビューナビゲーター",
  "cmd.view.render_browser": "Renderブラウザー",
  "cmd.view.render_dock": "レンダードックを移動",
@@ -2432,7 +2431,6 @@
  "parts.dimension.width": "幅",
  "parts.family.bearing": "深溝玉軸受（外形）",
  "parts.family.button_head_cap_screw": "ボタンヘッド六角穴付きボルト",
-  "parts.family.countersunk_socket_screw": "六角穴付き皿ボルト",
  "parts.family.dowel_pin": "平行ピン",
  "parts.family.hex_bolt": "六角ボルト",
  "parts.family.hex_cap_screw_inch": "六角ボルト（インチ）",
@@ -2828,8 +2826,6 @@
  "prefs.remember_dialog_values.help": "既定ではオフです。オンにすると、コマンドが成功した後、SolidCraft を閉じるまで、同じコマンドを次に開いたときに安全な値とオプションを再利用します。",
  "prefs.render_legacy_image_defaults": "以前のレンダー画像の既定値を使用",
  "prefs.render_legacy_image_defaults_help": "以前の手動の画像ワークフローを使用します。新しいセットアップはCPUラスタ、CPUレイトレーシングは固定サンプリングとし、結果は手動で開きます。レンダーに入るたびにビューをフィットし、ショットを切り替えても保存カメラを復元せず、以前のフレーミングとナビゲーションを使用します。自動のライブ画像更新は無効にします。保存済みのセットアップは変更しません。",
-  "prefs.render_legacy_memory_admission": "以前のレンダリング用メモリチェックを使用",
-  "prefs.render_legacy_memory_admission_help": "推定使用量が使用可能なRAMを超えていても、共有およびホストの固定メモリ上限内でネイティブレンダリングを許可します。デバイスの制限とメモリ割り当てのチェックは引き続き適用されます。",
  "prefs.render_previous_geometry_budget": "レンダープレビューで以前のジオメトリ予算を使用",
  "prefs.render_previous_geometry_budget_help": "デバイスに基づく予算の代わりに、以前の固定ジオメトリ上限（64ビットデスクトップでは512 MiB、その他では128 MiB）に戻します。",
  "prefs.reports_saved": "{n} 件保存済み",
@@ -3224,10 +3220,8 @@
  "render.category_paint": "塗装",
  "render.category_plastic": "プラスチック",
  "render.category_wood": "木材",
-  "render.caustics_area_lights": "面光源のコースティクス",
  "render.caustics_depth": "集光経路の深さ",
  "render.caustics_enable": "点光源・平行光源によるガラスの集光",
-  "render.caustics_environment": "環境光のコースティクス",
  "render.caustics_help": "光子数はノイズと計算量を調整します。収集半径を広げると細部より滑らかさを優先します。CPUでは間接照明が必要です。",
  "render.caustics_path_required": "CPUの集光には間接照明が必要です。",
  "render.caustics_photons": "光子数",
@@ -3404,7 +3398,7 @@
  "render.cpu_opaque_required": "CPU レイトレーシングには不透明な背景が必要です。透明な背景を解除してください。",
  "render.cpu_options_pending": "このCPUパネルでは、発光、表面効果、ガラス、異方性はまだ編集できません。使用前にそれらのAPIオプションを解除してください。",
  "render.cpu_path_depth": "パス深度",
-  "render.cpu_path_help": "不透明な面の間で反射し、対応するガラス形状を通る光を計算します。プログレッシブ描画とレイトレーシングの影が必要です。パス深度は最初の交点から、照明を計算する面、ガラス境界、散乱イベントを数えます（1～64）。深度1は不透明面の直接照明のみです。値を上げると反射やガラスの通過を増やせますが、時間がかかる場合があります。独自の反射設定や異方性を使うには間接照明をオフにしてください。",
+  "render.cpu_path_help": "不透明な面の間で反射し、対応するガラス形状を通る光を計算します。プログレッシブ描画とレイトレーシングの影が必要です。パス深度は最初の交点から、照明を計算する面、ガラス境界、散乱イベントを数えます（1～16）。深度1は不透明面の直接照明のみです。値を上げると反射やガラスの通過を増やせますが、時間がかかる場合があります。独自の反射設定や異方性を使うには間接照明をオフにしてください。",
  "render.cpu_path_lighting": "間接照明",
  "render.cpu_path_optics_reason": "設定は保持されます。独自の反射設定や異方性を使うには間接照明をオフにしてください。",
  "render.cpu_point": "点光源",
@@ -3444,12 +3438,6 @@
  "render.cpu_subsurface_denoise_reason": "CPUの内部散乱ではノイズ除去をオフにしてください。設定値は保持されます。",
  "render.cpu_subsurface_help": "散乱は閉じたガラスの内部で光の方向を変えます。正の値には間接照明を使い、ノイズ除去をオフにします。率は1mmあたりの衝突回数です。0では散乱を加えません。方向の偏りが正なら前方、負なら後方を優先します。",
  "render.cpu_summary": "CPUレイトレーシング・反射・HDR・平行光と点光源",
-  "render.cpu_threads": "CPU ワーカー",
-  "render.cpu_threads_auto": "自動",
-  "render.cpu_threads_custom": "カスタム",
-  "render.cpu_threads_help": "自動では利用可能な CPU ワーカーを使用します。1 ワーカーでは順次実行します。ワーカー数を増やすとメモリ使用量が増える場合があります。",
-  "render.cpu_threads_single": "1 ワーカー",
-  "render.cpu_threads_web": "ブラウザーでのレンダリングは単一の協調ワーカーを使用します。保存されたデスクトップ用ワーカー設定は保持されます。",
  "render.cpu_transparent_help": "透明PNGは背景を除き、輪郭の被覆率を保持します。ボディと面の不透明度は100%にしてください。",
  "render.cpu_volume_enable_path": "間接照明を有効にする",
  "render.cpu_volume_enable_path_plan": "CPUレイトレーシング · パス深度{depth} · {spp}サンプル/ピクセル · シード{seed} · レイトレースシャドウ。大気と画像予算の設定を保持します。",
@@ -3458,40 +3446,6 @@
  "render.cpu_volume_method_incompatible": "この照明、サンプリング、大気の設定はこの方式に引き継げません。設定は保持されます。",
  "render.cpu_volume_path_required": "CPUの大気を使うには間接照明を有効にしてください。",
  "render.cpu_warm_cool": "暖色と寒色",
-  "render.denoise_class_background": "対象外: 背景",
-  "render.denoise_class_coverage": "対象外: 部分的なカバレッジ",
-  "render.denoise_class_degenerate": "対象外: 退化した経路",
-  "render.denoise_class_depth": "対象外: 経路深度の上限",
-  "render.denoise_class_emitter": "対象外: 発光体",
-  "render.denoise_class_exit": "対象外: 不整合な出射",
-  "render.denoise_class_identity": "対象外: ガイド識別子の上限",
-  "render.denoise_class_lens": "対象外: 被写界深度",
-  "render.denoise_class_material": "対象外: 未対応のマテリアル",
-  "render.denoise_class_nested": "対象外: 入れ子の媒質",
-  "render.denoise_class_optical": "対象: 屈折越しのサーフェス",
-  "render.denoise_class_reflection": "対象外: 反射する終点",
-  "render.denoise_class_surface": "対象: サーフェス",
-  "render.denoise_class_tir": "対象外: 全反射",
-  "render.denoise_class_transmission": "対象外: 追加の透過",
-  "render.denoise_class_unavailable": "対象外: ガイドなし",
-  "render.denoise_class_volume": "対象外: ボリューム散乱",
-  "render.denoise_diagnostics_counts": "対象: {eligible} · 対象外: {skipped}",
-  "render.denoise_diagnostics_enable": "ノイズ除去の診断情報を収集",
-  "render.denoise_diagnostics_grid": "内部サイズ {width} × {height} でのピクセル数。",
-  "render.denoise_diagnostics_help": "ノイズ除去がオフでも、対象と対象外のピクセル数を収集します。集計は内部レンダリングサイズ、マスクは出力サイズに対応します。",
-  "render.denoise_diagnostics_title": "ノイズ除去の診断",
-  "render.denoise_export_mask": "マスク PNG を書き出す",
-  "render.denoise_firefly": "孤立した高輝度ピクセルを抑制",
-  "render.denoise_format_mask": "マスク PNG",
-  "render.denoise_mask_copy_help": "ノイズ除去マスクを PNG で書き出すか、レンダリング画像に戻ってコピーしてください。",
-  "render.denoise_mask_unavailable": "ノイズ除去の診断を有効にして画像をレンダリングすると、マスクを確認できます。",
-  "render.denoise_optical_filter": "鏡とガラスをフィルター処理",
-  "render.denoise_optical_filter_help": "対象となる反射光と透過光にフィルターを適用します。オフにすると、不透明な表面のみのノイズを除去します。",
-  "render.denoise_passes": "フィルターパス数",
-  "render.denoise_settings_help": "パス数を増やすと、より広い範囲が平滑化されます。強度は各パスでのフィルター適用量を調整します。未対応の光路にはフィルターを適用しません。",
-  "render.denoise_strength": "ノイズ除去の強度",
-  "render.denoise_view_image": "レンダリング画像",
-  "render.denoise_view_mask": "ノイズ除去マスク",
  "render.diag_bodies": "表示ボディ数",
  "render.diag_job_details": "記録されたジョブの詳細",
  "render.diag_last_check": "前回の事前確認",
@@ -4046,8 +4000,6 @@
  "render.material_transient": "この文書タブの一時的な光学設定です。設計、レンダー設定、マテリアルライブラリには保存されません。",
  "render.material_v_up": "テクスチャV軸は画像の上向き",
  "render.material_weight": "コートの重み（0～1）",
-  "render.metal_energy_compensation": "粗い金属の反射を補正",
-  "render.metal_energy_compensation_help": "粗い金属の微小面間で失われる光を補います。CPU レンダリングには間接照明が必要です。",
  "render.method_cpu": "CPU レイトレーシング",
  "render.method_gpu": "GPU パストレーシング",
  "render.method_limit_raster": "ラスターは固定の不透明スタジオプレビューを使用します。対応する光学設定には明示的なレイトレーシング方式を選択してください。",
@@ -4176,8 +4128,6 @@
  "render.quality_denoise_on": "ノイズ低減：オン",
  "render.quality_draft": "ドラフト",
  "render.quality_high": "高品質",
-  "render.quality_legacy_samples": "保存値: {samples} spp。新しい選択値の上限は {maximum} spp です。",
-  "render.quality_preset_limit": "このプリセットは選択上限の 16384 spp を超えています。16384 以下のサンプル数を選択してください。",
  "render.quality_projection_help": "この確認で変更するのは、解像度、サンプル予算、パス深度、シード、ノイズ低減だけです。他の設定は維持され、収束は保証されません。",
  "render.quality_review": "サンプリング予算を確認",
  "render.quality_summary": "{width} × {height} · {samples} サンプル · 深度 {depth} · シード {seed} · {denoise}",
@@ -4325,7 +4275,6 @@
  "render.show_shots_label": "ショットストリップを表示",
  "render.size_4k": "4K",
  "render.size_4k_uhd": "4K UHD",
-  "render.size_8k_uhd": "8K UHD",
  "render.size_custom": "カスタム…",
  "render.size_full_hd": "フルHD",
  "render.size_hd": "HD",
@@ -4488,11 +4437,6 @@
  "render.subsurface_enable": "内部散乱ランダムウォーク",
  "render.subsurface_help": "閉じた誘電体専用。散乱とRGB吸収は別々の毎mm係数です。実際の形状内で散乱し、境界で屈折・反射します。直線透過影、表面ノイズ除去、外部ボリュームを無効にし、フレネル層数を1にします。拡散シェーダー、密度グリッド、実測物性ではありません。高密度ではサンプル数と深度が必要です。",
  "render.subsurface_rate": "散乱衝突率",
-  "render.supersampling": "スーパーサンプリング",
-  "render.supersampling_dimensions": "{width} × {height} でレンダリングし、{output_width} × {output_height} に縮小します。ピクセル数は 4 倍になります。",
-  "render.supersampling_help": "幅と高さをそれぞれ 2 倍にしてレンダリングし、リニアライトで縮小します。出力サイズは変わりません。",
-  "render.supersampling_off": "オフ",
-  "render.supersampling_x2": "2×",
  "render.surface_import.author": "作者",
  "render.surface_import.busy": "画像をインポート中…",
  "render.surface_import.complete": "画像を選び、作者、出典、ライセンスを入力してください。",
@@ -4506,8 +4450,6 @@
  "render.surface_import.saved_cpu": "CPUレンダリングで使うにはマップを保存してください。",
  "render.surface_import.source": "出典",
  "render.surface_import.title": "画像をインポート",
-  "render.texture_filtering": "テクスチャの細部をフィルタリング",
-  "render.texture_filtering_help": "ミップレベルと異方性フィルタリングで縮小時のちらつきを抑えます。メモリ使用量が増えます。オフでは従来のフィルタリングを維持します。",
  "render.tone_aces_fitted": "ACES近似",
  "render.tone_reinhard": "Reinhard",
  "render.transmission_scope": "GPUガラスは検証された非交差媒体に対応します。無制限の入れ子媒体やノイズのない透過推定器は提供しません。",
@@ -1252,7 +1252,6 @@
  "cmd.timeline_stop": "기록 재생 중지",
  "cmd.timeline_suppress": "특성 비활성화",
  "cmd.ui.assistant": "도우미 표시 전환",
-  "cmd.ui.palette": "명령 검색",
  "cmd.view.navigator": "사용자 지정 뷰 탐색기",
  "cmd.view.render_browser": "렌더 브라우저",
  "cmd.view.render_dock": "렌더 도크 이동",
@@ -2130,8 +2129,6 @@
  "prefs.remember_dialog_values.help": "기본값은 꺼짐입니다. 켜면 명령이 성공한 후 SolidCraft를 닫을 때까지 같은 명령을 다음에 열 때 안전한 값과 옵션을 다시 사용합니다.",
  "prefs.render_legacy_image_defaults": "이전 렌더 이미지 기본값 사용",
  "prefs.render_legacy_image_defaults_help": "이전의 수동 이미지 작업 방식을 유지합니다. 새 설정은 CPU 래스터를 사용하고 CPU 광선 추적은 고정 샘플링을 사용하며 결과는 직접 엽니다. 렌더에 들어갈 때 뷰를 다시 맞추고, 샷을 전환해도 저장된 카메라를 복원하지 않으며, 이전의 프레이밍과 탐색 방식을 사용합니다. 자동 실시간 이미지 피드백을 끕니다. 저장된 설정은 변경하지 않습니다.",
-  "prefs.render_legacy_memory_admission": "이전 렌더링 메모리 검사 사용",
-  "prefs.render_legacy_memory_admission_help": "예상 사용량이 사용 가능한 RAM을 초과해도 고정된 공유 및 호스트 메모리 한도 내에서 네이티브 렌더링을 허용합니다. 장치 제한과 메모리 할당 검사는 계속 적용됩니다.",
  "prefs.reports_saved": "{n}개 저장됨",
  "prefs.restore_page_defaults": "페이지 기본값 복원",
  "prefs.ribbon_click_ends_tool": "실행 중인 도구의 버튼을 클릭하면 도구 종료",
@@ -2494,10 +2491,8 @@
  "render.category_paint": "페인트",
  "render.category_plastic": "플라스틱",
  "render.category_wood": "목재",
-  "render.caustics_area_lights": "면광원 집광 효과",
  "render.caustics_depth": "집광 경로 깊이",
  "render.caustics_enable": "점광원 및 방향광의 유리 집광",
-  "render.caustics_environment": "환경광 집광 효과",
  "render.caustics_help": "광자 수는 노이즈와 계산량을 조절합니다. 수집 반경은 세밀한 표현과 부드러운 추정 사이를 조절합니다. CPU에는 간접 조명이 필요합니다.",
  "render.caustics_path_required": "CPU 집광에는 간접 조명이 필요합니다.",
  "render.caustics_photons": "광자 수",
@@ -2674,7 +2669,7 @@
  "render.cpu_opaque_required": "CPU 레이 트레이싱에는 불투명 배경이 필요합니다. 계속하려면 투명 배경을 해제하세요.",
  "render.cpu_options_pending": "이 CPU 패널은 아직 발광, 표면 효과, 유리, 이방성을 편집할 수 없습니다. 사용하기 전에 해당 API 옵션을 해제하세요.",
  "render.cpu_path_depth": "경로 깊이",
-  "render.cpu_path_help": "불투명 표면 사이에서 반사되고 지원되는 유리 형상을 통과하는 빛을 계산합니다. 점진적 렌더링과 레이 추적 그림자가 필요합니다. 경로 깊이는 첫 교점부터 조명이 계산되는 표면, 유리 경계 및 산란 이벤트를 셉니다(1–64). 깊이 1은 불투명 표면의 직접 조명만 계산합니다. 값을 높이면 반사나 유리 통과가 늘어나며 시간이 더 걸릴 수 있습니다. 사용자 반사 설정이나 이방성을 사용하려면 간접 조명을 끄세요.",
+  "render.cpu_path_help": "불투명 표면 사이에서 반사되고 지원되는 유리 형상을 통과하는 빛을 계산합니다. 점진적 렌더링과 레이 추적 그림자가 필요합니다. 경로 깊이는 첫 교점부터 조명이 계산되는 표면, 유리 경계 및 산란 이벤트를 셉니다(1–16). 깊이 1은 불투명 표면의 직접 조명만 계산합니다. 값을 높이면 반사나 유리 통과가 늘어나며 시간이 더 걸릴 수 있습니다. 사용자 반사 설정이나 이방성을 사용하려면 간접 조명을 끄세요.",
  "render.cpu_path_lighting": "간접 조명",
  "render.cpu_path_optics_reason": "설정은 유지됩니다. 사용자 반사 설정이나 이방성을 사용하려면 간접 조명을 끄세요.",
  "render.cpu_point": "점 조명",
@@ -2714,12 +2709,6 @@
  "render.cpu_subsurface_denoise_reason": "CPU 내부 산란을 사용하려면 노이즈 제거를 끄세요. 설정은 유지됩니다.",
  "render.cpu_subsurface_help": "산란은 닫힌 유리 내부에서 빛의 방향을 바꿉니다. 양수 비율에는 간접광을 사용하고 노이즈 제거를 끄세요. 비율은 mm당 충돌 횟수이며, 0은 산란을 추가하지 않습니다. 방향 편향이 양수이면 전방, 음수이면 후방을 선호합니다.",
  "render.cpu_summary": "CPU 레이 트레이싱 · 반사 · HDR · 방향성 및 점 조명",
-  "render.cpu_threads": "CPU 작업 스레드",
-  "render.cpu_threads_auto": "자동",
-  "render.cpu_threads_custom": "사용자 지정",
-  "render.cpu_threads_help": "자동은 사용 가능한 CPU 작업 스레드를 사용합니다. 단일 스레드는 순차적으로 실행됩니다. 스레드가 많을수록 메모리가 더 필요할 수 있습니다.",
-  "render.cpu_threads_single": "단일",
-  "render.cpu_threads_web": "브라우저 렌더링은 하나의 협력형 작업 스레드를 사용합니다. 저장된 데스크톱 스레드 설정은 유지됩니다.",
  "render.cpu_transparent_help": "투명 PNG는 배경을 제거하고 가장자리 커버리지를 유지합니다. 바디와 면의 불투명도는 100%여야 합니다.",
  "render.cpu_volume_enable_path": "간접 조명 켜기",
  "render.cpu_volume_enable_path_plan": "CPU 레이 트레이싱 · 경로 깊이 {depth} · 픽셀당 {spp}샘플 · 시드 {seed} · 레이 트레이싱 그림자. 작성한 대기와 이미지 예산을 유지합니다.",
@@ -2728,40 +2717,6 @@
  "render.cpu_volume_method_incompatible": "이 조명, 샘플링 또는 대기 설정을 이 방식으로 옮길 수 없습니다. 설정은 유지됩니다.",
  "render.cpu_volume_path_required": "CPU 대기를 사용하려면 간접 조명을 켜세요.",
  "render.cpu_warm_cool": "따뜻함과 차가움",
-  "render.denoise_class_background": "건너뜀: 배경",
-  "render.denoise_class_coverage": "건너뜀: 부분 커버리지",
-  "render.denoise_class_degenerate": "건너뜀: 퇴화 경로",
-  "render.denoise_class_depth": "건너뜀: 경로 깊이 한도",
-  "render.denoise_class_emitter": "건너뜀: 발광체",
-  "render.denoise_class_exit": "건너뜀: 호환되지 않는 출사",
-  "render.denoise_class_identity": "건너뜀: 가이드 식별자 한도",
-  "render.denoise_class_lens": "건너뜀: 피사계 심도",
-  "render.denoise_class_material": "건너뜀: 지원되지 않는 재질",
-  "render.denoise_class_nested": "건너뜀: 중첩된 매질",
-  "render.denoise_class_optical": "적용 가능: 굴절을 통해 보이는 표면",
-  "render.denoise_class_reflection": "건너뜀: 반사 종점",
-  "render.denoise_class_surface": "적용 가능: 표면",
-  "render.denoise_class_tir": "건너뜀: 전반사",
-  "render.denoise_class_transmission": "건너뜀: 추가 투과",
-  "render.denoise_class_unavailable": "건너뜀: 가이드 없음",
-  "render.denoise_class_volume": "건너뜀: 볼륨 산란",
-  "render.denoise_diagnostics_counts": "적용 가능: {eligible} · 건너뜀: {skipped}",
-  "render.denoise_diagnostics_enable": "노이즈 제거 진단 수집",
-  "render.denoise_diagnostics_grid": "내부 크기 {width} × {height} 기준 픽셀 수입니다.",
-  "render.denoise_diagnostics_help": "노이즈 제거가 꺼져 있어도 적용 가능 픽셀과 건너뛴 픽셀 수를 수집합니다. 집계는 내부 렌더링 크기 기준이며 마스크는 출력 크기를 사용합니다.",
-  "render.denoise_diagnostics_title": "노이즈 제거 진단",
-  "render.denoise_export_mask": "마스크 PNG 내보내기",
-  "render.denoise_firefly": "고립된 밝은 픽셀 억제",
-  "render.denoise_format_mask": "마스크 PNG",
-  "render.denoise_mask_copy_help": "노이즈 제거 마스크를 PNG로 내보내거나 렌더링 이미지로 돌아가 이미지를 복사하세요.",
-  "render.denoise_mask_unavailable": "노이즈 제거 진단을 켜고 이미지를 렌더링하면 마스크를 확인할 수 있습니다.",
-  "render.denoise_optical_filter": "거울과 유리 필터링",
-  "render.denoise_optical_filter_help": "필터링 가능한 반사광과 투과광을 처리합니다. 끄면 불투명한 표면의 노이즈만 제거합니다.",
-  "render.denoise_passes": "필터 반복 횟수",
-  "render.denoise_settings_help": "반복 횟수가 많을수록 더 넓은 영역을 부드럽게 합니다. 강도는 각 단계에서 적용하는 필터의 정도를 조절합니다. 지원되지 않는 광 경로에는 필터를 적용하지 않습니다.",
-  "render.denoise_strength": "노이즈 제거 강도",
-  "render.denoise_view_image": "렌더링 이미지",
-  "render.denoise_view_mask": "노이즈 제거 마스크",
  "render.diag_bodies": "표시된 바디",
  "render.diag_job_details": "캡처된 작업 세부 정보",
  "render.diag_last_check": "마지막 사전 점검",
@@ -3314,8 +3269,6 @@
  "render.material_transient": "이 문서 탭의 임시 광학 재정의입니다. 디자인, 렌더 설정, 재질 라이브러리에는 저장되지 않습니다.",
  "render.material_v_up": "텍스처 V축은 이미지 위쪽",
  "render.material_weight": "코트 가중치 (0~1)",
-  "render.metal_energy_compensation": "거친 금속의 반사 복원",
-  "render.metal_energy_compensation_help": "거친 금속의 미세면 사이에서 손실되는 빛을 보정합니다. CPU 렌더링에는 간접 조명이 필요합니다.",
  "render.method_cpu": "CPU 레이 트레이싱",
  "render.method_gpu": "GPU 패스 트레이싱",
  "render.method_limit_raster": "래스터는 고정된 불투명 스튜디오 미리보기를 사용합니다. 지원되는 광학 컨트롤을 쓰려면 명시적인 레이 트레이싱 방식을 선택하세요.",
@@ -3444,8 +3397,6 @@
  "render.quality_denoise_on": "노이즈 제거: 켜짐",
  "render.quality_draft": "초안",
  "render.quality_high": "높음",
-  "render.quality_legacy_samples": "저장된 값: {samples} spp. 새 선택값은 {maximum} spp로 제한됩니다.",
-  "render.quality_preset_limit": "이 프리셋은 선택 한도인 16384 spp를 초과합니다. 샘플 수를 16384 이하로 선택하세요.",
  "render.quality_projection_help": "이 검토에서는 해상도, 샘플 예산, 경로 깊이, 시드 및 노이즈 제거만 변경합니다. 다른 설정은 유지되며 수렴은 보장되지 않습니다.",
  "render.quality_review": "샘플링 예산 검토",
  "render.quality_summary": "{width} × {height} · 샘플 {samples}개 · 깊이 {depth} · 시드 {seed} · {denoise}",
@@ -3592,7 +3543,6 @@
  "render.show_shots_label": "샷 스트립 표시",
  "render.size_4k": "4K",
  "render.size_4k_uhd": "4K UHD",
-  "render.size_8k_uhd": "8K UHD",
  "render.size_custom": "사용자 지정…",
  "render.size_full_hd": "풀 HD",
  "render.size_hd": "HD",
@@ -3755,11 +3705,6 @@
  "render.subsurface_enable": "내부 산란 랜덤 워크",
  "render.subsurface_help": "닫힌 유전체 전용입니다. 산란과 RGB 흡수는 mm당 별도 계수입니다. 경로는 실제 형상 내부에서 산란한 뒤 경계에서 굴절하거나 반사합니다. 직선 그림자 투과, 표면 노이즈 제거, 외부 볼륨을 끄고 프레넬 층 하나를 사용하세요. 확산 셰이더, 밀도 그리드, 측정된 재질이 아닙니다. 밀도가 높은 매질에는 더 많은 샘플과 경로 깊이가 필요할 수 있습니다.",
  "render.subsurface_rate": "산란 충돌률",
-  "render.supersampling": "슈퍼샘플링",
-  "render.supersampling_dimensions": "{width} × {height}로 렌더링한 뒤 {output_width} × {output_height}로 축소합니다. 픽셀 수가 네 배가 됩니다.",
-  "render.supersampling_help": "가로와 세로를 각각 두 배로 렌더링한 뒤 선형 광 공간에서 축소합니다. 출력 크기는 그대로 유지됩니다.",
-  "render.supersampling_off": "끄기",
-  "render.supersampling_x2": "2×",
  "render.surface_import.author": "작성자",
  "render.surface_import.busy": "이미지 가져오는 중…",
  "render.surface_import.complete": "이미지를 선택하고 작성자, 출처, 라이선스를 입력하세요.",
@@ -3773,8 +3718,6 @@
  "render.surface_import.saved_cpu": "CPU 렌더링에서 사용하려면 맵을 저장하세요.",
  "render.surface_import.source": "출처",
  "render.surface_import.title": "이미지 가져오기",
-  "render.texture_filtering": "텍스처 세부 필터링",
-  "render.texture_filtering_help": "밉 레벨과 비등방성 필터링으로 축소 시 텍스처 계단 현상을 줄입니다. 메모리를 더 사용하며 끄면 기존 필터링을 유지합니다.",
  "render.tone_aces_fitted": "ACES 근사",
  "render.tone_reinhard": "Reinhard",
  "render.transmission_scope": "GPU 유리는 보증된 분리 매질을 지원합니다. 제한 없는 중첩 매질과 노이즈 없는 투과 추정기는 제공되지 않습니다.",
@@ -1,26 +0,0 @@
-{
-  "en": {
-    "component.error.ambiguous_name": "Several components are named `{name}`. Use a numeric component ID: {ids}."
-  },
-  "ar": {
-    "component.error.ambiguous_name": "توجد عدة مكونات بالاسم `{name}`. استخدم معرّف مكوّن رقميًا: {ids}."
-  },
-  "de": {
-    "component.error.ambiguous_name": "Mehrere Komponenten heißen `{name}`. Verwende eine numerische Komponenten-ID: {ids}."
-  },
-  "he": {
-    "component.error.ambiguous_name": "לכמה רכיבים יש השם `{name}`. יש להשתמש במזהה רכיב מספרי: {ids}."
-  },
-  "ja": {
-    "component.error.ambiguous_name": "複数のコンポーネントに `{name}` という名前が付いています。数値のコンポーネント ID を使用してください: {ids}。"
-  },
-  "ko": {
-    "component.error.ambiguous_name": "이름이 `{name}`인 구성요소가 여러 개입니다. 숫자 구성요소 ID를 사용하세요: {ids}."
-  },
-  "vi": {
-    "component.error.ambiguous_name": "Nhiều thành phần có tên `{name}`. Hãy dùng ID thành phần dạng số: {ids}."
-  },
-  "zh": {
-    "component.error.ambiguous_name": "多个组件名为 `{name}`。请使用数字组件 ID：{ids}。"
-  }
-}
@@ -1,104 +0,0 @@
-{
-  "uk": {
-    "Edit Holes": "Редагувати отвори",
-    "Select the curves to divide first": "Спершу виберіть криві для поділу",
-    "browser.canvas_locked": "Полотно заблоковано. Спершу розблокуйте його.",
-    "cmd.model_body_features": "Перелічити операції тіла",
-    "cmd.panel.focus.next": "Сфокусувати наступну панель",
-    "cmd.panel.focus.previous": "Сфокусувати попередню панель",
-    "cmd.panel.move.next_zone": "Перемістити панель до наступної зони",
-    "cmd.panel.sash.down": "Змінити розмір роздільника панелей униз",
-    "cmd.panel.sash.left": "Змінити розмір роздільника панелей ліворуч",
-    "cmd.panel.sash.reset": "Скинути роздільник сфокусованої панелі",
-    "cmd.panel.sash.right": "Змінити розмір роздільника панелей праворуч",
-    "cmd.panel.sash.up": "Змінити розмір роздільника панелей угору",
-    "cmd.panel.toggle": "Перемкнути сфокусовану панель",
-    "cmd.pointcloud_reload": "Перезавантажити хмару точок",
-    "cmd.sketch.replace": "Замінити ескіз",
-    "cmd.sketch_point_divide": "Поділити криву",
-    "cmd.ui.palette": "Пошук команд",
-    "file_load.reloading_cloud": "Перезавантаження хмари точок",
-    "help.sketch.point.divide": "Розміщує точки, що поділяють вибрані криві на рівні за довжиною частини. Точки залишаються на кожній кривій і зберігають свій крок, коли крива змінюється.",
-    "hole_folder.applies_to": "Зміни застосовуються до {count} отворів у теці {folder}; кожен зберігає своє місце.",
-    "nav.orbit_cursor_wrap.help": "Перетягування для обертання, що сягає краю виду, переносить курсор на протилежний край і продовжує обертання. Вимкнено: перетягування зупиняється на краю екрана. Не діє у Wayland і в браузері.",
-    "nav.orbit_cursor_wrap.label": "Переносити курсор під час обертання",
-    "parts.family.countersunk_socket_screw": "Гвинт із потайною головкою та внутрішнім шестигранником",
-    "prefs.browser_body_features": "Операції під тілами",
-    "prefs.browser_body_features_note": "Кожне тіло в браузері розгортається, показуючи операції часового ланцюжка, що його побудували, у порядку ланцюжка.",
-    "prefs.design_tools.hole_group": "Групувати отвори, створені разом",
-    "prefs.design_tools.hole_group_help": "Отвори, створені за один раз, опиняються в одній теці в історії, спершу закритій; відкрийте її, щоб редагувати отвір окремо.",
-    "prefs.design_tools.hole_several": "Кілька отворів на одній грані",
-    "prefs.design_tools.hole_several_help": "Вибір іншого місця на грані додає ще один отвір; вибір отвору видаляє його.",
-    "prefs.history_folder_kind_icon": "Значок теки за її операціями",
-    "prefs.history_folder_kind_icon_note": "Тека історії, усі операції якої одного типу, показує їхній значок.",
-    "prefs.panel_layout.recovery": "Не вдалося відновити збережені компонування панелей. Збережені дані не втрачено; «Класичне» залишається доступним.",
-    "prefs.shared_panel_layout": "Використовувати спільне компонування панелей",
-    "prefs.shared_panel_layout_help": "Показувати наявні браузер, історію та асистента в переміщуваних панелях. Зміна набуде чинності після застосування налаштувань.",
-    "prefs.sketch.escape_twice_finishes": "Подвійний Esc завершує ескіз",
-    "prefs.sketch.escape_twice_finishes_note": "Два швидкі натискання Esc завершують ескіз. Вимкнено: Esc лише скасовує інструмент чи вибір, а ескіз завершує «Завершити ескіз».",
-    "render.caustics_depth": "Глибина шляху каустики",
-    "render.caustics_enable": "Каустика скла від точкових і спрямованих джерел світла",
-    "render.caustics_help": "Кількість фотонів керує шумом і обсягом роботи. Радіус збирання обмінює чіткі деталі на плавнішу оцінку. CPU потребує непрямого освітлення.",
-    "render.caustics_path_required": "Каустика на CPU потребує непрямого освітлення.",
-    "render.caustics_photons": "Фотони",
-    "render.caustics_radius": "Радіус збирання",
-    "render.glass_abbe": "Число Аббе",
-    "render.glass_dispersion": "Хроматична дисперсія",
-    "render.glass_film": "Інтерференція тонкої плівки",
-    "render.glass_film_ior": "IOR плівки",
-    "render.glass_film_thickness": "Товщина плівки",
-    "render.glass_model_enable": "Розширена модель скла",
-    "render.glass_model_help": "Шорсткість скла розсіює промені, що проходять крізь нього. Дисперсія й колір плівки використовують три смуги довжин хвиль. Для шорстких листів потрібно вимкнути пряме пропускання тіней.",
-    "render.glass_roughness": "Шорсткість скла",
-    "render.gpu_job_shader_wait": "Підготовка шейдерів може тривати хвилини",
-    "sketch.divide_hint": "Точки поділяють кожну криву на рівні за довжиною частини й зберігають їх, коли крива змінюється.",
-    "ui.first_dimension_scales": "Перший розмір масштабує креслення",
-    "ui.first_dimension_scales_tip": "Увімкнено: перший лінійний розмір ескізу масштабує креслення, яке він вимірює, тож форма зберігається. Вимкнено: розмір задає лише те, що вимірює.",
-    "ui.heading_divide_curve": "ПОДІЛИТИ КРИВУ",
-    "ui.heading_press_pull": "НАТИСНУТИ/ВИТЯГНУТИ",
-    "ui.mesh_import_origin": "Перемістити до початку координат",
-    "ui.mesh_import_origin_tip": "Центрувати сітку по X і Y, розмістивши її основу на Z = 0. Коли вимкнено, сітка зберігає координати, записані у файлі.",
-    "ui.panel_layout.applied": "Застосовано «{name}» у робочій області «{workspace}»",
-    "ui.panel_layout.cancel": "Скасувати",
-    "ui.panel_layout.confirm_replace": "Замінити «{name}»?",
-    "ui.panel_layout.copy": "Копіювати",
-    "ui.panel_layout.current": "Поточне компонування",
-    "ui.panel_layout.custom": "Власне",
-    "ui.panel_layout.custom_hint": "Панелі переміщено після застосування: {name}.",
-    "ui.panel_layout.details": "Подробиці",
-    "ui.panel_layout.layout_workspace": "Робоча область компонування",
-    "ui.panel_layout.page_defaults_hint": "Скидає налаштування цієї сторінки. Розташування панелей і збережені компонування залишаються без змін.",
-    "ui.panel_layout.panel_layout": "Компонування панелей",
-    "ui.panel_layout.panel_style": "Стиль панелей",
-    "ui.panel_layout.replace": "Замінити компонування",
-    "ui.panel_layout.replace_current": "Замінити поточним",
-    "ui.panel_layout.replace_short": "Замінити",
-    "ui.panel_layout.reset": "Скинути робочу область",
-    "ui.panel_layout.reset_hint": "Повернути робочу область «{workspace}» до типового розташування. Збережені компонування залишаються без змін.",
-    "ui.panel_layout.reset_short": "Скинути",
-    "ui.panel_layout.restore_failed": "Не вдалося відновити ваше компонування",
-    "ui.panel_layout.save": "Зберегти компонування",
-    "ui.panel_layout.save_as": "Зберегти як",
-    "ui.panel_layout.save_as_tile": "Зберегти як…",
-    "ui.panel_layout.selected": "вибрано",
-    "ui.panel_layout.suggested_name": "Компонування {n}",
-    "ui.panel_layout.try_again": "Спробувати знову",
-    "ui.panel_layout.validation.builtin": "Вбудовані компонування не можна змінювати",
-    "ui.panel_layout.validation.duplicate": "Ця назва вже використовується",
-    "ui.panel_layout.validation.empty": "Введіть назву",
-    "ui.panel_layout.validation.full": "Збережено 64 з 64. Виберіть одне для заміни.",
-    "ui.panel_layout.validation.invalid": "Використовуйте від 1 до 64 символів без керівних символів",
-    "ui.panel_layout.workspace.classic": "Класичне",
-    "ui.panel_layout.workspace.modelling": "Моделювання",
-    "ui.panel_layout.workspace.render": "Рендеринг",
-    "ui.panel_layout.workspace.review": "Огляд",
-    "ui.panel_layout.workspace.sketch": "Ескіз",
-    "ui.panel_layout.your_layout": "ваше компонування",
-    "ui.point_cloud_reload": "Перезавантажити з файлу",
-    "ui.project_references_construction": "Проєктувати посилання як допоміжну геометрію",
-    "ui.project_references_construction_note": "«Проєктувати», «Перетин», «Включити 3D-геометрію» і ребра грані, які додає новий ескіз на грані, створюють допоміжну геометрію: посилання для креслення, не включені до профілів. Вони залишаються пов'язаними з моделлю.",
-    "ui.replace_sketch.from_file": "З файлу проєкту…",
-    "ui.replace_sketch.no_sketches": "У цьому проєкті немає ескізу, який можна взяти",
-    "ui.segments": "Сегменти"
-  }
-}
@@ -1509,7 +1509,6 @@
  "cmd.timeline_stop": "Dừng lịch sử",
  "cmd.timeline_suppress": "Tạm nén tính năng",
  "cmd.ui.assistant": "Bật/tắt trợ lý",
-  "cmd.ui.palette": "Tìm kiếm lệnh",
  "cmd.view.navigator": "Khối điều hướng góc nhìn tùy chỉnh",
  "cmd.view.render_browser": "Trình duyệt kết xuất",
  "cmd.view.render_dock": "Di chuyển neo kết xuất",
@@ -2432,7 +2431,6 @@
  "parts.dimension.width": "Bề rộng",
  "parts.family.bearing": "Ổ bi cầu rãnh sâu (bao ngoài)",
  "parts.family.button_head_cap_screw": "Vít đầu tròn lục giác chìm",
-  "parts.family.countersunk_socket_screw": "Vít đầu chìm lục giác chìm",
  "parts.family.dowel_pin": "Chốt trụ",
  "parts.family.hex_bolt": "Bu lông đầu lục giác",
  "parts.family.hex_cap_screw_inch": "Bu lông đầu lục giác (inch)",
@@ -2828,8 +2826,6 @@
  "prefs.remember_dialog_values.help": "Tắt theo mặc định. Khi bật, sau khi lệnh thành công, các giá trị và tùy chọn an toàn của lệnh sẽ được dùng lại vào lần tiếp theo bạn mở cùng lệnh đó, cho đến khi SolidCraft đóng.",
  "prefs.render_legacy_image_defaults": "Dùng mặc định ảnh Kết xuất trước đây",
  "prefs.render_legacy_image_defaults_help": "Giữ quy trình hình ảnh thủ công trước đây: thiết lập mới dùng raster CPU, dò tia CPU dùng lấy mẫu cố định và mở kết quả thủ công. Căn vừa lại khung nhìn khi vào Kết xuất, chuyển góc chụp mà không khôi phục camera đã lưu, đồng thời dùng cách lấy khung hình và điều hướng trước đây. Tắt phản hồi ảnh trực tiếp tự động. Các thiết lập đã lưu không thay đổi.",
-  "prefs.render_legacy_memory_admission": "Dùng cách kiểm tra bộ nhớ kết xuất trước đây",
-  "prefs.render_legacy_memory_admission_help": "Cho phép kết xuất gốc trong giới hạn bộ nhớ dùng chung và của máy chủ cố định, ngay cả khi mức ước tính vượt quá RAM khả dụng. Giới hạn thiết bị và kiểm tra cấp phát bộ nhớ vẫn được áp dụng.",
  "prefs.render_previous_geometry_budget": "Dùng ngân sách hình học trước đây cho bản xem trước kết xuất",
  "prefs.render_previous_geometry_budget_help": "Khôi phục giới hạn hình học cố định trước đây (512 MiB trên máy tính 64 bit, 128 MiB trên các nền tảng khác) thay cho ngân sách dựa trên thiết bị.",
  "prefs.reports_saved": "Đã lưu {n}",
@@ -3224,10 +3220,8 @@
  "render.category_paint": "Sơn",
  "render.category_plastic": "Nhựa",
  "render.category_wood": "Gỗ",
-  "render.caustics_area_lights": "Tụ quang từ đèn diện tích",
  "render.caustics_depth": "Độ sâu đường tụ quang",
  "render.caustics_enable": "Tụ quang qua kính từ nguồn điểm và nguồn định hướng",
-  "render.caustics_environment": "Tụ quang từ ánh sáng môi trường",
  "render.caustics_help": "Số photon điều chỉnh nhiễu và khối lượng tính toán. Bán kính thu thập đánh đổi chi tiết sắc nét để có ước lượng mượt hơn. CPU cần chiếu sáng gián tiếp.",
  "render.caustics_path_required": "Tụ quang trên CPU cần chiếu sáng gián tiếp.",
  "render.caustics_photons": "Số photon",
@@ -3404,7 +3398,7 @@
  "render.cpu_opaque_required": "Dò tia trên CPU yêu cầu nền đục. Hãy bỏ chọn 'Nền trong suốt' để tiếp tục.",
  "render.cpu_options_pending": "Bảng điều khiển CPU này chưa hỗ trợ chỉnh sửa tự phát xạ, hiệu ứng bề mặt, thủy tinh hoặc bất đẳng hướng. Hãy xóa các tùy chọn API đó trước khi sử dụng.",
  "render.cpu_path_depth": "Độ sâu đường truyền",
-  "render.cpu_path_help": "Tính ánh sáng phản xạ giữa các bề mặt đục và truyền qua các hình kính được hỗ trợ. Cần kết xuất lũy tiến và bóng dò tia. Độ sâu đường đi đếm các bề mặt được chiếu sáng, ranh giới kính và các sự kiện tán xạ từ giao điểm đầu tiên (1–64). Độ sâu 1 chỉ chiếu sáng trực tiếp bề mặt đục; giá trị cao hơn cho phép thêm lần phản xạ hoặc xuyên kính và có thể lâu hơn. Tắt Chiếu sáng gián tiếp để dùng phản xạ tùy chỉnh hoặc dị hướng.",
+  "render.cpu_path_help": "Tính ánh sáng phản xạ giữa các bề mặt đục và truyền qua các hình kính được hỗ trợ. Cần kết xuất lũy tiến và bóng dò tia. Độ sâu đường đi đếm các bề mặt được chiếu sáng, ranh giới kính và các sự kiện tán xạ từ giao điểm đầu tiên (1–16). Độ sâu 1 chỉ chiếu sáng trực tiếp bề mặt đục; giá trị cao hơn cho phép thêm lần phản xạ hoặc xuyên kính và có thể lâu hơn. Tắt Chiếu sáng gián tiếp để dùng phản xạ tùy chỉnh hoặc dị hướng.",
  "render.cpu_path_lighting": "Chiếu sáng gián tiếp",
  "render.cpu_path_optics_reason": "Các thiết lập được giữ nguyên. Tắt Chiếu sáng gián tiếp để dùng phản xạ tùy chỉnh hoặc dị hướng.",
  "render.cpu_point": "Nguồn sáng điểm",
@@ -3444,12 +3438,6 @@
  "render.cpu_subsurface_denoise_reason": "Tán xạ bên trong kính trên CPU cần tắt Khử nhiễu. Các cài đặt được giữ nguyên.",
  "render.cpu_subsurface_help": "Tán xạ đổi hướng ánh sáng bên trong kính kín. Tốc độ dương cần Chiếu sáng gián tiếp và tắt Khử nhiễu. Tốc độ là số va chạm mỗi mm; 0 không thêm tán xạ. Độ lệch hướng dương ưu tiên phía trước, âm ưu tiên phía sau.",
  "render.cpu_summary": "Dò tia CPU · phản xạ · HDR · nguồn sáng định hướng và điểm",
-  "render.cpu_threads": "Luồng CPU",
-  "render.cpu_threads_auto": "Tự động",
-  "render.cpu_threads_custom": "Tùy chỉnh",
-  "render.cpu_threads_help": "Chế độ tự động dùng các luồng CPU khả dụng. Một luồng chạy tuần tự. Nhiều luồng hơn có thể cần nhiều bộ nhớ hơn.",
-  "render.cpu_threads_single": "Một luồng",
-  "render.cpu_threads_web": "Kết xuất trong trình duyệt dùng một luồng phối hợp. Lựa chọn luồng đã lưu cho ứng dụng máy tính được giữ nguyên.",
  "render.cpu_transparent_help": "PNG trong suốt loại bỏ nền và giữ độ phủ ở biên. Độ đục của thân và mặt phải giữ ở 100%.",
  "render.cpu_volume_enable_path": "Bật chiếu sáng gián tiếp",
  "render.cpu_volume_enable_path_plan": "Dò tia CPU · độ sâu đường đi {depth} · {spp} mẫu/pixel · hạt giống {seed} · bóng dò tia. Giữ nguyên khí quyển và ngân sách ảnh đã đặt.",
@@ -3458,40 +3446,6 @@
  "render.cpu_volume_method_incompatible": "Không thể chuyển các thiết lập đèn, lấy mẫu hoặc khí quyển này sang phương pháp này. Thiết lập của bạn được giữ nguyên.",
  "render.cpu_volume_path_required": "Bật chiếu sáng gián tiếp để dùng Khí quyển trên CPU.",
  "render.cpu_warm_cool": "Ấm và lạnh",
-  "render.denoise_class_background": "Bỏ qua: nền",
-  "render.denoise_class_coverage": "Bỏ qua: độ phủ một phần",
-  "render.denoise_class_degenerate": "Bỏ qua: đường truyền suy biến",
-  "render.denoise_class_depth": "Bỏ qua: giới hạn độ sâu đường truyền",
-  "render.denoise_class_emitter": "Bỏ qua: nguồn phát sáng",
-  "render.denoise_class_exit": "Bỏ qua: điểm thoát không tương thích",
-  "render.denoise_class_identity": "Bỏ qua: giới hạn định danh hướng dẫn",
-  "render.denoise_class_lens": "Bỏ qua: độ sâu trường ảnh",
-  "render.denoise_class_material": "Bỏ qua: vật liệu không hỗ trợ",
-  "render.denoise_class_nested": "Bỏ qua: môi trường lồng nhau",
-  "render.denoise_class_optical": "Đủ điều kiện: bề mặt qua khúc xạ",
-  "render.denoise_class_reflection": "Bỏ qua: điểm cuối phản xạ",
-  "render.denoise_class_surface": "Đủ điều kiện: bề mặt",
-  "render.denoise_class_tir": "Bỏ qua: phản xạ toàn phần",
-  "render.denoise_class_transmission": "Bỏ qua: truyền qua tiếp",
-  "render.denoise_class_unavailable": "Bỏ qua: không có dữ liệu hướng dẫn",
-  "render.denoise_class_volume": "Bỏ qua: tán xạ thể tích",
-  "render.denoise_diagnostics_counts": "Đủ điều kiện: {eligible} · Bỏ qua: {skipped}",
-  "render.denoise_diagnostics_enable": "Thu thập chẩn đoán khử nhiễu",
-  "render.denoise_diagnostics_grid": "Số pixel ở kích thước nội bộ {width} × {height}.",
-  "render.denoise_diagnostics_help": "Thu thập số pixel đủ điều kiện và bị bỏ qua ngay cả khi tắt khử nhiễu. Số lượng dựa trên kích thước kết xuất nội bộ; mặt nạ dùng kích thước đầu ra.",
-  "render.denoise_diagnostics_title": "Chẩn đoán khử nhiễu",
-  "render.denoise_export_mask": "Xuất mặt nạ PNG",
-  "render.denoise_firefly": "Giảm các pixel sáng đơn lẻ",
-  "render.denoise_format_mask": "PNG mặt nạ",
-  "render.denoise_mask_copy_help": "Xuất mặt nạ khử nhiễu dưới dạng PNG, hoặc quay lại ảnh đã kết xuất để sao chép.",
-  "render.denoise_mask_unavailable": "Bật chẩn đoán khử nhiễu và kết xuất ảnh để kiểm tra mặt nạ.",
-  "render.denoise_optical_filter": "Lọc gương và kính",
-  "render.denoise_optical_filter_help": "Lọc ánh sáng phản xạ và truyền qua đủ điều kiện. Tắt để chỉ khử nhiễu các bề mặt không trong suốt.",
-  "render.denoise_passes": "Số lượt lọc",
-  "render.denoise_settings_help": "Nhiều lượt lọc hơn làm mịn vùng rộng hơn. Cường độ điều chỉnh mức lọc áp dụng trong mỗi lượt. Các đường truyền quang học không được hỗ trợ vẫn không được lọc.",
-  "render.denoise_strength": "Cường độ khử nhiễu",
-  "render.denoise_view_image": "Ảnh đã kết xuất",
-  "render.denoise_view_mask": "Mặt nạ khử nhiễu",
  "render.diag_bodies": "Số khối hiển thị",
  "render.diag_job_details": "Chi tiết tác vụ đã ghi nhận",
  "render.diag_last_check": "Lần kiểm tra sơ bộ gần nhất",
@@ -4046,8 +4000,6 @@
  "render.material_transient": "Ghi đè quang học tạm thời cho tab tài liệu này. Chúng không được lưu trong thiết kế, thiết lập kết xuất hoặc thư viện vật liệu.",
  "render.material_v_up": "Trục V kết cấu hướng lên trên trong ảnh",
  "render.material_weight": "Trọng số lớp phủ bóng (0–1)",
-  "render.metal_energy_compensation": "Khôi phục phản xạ của kim loại nhám",
-  "render.metal_energy_compensation_help": "Bù ánh sáng thất thoát giữa các vi diện của kim loại nhám. Kết xuất CPU cần chiếu sáng gián tiếp.",
  "render.method_cpu": "Dò tia trên CPU",
  "render.method_gpu": "Dò đường truyền tia trên GPU (Path Tracing)",
  "render.method_limit_raster": "Quét mảng (Raster) dùng bản xem trước studio đục cố định. Chọn phương thức dò tia rõ ràng để dùng các điều khiển quang học được hỗ trợ.",
@@ -4176,8 +4128,6 @@
  "render.quality_denoise_on": "Giảm nhiễu: Bật",
  "render.quality_draft": "Bản nháp",
  "render.quality_high": "Cao",
-  "render.quality_legacy_samples": "Giá trị đã lưu: {samples} mẫu/pixel. Lựa chọn mới được giới hạn ở {maximum} mẫu/pixel.",
-  "render.quality_preset_limit": "Thiết lập sẵn này vượt quá giới hạn 16384 mẫu/pixel. Hãy chọn số mẫu tối đa là 16384.",
  "render.quality_projection_help": "Bản xem xét này chỉ thay đổi độ phân giải, ngân sách mẫu, độ sâu đường đi, hạt giống và giảm nhiễu. Các thiết lập khác được giữ nguyên; ngân sách không chứng nhận ảnh đã hội tụ.",
  "render.quality_review": "Xem xét định mức lấy mẫu",
  "render.quality_summary": "{width} × {height} · {samples} mẫu · độ sâu {depth} · hạt giống {seed} · {denoise}",
@@ -4325,7 +4275,6 @@
  "render.show_shots_label": "Hiện dải cảnh chụp",
  "render.size_4k": "4K",
  "render.size_4k_uhd": "4K UHD",
-  "render.size_8k_uhd": "8K UHD",
  "render.size_custom": "Tùy chỉnh…",
  "render.size_full_hd": "Full HD",
  "render.size_hd": "HD",
@@ -4488,11 +4437,6 @@
  "render.subsurface_enable": "Bước đi ngẫu nhiên tán xạ bên trong",
  "render.subsurface_help": "Chỉ dành cho chất điện môi kín. Hệ số tán xạ và hấp thụ RGB là các hệ số riêng biệt trên mỗi mm. Tia sáng tán xạ bên trong hình học thực tế, sau đó khúc xạ hoặc phản xạ tại ranh giới. Hãy tắt bóng đổ thẳng, khử nhiễu bề mặt và thể tích bên ngoài; dùng một phân tầng Fresnel. Đây không phải bộ đổ bóng khuếch tán, lưới mật độ hay vật liệu đo đạc. Môi trường đậm đặc có thể cần nhiều mẫu và độ sâu tia lớn hơn.",
  "render.subsurface_rate": "Tần suất va chạm tán xạ",
-  "render.supersampling": "Lấy mẫu siêu phân giải",
-  "render.supersampling_dimensions": "Kết xuất ở {width} × {height} rồi thu nhỏ về {output_width} × {output_height}. Sử dụng số pixel gấp bốn lần.",
-  "render.supersampling_help": "Kết xuất với chiều rộng và chiều cao gấp đôi, rồi thu nhỏ trong không gian ánh sáng tuyến tính. Kích thước đầu ra không đổi.",
-  "render.supersampling_off": "Tắt",
-  "render.supersampling_x2": "2×",
  "render.surface_import.author": "Tác giả",
  "render.surface_import.busy": "Đang nhập ảnh…",
  "render.surface_import.complete": "Chọn ảnh rồi nhập tác giả, nguồn và giấy phép.",
@@ -4506,8 +4450,6 @@
  "render.surface_import.saved_cpu": "Lưu bản đồ để dùng khi kết xuất bằng CPU.",
  "render.surface_import.source": "Nguồn",
  "render.surface_import.title": "Nhập ảnh",
-  "render.texture_filtering": "Lọc chi tiết kết cấu",
-  "render.texture_filtering_help": "Dùng các mức mip và lọc bất đẳng hướng để giảm răng cưa khi thu nhỏ kết cấu. Tốn thêm bộ nhớ; tắt để giữ cách lọc trước đây.",
  "render.tone_aces_fitted": "ACES khớp",
  "render.tone_reinhard": "Reinhard",
  "render.transmission_scope": "Thủy tinh GPU hỗ trợ các môi trường rời rạc đã xác thực. Không cung cấp môi trường lồng nhau không giới hạn hay ước tính truyền dẫn không nhiễu.",
@@ -1509,7 +1509,6 @@
  "cmd.timeline_stop": "停止历史播放",
  "cmd.timeline_suppress": "抑制特征",
  "cmd.ui.assistant": "切换助手显示",
-  "cmd.ui.palette": "搜索命令",
  "cmd.view.navigator": "自定义视图导航器",
  "cmd.view.render_browser": "渲染浏览器",
  "cmd.view.render_dock": "移动渲染停靠面板",
@@ -2432,7 +2431,6 @@
  "parts.dimension.width": "宽度",
  "parts.family.bearing": "深沟球轴承（外形）",
  "parts.family.button_head_cap_screw": "圆头内六角螺钉",
-  "parts.family.countersunk_socket_screw": "沉头内六角螺钉",
  "parts.family.dowel_pin": "圆柱销",
  "parts.family.hex_bolt": "六角头螺栓",
  "parts.family.hex_cap_screw_inch": "六角头螺栓（英制）",
@@ -2828,8 +2826,6 @@
  "prefs.remember_dialog_values.help": "默认关闭。开启后，命令成功执行后，在关闭 SolidCraft 前，下次打开同一命令时会重用其安全的值和选项。",
  "prefs.render_legacy_image_defaults": "使用以前的渲染图像默认值",
  "prefs.render_legacy_image_defaults_help": "保留以前的手动图像流程：新设置使用 CPU 光栅渲染，CPU 光线追踪使用固定采样，并手动打开结果。进入渲染时重新适配视图，切换镜头时不恢复其保存的相机，并使用以前的取景和导航方式。禁用自动实时图像反馈。已保存的设置保持不变。",
-  "prefs.render_legacy_memory_admission": "使用以前的渲染内存检查",
-  "prefs.render_legacy_memory_admission_help": "即使估算用量超过可用RAM，也允许在固定的共享内存和主机内存限额内进行原生渲染。设备限制和内存分配检查仍然适用。",
  "prefs.render_previous_geometry_budget": "使用先前的渲染预览几何内存预算",
  "prefs.render_previous_geometry_budget_help": "恢复先前的固定几何内存上限（64位桌面为512 MiB，其他平台为128 MiB），替代基于设备的预算。",
  "prefs.reports_saved": "已保存 {n} 份",
@@ -3224,10 +3220,8 @@
  "render.category_paint": "涂漆",
  "render.category_plastic": "塑料",
  "render.category_wood": "木材",
-  "render.caustics_area_lights": "面光源焦散",
  "render.caustics_depth": "焦散路径深度",
  "render.caustics_enable": "点光源和方向光的玻璃焦散",
-  "render.caustics_environment": "环境光焦散",
  "render.caustics_help": "光子数控制噪点和计算量。增大收集半径可得到更平滑的估计，但会损失细节。CPU需要间接照明。",
  "render.caustics_path_required": "CPU焦散需要间接照明。",
  "render.caustics_photons": "光子数",
@@ -3404,7 +3398,7 @@
  "render.cpu_opaque_required": "CPU 光线追踪需要不透明背景。请关闭透明背景。",
  "render.cpu_options_pending": "此CPU面板暂不支持编辑自发光、表面效果、玻璃或各向异性。使用前请清除这些API选项。",
  "render.cpu_path_depth": "路径深度",
-  "render.cpu_path_help": "计算在不透明表面之间反射并穿过受支持玻璃形状的光。需要渐进渲染和光线追踪阴影。路径深度从首次相交开始计算着色表面、玻璃边界和散射事件（1–64）。深度 1 只计算不透明表面的直接照明；更高的值允许更多反射或玻璃穿越，也可能耗时更长。使用自定义反射或各向异性时，请关闭间接照明。",
+  "render.cpu_path_help": "计算在不透明表面之间反射并穿过受支持玻璃形状的光。需要渐进渲染和光线追踪阴影。路径深度从首次相交开始计算着色表面、玻璃边界和散射事件（1–16）。深度 1 只计算不透明表面的直接照明；更高的值允许更多反射或玻璃穿越，也可能耗时更长。使用自定义反射或各向异性时，请关闭间接照明。",
  "render.cpu_path_lighting": "间接照明",
  "render.cpu_path_optics_reason": "设置会保留。使用自定义反射或各向异性时，请关闭间接照明。",
  "render.cpu_point": "点光源",
@@ -3444,12 +3438,6 @@
  "render.cpu_subsurface_denoise_reason": "CPU 内部散射需要关闭降噪。设置会保留。",
  "render.cpu_subsurface_help": "散射会改变闭合玻璃内部的光线方向。正散射率需要开启间接光照并关闭降噪。散射率表示每毫米的碰撞次数；0 不增加散射。方向偏置为正时偏向前方，为负时偏向后方。",
  "render.cpu_summary": "CPU光线追踪 · 反射 · HDR · 平行光与点光源",
-  "render.cpu_threads": "CPU 工作线程",
-  "render.cpu_threads_auto": "自动",
-  "render.cpu_threads_custom": "自定义",
-  "render.cpu_threads_help": "自动模式使用可用的 CPU 工作线程。单线程按顺序执行。更多线程可能需要更多内存。",
-  "render.cpu_threads_single": "单线程",
-  "render.cpu_threads_web": "浏览器渲染使用一个协作式工作线程。已保存的桌面线程选择会保留。",
  "render.cpu_transparent_help": "透明PNG移除背景并保留边缘覆盖率。实体和面的不透明度必须保持100%。",
  "render.cpu_volume_enable_path": "启用间接照明",
  "render.cpu_volume_enable_path_plan": "CPU 光线追踪 · 路径深度 {depth} · 每像素 {spp} 个采样 · 种子 {seed} · 追踪阴影。保留已编写的大气和图像预算。",
@@ -3458,40 +3446,6 @@
  "render.cpu_volume_method_incompatible": "这些灯光、采样或大气设置无法转移到此方式。您的设置会保留。",
  "render.cpu_volume_path_required": "启用间接照明以使用 CPU 大气。",
  "render.cpu_warm_cool": "暖色与冷色",
-  "render.denoise_class_background": "已跳过：背景",
-  "render.denoise_class_coverage": "已跳过：部分覆盖",
-  "render.denoise_class_degenerate": "已跳过：退化路径",
-  "render.denoise_class_depth": "已跳过：路径深度上限",
-  "render.denoise_class_emitter": "已跳过：发光体",
-  "render.denoise_class_exit": "已跳过：不兼容的出射",
-  "render.denoise_class_identity": "已跳过：引导标识上限",
-  "render.denoise_class_lens": "已跳过：景深",
-  "render.denoise_class_material": "已跳过：不支持的材质",
-  "render.denoise_class_nested": "已跳过：嵌套介质",
-  "render.denoise_class_optical": "可滤波：折射后的表面",
-  "render.denoise_class_reflection": "已跳过：反射终点",
-  "render.denoise_class_surface": "可滤波：表面",
-  "render.denoise_class_tir": "已跳过：全内反射",
-  "render.denoise_class_transmission": "已跳过：进一步透射",
-  "render.denoise_class_unavailable": "已跳过：无引导数据",
-  "render.denoise_class_volume": "已跳过：体积散射",
-  "render.denoise_diagnostics_counts": "可滤波：{eligible} · 已跳过：{skipped}",
-  "render.denoise_diagnostics_enable": "收集降噪诊断信息",
-  "render.denoise_diagnostics_grid": "内部尺寸 {width} × {height} 下的像素计数。",
-  "render.denoise_diagnostics_help": "即使关闭降噪，也会收集可滤波和跳过的像素数量。计数基于内部渲染尺寸；蒙版使用输出尺寸。",
-  "render.denoise_diagnostics_title": "降噪诊断",
-  "render.denoise_export_mask": "导出蒙版 PNG",
-  "render.denoise_firefly": "抑制孤立亮点",
-  "render.denoise_format_mask": "蒙版 PNG",
-  "render.denoise_mask_copy_help": "将降噪蒙版导出为 PNG，或返回渲染图像后复制图像。",
-  "render.denoise_mask_unavailable": "启用降噪诊断并渲染图像后，即可查看其蒙版。",
-  "render.denoise_optical_filter": "过滤镜面和玻璃",
-  "render.denoise_optical_filter_help": "对符合条件的反射光和透射光进行过滤。关闭后，仅对不透明表面降噪。",
-  "render.denoise_passes": "滤波轮数",
-  "render.denoise_settings_help": "更多轮次会平滑更大范围。强度控制每轮滤波的应用程度。不支持的光路保持未滤波状态。",
-  "render.denoise_strength": "降噪强度",
-  "render.denoise_view_image": "渲染图像",
-  "render.denoise_view_mask": "降噪蒙版",
  "render.diag_bodies": "可见实体数",
  "render.diag_job_details": "已捕获任务详情",
  "render.diag_last_check": "上次预检",
@@ -4046,8 +4000,6 @@
  "render.material_transient": "此文档标签页的临时光学设置，不保存到设计、渲染设置或材质库中。",
  "render.material_v_up": "纹理 V 轴指向图像上方",
  "render.material_weight": "涂层权重（0–1）",
-  "render.metal_energy_compensation": "恢复粗糙金属的反射",
-  "render.metal_energy_compensation_help": "补偿粗糙金属微表面之间损失的光能。CPU 渲染需要间接照明。",
  "render.method_cpu": "CPU 光线追踪",
  "render.method_gpu": "GPU 路径追踪",
  "render.method_limit_raster": "光栅化使用固定的不透明工作室预览；要使用受支持的光学控件，请明确选择光线追踪方式。",
@@ -4176,8 +4128,6 @@
  "render.quality_denoise_on": "降噪：开启",
  "render.quality_draft": "草稿",
  "render.quality_high": "高",
-  "render.quality_legacy_samples": "已保存的值：{samples} spp。新选择的上限为 {maximum} spp。",
-  "render.quality_preset_limit": "此预设超过 16384 spp 的选择上限。请选择不超过 16384 的采样数。",
  "render.quality_projection_help": "此检查仅更改分辨率、采样预算、路径深度、种子和降噪。其他设置保持不变，预算不保证收敛。",
  "render.quality_review": "审阅采样预算",
  "render.quality_summary": "{width} × {height} · {samples} 次采样 · 深度 {depth} · 种子 {seed} · {denoise}",
@@ -4325,7 +4275,6 @@
  "render.show_shots_label": "显示镜头条",
  "render.size_4k": "4K",
  "render.size_4k_uhd": "4K 超高清",
-  "render.size_8k_uhd": "8K UHD",
  "render.size_custom": "自定义…",
  "render.size_full_hd": "全高清",
  "render.size_hd": "HD",
@@ -4488,11 +4437,6 @@
  "render.subsurface_enable": "内部散射随机游走",
  "render.subsurface_help": "仅适用于封闭介质。散射和RGB吸收使用独立的每毫米系数。路径在实际几何内部散射，并在边界折射或反射。关闭直线透射阴影、表面降噪和外部体积；使用一个菲涅耳分层。这不是扩散着色器、密度网格或实测材料。高密度可能需要更多样本和路径深度。",
  "render.subsurface_rate": "散射碰撞率",
-  "render.supersampling": "超采样",
-  "render.supersampling_dimensions": "以 {width} × {height} 渲染，再缩小至 {output_width} × {output_height}。使用四倍像素。",
-  "render.supersampling_help": "以双倍宽度和高度渲染，然后在线性光空间中缩小。输出尺寸保持不变。",
-  "render.supersampling_off": "关闭",
-  "render.supersampling_x2": "2×",
  "render.surface_import.author": "作者",
  "render.surface_import.busy": "正在导入图像…",
  "render.surface_import.complete": "请选择图像并填写作者、来源和许可。",
@@ -4506,8 +4450,6 @@
  "render.surface_import.saved_cpu": "保存贴图以用于 CPU 渲染。",
  "render.surface_import.source": "来源",
  "render.surface_import.title": "导入图像",
-  "render.texture_filtering": "过滤纹理细节",
-  "render.texture_filtering_help": "使用多级纹理和各向异性过滤，减少纹理缩小时的锯齿。需要更多内存；关闭时保留原有过滤方式。",
  "render.tone_aces_fitted": "ACES 拟合",
  "render.tone_reinhard": "Reinhard",
  "render.transmission_scope": "GPU 玻璃支持经过验证且互不相交的介质；不支持任意嵌套介质，也不提供无噪声透射估计器。",
@@ -21,7 +21,7 @@ struct U {
    model: mat4x4<f32>,
    tint: vec4<f32>,   // xyz added to a whole hovered body's colour before lighting
    sel: vec4<f32>,    // xyz a whole selected body's colour before lighting
-    // the section hatch colours by part (`crate::hatch`), the first the cap's own
+    // the section hatch colours by part (`solidcraft_render::hatch`), the first the cap's own
    hatch: array<vec4<f32>, 3>,
    product_lights_meta: vec4<f32>, // explicit preview flag and bounded count
    product_lights: array<vec4<f32>,84>, // position/kind, radiance, axis/cone, attenuation
@@ -9,9 +9,7 @@ license.workspace = true
 workspace = true

 [dependencies]
-solidcraft-viewport = { workspace = true }
 solidcore-record = { workspace = true }
-solidcore-tess = { workspace = true }
 solidcraft-color = { workspace = true }
 solidcraft-geom = { workspace = true }
 solidcraft-sketch = { workspace = true }
@@ -51,7 +51,7 @@ impl Look {
    pub fn custom(color: [u8; 3], opacity: f64) -> Look {
        Look { name: "Custom".into(), color, opacity: opacity.clamp(0.0, 1.0), pbr: None }
    }
-    pub fn opaque_surface(&self) -> crate::Result<Option<solidcraft_viewport::surface::OpaqueSurface>> {
+    pub fn opaque_surface(&self) -> crate::Result<Option<solidcraft_render::surface::OpaqueSurface>> {
        if self.pbr.is_some() && self.opacity != 1.0 {
            return Err(crate::DocError::Invalid("opaque PBR requires opacity 1".into()));
        }
@@ -1,64 +0,0 @@
-//! CSV text fields, as every SolidCraft export writes them and the parameter import reads them.
-//!
-//! A spreadsheet reads a field that starts with `=`, `+`, `-` or `@` as a formula, so a part
-//! numbered `=1+1` would show `2`. A field like that is written with a `'` first, which
-//! spreadsheets show as text (OWASP's CSV Injection page). [`unguard`] takes the `'` off again
-//! when SolidCraft reads its own file back.
-
-use std::borrow::Cow;
-
-/// The first characters that make a spreadsheet read a field as a formula, from OWASP's list.
-/// The full-width forms act as formulas in some locales, such as Japanese, so they are here too.
-const FORMULA_STARTS: [char; 11] = ['=', '+', '-', '@', '\t', '\r', '\n', '＝', '＋', '－', '＠'];
-
-/// What makes a field need quotes: a separator (`;` as well as `,`, since a spreadsheet set to
-/// `;` splits there and the new cell could start a formula), a quote, a tab or a line break.
-const NEEDS_QUOTES: [char; 6] = [',', ';', '"', '\t', '\r', '\n'];
-
-/// A text field, quoted only when it needs quotes.
-pub fn field(text: &str) -> String {
-    let text = guard(text);
-    if text.contains(NEEDS_QUOTES) { quote(&text) } else { text.into_owned() }
-}
-
-/// A text field, always in quotes.
-pub fn quoted(text: &str) -> String {
-    quote(&guard(text))
-}
-
-/// A field as SolidCraft wrote it, with the `'` that [`field`] or [`quoted`] put first taken off.
-/// A field without one is returned as it is.
-pub fn unguard(text: &str) -> &str {
-    match text.strip_prefix('\'') {
-        Some(rest) if starts_a_formula(rest) => rest,
-        _ => text,
-    }
-}
-
-/// `text` with a `'` first when a spreadsheet would read it as a formula. A field that already
-/// starts with `'` and then a formula gets one more, so [`unguard`] gives back exactly what was
-/// written. A whole plain number (`-5`, `+1e-9`) is read as that number, not as a formula, so it
-/// is left as it is.
-fn guard(text: &str) -> Cow<'_, str> {
-    if starts_a_formula(text) && !plain_number(text) { Cow::Owned(format!("'{text}")) } else { Cow::Borrowed(text) }
-}
-
-/// Whether `text`, after any `'` and spaces it starts with, starts as a formula does. Spaces count
-/// because a spreadsheet may take them off as it reads (LibreOffice's "Trim spaces").
-fn starts_a_formula(text: &str) -> bool {
-    text.trim_start_matches(['\'', ' ']).starts_with(FORMULA_STARTS)
-}
-
-/// A finite number and nothing else, spaces included. Rust's `f64` parsing also takes `inf`,
-/// `infinity` and `NaN` in any case, and none of them is finite.
-fn plain_number(text: &str) -> bool {
-    text.parse::<f64>().is_ok_and(f64::is_finite)
-}
-
-fn quote(text: &str) -> String {
-    format!("\"{}\"", text.replace('"', "\"\""))
-}
-
-#[cfg(test)]
-#[path = "csv_tests.rs"]
-mod tests;
@@ -1,89 +0,0 @@
-use super::{FORMULA_STARTS, NEEDS_QUOTES, field, quoted, unguard};
-
-#[test]
-fn a_field_a_spreadsheet_would_run_gets_an_apostrophe() {
-    for (text, written) in [
-        ("=1+1", "'=1+1"),
-        ("+2 for the fit", "'+2 for the fit"),
-        ("-5 mm shim", "'-5 mm shim"),
-        ("@SUM(1,1)", "\"'@SUM(1,1)\""),
-        ("＝1+1", "'＝1+1"),
-        ("＋2", "'＋2"),
-        ("－5", "'－5"),
-        ("＠x", "'＠x"),
-        ("\tx", "\"'\tx\""),
-        ("\rx", "\"'\rx\""),
-        ("\nx", "\"'\nx\""),
-        // Already an apostrophe, then a formula: one more, so the import gives back the original.
-        ("'=x", "''=x"),
-        ("''-x", "'''-x"),
-        // Spaces before a formula count: a spreadsheet may take them off.
-        (" =x", "' =x"),
-        (" -5", "' -5"),
-        ("' @x", "'' @x"),
-    ] {
-        assert_eq!(field(text), written, "{text:?}");
-        assert_eq!(unguard(written.trim_matches('"')), text, "{written:?}");
-    }
-}
-
-#[test]
-fn a_whole_plain_number_stays_a_number() {
-    for number in ["-5", "+5", "-0", "0", "1e-9", "-1.5E+3", ".5", "-.5", "5.", "+1e5", "-12.000000000"] {
-        assert_eq!(field(number), number, "{number:?}");
-    }
-    // Not plain numbers: Rust's parse takes the words, spaces aren't a number's, and one too large isn't finite.
-    for text in ["-inf", "+inf", "-infinity", "-NaN", "+nan", "-", "+", "--5", "-5 mm", "-5 ", "-1e400", "-0x10", "-5,5"] {
-        assert!(field(text).trim_start_matches('"').starts_with('\''), "{text:?}: {}", field(text));
-    }
-}
-
-#[test]
-fn other_fields_are_left_as_they_are() {
-    for text in ["", "Plate", "PL-100", "a=b", "x+1", "'quoted' word", "'", "''", "5 mm", " 5", "é=", "μ-5"] {
-        assert_eq!(field(text), text, "{text:?}");
-        assert_eq!(unguard(text), text, "{text:?}");
-    }
-}
-
-#[test]
-fn a_field_with_a_separator_a_quote_or_a_break_is_quoted() {
-    assert_eq!(field("Plate, 3 mm"), "\"Plate, 3 mm\"");
-    assert_eq!(field("one; two"), "\"one; two\"");
-    assert_eq!(field("Pin \"short\""), "\"Pin \"\"short\"\"\"");
-    assert_eq!(field("a\tb"), "\"a\tb\"");
-    assert_eq!(field("line one\r\nline two"), "\"line one\r\nline two\"");
-    assert_eq!(quoted("Plate"), "\"Plate\"");
-    assert_eq!(quoted("=A1"), "\"'=A1\"");
-    assert_eq!(quoted("-5"), "\"-5\"");
-}
-
-/// Random fields from an alphabet heavy in what matters: every formula start, apostrophes, quotes,
-/// separators, spaces, digits and the letters of `inf` and `NaN`. Each one reads back exactly, never starts
-/// a formula once written unless it is a whole number, and is quoted whenever it holds a separator.
-#[test]
-fn fuzz_every_field_reads_back_and_never_starts_a_formula() {
-    let mut alphabet: Vec<char> = "'''\"\";,.eE0123456789 infaNxé".chars().collect();
-    alphabet.extend(FORMULA_STARTS);
-    let mut seed: u64 = 0x9e37_79b9_7f4a_7c15;
-    let mut rnd = move || {
-        seed ^= seed << 13;
-        seed ^= seed >> 7;
-        seed ^= seed << 17;
-        seed
-    };
-    for _ in 0..50_000 {
-        let n = (rnd() % 12) as usize;
-        let text: String = (0..n).filter_map(|_| alphabet.get((rnd() % alphabet.len() as u64) as usize)).collect();
-        let written = field(&text);
-        let inner = match written.strip_prefix('"').and_then(|w| w.strip_suffix('"')) {
-            Some(inner) => inner.replace("\"\"", "\""),
-            None => written.clone(),
-        };
-        assert_eq!(unguard(&inner), text, "{text:?} written as {written:?}");
-        let bare = inner.trim_start_matches(' ');
-        assert!(!bare.starts_with(FORMULA_STARTS) || text.parse::<f64>().is_ok_and(f64::is_finite), "{text:?} written as {written:?}");
-        assert!(!text.contains(NEEDS_QUOTES) || written.starts_with('"'), "{text:?} written as {written:?}");
-        assert_eq!(quoted(&text), format!("\"{}\"", inner.replace('"', "\"\"")), "{text:?}");
-    }
-}
@@ -1951,8 +1951,7 @@ pub enum FeatureKind {
        #[serde(default, skip_serializing_if = "Vec::is_empty")]
        skip: Vec<u64>,
    },
-    /// Rebuild an upstream mesh as a solid: analytic planar/cylindrical faces for a
-    /// constant-section part, planar facets for any other closed mesh.
+    /// Rebuild an upstream constant-section mesh with analytic planar/cylindrical faces.
    MeshConvert {
        body: BodyName,
        #[walk(length = "Tolerance")]
@@ -2295,10 +2294,6 @@ pub struct MeshData {
    pub positions: std::sync::Arc<[f64]>,
    /// Three vertex indices per triangle.
    pub triangles: std::sync::Arc<[u32]>,
-    /// Unit shading normals, x/y/z for each triangle corner. Empty means flat shading.
-    /// Independent of the welded positions and the geometric boundary certificate.
-    #[serde(default, skip_serializing_if = "<[f64]>::is_empty")]
-    pub corner_normals: std::sync::Arc<[f64]>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub color: Option<[f32; 3]>,
 }
@@ -2314,36 +2309,6 @@ impl PartialEq for MeshData {
            && self.color == other.color
            && (Arc::ptr_eq(&self.triangles, &other.triangles) || self.triangles == other.triangles)
            && (Arc::ptr_eq(&self.positions, &other.positions) || self.positions == other.positions)
-            && (Arc::ptr_eq(&self.corner_normals, &other.corner_normals) || self.corner_normals == other.corner_normals)
-    }
-}
-
-impl MeshData {
-    /// Explicitly generate crease-aware shading for an existing imported source.
-    /// Coordinates, triangle indices, topology and body identity remain unchanged.
-    pub fn generate_crease_normals(&mut self, angle_degrees: f64) -> crate::Result<()> {
-        if !angle_degrees.is_finite()
-            || !(0.0..=180.0).contains(&angle_degrees)
-            || !self.positions.len().is_multiple_of(3)
-            || !self.triangles.len().is_multiple_of(3)
-        {
-            return Err(crate::DocError::Invalid("mesh crease angle must be between 0 and 180 degrees with complete triangles".into()));
-        }
-        let allocation = |_| crate::DocError::Invalid("could not reserve mesh normal generation".into());
-        let mut positions = Vec::new();
-        positions.try_reserve_exact(self.positions.len() / 3).map_err(allocation)?;
-        positions.extend(self.positions.as_chunks::<3>().0.iter().map(|p| solidcore_record::Vec3::new(p[0], p[1], p[2])));
-        let mut triangles = Vec::new();
-        triangles.try_reserve_exact(self.triangles.len() / 3).map_err(allocation)?;
-        triangles.extend_from_slice(self.triangles.as_chunks::<3>().0);
-        let mesh = solidcraft_geom::Mesh { positions, triangles, ..Default::default() };
-        let normals = mesh.crease_corner_normals(angle_degrees.to_radians(), None).map_err(crate::DocError::Invalid)?;
-        let count = normals.len().checked_mul(9).ok_or_else(|| crate::DocError::Invalid("mesh normal count overflow".into()))?;
-        let mut values = Vec::new();
-        values.try_reserve_exact(count).map_err(allocation)?;
-        values.extend(normals.iter().flatten().flat_map(|n| [n.x, n.y, n.z]));
-        self.corner_normals = values.into();
-        Ok(())
    }
 }

@@ -3963,35 +3928,12 @@ impl Document {
    }

    /// A component by id or name (0 / "root" is the design itself). A component that carries the
-    /// design's own name is found by that name: the design is still named by 0 / "root". An
-    /// ambiguous name finds nothing; commands use [`Self::resolve_component`] to report why.
+    /// design's own name is found by that name: the design is still named by 0 / "root".
    pub fn find_component(&self, key: &str) -> Option<u64> {
-        self.resolve_component(key).ok().flatten()
-    }
-
-    /// Resolve a component reference without choosing between components with the same name.
-    /// Canonical numeric ids (including ids sent as strings by the UI) and the root aliases
-    /// take priority over names. Other numeric spellings, such as `01`, remain names.
-    pub fn resolve_component(&self, key: &str) -> Result<Option<u64>> {
        if key == "0" || key.eq_ignore_ascii_case("root") {
-            return Ok(Some(0));
+            return Some(0);
        }
-        if let Ok(id) = key.parse::<u64>()
-            && id.to_string() == key
-            && self.components.iter().any(|component| component.id == id)
-        {
-            return Ok(Some(id));
-        }
-        let mut matches = self.components.iter().filter(|component| component.name == key);
-        let Some(first) = matches.next() else { return Ok((key == self.name).then_some(0)) };
-        if let Some(second) = matches.next() {
-            let mut ids = vec![first.id, second.id];
-            ids.extend(matches.map(|component| component.id));
-            ids.sort_unstable();
-            let ids = ids.iter().map(u64::to_string).collect::<Vec<_>>().join(", ");
-            return Err(DocError::Invalid(format!("ambiguous component `{key}`; matching IDs: {ids}; use a numeric component ID")));
-        }
-        Ok(Some(first.id))
+        self.components.iter().find(|c| c.id.to_string() == key || c.name == key).map(|c| c.id).or_else(|| (key == self.name).then_some(0))
    }

    /// Read a design file's JSON (any format this build knows; older ones are upgraded).
@@ -55,9 +55,6 @@ pub struct ModelBody {
    /// The display plan (none when the body has no plan: a mesh body, or one the planner
    /// refuses), shared like the mesh. A GPU viewport draws it.
    plan: Arc<[OnceLock<Option<Arc<TessPlan>>>; 4]>,
-    /// Each display plan in the form the GPU evaluates ([`crate::gpu_plan`]), made once from it
-    /// and shared like it, so the viewport sees the same allocation every frame.
-    gpu_plan: Arc<[OnceLock<Option<Arc<solidcore_tess::TessPlan>>>; 4]>,
    /// The plan evaluated on the CPU (none without a plan), shared like the mesh: the triangles a
    /// GPU viewport draws, so a highlight over a face lies exactly on it.
    plan_mesh: Arc<[OnceLock<Option<Arc<Mesh>>>; 4]>,
@@ -107,7 +104,6 @@ impl ModelBody {
            mirrored_mesh: None,
            opposite_hand: Arc::new(OnceLock::new()),
            plan: Arc::new(Default::default()),
-            gpu_plan: Arc::new(Default::default()),
            plan_mesh: Arc::new(Default::default()),
            key: 0,
            names: Default::default(),
@@ -232,13 +228,6 @@ impl ModelBody {
        }
    }

-    /// The display plan at a given display quality in the form the GPU evaluates
-    /// ([`crate::gpu_plan`]): made once per level from [`ModelBody::display_plan_at`], the same
-    /// allocation on every call.
-    pub fn gpu_plan_at(&self, q: crate::display_quality::DisplayQuality) -> Option<Arc<solidcore_tess::TessPlan>> {
-        self.gpu_plan.get(q.index())?.get_or_init(|| self.display_plan_at(q).map(|plan| Arc::new(crate::gpu_plan::gpu_plan(&plan)))).clone()
-    }
-
    /// The display plan's mesh, evaluated on the CPU once per level: the same triangles a GPU
    /// viewport evaluates and draws for this body. Highlights over a face drawn from the plan use
    /// it, since the reference mesh ([`ModelBody::mesh`]) triangulates the face differently and
@@ -365,14 +354,13 @@ impl ModelBody {
        self.plan_mesh_at(q)
    }

-    /// The display plan in the form the GPU evaluates ([`ModelBody::gpu_plan_at`]) and its mesh
-    /// `k` steps finer than `q` (view-dependent refinement, #1320;
+    /// The display plan and its mesh `k` steps finer than `q` (view-dependent refinement, #1320;
    /// see [`crate::display_quality::refinement_for`]). Step 0 is the cached plan at `q`; finer
    /// steps are made on each call and kept by the viewport, which evicts them when it runs over
    /// its budget. `None` when the body has no plan at that step.
-    pub fn refined_display(&self, q: crate::display_quality::DisplayQuality, k: u8) -> Option<(Arc<solidcore_tess::TessPlan>, Arc<Mesh>)> {
+    pub fn refined_display(&self, q: crate::display_quality::DisplayQuality, k: u8) -> Option<(Arc<TessPlan>, Arc<Mesh>)> {
        if k == 0 {
-            return Some((self.gpu_plan_at(q)?, self.plan_mesh_at(q)?));
+            return Some((self.display_plan_at(q)?, self.plan_mesh_at(q)?));
        }
        let plan = match self
            .body
@@ -385,7 +373,7 @@ impl ModelBody {
            }
        };
        let mesh = self.body.mesh_of(&plan).ok()?;
-        Some((Arc::new(crate::gpu_plan::gpu_plan(&plan)), Arc::new(mesh)))
+        Some((Arc::new(plan), Arc::new(mesh)))
    }

    /// The chord tolerance of [`ModelBody::mesh`] (mm): 1/1000 of the definition's size, at least
@@ -1175,9 +1163,6 @@ pub struct Model {
    placement_local: bool,
    /// A failed sketch shown while it is edited ([`Model::hold_failed_sketch`]).
    held: Option<HeldSketch>,
-    /// The [`placement_digest`] each [`pose_only`] feature was last evaluated at, by feature id.
-    /// Their fingerprints leave it out, so a pose change doesn't reach the features after them.
-    poses: std::collections::HashMap<u64, u64>,
 }

 /// A failed sketch built for its editor (#12085): `shown` is the final state `base` with that
@@ -1239,15 +1224,12 @@ struct ImportDigests {
 struct MeshDigest {
    positions: Arc<[f64]>,
    triangles: Arc<[u32]>,
-    corner_normals: Arc<[f64]>,
    digest: u64,
 }

 impl MeshDigest {
    fn matches(&self, mesh: &crate::MeshData) -> bool {
-        Arc::ptr_eq(&self.positions, &mesh.positions)
-            && Arc::ptr_eq(&self.triangles, &mesh.triangles)
-            && Arc::ptr_eq(&self.corner_normals, &mesh.corner_normals)
+        Arc::ptr_eq(&self.positions, &mesh.positions) && Arc::ptr_eq(&self.triangles, &mesh.triangles)
    }
 }

@@ -1266,12 +1248,7 @@ impl ImportDigests {
                        .enumerate()
                        .map(|(index, mesh)| {
                            let digest = known.mesh(f.id, index, mesh).unwrap_or_else(|| mesh_content_digest(mesh));
-                            MeshDigest {
-                                positions: mesh.positions.clone(),
-                                triangles: mesh.triangles.clone(),
-                                corner_normals: mesh.corner_normals.clone(),
-                                digest,
-                            }
+                            MeshDigest { positions: mesh.positions.clone(), triangles: mesh.triangles.clone(), digest }
                        })
                        .collect();
                    out.meshes.insert(f.id, digests);
@@ -1300,9 +1277,6 @@ fn mesh_content_digest(mesh: &crate::MeshData) -> u64 {
        coordinate.to_bits().hash(&mut h);
    }
    mesh.triangles.hash(&mut h);
-    for n in mesh.corner_normals.iter() {
-        n.to_bits().hash(&mut h);
-    }
    h.finish()
 }

@@ -1394,7 +1368,6 @@ fn feature_json(f: &Feature, steps: &ImportDigests) -> String {
                digests.push(steps.mesh(f.id, index, mesh).unwrap_or_else(|| mesh_content_digest(mesh)));
                mesh.positions = Arc::from([]);
                mesh.triangles = Arc::from([]);
-                mesh.corner_normals = Arc::from([]);
            }
        }
        // Keep the complete definition (including mesh order, names and colors) without
@@ -1506,10 +1479,7 @@ fn chain_fingerprint(
    steps: &ImportDigests,
    st: Option<&ModelState>,
 ) -> u64 {
-    // A pose-only feature's placement is checked on its own ([`Model::poses`]), so moving the
-    // parts it reads doesn't change the fingerprint of every feature after it (#12139).
-    let placed = if pose_only(f) { 0 } else { placement_digest(doc, f, st) };
-    let mut fp = fingerprint(doc, prev, f, vals, rolled_back, steps) ^ placed;
+    let mut fp = fingerprint(doc, prev, f, vals, rolled_back, steps) ^ placement_digest(doc, f, st);
    // Sheet metal features also depend on the rules (and the parameters they use).
    if f.kind.is_sheet() {
        let mut h = std::collections::hash_map::DefaultHasher::new();
@@ -1823,70 +1793,6 @@ fn mirror_placements_digest(doc: &Document, f: &Feature, placements: &[Vec<u64>]
    h.finish()
 }

-/// Whether only the bodies `f` makes follow where parts are placed: a mirror of placed bodies
-/// into new bodies. A feature after it reads its copies only by naming them, so a pose change
-/// need not evaluate features that don't (#12139).
-fn pose_only(f: &Feature) -> bool {
-    matches!(&f.kind, FeatureKind::Mirror { features, bodies, placements, combine: false, .. }
-        if features.is_empty() && !bodies.is_empty() && !placements.is_empty())
-}
-
-/// The new bodies of pose-only `f`, evaluated again (to `state`) for its pose alone: the result
-/// `old` was on the same definitions and made bodies of the same names, and nothing besides.
-fn pose_moved(old: Option<&FeatureResult>, f: &Feature, fp: u64, state: &ModelState) -> Option<Vec<ModelBody>> {
-    let old = old.filter(|o| o.id == f.id && o.fingerprint == fp && !o.stale && !o.skipped && !o.unkept && o.error.is_none())?;
-    let made = |st: &ModelState| st.bodies.iter().filter(|b| b.feature == f.id).cloned().collect::<Vec<_>>();
-    let (before, after) = (made(&old.state), made(state));
-    let names = |bodies: &[ModelBody]| bodies.iter().map(|b| b.name.clone()).collect::<std::collections::BTreeSet<_>>();
-    let same = names(&before) == names(&after)
-        && old.state.bodies.len() == state.bodies.len()
-        && old.state.threads.len() == state.threads.len()
-        && old.state.sheets.len() == state.sheets.len()
-        && old.state.construct.len() == state.construct.len();
-    same.then_some(after)
-}
-
-/// `old` (a result after the moved pose-only features) with their new bodies in place of theirs.
-fn with_moved(old: &Arc<ModelState>, moved: &[(u64, Vec<ModelBody>)]) -> Arc<ModelState> {
-    let mut st = (**old).clone();
-    for b in &mut st.bodies {
-        if let Some(new) = moved.iter().filter(|(id, _)| *id == b.feature).flat_map(|(_, bodies)| bodies).find(|n| n.name == b.name) {
-            *b = new.clone();
-        }
-    }
-    Arc::new(st)
-}
-
-/// Whether `f` (starting from `st`) reads none of the bodies of `moved`: it reads no bodies, or
-/// only bodies it names or would cut or join, none of them those. Anything else (a picked face,
-/// a projection, To Object, ...) is taken as reading them.
-fn reads_none_of(f: &Feature, st: &ModelState, moved: &[(u64, Vec<ModelBody>)], components: &std::collections::HashMap<u64, u64>) -> bool {
-    if !f.face_names.is_empty() || !f.edge_names.is_empty() || !f.edge_refs.is_empty() {
-        return false;
-    }
-    let reads: Vec<String> = match &f.kind {
-        _ if placement_reuse::local_geometry(f, components) => Vec::new(),
-        FeatureKind::Sketch { plane, sketch } if sketch.links.is_empty() && sketch.wires.is_empty() && placement_reuse::local_plane(plane, 0) => {
-            Vec::new()
-        }
-        FeatureKind::Mirror { features, bodies, plane, .. } if features.is_empty() && placement_reuse::local_plane(plane, 0) => {
-            bodies.iter().map(|b| b.0.clone()).collect()
-        }
-        FeatureKind::Extrude { extent, .. } if extent.to.is_some() || extent.from.is_some() => return false,
-        FeatureKind::Revolve { to: Some(_), .. } | FeatureKind::Revolve { axis: AxisRef::Model { .. }, .. } => return false,
-        kind if drawn_tools_change_bodies(kind) => {
-            let mut reads = PlacementReads::default();
-            reads.drawn_targets(Some(st), f);
-            if reads.all {
-                return false;
-            }
-            reads.bodies.into_iter().collect()
-        }
-        _ => return false,
-    };
-    !moved.iter().flat_map(|(_, bodies)| bodies).any(|b| reads.contains(&b.name))
-}
-
 fn placement_digest(doc: &Document, f: &Feature, st: Option<&ModelState>) -> u64 {
    // No shortcut for a design without placements: its first component (placed where the
    // design is) must not change what its features read, or creating it evaluates them all.
@@ -2287,11 +2193,10 @@ impl Model {
        let mut state = self.empty.clone();
        doc.features.iter().zip(&self.results).enumerate().all(|(i, (f, r))| {
            prev = chain_fingerprint(doc, &vals, f, prev, i >= marker, &steps, Some(&state));
-            let posed = !pose_only(f) || self.poses.get(&f.id) == Some(&placement_digest(doc, f, Some(&state)));
            if !r.skipped {
                state = r.state.clone();
            }
-            r.id == f.id && r.fingerprint == prev && posed
+            r.id == f.id && r.fingerprint == prev
        })
    }

@@ -2359,10 +2264,6 @@ impl Model {
            feature_component.entry(f.id).or_insert(f.component);
        }
        let watched = crate::progress::begin(doc.features.len());
-        let mut poses = std::collections::HashMap::new();
-        // Pose-only features evaluated again for a pose change alone: their new bodies, which
-        // replace the old ones in the results reused after them (#12139).
-        let mut moved: Vec<(u64, Vec<ModelBody>)> = Vec::new();
        // The features that failed so far in this pass, by id: their names and errors (#9075).
        let mut failed: std::collections::HashMap<u64, (String, String)> = std::collections::HashMap::new();
        for (i, f) in doc.features.iter().enumerate() {
@@ -2391,12 +2292,7 @@ impl Model {
            let cancelled = watched.step(i);
            let fp = chain_fingerprint(doc, &vals, f, prev_fp, rolled_back, &self.import_digests, Some(&state));
            prev_fp = fp;
-            let pose = pose_only(f).then(|| placement_digest(doc, f, Some(&state)));
-            if let Some(pose) = pose {
-                poses.insert(f.id, pose);
-            }
-            let posed = pose.is_none_or(|pose| self.poses.get(&f.id) == Some(&pose));
-            let current = |old: &&FeatureResult| old.id == f.id && old.fingerprint == fp && !old.stale && posed;
+            let current = |old: &&FeatureResult| old.id == f.id && old.fingerprint == fp && !old.stale;
            // A state the saved model did not keep is evaluated again from the one before it; the
            // results after it that the model did keep still stand (#3220).
            let unkept = reuse && self.results.get(i).filter(current).is_some_and(|old| old.unkept);
@@ -2407,28 +2303,14 @@ impl Model {
            // has a result only while those picks are what they were.
            if reuse
                && !unkept
-                && let Some(old) = self
-                    .results
-                    .get(i)
-                    .filter(current)
-                    .filter(|old| moved.is_empty() || old.skipped || reads_none_of(f, &state, &moved, &feature_component))
-                    .filter(|old| old.skipped || legacy_current(doc, f, &state, &old.state))
+                && let Some(old) = self.results.get(i).filter(current).filter(|old| old.skipped || legacy_current(doc, f, &state, &old.state))
            {
-                if moved.is_empty() {
-                    if !old.skipped {
-                        state = old.state.clone();
-                    }
-                    out.push(old.clone());
-                } else {
-                    if !old.skipped {
-                        state = with_moved(&old.state, &moved);
-                    }
-                    out.push(FeatureResult { state: state.clone(), ..old.clone() });
+                if !old.skipped {
+                    state = old.state.clone();
                }
+                out.push(old.clone());
                continue;
            }
-            // Reuse goes on past a pose-only feature evaluated again for its pose alone.
-            let reusing = reuse && !unkept && pose.is_some();
            reuse = unkept && !cancelled;
            if f.suppressed || rolled_back || cancelled {
                out.push(FeatureResult {
@@ -2504,14 +2386,6 @@ impl Model {
                }
                // A kept result after a failed one would not be this evaluation's.
                reuse &= c.error.is_none();
-                if reusing
-                    && c.error.is_none()
-                    && let Some(bodies) = pose_moved(self.results.get(i), f, fp, &state)
-                {
-                    moved.retain(|(id, _)| *id != f.id);
-                    moved.push((f.id, bodies));
-                    reuse = true;
-                }
                out.push(FeatureResult {
                    id: f.id,
                    name: f.name.clone(),
@@ -2533,9 +2407,8 @@ impl Model {
            // (the same chain of definitions from the start). Changed inputs never reuse it.
            if let Some(r) = rolled
                .as_ref()
-                .filter(|_| moved.is_empty())
                .filter(current)
-                .or_else(|| primed.as_ref().filter(|_| moved.is_empty()).and_then(|p| p.get(&f.id)).filter(current))
+                .or_else(|| primed.as_ref().and_then(|p| p.get(&f.id)).filter(current))
                .filter(|r| r.error.is_some() || legacy_current(doc, f, &state, &r.state))
            {
                restored += 1;
@@ -2676,14 +2549,6 @@ impl Model {
                }
            }
            reuse &= error.is_none();
-            if reusing
-                && error.is_none()
-                && let Some(bodies) = pose_moved(self.results.get(i), f, fp, &state)
-            {
-                moved.retain(|(id, _)| *id != f.id);
-                moved.push((f.id, bodies));
-                reuse = true;
-            }
            out.push(FeatureResult {
                id: f.id,
                name: f.name.clone(),
@@ -2701,7 +2566,6 @@ impl Model {
            });
        }
        self.placement_local = self.placement_local && out.iter().all(|r| !r.skipped && !r.stale && !r.unkept && r.error.is_none());
-        self.poses = poses;
        self.results = out;
        self.last_recomputed = recomputed;
        self.recomputed += recomputed;
@@ -3286,53 +3150,10 @@ fn apply_op(doc: &Document, state: &mut ModelState, f: &Feature, tools: Vec<Body
    apply_traced(doc, state, f, tools.into_iter().map(Traced::unnamed).collect(), op, targets)
 }

-/// The most cut tools [`clear_tools_as_one`] joins into one tool. The kernel's boolean takes
-/// far longer for a tool of many pieces than for several of fewer: one cut of 20 apart pieces
-/// into a ring took 0.34 s, of 40 1.75 s, of 60 6.4 s, of about 105 (a pattern of a pattern,
-/// #8765) 23 s. So more tools are joined in groups of at most this many, each cut in turn. This
-/// works around the boolean's cost; it does not change what is cut.
-const MAX_JOINED_TOOLS: usize = 32;
-
-#[cfg(test)]
-thread_local! {
-    /// [`MAX_JOINED_TOOLS`] for this thread's tests: a test cuts the same tools in one go.
-    static JOINED_TOOLS_LIMIT: std::cell::Cell<usize> = const { std::cell::Cell::new(MAX_JOINED_TOOLS) };
-}
-
-#[cfg(test)]
-fn joined_tools_limit() -> usize {
-    JOINED_TOOLS_LIMIT.with(std::cell::Cell::get)
-}
-
-#[cfg(not(test))]
-fn joined_tools_limit() -> usize {
-    MAX_JOINED_TOOLS
-}
-
 /// Many cut tools clear of each other (a pattern's copies, the circles of a vent field in one
 /// sketch) as one tool of many pieces, so the target is cut once instead of rebuilding an ever
 /// more complex body for every tool (#261, #368). Tools that may meet are left as they are.
-/// More than [`MAX_JOINED_TOOLS`] tools are joined in even groups, one tool for each (#8765).
 fn clear_tools_as_one(tools: Vec<Traced>) -> Result<Vec<Traced>> {
-    let limit = joined_tools_limit().max(1);
-    if tools.len() <= limit {
-        return clear_group_as_one(tools);
-    }
-    let groups = tools.len().div_ceil(limit);
-    let size = tools.len().div_ceil(groups);
-    let mut rest = tools.into_iter();
-    let mut out = Vec::new();
-    loop {
-        let group: Vec<Traced> = rest.by_ref().take(size).collect();
-        if group.is_empty() {
-            return Ok(out);
-        }
-        out.extend(clear_group_as_one(group)?);
-    }
-}
-
-/// [`clear_tools_as_one`] for one group of tools.
-fn clear_group_as_one(tools: Vec<Traced>) -> Result<Vec<Traced>> {
    if tools.len() < 8 {
        return Ok(tools);
    }
@@ -4933,13 +4754,9 @@ fn hole_position(vals: &BTreeMap<String, Value>, position: &crate::FacePick, at:
 // Pick an actual cylindrical wall, not a depth derived from its radius: a large pipe bore can
 // be shallow or pass through a thin plate. Sampling its finite face also skips a wider entry
 // pocket and keeps metadata attached to the narrow cylindrical bore.
-//
-// A hole drilled across a pocket or a slot leaves its wall in pieces along the axis (#13505):
-// every piece the hole reaches (`reach`, its depth from `entry`) is returned, nearest the entry
-// first, each as (its start and end from the entry along `inward`, a point on it).
-fn parallel_tapped_wall(st: &ModelState, entry: Vec3, inward: Vec3, radius: f64, reach: f64) -> Vec<(f64, f64, Vec3)> {
+fn parallel_tapped_wall(st: &ModelState, entry: Vec3, inward: Vec3, radius: f64) -> Option<Vec3> {
    let tol = (radius * 1e-6).max(1e-6);
-    let mut walls: Vec<(f64, f64, Vec3)> = Vec::new();
+    let mut best: Option<(f64, Vec3)> = None;
    for body in &st.bodies {
        // A wall found lies on the line through `entry` along `inward`, give or take its radius
        // (and the slant its axis may have off `inward` over the body's distance), and its
@@ -4966,15 +4783,12 @@ fn parallel_tapped_wall(st: &ModelState, entry: Vec3, inward: Vec3, radius: f64,
            let b = (c.axis_point + c.axis * c.end - entry).dot(inward);
            let lo = a.min(b).max(0.0);
            let hi = a.max(b);
-            // One piece of wall made of several faces (a cylinder split at its seams) is one.
-            let mid = (lo + hi) * 0.5;
-            if hi > lo + 1e-9 && lo < reach - 1e-6 && !walls.iter().any(|(l, h, _)| (*l..=*h).contains(&mid)) {
-                walls.push((lo, hi, entry + inward * mid + inward.any_perp() * radius));
+            if hi > lo + 1e-9 && best.as_ref().is_none_or(|(old, _)| lo < *old) {
+                best = Some((lo, entry + inward * ((lo + hi) * 0.5) + inward.any_perp() * radius));
            }
        }
    }
-    walls.sort_by(|a, b| a.0.total_cmp(&b.0));
-    walls
+    best.map(|(_, wall)| wall)
 }

 /// The cutting tools of a hole feature at every spot, each with its exact geometry when it is a
@@ -7145,30 +6959,6 @@ fn replay(
            }
            continue;
        }
-        // A thread is cut again on the copy of its face. A copy keeps the thread's hand: the
-        // mirror of a right-hand M8 hole is a right-hand M8 hole, not a left-hand one.
-        if matches!(src.kind, FeatureKind::Thread { .. }) {
-            for m in mats {
-                let mut copy = (*src).clone();
-                copy.id = f.id;
-                copy.face_names.clear();
-                if let FeatureKind::Thread { face, from, up_to, .. } = &mut copy.kind {
-                    face.0 = crate::apply_point(m, face.0);
-                    if let Some(q) = from {
-                        q.0 = crate::apply_point(m, q.0);
-                    }
-                    match up_to {
-                        Some(crate::ThreadLimit::Face(q)) => q.0 = crate::apply_point(m, q.0),
-                        Some(crate::ThreadLimit::Plane(_)) => {
-                            return Err(DocError::Invalid(format!("{} ends at a plane, so it cannot be patterned or mirrored yet", src.name)));
-                        }
-                        None => {}
-                    }
-                }
-                thread::eval(doc, vals, &copy, st, warning)?;
-            }
-            continue;
-        }
        let (op, targets) = feature_op(src);
        // A primitive's or a hole's targets are its participants (#1108): the copies change
        // those bodies only, like the feature itself (#2755).
@@ -7705,28 +7495,12 @@ fn eval_feature(
            let mut constructor = None;
            let mut to_body = None;
            let tools = feature_tools_with_constructor(doc, vals, f, st, &mut constructor, &mut to_body, warning)?;
-            // #9969: a cut whose tool lies clear of the body (a profile drawn beside it, a
-            // distance that stops short, the wrong direction) reported success and changed
-            // nothing. Say so, as a hole does (#10701): the bodies are compared before and after,
-            // whether the cut went through sheet metal's flat pattern or the generic path.
-            let before: Option<Vec<Body>> = (*operation == Operation::Cut).then(|| st.bodies.iter().map(|b| b.body.clone()).collect());
-            let unchanged = |st: &ModelState, warning: &mut Option<String>| {
-                if let Some(before) = &before
-                    && !before.is_empty()
-                    && st.bodies.len() == before.len()
-                    && st.bodies.iter().zip(before).all(|(b, old)| old.same(&b.body))
-                {
-                    append_warning(warning, "the cut removes no material; check where its profile lies, the direction and the distance".into());
-                }
-            };
            // Cuts through sheet metal become cut-outs of its flat pattern.
            if matches!(operation, Operation::Cut | Operation::Intersect) && matches!(f.kind, FeatureKind::Extrude { .. }) && !st.sheets.is_empty() {
                let bodies: Vec<Body> = tools.iter().map(|t| t.body.clone()).collect();
                let handled = more::sheet_cut(f, st, &bodies, &crate::plain(targets), constructor.as_ref(), warning)?;
                if !handled.is_empty() {
-                    apply_beside_sheet_cut(doc, st, f, tools, *operation, &crate::plain(targets), &handled)?;
-                    unchanged(st, warning);
-                    return Ok(());
+                    return apply_beside_sheet_cut(doc, st, f, tools, *operation, &crate::plain(targets), &handled);
                }
            }
            // A join one sheet thick in the plane of a panel becomes part of that panel. A Join to an
@@ -7740,11 +7514,9 @@ fn eval_feature(
            // A Join extrude to an object joins that object too (#6424): the tool and the body
            // it runs to are one body, not only the body the profile was sketched on.
            let extra: Vec<String> = if *operation == Operation::Join { to_body.into_iter().collect() } else { Vec::new() };
-            apply_traced_with(doc, st, f, tools, *operation, &crate::plain(targets), &extra)?;
-            unchanged(st, warning);
-            Ok(())
+            apply_traced_with(doc, st, f, tools, *operation, &crate::plain(targets), &extra)
        }
-        FeatureKind::Hole { thread, thread_depth, diameter, hand, modeled, ease_out, depth, to, .. } => {
+        FeatureKind::Hole { thread, thread_depth, diameter, hand, modeled, ease_out, .. } => {
            let thread_depth = thread_depth.as_ref().map(|d| val(vals, d, Kind::Length)).transpose()?;
            if thread_depth.is_some() && thread.is_none() {
                return Err(DocError::Invalid("thread depth requires a tapped hole".into()));
@@ -7759,19 +7531,6 @@ fn eval_feature(
                return Err(DocError::Invalid("thread depth must be finite and positive".into()));
            }
            let (spots, dir) = hole_spots(vals, st, f)?;
-            // How deep each hole goes (through all: as far as the wall goes), read before the cut:
-            // the pieces of a wall the thread runs along lie within it.
-            let reaches: Vec<f64> = if thread.is_some() {
-                spots
-                    .iter()
-                    .map(|at| match hole_depth_to(st, at, dir, &to.map(Vec3::from), depth)? {
-                        Some(e) => val(vals, &e, Kind::Length),
-                        None => Ok(f64::INFINITY),
-                    })
-                    .collect::<Result<_>>()?
-            } else {
-                Vec::new()
-            };
            let tools = hole_feature_tools(vals, st, f)?;
            let handled = sheet_hole_cut(st, f, &tools, warning)?;
            let tools: Vec<Traced> = tools.into_iter().map(|(tool, _)| tool).collect();
@@ -7807,77 +7566,42 @@ fn eval_feature(
                    )
                });
                let ease = thread::runout(vals, ease_out)?;
-                for (p, reach) in spots.into_iter().zip(reaches) {
-                    let walls = parallel_tapped_wall(st, p, dir, r, reach);
-                    if pipe && walls.is_empty() {
-                        return Err(DocError::Invalid("no cylindrical pipe-thread wall remains".into()));
-                    }
-                    // A pipe thread is one taper from the entry: its first wall only.
-                    let walls: Vec<(f64, f64, Vec3)> = match walls.first() {
-                        None => vec![(0.0, f64::INFINITY, p + dir.any_perp() * r + dir * (r * 0.5))],
-                        Some(first) if pipe => vec![*first],
-                        Some(_) => walls,
+                for p in spots {
+                    let wall = if pipe {
+                        parallel_tapped_wall(st, p, dir, r).ok_or_else(|| DocError::Invalid("no cylindrical pipe-thread wall remains".into()))?
+                    } else {
+                        parallel_tapped_wall(st, p, dir, r).unwrap_or(p + dir.any_perp() * r + dir * (r * 0.5))
                    };
-                    // The thread depth runs from where the first wall starts, through every piece
-                    // of the wall it reaches (#13505).
-                    let first = walls.first().map_or(0.0, |w| w.0);
-                    let stop = thread_depth.map(|d| first + d);
                    let ask = thread::ThreadAsk { designation: Some(d), tapped: true, hand: *hand, ..Default::default() };
                    if *modeled {
                        // Cut from the entry, as deep as `thread_depth` or along the whole wall:
                        // at a blind hole's bottom the groove stops clear of it, or fades out
-                        // before it with a runout. Every piece is found before any is cut.
-                        let mut on = Vec::new();
-                        for (lo, hi, wall) in &walls {
-                            let extent = match stop {
-                                None => thread::Extent::Full,
-                                Some(s) if s >= *hi => thread::Extent::Full,
-                                Some(s) if s > *lo => thread::Extent::Length(s - lo),
-                                Some(_) => break,
-                            };
-                            // A piece past the first starts at its end nearest the entry.
-                            let from = if on.is_empty() { p } else { p + dir * *lo };
-                            let ask = thread::ThreadAsk { modeled: true, extent, from: Some(from), ease_out: ease, ..ask };
-                            on.push(thread_on(st, f.id, *wall, &ask)?);
-                        }
-                        for o in on {
-                            thread::cut(st, o, (crate::thread_forms::ThreadTip::None, None, None))?;
-                        }
+                        // before it with a runout.
+                        let extent = thread_depth.map_or(thread::Extent::Full, thread::Extent::Length);
+                        let ask = thread::ThreadAsk { modeled: true, extent, from: Some(p), ease_out: ease, ..ask };
+                        let on = thread_on(st, f.id, wall, &ask)?;
+                        thread::cut(st, on, (crate::thread_forms::ThreadTip::None, None, None))?;
                        continue;
                    }
-                    let mut threads = Vec::new();
-                    for (lo, _, wall) in &walls {
-                        if stop.is_some_and(|s| s <= *lo) {
-                            break;
-                        }
-                        threads.push(thread_on(st, f.id, *wall, &ask)?.info);
-                    }
+                    let mut t = thread_on(st, f.id, wall, &ask)?.info;
                    if let Some(depth) = thread_depth {
-                        let useful =
-                            |t: &ThreadInfo| (t.axis_point + t.axis * t.start - p).dot(dir).max((t.axis_point + t.axis * t.end - p).dot(dir));
-                        let available = threads.last().map_or(0.0, |t| useful(t) - first);
-                        if depth > available + 1e-9 {
+                        let available = t.end - t.start;
+                        if depth > available {
                            return Err(DocError::Invalid(format!(
                                "thread depth {} mm exceeds the cylindrical wall's useful length of {} mm; reduce the thread depth or use full thread depth",
                                show_mm(depth),
                                show_mm(available)
                            )));
                        }
-                        // Stop `depth` past the first wall's start in the drilling direction,
-                        // independently of the wall probe's position and the cylinder surface's
-                        // axis orientation.
-                        if let (Some(t), Some(s)) = (threads.last_mut(), stop) {
-                            let past = useful(t) - s;
-                            if past > 0.0 {
-                                if dir.dot(t.axis) > 0.0 {
-                                    t.end -= past;
-                                } else {
-                                    t.start += past;
-                                }
-                            }
+                        // Start at the entry in the drilling direction, independently of the
+                        // wall probe's position and the cylinder surface's axis orientation.
+                        if dir.dot(t.axis) > 0.0 {
+                            t.end = t.start + depth;
+                        } else {
+                            t.start = t.end - depth;
                        }
                    }
-                    st.threads.extend(threads);
+                    st.threads.push(t);
                }
            }
            Ok(())
@@ -7974,12 +7698,7 @@ fn eval_feature(
                // A plane of numbers alone reads no body: placing them all is the design's size.
                None if plane_is_fixed(plane) => doc.resolve_plane_in(vals, plane, 0, Some(st))?,
                // Picks on bodies of other (moved) components are where those bodies are shown.
-                None => doc.resolve_plane_in(
-                    vals,
-                    &*construction_planes_in_frame(doc, st, f.component, plane)?,
-                    0,
-                    Some(&*construction_state(doc, st, f.component)?),
-                )?,
+                None => doc.resolve_plane_in(vals, plane, 0, Some(&*construction_state(doc, st, f.component)?))?,
            };
            st.construct.push(crate::construct::Construct {
                feature: f.id,
@@ -8624,7 +8343,7 @@ fn eval_sketch(
            (doc.resolve_plane_in(vals, &sheet_face_plane_in_frame(doc, st, f.component, plane)?, 0, Some(&fst))?, None)
        }
        (None, PlaneRef::Face { plane: picked, at, name, anchor: None }) => face_plane(&fst, picked, *at, name.as_deref())?,
-        (None, other) => (doc.resolve_plane_in(vals, &*construction_planes_in_frame(doc, st, f.component, other)?, 0, Some(&fst))?, None),
+        (None, other) => (doc.resolve_plane_in(vals, other, 0, Some(&fst))?, None),
    };
    let mut sk = sketch.clone();
    // A text's outlines are rebuilt from its numbers when the links are refreshed: the
@@ -8679,17 +8398,7 @@ fn mesh_bodies(meshes: &[crate::MeshData]) -> Result<Vec<(String, Body)>> {
    for m in meshes {
        let positions: Vec<Vec3> = m.positions.as_chunks::<3>().0.iter().map(|c| Vec3::new(c[0], c[1], c[2])).collect();
        let triangles: Vec<[u32; 3]> = m.triangles.as_chunks::<3>().0.to_vec();
-        if !m.corner_normals.is_empty() && m.corner_normals.len() != m.triangles.len().saturating_mul(3) {
-            return Err(DocError::Invalid(format!("mesh `{}`: invalid shading normal count", m.name)));
-        }
-        let normals: Vec<[Vec3; 3]> = m
-            .corner_normals
-            .as_chunks::<9>()
-            .0
-            .iter()
-            .map(|c| [Vec3::new(c[0], c[1], c[2]), Vec3::new(c[3], c[4], c[5]), Vec3::new(c[6], c[7], c[8])])
-            .collect();
-        let b = kernel::mesh_body_with_normals(&positions, &triangles, &normals).map_err(|e| DocError::Invalid(format!("mesh `{}`: {e}", m.name)))?;
+        let b = kernel::mesh_body(&positions, &triangles).map_err(|e| DocError::Invalid(format!("mesh `{}`: {e}", m.name)))?;
        out.push((m.name.clone(), b.with_color(m.color)));
    }
    Ok(out)
@@ -9155,7 +8864,6 @@ impl PlacedBodies {
            fresh.joint_faces = placed.joint_faces.clone();
            fresh.mesh_placement = placed.mesh_placement.clone();
            fresh.plan = placed.plan.clone();
-            fresh.gpu_plan = placed.gpu_plan.clone();
            fresh.plan_mesh = placed.plan_mesh.clone();
            fresh
        })
@@ -9225,7 +8933,6 @@ fn in_frame(b: &ModelBody, m: &crate::Mat, placed: &ModelBody) -> ModelBody {
    let mut moved = ModelBody::new(b.name.clone(), placed.body.clone(), b.feature);
    moved.mesh = placed.mesh.clone();
    moved.plan = placed.plan.clone();
-    moved.gpu_plan = placed.gpu_plan.clone();
    moved.plan_mesh = placed.plan_mesh.clone();
    moved.component = b.component;
    moved.transferred = b.transferred;
@@ -9392,55 +9099,6 @@ pub fn world_state_reusing(doc: &Document, st: &ModelState, placed_before: &mut
    Ok(out)
 }

-/// `plane` for a feature of component `comp`, with each construction plane of another component
-/// (under any offset or flip of it) given as the plane where that component puts it, in `comp`'s
-/// frame (#11734). A construction plane is kept in its own component's frame, as the axes are
-/// (`construction_axis_in`), so a plane read as it is would fall in the wrong place for a feature
-/// of a component placed differently.
-fn construction_planes_in_frame<'a>(doc: &Document, st: &ModelState, comp: u64, plane: &'a PlaneRef) -> Result<std::borrow::Cow<'a, PlaneRef>> {
-    use std::borrow::Cow;
-    // The component of a feature, read from the timeline without `Document::feature`'s search counter.
-    fn owner_of(doc: &Document, id: u64) -> Option<u64> {
-        doc.features.iter().find(|f| f.id == id).map(|f| f.component)
-    }
-    fn foreign(doc: &Document, comp: u64, plane: &PlaneRef) -> bool {
-        match plane {
-            PlaneRef::Construction { feature } => owner_of(doc, feature.0).is_some_and(|owner| owner != comp),
-            PlaneRef::Offset { base, .. } | PlaneRef::Flipped { base, .. } | PlaneRef::AtAngle { base, .. } | PlaneRef::ThroughPoint { base, .. } => {
-                foreign(doc, comp, base)
-            }
-            _ => false,
-        }
-    }
-    fn map(doc: &Document, st: &ModelState, comp: u64, plane: &mut PlaneRef) -> Result<()> {
-        match plane {
-            PlaneRef::Construction { feature } => {
-                let owner = owner_of(doc, feature.0).unwrap_or(comp);
-                if owner == comp {
-                    return Ok(());
-                }
-                if let Some(crate::construct::ConstructGeom::Plane(pl)) = st.construct.iter().find(|c| c.feature == feature.0).map(|c| &c.geom) {
-                    let inverse = crate::mat_inverse(&doc.component_transform(comp))
-                        .ok_or_else(|| DocError::Invalid("the feature's component frame is invalid".into()))?;
-                    let m = crate::mat_mul(&inverse, &doc.component_transform(owner));
-                    *plane = PlaneRef::Custom { plane: placed_plane(&m, pl)? };
-                }
-            }
-            PlaneRef::Offset { base, .. } | PlaneRef::Flipped { base, .. } | PlaneRef::AtAngle { base, .. } | PlaneRef::ThroughPoint { base, .. } => {
-                map(doc, st, comp, base)?
-            }
-            _ => {}
-        }
-        Ok(())
-    }
-    if doc.occurrences.is_empty() || !foreign(doc, comp, plane) {
-        return Ok(Cow::Borrowed(plane));
-    }
-    let mut mapped = plane.clone();
-    map(doc, st, comp, &mut mapped)?;
-    Ok(Cow::Owned(mapped))
-}
-
 /// `plane` moved by the placement `m`; an error when `m` does not keep it a plane (a placement
 /// that is not a rigid motion, which [`Document`] does not take).
 fn placed_plane(m: &crate::Mat, plane: &Plane) -> Result<Plane> {
@@ -911,7 +911,6 @@ fn shared_imported_mesh_inputs_keep_payload_identity_and_invalidate_replacements
                    positions: Arc::from([0., 0., 0., 1., 0., 0., 0., 1., 0.]),
                    triangles: Arc::from([0, 1, 2]),
                    color: None,
-                    corner_normals: Default::default(),
                }],
            },
            None,
@@ -925,7 +924,7 @@ fn shared_imported_mesh_inputs_keep_payload_identity_and_invalidate_replacements
    Arc::make_mut(&mut doc).occurrences[0].transform = rigid(Vec3::new(10., 0., 0.), Vec3::ZERO, Vec3::Z, 0.3);
    assert!(!model.evaluate_shared(&doc));
    assert!(Arc::ptr_eq(&original, &model.state()));
-    for edit in 0..6 {
+    for edit in 0..5 {
        let FeatureKind::MeshImport { meshes, .. } = &mut Arc::make_mut(&mut doc).feature_mut(feature).unwrap().kind else { panic!("mesh") };
        let mesh = &mut meshes[0];
        match edit {
@@ -933,7 +932,6 @@ fn shared_imported_mesh_inputs_keep_payload_identity_and_invalidate_replacements
            1 => Arc::make_mut(&mut mesh.triangles).swap(1, 2),
            2 => mesh.color = Some([0.2, 0.4, 0.6]),
            3 => mesh.name = "Renamed".into(),
-            4 => mesh.corner_normals = Arc::from([0., 1., 1., 0., 1., 1., 0., 1., 1.]),
            _ => mesh.positions = Arc::from(mesh.positions.to_vec()),
        }
        assert!(model.evaluate_shared(&doc), "mesh edit {edit} must invalidate");
@@ -1046,7 +1044,6 @@ fn comparing_a_copied_mesh_does_not_read_its_shared_arrays() {
        positions: Arc::from([0., 0., 0., 1., 0., 0., 0., 1., f64::NAN]),
        triangles: Arc::from([0, 1, 2]),
        color: None,
-        corner_normals: Default::default(),
    };
    let copy = mesh.clone();
    assert!(copy == mesh, "a copy shares the arrays and is the same mesh without reading them");
@@ -1707,35 +1704,6 @@ fn copies_of_a_hole_that_come_close_are_cut_one_by_one() {
    assert!((v - (disc - 16.0 * hole)).abs() < 1e-3 * hole, "{v}");
 }

-#[test]
-fn many_copies_cut_in_groups_leave_what_one_cut_leaves() {
-    // 48 holes on a 40 mm circle, 5.2 mm apart: the 47 copies are more than one joined tool
-    // takes, so they are cut as two (#8765). The disc comes out as cutting all of them in one go
-    // leaves it: the same volume, the same faces, named the same.
-    let disc = |limit: usize| {
-        super::JOINED_TOOLS_LIMIT.with(|l| l.set(limit));
-        let mut doc = Document::new("perforated");
-        disc_with_hole_pattern(&mut doc, 40.0, 48);
-        let mut model = Model::new();
-        let work = counted(|| model.evaluate(&doc));
-        super::JOINED_TOOLS_LIMIT.with(|l| l.set(super::MAX_JOINED_TOOLS));
-        assert!(model.results.iter().all(|r| r.error.is_none() && r.warning.is_none()), "{:?}", model.results);
-        let st = model.state();
-        assert_eq!(st.bodies.len(), 1);
-        let mut names = crate::naming::face_names(&st.bodies[0]).to_vec();
-        names.sort();
-        (disc_volume(&model), st.bodies[0].body.face_count(), names, work.cut_tools)
-    };
-    let (volume, faces, names, tools) = disc(super::MAX_JOINED_TOOLS);
-    let (one_volume, one_faces, one_names, one_tools) = disc(usize::MAX);
-    assert_eq!((tools, one_tools), (2, 1));
-    let hole = std::f64::consts::PI * 1.75 * 1.75 * 1.5;
-    assert!((volume - one_volume).abs() < 1e-6 * hole, "{volume} vs {one_volume}");
-    assert!((one_volume - (std::f64::consts::PI * 2500.0 * 1.5 - 48.0 * hole)).abs() < 1e-3 * hole, "{one_volume}");
-    assert_eq!(faces, one_faces);
-    assert_eq!(names, one_names);
-}
-
 /// A ring (25 mm outside, 16 mm bore, 55 mm high) with a blind groove, 8 mm wide and 30 mm deep,
 /// cut into its bore from below, in a circular pattern of ten about Z: their boxes, grown as the
 /// kernel grows them, meet, their exact shapes are 1.9 mm apart. The ring's faces counted as its
@@ -1803,7 +1771,6 @@ fn imported_meshes() -> Document {
            positions: [0.0, 0.0, 0.0, 2.0, 0.0, 0.0, 0.0, 3.0, 0.0, 0.0, 0.0, 4.0].into(),
            triangles: [0, 2, 1, 0, 1, 3, 0, 3, 2, 1, 2, 3].into(),
            color: Some([0.2, 0.4, 0.6]),
-            corner_normals: Default::default(),
        })
        .collect();
    let id = doc.add_feature(FeatureKind::MeshImport { file: "tetrahedra.stl".into(), meshes }, Some("Meshes")).unwrap();
@@ -1835,16 +1802,6 @@ fn same_as_fresh(doc: &Document, model: &Model) {
 #[test]
 fn unchanged_mesh_payloads_are_not_read_again_for_rigid_motion() {
    let mut doc = imported_meshes();
-    for mesh in meshes_mut(&mut doc) {
-        mesh.generate_crease_normals(10.0).unwrap();
-        assert!(!mesh.corner_normals.is_empty());
-    }
-    let compact: serde_json::Value = serde_json::from_str(&super::feature_json(&doc.features[0], &super::ImportDigests::default())).unwrap();
-    for mesh in compact[0]["meshes"].as_array().unwrap() {
-        assert_eq!(mesh["positions"], serde_json::json!([]));
-        assert_eq!(mesh["triangles"], serde_json::json!([]));
-        assert!(mesh.get("corner_normals").is_none(), "the fingerprint must hash the retained digest without serializing shading payloads");
-    }
    let mut model = Model::new();
    assert_eq!(counted(|| model.evaluate(&doc)).mesh_digested, 2);
    for k in 1..5 {
@@ -1,33 +0,0 @@
-//! Imported mesh sources may save optional `corner_normals`: nine f64 values per
-//! triangle, independent of positions, topology and optical boundary certification.
-//! Missing/empty normals retain the previous flat shading. OBJ `vn` and `s` import
-//! preserve authored corner normals and smoothing groups. Explicit crease generation
-//! stores only shading metadata and preserves original coordinates and triangle indices.
-//! Older released readers warn about this format and retain fields they cannot read.
-//!
-//! Render jobs may save opt-in `texture_filtering`; omission/false preserves LOD0
-//! texture sampling. Supported consumers use the captured texture's mip chain and
-//! ray footprint without changing source image identity or source color semantics.
-//!
-//! Optional `metal_energy_compensation` restores a bounded share of rough metal
-//! reflectance in both path tracers. Omission or false keeps the previous BRDF.
-//!
-//! Caustics options may save `area_lights: true` and `environment: true` for
-//! both path tracers. Omission preserves the hard-source photon map.
-//!
-//! Caustics may also save `guided_emission: true` to concentrate photon emission
-//! around captured optical bounds with probability-corrected power. Omission or
-//! false preserves the original emission proposal. Older released readers warn
-//! about the newer format and retain fields they cannot interpret when saving.
-//!
-//! Caustics may save `refresh_per_pass: true` to build one photon map per camera
-//! pass. Omission or false retains one map per render job.
-//!
-//! Caustics may save `power_weighted_sources: true` to allocate photon launches
-//! using estimated source power with a uniform support component. Each source
-//! retains its matching probability correction. Omission or false preserves
-//! uniform source selection and the original random sequence.
-//!
-//! CPU jobs may save `environment_importance_sampling: true` to use the captured
-//! HDR radiance distribution for lighting and photon emission. Omission or false
-//! retains uniform sphere sampling. Older readers warn and retain unknown fields.
@@ -1,6 +0,0 @@
-//! Saves CPU worker selection, linear 2x supersampling and denoising controls in render setups.
-//! Older designs retain native-size output, three full-strength denoising passes and no firefly suppression.
-//! DenoiseSettings.optical_filter defaults to true for supported mirror/glass filtering; an explicit false
-//! restores legacy opaque-only denoising and is retained in CPU and GPU setups. No rewrite is needed.
-//! Omitted CPU worker selection uses the bounded automatic pool, with one worker available for serial work.
-//! The last release warns about this newer design format and preserves fields it cannot read.
@@ -1,32 +0,0 @@
-//! A body's display plan in the form the viewport evaluates on the GPU. The kernel plans with the
-//! one mesher in solidcore-tess (RFC 0003, item 1.1), so that form is the plan itself; the model
-//! still caches it apart from the display plan, so the viewport's cache, keyed by each plan's
-//! allocation, keeps its uploads from frame to frame.
-
-use solidcraft_geom::tess::TessPlan;
-
-/// `plan` in the form the viewport evaluates on the GPU: solidcore-tess's plan, which the kernel's
-/// already is.
-pub fn gpu_plan(plan: &TessPlan) -> solidcore_tess::TessPlan {
-    plan.clone()
-}
-
-#[cfg(test)]
-mod tests {
-    use solidcore_record::Vec3;
-
-    /// A body's GPU plan is made once per display quality and then read as the same allocation,
-    /// by the body and its clones (the viewport keys its uploads by it), equal to its display plan
-    /// converted.
-    #[test]
-    fn a_bodys_gpu_plan_is_one_allocation_across_reads() {
-        let body = solidcraft_kernel::box_solid(Vec3::ZERO, Vec3::new(10.0, 8.0, 4.0)).unwrap();
-        let b = crate::ModelBody::new("Body1".into(), body, 0);
-        let q = crate::display_quality::DisplayQuality::default();
-        let first = b.gpu_plan_at(q).unwrap();
-        assert!(std::sync::Arc::ptr_eq(&first, &b.gpu_plan_at(q).unwrap()));
-        assert!(std::sync::Arc::ptr_eq(&first, &b.clone().gpu_plan_at(q).unwrap()));
-        assert!(std::sync::Arc::ptr_eq(&first, &b.refined_display(q, 0).unwrap().0));
-        assert_eq!(*first, super::gpu_plan(&b.display_plan_at(q).unwrap()));
-    }
-}
@@ -22,7 +22,6 @@ mod component_removal;
 pub use component_removal::RemovedTree;
 pub mod config;
 pub mod construct;
-pub mod csv;
 pub mod display_quality;
 pub mod display_units;
 mod document;
@@ -36,7 +35,6 @@ pub use face_anchor::{FaceAnchor, FaceAttachmentStatus};
 pub mod format;
 mod format_offsets;
 pub mod frame;
-pub mod gpu_plan;
 mod history_names;
 pub mod hole_reference;
 pub mod ids;
@@ -917,10 +917,7 @@ impl Model {
        }
        let mut model = Model { results, param_errors, import_digests, context: ctx, frame_bodies, validation, ..Model::default() };
        let unkept = model.results.iter().filter(|r| r.unkept).count();
-        // A pose-only feature's fingerprint leaves its pose out, so its saved result may be from
-        // another pose than `doc`'s: evaluated again, with what reads none of it kept (#12139).
-        let posed = doc.features.iter().zip(&model.results).any(|(f, r)| !r.skipped && pose_only(f));
-        if unkept > 0 || posed {
+        if unkept > 0 {
            // The features whose state the file did not keep, each evaluated again from the state
            // before it: nothing else in the model is missing then.
            model.evaluate(doc);
@@ -936,12 +933,6 @@ impl Model {
        let mut before = Arc::new(ModelState::default());
        if let Ok(mut cache) = model.cache.lock() {
            for (f, r) in doc.features.iter().zip(&model.results).filter(|(_, r)| !r.skipped && r.error.is_none()) {
-                // A pose-only feature's fingerprint leaves its pose out, so its saved result may be
-                // from another pose than `doc`'s: it is no result for `doc`'s key (#12139).
-                if pose_only(f) {
-                    before = r.state.clone();
-                    continue;
-                }
                let local = fingerprint(doc, 0, f, &vals, false, &model.import_digests) ^ placement_digest(doc, f, Some(&before));
                cache.put(
                    cache_key(f, r.fingerprint, local, ctx, &before),
@@ -50,11 +50,8 @@ pub struct EdgeHit {
 }

 /// The edge of a body a stored edge name finds: the edge with that name; else the one edge
-/// between the faces it names exactly (see [`exactly`]). A numbered name (`~k`) was one of
-/// several edges between its faces, told apart only by where they lay, so the one edge left
-/// between them is it only where the reference's point still lies on it. `Err` explains when
-/// there is none: no such edge, the named edge split into several, one of several edges whose
-/// faces now bound one edge elsewhere, or a name saved before format 14.
+/// between the faces it names exactly (see [`exactly`]). `Err` explains when there is none: no
+/// such edge, the named edge split into several, or a name saved before format 14.
 pub fn locate_edge(b: &ModelBody, name: &str, near: Vec3) -> Result<EdgeHit, String> {
    if legacy_name(name).is_some() {
        return Err(format!("edge `{name}` was named by a build before format 14"));
@@ -84,13 +81,7 @@ pub fn locate_edge(b: &ModelBody, name: &str, near: Vec3) -> Result<EdgeHit, Str
        keep_best(&mut best, level, i);
    }
    let (_, cands) = best.ok_or_else(|| format!("edge `{name}` no longer exists"))?;
-    // When the faces of several numbered edges bound one edge now, every one of their names
-    // finds the faces of that edge: taking it for each would put them all on one edge (#13332).
-    let numbered = wanted.len() != name.len();
    match cands.as_slice() {
-        [i] if numbered && !edge_near(b, &m, *i, near) => {
-            Err(format!("edge `{name}` was one of several between its faces, and the one left is elsewhere"))
-        }
        [i] => exact(*i),
        _ => Err(format!("edge `{name}` is no longer one edge")),
    }
@@ -334,8 +325,7 @@ impl EdgeHit {
 }

 /// The face a stored face name finds, on any body: the face with that name, or the named piece
-/// told apart by the faces around it, or a numbered piece of a face that is whole now (see
-/// [`recover_numbered_face_in`]). `None` when no face does, or several do.
+/// told apart by the faces around it. `None` when no face does, or several do.
 pub fn locate_face(st: &ModelState, name: &str, p: Vec3) -> Option<FaceHit> {
    if crate::sheet::split_sheet_face_name(name).is_some() {
        return sheet_locate(st, name, p).ok();
@@ -346,30 +336,7 @@ pub fn locate_face(st: &ModelState, name: &str, p: Vec3) -> Option<FaceHit> {
    // Every body's names are read below: work out the ones not known yet on all cores first
    // (each body's names are its own, whichever thread works them out).
    naming::warm_names(st.bodies.iter().filter(|b| !b.body.is_mesh()));
-    match locate_in(st.bodies.iter().enumerate().filter(|(_, b)| !b.body.is_mesh()), name, p) {
-        Ok(hit) => Some(hit),
-        Err(Miss::Gone) => recover_numbered_face_in(st, name, p),
-        Err(Miss::Several) => None,
-    }
-}
-
-/// A numbered piece of a round face (`F2:side:c1#2`, from the kernel before SMLib) on whichever
-/// one body recovers it as its whole face (#13252): see [`recover_numbered_projected_face`] for
-/// when that is safe. `None` when no body, or more than one, does.
-fn recover_numbered_face_in(st: &ModelState, name: &str, p: Vec3) -> Option<FaceHit> {
-    if !name.contains('#') {
-        return None;
-    }
-    let mut found = None;
-    for (body, b) in st.bodies.iter().enumerate().filter(|(_, b)| !b.body.is_mesh()) {
-        if let Some((face, point)) = recover_numbered_projected_face(b, name, p) {
-            if found.is_some() {
-                return None;
-            }
-            found = Some(FaceHit { body, face, point, verified: true, on_point: true });
-        }
-    }
-    found
+    locate_in(st.bodies.iter().enumerate().filter(|(_, b)| !b.body.is_mesh()), name, p).ok()
 }

 /// The one body of `st` with a face the stored face name finds, as [`locate_face`] looks for it.
@@ -494,7 +461,7 @@ pub(crate) fn locate_on(body: &ModelBody, name: &str, p: Vec3) -> Option<FaceHit
 /// Find a saved manual Project face in its body. Older designs can name a numbered piece of
 /// a face that now evaluates whole. Recover it only when the original feature directly made
 /// the exact whole face and the face contains the
-/// old pick. [`locate_face`] does the same for the other stored face references (#13252).
+/// old pick. Other face references still require the stored name as picked.
 pub(crate) fn locate_projected_face(body: &ModelBody, name: &str, p: Vec3) -> Option<(usize, Vec3)> {
    if body.body.is_mesh() {
        return None;
@@ -244,58 +244,6 @@ fn numbered_projection_refuses_a_pick_inside_a_hole_in_the_named_face() {
    assert!(pick(0.).is_none(), "the pick is on the plane but inside the hole");
 }

-/// A tangent plane on a cylinder saved by 0.30.1, whose kernel split the round side into numbered
-/// pieces, names it `F2:side:c1#2`; the side is one face now (#13252). The plane, and the sketch
-/// on it, are found again when the cylinder is still the body its feature made; a piece that
-/// another face of the surface could be (a split side) or a pick off the face is not.
-#[test]
-fn a_tangent_plane_on_a_numbered_piece_of_a_round_face_is_found_again() {
-    let doc = |name: &str, at: [f64; 3]| Document {
-        features: serde_json::from_value(serde_json::json!([
-            {
-                "id": 1, "name": "Sketch1", "type": "sketch", "plane": {"name": "XY", "type": "origin"},
-                "sketch": {
-                    "points": [{"fixed": true, "id": "origin", "pos": [0., 0.]}, {"fixed": false, "id": "c1.center", "pos": [0., 0.]}],
-                    "curves": [{"c": 1, "construction": false, "id": "c1", "r": 10., "type": "circle"}],
-                    "constraints": [{"id": "k1", "p": 0, "q": 1, "type": "coincident"}],
-                    "counters": {"k": 1, "l": 0, "p": 1}
-                }
-            },
-            {
-                "id": 2, "name": "Extrude1", "type": "extrude", "body_names": ["Body1"],
-                "extent": {"convention": "total_distance", "direction": "positive", "distance": "20"},
-                "operation": "new_body", "profiles": {"loops": [["c1"]], "type": "curves"}, "sketch": 1
-            },
-            {
-                "id": 3, "name": "Plane1", "type": "construction_plane", "suppressed": false,
-                "plane": {"type": "tangent", "at": at, "face": {"type": "face", "at": at, "name": name}}
-            },
-            {
-                "id": 4, "name": "Sketch2", "type": "sketch", "plane": {"feature": 3, "type": "construction"},
-                "sketch": {"points": [{"fixed": true, "id": "origin", "pos": [0., 0.]}], "curves": [], "constraints": [], "counters": {}}
-            }
-        ]))
-        .unwrap(),
-        ..Document::default()
-    };
-    let run = |doc: Document| {
-        let doc = crate::format::read(&doc.to_json()).unwrap();
-        let mut model = crate::Model::new();
-        model.evaluate(&doc);
-        model
-    };
-    let whole = run(doc("F2:side:c1", [10., 0., 10.]));
-    assert!(whole.result(3).unwrap().error.is_none(), "{:?}", whole.result(3));
-    for piece in ["F2:side:c1#1", "F2:side:c1#2"] {
-        let model = run(doc(piece, [10., 0., 10.]));
-        assert!(model.result(3).unwrap().error.is_none(), "{piece}: {:?}", model.result(3));
-        assert!(model.result(4).unwrap().error.is_none(), "{piece}: {:?}", model.result(4));
-    }
-    // A pick that is not on the face is still lost.
-    let off = run(doc("F2:side:c1#2", [10., 0., 30.]));
-    assert!(off.result(3).unwrap().error.is_some());
-}
-
 /// An edge picked when its side face was split in two keeps the piece in its name
 /// (`F2:side:l1#[F2:start]`); once the side is one face again the edge is still found (#11731).
 #[test]
@@ -483,10 +483,9 @@ impl Document {
    }

    /// User parameters as CSV (`name,unit,expression,value,comment`). The `value` column is the
-    /// number in the `unit` column, rounded for reading (#10747); import reads `expression`. A text
-    /// field a spreadsheet would run as a formula is written as text ([`crate::csv`]).
+    /// number in the `unit` column, rounded for reading (#10747); import reads `expression`.
    pub fn params_csv(&self) -> String {
-        let q = crate::csv::field;
+        let q = |s: &str| if s.contains([',', '"', '\r', '\n']) { format!("\"{}\"", s.replace('"', "\"\"")) } else { s.to_string() };
        let mut out = String::from("name,unit,expression,value,comment,favorite\n");
        for r in self.param_rows().into_iter().filter(|r| r.source == "user") {
            out += &format!(
@@ -1138,14 +1137,13 @@ fn split_csv(text: &str, separator: char) -> impl Iterator<Item = &str> {
 fn csv_fields(record: &str) -> Result<Vec<String>> {
    split_csv(record, ',')
        .map(|raw| {
-            // `unguard` takes off the `'` an export put before a value a spreadsheet would run.
            let field = raw.trim();
            if !field.contains('"') {
-                return Ok(crate::csv::unguard(field).to_string());
+                return Ok(field.to_string());
            }
            let inner = field.strip_prefix('"').and_then(|s| s.strip_suffix('"'));
            match inner {
-                Some(s) if s.split("\"\"").all(|part| !part.contains('"')) => Ok(crate::csv::unguard(&s.replace("\"\"", "\"")).to_string()),
+                Some(s) if s.split("\"\"").all(|part| !part.contains('"')) => Ok(s.replace("\"\"", "\"")),
                _ => Err(DocError::Invalid("invalid quoting in parameter CSV".into())),
            }
        })
@@ -2,7 +2,7 @@

 use serde::{Deserialize, Serialize};
 use solidcore_record::Vec3;
-use solidcraft_viewport::surface::{OpaqueSurface, SurfaceError, srgb8_to_linear};
+use solidcraft_render::surface::{OpaqueSurface, SurfaceError, srgb8_to_linear};

 /// Explicitly selected opaque response. Existing scalar looks have no such record.
 /// Construction and deserialization share the renderer's finite admission bounds.
@@ -162,7 +162,6 @@ impl ModelBody {
        if same_triangles(&self.body, &old.body) {
            self.mesh = old.mesh.clone();
            self.plan = old.plan.clone();
-            self.gpu_plan = old.gpu_plan.clone();
            self.plan_mesh = old.plan_mesh.clone();
            self.opposite_hand = old.opposite_hand.clone();
        }
@@ -294,7 +293,6 @@ fn proper_rigid(m: &crate::Mat) -> bool {
 #[cfg(test)]
 mod tests {
    use super::*;
-    use solidcraft_geom::tess::EvaluateMesh as _;

    #[test]
    fn mesh_outlines_keep_boundaries_and_creases_without_smooth_facet_lines() {
@@ -435,10 +433,10 @@ mod tests {
            let plans: Vec<_> = placed.iter().map(|p| p.display_plan_at(q).unwrap()).collect();
            assert!(source.plan.get(q.index()).unwrap().get().is_some(), "placing plans the definition, in its own cell");
            let own = source.display_plan_at(q).unwrap();
-            let local = own.evaluate_mesh();
+            let local = own.evaluate();
            for (m, plan) in [a, b].iter().zip(&plans) {
                assert!(!Arc::ptr_eq(plan, &own));
-                let moved = plan.evaluate_mesh();
+                let moved = plan.evaluate();
                assert_eq!(moved.triangles, local.triangles);
                for (p, q) in local.positions.iter().zip(&moved.positions) {
                    assert!(crate::apply_point(m, *p).dist(*q) < 1e-9, "{p:?} -> {q:?}");
@@ -55,7 +55,7 @@ impl Model {
    }
 }

-pub(super) fn local_plane(plane: &PlaneRef, depth: usize) -> bool {
+fn local_plane(plane: &PlaneRef, depth: usize) -> bool {
    if depth > crate::MAX_PLACEMENT_DEPTH {
        return false;
    }
@@ -240,12 +240,8 @@ fn same_feature(a: &Feature, b: &Feature) -> bool {
                a == b
                    && meshes.len() == other.len()
                    && meshes.iter().zip(other).all(|(a, b)| {
-                        let crate::MeshData { name, positions, triangles, corner_normals, color } = a;
-                        *name == b.name
-                            && *color == b.color
-                            && Arc::ptr_eq(positions, &b.positions)
-                            && Arc::ptr_eq(triangles, &b.triangles)
-                            && Arc::ptr_eq(corner_normals, &b.corner_normals)
+                        let crate::MeshData { name, positions, triangles, color } = a;
+                        *name == b.name && *color == b.color && Arc::ptr_eq(positions, &b.positions) && Arc::ptr_eq(triangles, &b.triangles)
                    })
            }
            (
@@ -1,9 +1,7 @@
 //! Progress and cooperative cancellation for a long evaluation (opening a large design) run
 //! off the window thread. The caller wraps the work in [`watch`]; the timeline's evaluation
 //! loop reports each feature it reaches and, once [`Progress::cancel`] is called, skips the
-//! rest. The kernel work of the feature it is on stops too, at the kernel's next check (#10577):
-//! a long boolean no longer runs to its end after Cancel. Nothing changes for evaluations that
-//! are not watched.
+//! rest. Nothing changes for evaluations that are not watched.

 use std::cell::RefCell;
 use std::sync::{
@@ -30,8 +28,6 @@ pub struct Progress {
    partial_wanted: AtomicBool,
    /// The latest such model and when it was offered.
    partial: std::sync::Mutex<(Option<Partial>, Option<web_time::Instant>)>,
-    /// Over the kernel work of the watched evaluation ([`watch`]): stopped on Cancel.
-    stop: solidcraft_kernel::Stop,
 }

 /// The model as far as an evaluation has built it, placed in the world as the design places it.
@@ -58,18 +54,14 @@ impl Default for Progress {
            item: std::sync::Mutex::new(None),
            partial_wanted: AtomicBool::new(false),
            partial: std::sync::Mutex::new((None, None)),
-            stop: solidcraft_kernel::Stop::new(),
        }
    }
 }

 impl Progress {
-    /// Ask the watched evaluation to stop at its next feature, and its kernel work at the
-    /// kernel's next check. Marked cancelled first: a feature its stopped kernel call fails is
-    /// then never kept in the evaluation cache ([`Evaluation::cancelled`]).
+    /// Ask the watched evaluation to stop at its next feature.
    pub fn cancel(&self) {
        self.cancelled.store(true, Ordering::Relaxed);
-        self.stop.stop();
    }
    pub fn is_cancelled(&self) -> bool {
        self.cancelled.load(Ordering::Relaxed)
@@ -146,7 +138,6 @@ thread_local! {
 /// Run `f` with `progress` watching every evaluation it makes on this thread.
 pub fn watch<R>(progress: Arc<Progress>, f: impl FnOnce() -> R) -> R {
    let kernel = Arc::new(KernelWatch(progress.clone()));
-    let stop = progress.stop.clone();
    let previous = CURRENT.with(|c| c.replace(Some(Current { progress, depth: 0 })));
    struct Restore(Option<Option<Current>>);
    impl Drop for Restore {
@@ -157,7 +148,7 @@ pub fn watch<R>(progress: Arc<Progress>, f: impl FnOnce() -> R) -> R {
        }
    }
    let _restore = Restore(Some(previous));
-    stop.within(|| solidcraft_kernel::watch::watching(kernel, f))
+    solidcraft_kernel::watch::watching(kernel, f)
 }

 /// Entered at the start of an evaluation; the guard leaves it.
@@ -280,26 +271,6 @@ mod tests {
        assert!(!begin(1).step(0), "the watch ends with its scope");
    }

-    /// Cancel reaches the kernel work of a watched evaluation, even under the token of the
-    /// design whose job it is (#10577): a boolean asked for after it is refused, rather than
-    /// running to its end.
-    #[test]
-    fn cancel_stops_the_kernel_work_under_the_watch() {
-        use solidcore_record::Vec3;
-        // Two cylinders crossing at right angles: a boolean only the kernel answers.
-        let a = solidcraft_kernel::cylinder(Vec3::new(0.0, 0.0, -10.0), Vec3::Z, 3.0, 20.0).unwrap();
-        let b = solidcraft_kernel::cylinder(Vec3::new(-10.0, 0.0, 0.0), Vec3::X, 2.0, 20.0).unwrap();
-        let design = solidcraft_kernel::Stop::new();
-        let union = || design.within(|| solidcraft_kernel::boolean(&a, &b, solidcraft_kernel::BoolOp::Union));
-        let p = Arc::new(Progress::default());
-        assert!(watch(p.clone(), union).is_ok_and(|u| u.is_some()), "a watch alone stops nothing");
-        p.cancel();
-        let stopped = watch(p.clone(), union);
-        assert!(stopped.as_ref().is_err_and(|e| e.to_string().contains("cancel")), "{stopped:?}");
-        assert!(!design.is_stopped(), "the design's own token goes on");
-        assert!(union().is_ok_and(|u| u.is_some()), "and so does its work outside the watch");
-    }
-
    /// The item a command is on reaches its watcher, and only a watcher.
    #[test]
    fn items_go_to_the_watcher() {
@@ -5,7 +5,7 @@ use crate::{
    render_surface::{RenderBodyTarget, bounded_sequence},
 };
 use serde::{Deserialize, Serialize};
-use solidcraft_viewport::clear_coat::ClearCoat;
+use solidcraft_render::clear_coat::ClearCoat;
 use std::collections::BTreeSet;

 /// Matches the existing runtime clear-coat override bound for either executor.
@@ -4,13 +4,13 @@ use std::{fmt, marker::PhantomData};

 use serde::{Deserialize, Serialize};
 use solidcraft_render::{
+    Camera,
    job::{
-        CpuBudget, CpuProgressiveOptions, DenoiseSettings, DirectionalLightOptions, JobOptions, LightingPreset, PunctualLightOptions,
-        RaytraceEnvironmentOptions, RaytraceOptions, RectangleLightOptions, StudioLighting, Sun, ThinLens, ToneMap,
+        CpuBudget, CpuProgressiveOptions, DirectionalLightOptions, JobOptions, LightingPreset, PunctualLightOptions, RaytraceEnvironmentOptions,
+        RaytraceOptions, RectangleLightOptions, StudioLighting, Sun, ThinLens, ToneMap,
    },
    lighting::environment::SkyGradient,
 };
-use solidcraft_viewport::Camera;

 use crate::{
    DocError, Result,
@@ -82,18 +82,6 @@ impl RenderJob {
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
 #[serde(default, deny_unknown_fields)]
 pub struct CpuJob {
-    /// Zero selects a bounded native worker count; one retains serial transport.
-    #[serde(skip_serializing_if = "zero_threads")]
-    pub threads: u16,
-    /// Spend HDR lighting samples according to captured environment radiance.
-    #[serde(skip_serializing_if = "std::ops::Not::not")]
-    pub environment_importance_sampling: bool,
-    /// Explicit ray-footprint mip and bounded anisotropic texture filtering.
-    #[serde(skip_serializing_if = "std::ops::Not::not")]
-    pub texture_filtering: bool,
-    /// Approximate the missing microfacet bounces of rough isotropic conductors.
-    #[serde(skip_serializing_if = "std::ops::Not::not")]
-    pub metal_energy_compensation: bool,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub caustics: Option<solidcraft_render::job::CausticOptions>,
    #[serde(skip_serializing_if = "Option::is_none")]
@@ -110,13 +98,6 @@ pub struct CpuJob {
    pub path: Option<solidcraft_render::job::CpuPathOptions>,
    #[serde(skip_serializing_if = "std::ops::Not::not")]
    pub denoise: bool,
-    #[serde(skip_serializing_if = "DenoiseSettings::is_default")]
-    pub denoise_settings: DenoiseSettings,
-    #[serde(skip_serializing_if = "std::ops::Not::not")]
-    pub denoise_diagnostics: bool,
-    /// Internal scale; saved width and height remain the exported image size.
-    #[serde(skip_serializing_if = "solidcraft_render::job::single_supersample")]
-    pub supersampling: u32,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub lens: Option<ThinLens>,
    #[serde(skip_serializing_if = "Option::is_none")]
@@ -148,10 +129,6 @@ pub struct CpuJob {
 impl Default for CpuJob {
    fn default() -> Self {
        Self {
-            threads: 0,
-            environment_importance_sampling: false,
-            texture_filtering: false,
-            metal_energy_compensation: false,
            caustics: None,
            volume: None,
            sun: None,
@@ -159,9 +136,6 @@ impl Default for CpuJob {
            aging: Default::default(),
            adaptive: None,
            denoise: false,
-            denoise_settings: DenoiseSettings::default(),
-            denoise_diagnostics: false,
-            supersampling: 1,
            path: None,
            lens: None,
            output: None,
@@ -226,10 +200,6 @@ impl CpuJob {
            })
            .transpose()?;
        let options = RaytraceOptions {
-            threads: self.threads,
-            environment_importance_sampling: self.environment_importance_sampling,
-            texture_filtering: self.texture_filtering,
-            metal_energy_compensation: self.metal_energy_compensation,
            caustics: self.caustics,
            volume: self.volume,
            sun: self.sun.map(Box::new),
@@ -237,9 +207,6 @@ impl CpuJob {
            aging: (!aging.is_empty()).then(|| Box::new(aging)),
            adaptive: self.adaptive.map(Box::new),
            denoise: self.denoise,
-            denoise_settings: self.denoise_settings,
-            denoise_diagnostics: self.denoise_diagnostics,
-            supersampling: self.supersampling,
            path: self.path,
            lens: self.lens,
            output: self.output.clone(),
@@ -266,12 +233,6 @@ impl CpuJob {
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
 #[serde(default, deny_unknown_fields)]
 pub struct GpuJob {
-    /// Explicit ray-footprint mip and bounded anisotropic texture filtering.
-    #[serde(skip_serializing_if = "std::ops::Not::not")]
-    pub texture_filtering: bool,
-    /// Approximate the missing microfacet bounces of rough isotropic conductors.
-    #[serde(skip_serializing_if = "std::ops::Not::not")]
-    pub metal_energy_compensation: bool,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub caustics: Option<solidcraft_render::job::CausticOptions>,
    #[serde(skip_serializing_if = "crate::render_aging::SavedAgingStack::is_empty")]
@@ -294,13 +255,6 @@ pub struct GpuJob {
    pub seed: u32,
    pub tone_map: ToneMap,
    pub denoise: bool,
-    #[serde(skip_serializing_if = "DenoiseSettings::is_default")]
-    pub denoise_settings: DenoiseSettings,
-    #[serde(skip_serializing_if = "std::ops::Not::not")]
-    pub denoise_diagnostics: bool,
-    /// Internal scale; saved width and height remain the exported image size.
-    #[serde(skip_serializing_if = "solidcraft_render::job::single_supersample")]
-    pub supersampling: u32,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub lens: Option<ThinLens>,
    #[serde(skip_serializing_if = "Option::is_none")]
@@ -315,8 +269,6 @@ impl Default for GpuJob {
    fn default() -> Self {
        let options = JobOptions::default();
        Self {
-            texture_filtering: false,
-            metal_energy_compensation: false,
            caustics: None,
            aging: Default::default(),
            nested_media: options.nested_media,
@@ -331,9 +283,6 @@ impl Default for GpuJob {
            seed: options.seed,
            tone_map: options.tone_map,
            denoise: options.denoise,
-            denoise_settings: options.denoise_settings,
-            denoise_diagnostics: options.denoise_diagnostics,
-            supersampling: options.supersampling,
            lens: options.lens,
            lighting: options.lighting,
            environment: None,
@@ -368,8 +317,6 @@ impl GpuJob {
            environment.validate()?;
        }
        let options = JobOptions {
-            texture_filtering: self.texture_filtering,
-            metal_energy_compensation: self.metal_energy_compensation,
            caustics: self.caustics,
            aging: self.aging.parameters_only()?,
            nested_media: self.nested_media,
@@ -384,9 +331,6 @@ impl GpuJob {
            seed: self.seed,
            tone_map: self.tone_map,
            denoise: self.denoise,
-            denoise_settings: self.denoise_settings,
-            denoise_diagnostics: self.denoise_diagnostics,
-            supersampling: self.supersampling,
            lens: self.lens,
            lighting: self.lighting,
            exposure_ev,
@@ -421,10 +365,6 @@ impl SkyEnvironment {
    }
 }

-fn zero_threads(threads: &u16) -> bool {
-    *threads == 0
-}
-
 fn unit() -> f64 {
    1.0
 }
@@ -538,42 +478,3 @@ mod cpu_volume_portable_tests {
        assert_eq!(serde_json::to_value(job).unwrap(), old);
    }
 }
-
-#[cfg(test)]
-#[test]
-fn portable_quality_controls_preserve_explicit_values_and_legacy_defaults() {
-    let old_cpu: CpuJob = serde_json::from_str("{}").unwrap();
-    let old_gpu: GpuJob = serde_json::from_str("{}").unwrap();
-    assert_eq!(old_cpu.threads, 0);
-    assert_eq!((old_cpu.supersampling, old_gpu.supersampling), (1, 1));
-    assert_eq!(old_cpu.denoise_settings, DenoiseSettings::default());
-    assert_eq!(old_gpu.denoise_settings, DenoiseSettings::default());
-    assert!(!old_cpu.denoise_diagnostics && !old_gpu.denoise_diagnostics);
-    assert!(old_cpu.denoise_settings.optical_filter && old_gpu.denoise_settings.optical_filter);
-    let opaque_only = DenoiseSettings { optical_filter: false, ..Default::default() };
-    for wire in [
-        serde_json::to_value(CpuJob { denoise: true, denoise_settings: opaque_only, ..Default::default() }).unwrap(),
-        serde_json::to_value(GpuJob { denoise: true, denoise_settings: opaque_only, ..Default::default() }).unwrap(),
-    ] {
-        assert_eq!(wire["denoise_settings"]["optical_filter"], false);
-    }
-    let filter = DenoiseSettings { passes: 2, strength: 0.35, firefly_suppression: false, optical_filter: false };
-    let cpu = CpuJob { threads: 4, supersampling: 2, denoise: true, denoise_settings: filter, denoise_diagnostics: true, ..Default::default() };
-    let gpu = GpuJob { samples: 128, supersampling: 2, denoise: true, denoise_settings: filter, denoise_diagnostics: true, ..Default::default() };
-    let cpu_reopened: CpuJob = serde_json::from_value(serde_json::to_value(&cpu).unwrap()).unwrap();
-    let gpu_reopened: GpuJob = serde_json::from_value(serde_json::to_value(&gpu).unwrap()).unwrap();
-    assert_eq!(cpu_reopened, cpu);
-    assert_eq!(gpu_reopened, gpu);
-    let cpu_runtime = cpu_reopened.to_runtime(-1.0).unwrap();
-    let gpu_runtime = gpu_reopened.to_runtime(-1.0).unwrap();
-    assert_eq!((cpu_runtime.threads, cpu_runtime.supersampling), (4, 2));
-    assert_eq!((gpu_runtime.samples, gpu_runtime.supersampling), (128, 2));
-    assert_eq!(cpu_runtime.denoise_settings, filter);
-    assert_eq!(gpu_runtime.denoise_settings, filter);
-    assert!(!cpu_runtime.denoise_settings.optical_filter && !gpu_runtime.denoise_settings.optical_filter);
-    assert!(cpu_runtime.denoise_diagnostics && gpu_runtime.denoise_diagnostics);
-    assert!(CpuJob { threads: 65, ..cpu.clone() }.validate(0.0).is_err());
-    assert!(GpuJob { supersampling: 3, ..gpu.clone() }.validate(0.0).is_err());
-    assert!(CpuJob { denoise_settings: DenoiseSettings { strength: f64::NAN, ..filter }, ..cpu }.validate(0.0).is_err());
-    assert!(GpuJob { denoise_settings: DenoiseSettings { passes: 4, ..filter }, ..gpu }.validate(0.0).is_err());
-}
@@ -6,8 +6,10 @@ use crate::{
 };
 use serde::{Deserialize, Serialize};
 use solidcore_record::Vec3;
-use solidcraft_render::transmission::{Transmission, subsurface::Subsurface};
-use solidcraft_viewport::surface::OpaqueSurface;
+use solidcraft_render::{
+    surface::OpaqueSurface,
+    transmission::{Transmission, subsurface::Subsurface},
+};
 use std::collections::BTreeSet;

 #[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
@@ -145,8 +147,8 @@ impl OpticalBindings {
        self.0.iter()
    }
    pub fn validate(&self) -> Result<()> {
-        if self.0.len() > solidcraft_render::job::MAX_OPTICAL_TARGETS || self.0.capacity() > solidcraft_render::job::MAX_OPTICAL_TARGETS {
-            return Err(DocError::Invalid("at most 128 portable optical targets".into()));
+        if self.0.len() > 32 || self.0.capacity() > 32 {
+            return Err(DocError::Invalid("at most 32 portable optical targets".into()));
        }
        let mut seen = BTreeSet::new();
        for binding in &self.0 {
@@ -162,7 +164,7 @@ impl OpticalBindings {
    }
    pub fn validate_for_cpu_path(&self, path: bool) -> Result<()> {
        self.validate()?;
-        if !path && self.len() > 8 {
+        if self.len() > 8 {
            return Err(DocError::Invalid("CPU supports at most eight certified optical targets".into()));
        }
        for binding in self.iter() {
@@ -181,11 +183,11 @@ impl OpticalBindings {
            }
            *old = binding;
        } else {
-            if self.0.len() >= solidcraft_render::job::MAX_OPTICAL_TARGETS {
-                return Err(DocError::Invalid("at most 128 portable optical targets".into()));
+            if self.0.len() >= 32 {
+                return Err(DocError::Invalid("at most 32 portable optical targets".into()));
            }
            self.0.try_reserve_exact(1).map_err(|_| DocError::Invalid("optical binding reservation failed".into()))?;
-            if self.0.capacity() > solidcraft_render::job::MAX_OPTICAL_TARGETS {
+            if self.0.capacity() > 32 {
                return Err(DocError::Invalid("optical capacity exceeds its bound".into()));
            }
            self.0.push(binding);
@@ -200,7 +202,7 @@ impl OpticalBindings {
 }
 impl<'de> Deserialize<'de> for OpticalBindings {
    fn deserialize<D: serde::Deserializer<'de>>(d: D) -> std::result::Result<Self, D::Error> {
-        let result = Self(bounded_sequence::<D, SavedOptics, { solidcraft_render::job::MAX_OPTICAL_TARGETS }>(d)?);
+        let result = Self(bounded_sequence::<D, SavedOptics, 32>(d)?);
        result.validate().map_err(serde::de::Error::custom)?;
        Ok(result)
    }
@@ -210,25 +212,6 @@ impl<'de> Deserialize<'de> for OpticalBindings {
 mod advanced_model_contract_tests {
    use super::*;
    use solidcraft_render::glass_model::{Dispersion, GlassModel, ThinFilm};
-    #[test]
-    fn portable_optics_keep_128_targets_and_legacy_cpu_keeps_its_explicit_limit() {
-        let mut bindings = OpticalBindings::default();
-        for feature in 1..=solidcraft_render::job::MAX_OPTICAL_TARGETS {
-            let binding = SavedOptics {
-                target: RenderBodyTarget { definition: "OPUS".into(), feature: feature as u64, component: 0, occurrence_path: Vec::new() },
-                optics: OpticalMaterial::default(),
-            };
-            bindings.set(binding, false).unwrap();
-        }
-        bindings.validate_for_cpu_path(true).unwrap();
-        assert!(bindings.validate_for_cpu().is_err());
-        let raw = serde_json::to_value(&bindings).unwrap();
-        assert_eq!(serde_json::from_value::<OpticalBindings>(raw.clone()).unwrap(), bindings);
-        let mut too_many = raw.as_array().unwrap().clone();
-        too_many.push(too_many[0].clone());
-        assert!(serde_json::from_value::<OpticalBindings>(serde_json::Value::Array(too_many)).is_err());
-    }
-
    #[test]
    fn advanced_optics_keep_every_authored_number_through_saved_and_cpu_lowering() {
        let model = GlassModel {
@@ -255,32 +238,14 @@ mod advanced_model_contract_tests {
    #[test]
    fn caustic_quality_is_portable_between_both_saved_jobs_and_runtime_requests() {
        use crate::render_job::{CpuJob, GpuJob};
-        let caustics = Some(solidcraft_render::job::CausticOptions {
-            photons: 8192,
-            radius_mm: 0.4,
-            max_depth: 12,
-            seed: 381,
-            area_lights: false,
-            environment: false,
-            guided_emission: true,
-            refresh_per_pass: true,
-            power_weighted_sources: true,
-        });
-        let cpu = CpuJob {
-            caustics,
-            environment_importance_sampling: true,
-            path: Some(Default::default()),
-            progressive: Some(Default::default()),
-            ..Default::default()
-        };
+        let caustics = Some(solidcraft_render::job::CausticOptions { photons: 8192, radius_mm: 0.4, max_depth: 12, seed: 381 });
+        let cpu = CpuJob { caustics, path: Some(Default::default()), progressive: Some(Default::default()), ..Default::default() };
        let gpu = GpuJob { caustics, ..Default::default() };
        assert_eq!(cpu.to_runtime(0.0).unwrap().caustics, caustics);
-        assert!(cpu.to_runtime(0.0).unwrap().environment_importance_sampling);
        assert_eq!(gpu.to_runtime(0.0).unwrap().caustics, caustics);
        assert_eq!(serde_json::from_value::<CpuJob>(serde_json::to_value(&cpu).unwrap()).unwrap(), cpu);
        assert_eq!(serde_json::from_value::<GpuJob>(serde_json::to_value(&gpu).unwrap()).unwrap(), gpu);
        assert!(serde_json::to_value(CpuJob::default()).unwrap().get("caustics").is_none());
-        assert!(serde_json::to_value(CpuJob::default()).unwrap().get("environment_importance_sampling").is_none());
        assert!(serde_json::to_value(GpuJob::default()).unwrap().get("caustics").is_none());
    }
 }
@@ -4,8 +4,7 @@ use std::collections::BTreeMap;

 use serde::{Deserialize, Serialize};
 use solidcore_record::Vec3;
-use solidcraft_render::{BackendId, RenderFormat, RenderLimits, RenderMode};
-use solidcraft_viewport::{Camera, UpAxis};
+use solidcraft_render::{BackendId, Camera, RenderFormat, RenderLimits, RenderMode, UpAxis};

 pub use crate::render_job::{CpuJob, GpuJob, RenderJob, SkyEnvironment};
 use crate::{DocError, Result};
@@ -213,27 +212,15 @@ impl RenderSetup {
                ));
            }
            job.validate(&self.camera, self.exposure_ev)?;
-            if let RenderJob::GpuPath { options, .. } = job {
-                solidcraft_render::job::supersampled_dimensions(self.width, self.height, options.supersampling)
-                    .map_err(|e| DocError::Invalid(e.to_string()))?;
-            }
            if let RenderJob::CpuRaytrace { options, .. } = job {
-                // Existing native-size Workstation intent remains readable. X2
-                // uses the bounded 8K output envelope and pays for its internal grid.
-                let (trace_width, trace_height) = if options.supersampling == 1 && !options.denoise && !options.denoise_diagnostics {
-                    (self.width, self.height)
-                } else {
-                    solidcraft_render::job::supersampled_dimensions(self.width, self.height, options.supersampling)
-                        .map_err(|e| DocError::Invalid(e.to_string()))?
-                };
-                if options.denoise || options.denoise_diagnostics {
-                    solidcraft_render::job::validate_cpu_denoise_image(trace_width, trace_height).map_err(|e| DocError::Invalid(e.to_string()))?;
+                if options.denoise {
+                    solidcraft_render::job::validate_cpu_denoise_image(self.width, self.height).map_err(|e| DocError::Invalid(e.to_string()))?;
                }
                options
                    .budget
                    .validate_image(
-                        trace_width,
-                        trace_height,
+                        self.width,
+                        self.height,
                        solidcraft_render::job::cpu_camera_sampling(options.progressive, options.adaptive, options.budget)
                            .map_err(|e| DocError::Invalid(e.to_string()))?,
                    )
@@ -593,7 +580,7 @@ mod tests {
            exposure_ev: 2.5,
            mode: RenderMode::Final,
            format: RenderFormat::Exr,
-            camera: Camera { up: solidcraft_viewport::UpAxis::Y, ..Default::default() },
+            camera: Camera { up: solidcraft_render::UpAxis::Y, ..Default::default() },
            ..Default::default()
        };
        Arc::make_mut(&mut loaded.render).setups.insert("Studio".into(), setup);
@@ -683,7 +670,7 @@ mod tests {
        gpu(3840, 2160).validate().unwrap();
        gpu(3840, 2160).validate_for_gpu().unwrap();
        let message = gpu(8193, 8193).validate().unwrap_err().to_string();
-        assert!(message.contains("(8192 pixels per side, 33554432 pixels in all)"), "{message}");
+        assert!(message.contains("(8192 pixels per side, 16777216 pixels in all)"), "{message}");
        assert!(!message.contains("CPU resource profile"), "{message}");
    }

@@ -896,7 +883,7 @@ mod tests {
            json!({"job":{"method":"gpu_path","options":{"environment":{"kind":"hdr","path":"not-portable.hdr"}}}}),
            json!({"job":{"method":"gpu_path","options":{"exposure_ev":0}}}),
            json!({"job":{"method":"gpu_path","options":{"samples":0}}}),
-            json!({"job":{"method":"gpu_path","options":{"max_depth":65}}}),
+            json!({"job":{"method":"gpu_path","options":{"max_depth":17}}}),
            json!({"job":{"method":"gpu_path","options":{"environment":{"kind":"sky","intensity":101}}}}),
            json!({"job":{"method":"gpu_path","options":{"lighting":{"environment":[-1,0,0]}}}}),
            json!({"camera":Camera { fov: 0.0, ..Default::default() },"job":{"method":"gpu_path","options":{"lens":{"aperture_radius_mm":1,"focus_distance_mm":10}}}}),
@@ -1034,7 +1021,7 @@ mod cpu_budget_tests {
        let old = CpuJob::default();
        assert!(old.path.is_none());
        assert!(serde_json::to_value(&old).unwrap().get("path").is_none());
-        for depth in [1, 8, 16, 64] {
+        for depth in [1, 8, 16] {
            let setup:RenderSetup=serde_json::from_value(json!({"width":8,"height":8,"job":{"method":"cpu_raytrace","options":{"path":{"max_depth":depth},"progressive":{"samples_per_pixel":7,"seed":9}}}})).unwrap();
            setup.validate().unwrap();
            let mut document = crate::Document::default();
@@ -1045,7 +1032,7 @@ mod cpu_budget_tests {
        }
        for raw in [
            json!({"path":{"max_depth":0},"progressive":{"samples_per_pixel":7,"seed":9}}),
-            json!({"path":{"max_depth":65},"progressive":{"samples_per_pixel":7,"seed":9}}),
+            json!({"path":{"max_depth":17},"progressive":{"samples_per_pixel":7,"seed":9}}),
            json!({"path":{"max_depth":8}}),
            json!({"path":{"max_depth":8},"progressive":{"samples_per_pixel":7,"seed":9},"shadows":false}),
        ] {
@@ -1086,7 +1073,7 @@ fn cpu_denoise_saved_flag_roundtrips_offline_and_keeps_false_omitted() {
    setup.validate().unwrap();
    let Some(RenderJob::CpuRaytrace { options, .. }) = &mut setup.job else { panic!("CPU job expected") };
    options.denoise = true;
-    assert_eq!(setup.validate().unwrap_err(), DocError::Invalid("LimitExceeded: output requires 1..8192 sides and at most 33554432 pixels".into()),);
+    assert!(setup.validate().unwrap_err().to_string().contains("CPU denoising"));
 }

 #[cfg(test)]
@@ -1233,9 +1220,7 @@ mod cpu_adaptive_saved_tests {
            serde_json::from_value::<RenderSetup>(cap).unwrap().validate().is_err(),
            "16 pilots cannot be hidden outside Compact's 64-sample cap"
        );
-        for (budget, maximum) in
-            [(CpuBudget::Compact, 64), (CpuBudget::Studio, 1024), (CpuBudget::Workstation, solidcraft_render::job::MAX_CPU_SAMPLES_PER_PIXEL)]
-        {
+        for (budget, maximum) in [(CpuBudget::Compact, 64), (CpuBudget::Studio, 1024), (CpuBudget::Workstation, 4096)] {
            let mut runtime = runtime.clone();
            runtime.budget = budget;
            runtime.progressive = Some(CpuProgressiveOptions { samples_per_pixel: maximum - 16, seed: 81 });
@@ -1400,39 +1385,3 @@ mod cpu_celestial_saved_tests {
        assert!(defaults.get("sun").is_none() && defaults.get("sky").is_none());
    }
 }
-
-#[test]
-fn render_quality_saved_intent_preserves_output_size_and_validates_the_internal_grid() {
-    let gpu: RenderSetup = serde_json::from_value(serde_json::json!({
-        "width":7680,"height":4320,"job":{"method":"gpu_path","options":{
-            "samples":128,"supersampling":2,"denoise":true,"denoise_diagnostics":true,
-            "denoise_settings":{"passes":2,"strength":0.5,"firefly_suppression":false}
-        }}
-    }))
-    .unwrap();
-    gpu.validate().unwrap();
-    let reopened: RenderSetup = serde_json::from_value(serde_json::to_value(&gpu).unwrap()).unwrap();
-    assert_eq!(reopened, gpu);
-    assert_eq!((reopened.width, reopened.height), (7680, 4320));
-    let mut cpu: RenderSetup = serde_json::from_value(serde_json::json!({
-        "width":7680,"height":4320,"job":{"method":"cpu_raytrace","options":{
-            "threads":4,"budget":"workstation","progressive":{"samples_per_pixel":128},"supersampling":2
-        }}
-    }))
-    .unwrap();
-    cpu.validate().unwrap();
-    assert_eq!((cpu.width, cpu.height), (7680, 4320));
-    cpu.width = 1024;
-    cpu.height = 1024;
-    let Some(RenderJob::CpuRaytrace { options, .. }) = &mut cpu.job else { panic!("expected CPU job") };
-    options.budget = solidcraft_render::job::CpuBudget::Compact;
-    options.progressive.as_mut().unwrap().samples_per_pixel = 8;
-    assert!(cpu.validate().is_err(), "X2 must charge four million internal pixels to Compact's progressive limit");
-    let Some(RenderJob::CpuRaytrace { options, .. }) = &mut cpu.job else { panic!("expected CPU job") };
-    options.supersampling = 1;
-    cpu.validate().unwrap();
-    let mut invalid = gpu;
-    invalid.width = 8193;
-    invalid.height = 1;
-    assert!(invalid.validate().is_err());
-}
@@ -3216,106 +3216,11 @@ impl SheetBody {
        left.into_iter().min_by(|x, y| away(x).total_cmp(&away(y)))
    }

-    /// The edge of a cut-out that opens onto a panel's outline (a notch: a cut across a flange's
-    /// wall leaves its top slanted) nearest `pick` (a world point), when it is nearer than every
-    /// edge of the panels' outlines and within `reach` of the pick: the panel, the cut-out's index
-    /// in `holes`, and the panel's material without it (its outline, with the notch). `None` for a
-    /// pick nearer an outline, or on a cut-out inside a panel or one that parts it.
-    fn notch_at(&self, pick: Vec3, reach: f64) -> Result<Option<(Option<usize>, usize, Region2)>> {
-        let Some(outline) = self.edge_at(pick).map(|e| e.4) else { return Ok(None) };
-        if self.holes.is_empty() || outline <= 1e-9 {
-            return Ok(None);
-        }
-        let mut work = FlatWork::new();
-        let mut best: Option<(f64, Option<usize>, usize, Region2)> = None;
-        for (pi, panel) in self.panels() {
-            let Some(inv) = mat_inverse(&self.world(pi)) else { continue };
-            let q = apply_point(&inv, pick);
-            let q2 = Vec2::new(q.x, q.y);
-            let panel_pts = dedup(&panel.outer.ccw().polyline(1e-3));
-            let panel_box = panel_pts.bounds().inflated(reach);
-            if !panel_box.contains(q2) {
-                continue;
-            }
-            for (k, hole) in self.holes.iter().enumerate() {
-                // Only a cut-out the pick is near can hold its edge.
-                if !hole.outer.polyline(1e-3).bounds().inflated(reach).contains(q2) {
-                    continue;
-                }
-                let left = material_boolean(std::slice::from_ref(&panel), std::slice::from_ref(hole), kernel::BoolOp::Cut, &mut work)?;
-                let [material] = left.as_slice() else { continue };
-                if material.holes.len() != panel.holes.len() || (material.area() - panel.area()).abs() <= TOUCH_AREA {
-                    continue;
-                }
-                let pts = material.outer.ccw().polyline(1e-3);
-                let m = pts.len();
-                for i in 0..m {
-                    let (Some(&a), Some(&b)) = (pts.get(i), pts.get((i + 1) % m)) else { continue };
-                    let d = b - a;
-                    if d.len() < 1e-9 || near_outline(&panel_pts, (a + b) * 0.5, 1e-6) {
-                        continue;
-                    }
-                    let t = ((q2 - a).dot(d) / d.len2()).clamp(0.0, 1.0);
-                    let flat = ((a + d * t) - q2).len();
-                    let dist = flat.hypot(q.z.abs().min((q.z - self.t).abs()));
-                    if dist <= reach && dist < outline - 1e-9 && best.as_ref().is_none_or(|x| dist < x.0) {
-                        best = Some((dist, pi, k, material.clone()));
-                    }
-                }
-            }
-        }
-        Ok(best.map(|(_, pi, k, material)| (pi, k, material)))
-    }
-
-    /// Before an edge flange on the edge of a cut-out that opens onto a panel's outline: that
-    /// cut-out becomes the panel's outline (the base's, or a flange panel's shape), so the flange
-    /// runs along its edge and the cut-out takes nothing of the new flange, which lies where it
-    /// was in the flat. Refused while the cut-out also takes material of another panel or a bend,
-    /// or overlaps another cut-out.
-    /// Says whether the pick was on such an edge.
-    fn open_notch(&mut self, pick: Vec3) -> Result<bool> {
-        let Some((pi, k, material)) = self.notch_at(pick, self.t * 2.0 + 1e-3)? else { return Ok(false) };
-        let hole = self.holes.get(k).cloned().ok_or_else(|| DocError::Invalid("cut-out".into()))?;
-        let mut work = FlatWork::new();
-        let mut others: Vec<Region2> = self.panels().into_iter().filter(|(p, _)| *p != pi).map(|(_, r)| r).collect();
-        others.extend(self.flanges.iter().map(|f| self.zone(f)));
-        others.extend(self.holes.iter().enumerate().filter(|(j, _)| *j != k).map(|(_, h)| h.clone()));
-        for other in &others {
-            let common = material_boolean(std::slice::from_ref(other), std::slice::from_ref(&hole), kernel::BoolOp::Intersect, &mut work)?;
-            if common.iter().map(Region2::area).sum::<f64>() > TOUCH_AREA {
-                return Err(DocError::Invalid(
-                    "not supported yet: a flange on the edge of a cut-out that also cuts another panel, a bend or another cut-out".into(),
-                ));
-            }
-        }
-        self.set_panel_region(pi, material)?;
-        self.holes.remove(k);
-        Ok(true)
-    }
-
-    /// Give a panel (None = the base) this flat region: a flange panel takes its outline as its
-    /// shape (and, with arcs in it, as drawn).
-    fn set_panel_region(&mut self, panel: Option<usize>, region: Region2) -> Result<()> {
-        match panel {
-            None => self.base = region,
-            Some(i) => {
-                let lines = region.outer.segs.iter().all(|s| matches!(s, Seg2::Line { .. }));
-                let outer = region.outer.ccw();
-                let shape = dedup(&outer.polyline(1e-3)).into_vec();
-                let f = self.flanges.get_mut(i).ok_or_else(|| DocError::Invalid("flange".into()))?;
-                f.shape = Some(shape);
-                f.exact = (!lines).then_some(outer);
-            }
-        }
-        Ok(())
-    }
-
    /// Trim a panel's edge a→b back by `by` (toward the panel interior). Where a→b is what a
    /// cut-out left of a longer edge, `cut_at` says at which of its ends (start, end) the
-    /// cut-out is: the base keeps its edge beyond such an end, and so does a flange panel when
-    /// a→b is the edge of a cut-out that `open_notch` made its outline (`notch`). Otherwise a
-    /// flange panel's far edge moves whole.
-    fn trim(&mut self, panel: Option<usize>, a: Vec2, b: Vec2, by: f64, cut_at: (bool, bool), notch: bool) -> Result<()> {
+    /// cut-out is: the base keeps its edge beyond such an end. A flange panel's far edge moves
+    /// whole.
+    fn trim(&mut self, panel: Option<usize>, a: Vec2, b: Vec2, by: f64, cut_at: (bool, bool)) -> Result<()> {
        if by.abs() < 1e-12 {
            return Ok(());
        }
@@ -3382,23 +3287,10 @@ impl SheetBody {
                if inward.dot(original.n) > 0.99 {
                    return Err(DocError::Invalid("pick a free panel edge, not its connection to the existing bend".into()));
                }
-                if notch {
-                    // Only the strip along a→b goes: the panel keeps its outline beyond both ends.
-                    let region = self.panel(original);
-                    let strip = rect(a, b, b + inward * by, a + inward * by);
-                    let left = material_boolean(&[region], &[strip], kernel::BoolOp::Cut, &mut FlatWork::new())?;
-                    let [kept] = left.as_slice() else {
-                        return Err(DocError::Invalid("not supported yet: a flange setback that splits the panel".into()));
-                    };
-                    let kept = kept.clone();
-                    return self.set_panel_region(panel, kept);
-                }
-                let partial = cut_at.0 || cut_at.1;
-                let shaped = original.shape.is_some() || original.exact.is_some();
-                if side && partial {
+                if side && (cut_at.0 || cut_at.1) {
                    return Err(DocError::Invalid("not supported yet: a partial side-edge flange beside a cut-out".into()));
                }
-                let clipped = if side || shaped {
+                let clipped = if side || original.shape.is_some() || original.exact.is_some() {
                    // A panel with curves gives way to its 0.001 mm chords here.
                    let region = self.panel(original);
                    let points = clip(&region.outer.ccw().polyline(1e-3), a + inward * by, inward);
@@ -3618,28 +3510,18 @@ impl SheetBody {
            }
            sizes.push((setback, leg));
        }
-        // An edge a cut-out left on a panel's outline: the cut-out becomes that outline first.
-        // On the base's outline that is `open_base_to` (#5306): its pick is on an edge of the base
-        // and its flange cuts like any other. On a flange panel it is `open_notch` (#2009). Which
-        // picks are on such an edge is known before any opens: once one has, another pick on the
-        // same cut-out finds its edge on the outline.
-        let reach = self.t * 2.0 + 1e-3;
-        let mut notched = Vec::with_capacity(edges.len());
-        for e in edges {
-            notched.push(self.base_cut_edge_at(e.pick).is_none() && self.notch_at(e.pick, reach)?.is_some());
-        }
+        // A pick on an edge of a notch (a cut-out that opens the base's outline) is on an edge of
+        // the base: its outline runs round the notch first (#5306).
        for e in edges {
            if let Some(k) = self.base_cut_edge_at(e.pick) {
                self.open_base_to(k)?;
-            } else {
-                self.open_notch(e.pick)?;
            }
        }
        // Find every edge before anything moves: of an edge that cut-outs have taken part of, the
        // stretch they leave nearest the pick, and at which of its ends a cut-out is.
        let cuts = self.cut_outs();
        let mut found = Vec::new();
-        for (k, ((e, &(setback, leg)), &notch)) in edges.iter().zip(&sizes).zip(&notched).enumerate() {
+        for (k, (e, &(setback, leg))) in edges.iter().zip(&sizes).enumerate() {
            let (panel, a, b, top, dist) = self.edge_at(e.pick).ok_or_else(|| DocError::Invalid("no sheet edge there".into()))?;
            if dist > self.t * 2.0 + 1e-3 {
                return Err(DocError::Invalid("pick an edge of the sheet's top or bottom face".into()));
@@ -3673,13 +3555,12 @@ impl SheetBody {
                None => self.bend_line_runs(a - outward * setback, d, a.dot(d), b.dot(d)),
                Some(_) => (f64::MIN, f64::MAX),
            };
-            // A cut-out's edge ends where the cut-out does: the panel beyond its ends stays.
-            let cut = (notch || s0 > 1e-9, notch || s1 < a.dist(b) - 1e-9);
+            let cut = (s0 > 1e-9, s1 < a.dist(b) - 1e-9);
            let (a, b) = (if cut.0 { a + d * s0 } else { a }, if cut.1 { a + d * s1 } else { b });
            found.push((panel, a, b, d, top, setback, leg, e.angle, cut, run));
        }
-        for ((panel, a, b, _, _, setback, _, _, cut, _), &notch) in found.iter().zip(&notched) {
-            self.trim(*panel, *a, *b, *setback, *cut, notch)?;
+        for (panel, a, b, _, _, setback, _, _, cut, _) in &found {
+            self.trim(*panel, *a, *b, *setback, *cut)?;
        }
        let mut made = Vec::new();
        // Whether a cut-out has freed each new bend's ends (start, end) of the base beside them.
@@ -3781,8 +3662,8 @@ impl SheetBody {
            made.push(self.flanges.len() - 1);
        }
        let mut notes = Vec::new();
-        for ((&i, &free), &notch) in made.iter().zip(&freed).zip(&notched) {
-            notes.extend(self.relieve_bend_ends(i, free, notch));
+        for (&i, &free) in made.iter().zip(&freed) {
+            notes.extend(self.relieve_bend_ends(i, free));
        }
        notes.extend(self.close_corners(&made, relief));
        notes.extend(self.close_return_corners(&made));
@@ -3893,20 +3774,11 @@ impl SheetBody {
    /// so that the bend and the flange come free of the base, folded and flat. An end that a
    /// cut-out has freed already (`free`: start, end) gets none. Returns a note for every other
    /// such end left as it is.
-    fn relieve_bend_ends(&mut self, i: usize, free: (bool, bool), on_cut_out: bool) -> Vec<String> {
+    fn relieve_bend_ends(&mut self, i: usize, free: (bool, bool)) -> Vec<String> {
        let Some(f) = self.flanges.get(i).cloned() else { return Vec::new() };
-        // The panel the bend leaves: the base, or a flange panel whose edge a cut-out made (the
-        // panel runs on beyond the bend's ends there, as the base does beside a cut-out).
-        let parent = f.parent;
-        let mut panel = match parent {
-            None => self.base.clone(),
-            Some(j) if on_cut_out => match self.flanges.get(j) {
-                Some(pf) => self.panel(pf),
-                None => return Vec::new(),
-            },
-            Some(_) => return Vec::new(),
-        };
-        let what = if parent.is_none() { "base" } else { "panel" };
+        if f.parent.is_some() {
+            return Vec::new();
+        }
        let (width, depth) = (self.bend_relief.0, self.bend_relief.1.max(0.0));
        let reach = self.allowance(&f) + f.leg;
        let (u0, u1) = self.zone_span(&f);
@@ -3914,27 +3786,27 @@ impl SheetBody {
        for (u, s, free) in [(u0, -1.0, free.0), (u1, 1.0, free.1)] {
            // `du` past this end of the bend, `dv` past the bend line (into the flange).
            let at = |du: f64, dv: f64| f.p + f.d * (u + s * du) + f.n * dv;
-            if free || !panel.contains(at(1e-4, 1e-4)) {
+            if free || !self.base.contains(at(1e-4, 1e-4)) {
                continue;
            }
            let cut = if !(width >= MIN_BEND_RELIEF) {
                Err(format!("the relief width {width:.4} mm is below {MIN_BEND_RELIEF} mm"))
-            } else if !panel.contains(at(width + 1e-4, 1e-4)) {
-                Err(format!("a relief {width:.3} mm wide would take away all of the {what} beside the bend"))
+            } else if !self.base.contains(at(width + 1e-4, 1e-4)) {
+                Err(format!("a relief {width:.3} mm wide would take away all of the base beside the bend"))
            } else {
                let relief = rect(at(0.0, -depth), at(width, -depth), at(width, reach + width), at(0.0, reach + width));
-                planar_region(&panel)
-                    .and_then(|kept| material_boolean(&[kept], &[relief], kernel::BoolOp::Cut, &mut FlatWork::new()))
+                planar_region(&self.base)
+                    .and_then(|base| material_boolean(&[base], &[relief], kernel::BoolOp::Cut, &mut FlatWork::new()))
                    .map_err(|e| e.to_string())
                    .and_then(|mut left| match (left.pop(), left.is_empty()) {
-                        (Some(kept), true) if kept.holes.is_empty() => Ok(kept),
-                        _ => Err(format!("it would not leave the {what} in one piece")),
+                        (Some(base), true) if base.holes.is_empty() => Ok(base),
+                        _ => Err("it would not leave the base in one piece".to_string()),
                    })
            };
-            match cut.and_then(|kept| self.set_panel_region(parent, kept.clone()).map(|()| kept).map_err(|e| e.to_string())) {
-                Ok(kept) => panel = kept,
+            match cut {
+                Ok(base) => self.base = base,
                Err(why) => {
-                    let w = apply_point(&self.world(parent), v3(at(0.0, 0.0)));
+                    let w = apply_point(&self.frame_mat(), v3(at(0.0, 0.0)));
                    notes.push(format!("no bend relief at ({:.3}, {:.3}, {:.3}): {why}", w.x, w.y, w.z));
                }
            }
@@ -5317,8 +5189,7 @@ impl SheetBody {
    /// The persistent name of the sheet edge nearest a world point. An edge a notch made (see
    /// `base_cut_edge_at`) has none: no line of the base sketch runs along it.
    pub fn edge_name(&self, pick: Vec3) -> Option<String> {
-        // A cut-out's edge has no name of its own: what is made on it keeps its pick.
-        if self.base_cut_edge_at(pick).is_some() || self.notch_at(pick, self.t * 2.0 + 1e-3).ok().flatten().is_some() {
+        if self.base_cut_edge_at(pick).is_some() {
            return None;
        }
        let (panel, a, b, top, _) = self.edge_at(pick)?;
@@ -5329,11 +5200,6 @@ impl SheetBody {
    /// point of that edge nearest `near`, off its very ends, so that what is made on the edge
    /// knows where along it the pick was.
    pub fn edge_by_name(&self, name: &str, near: Vec3) -> Option<Vec3> {
-        // No cut-out's edge has a name: a pick right on one stays there, whatever name it was
-        // saved with (before such an edge could be picked, it took the outline edge's nearest it).
-        if self.notch_at(near, 1e-4).ok().flatten().is_some() {
-            return Some(near);
-        }
        let mut best: Option<(f64, Vec3)> = None;
        for (pi, r) in self.panels() {
            let pts = r.outer.ccw().polyline(1e-3);
@@ -8462,90 +8328,6 @@ mod tests {
        }
    }

-    #[test]
-    fn an_edge_flange_runs_along_the_edge_a_cut_left_on_a_flanges_panel() {
-        // #2009: a 40 high wall (outside) on the plate's y = 0 edge, its far edge at
-        // y = −(BA + 37) in the flat. A cut takes a triangle off the wall's corner at x = 0: the
-        // wall's edge there runs from a = (0, far + 20) to b = (40, far), 20·√5 long, at obtuse
-        // corners with the wall's side and far edges. A 15 high flange picked on that edge runs
-        // along all of it and no further, and the cut-out becomes the wall's outline. Set inside,
-        // its bend starts 3 inside the edge: the strip under it goes, square to the edge at its
-        // ends, and the wall keeps its corners beyond them. Beside the bend's end at b the wall
-        // gets the rule's 2 × 1 relief, up to the far edge: 7 mm² (the far edge falls 1 for every
-        // 2 along the bend there, from 3 past the bend line). At a the wall's side edge leaves no
-        // room for one, and a note says so. The flange used to land on what the cut left of the
-        // far edge, or run the length of the wall along the moved line.
-        let (ba, quarter) = (std::f64::consts::PI, std::f64::consts::FRAC_PI_2);
-        let far = -(ba + 37.0);
-        let mut wall = plate_with_cuts(&[]);
-        wall.add_flange(Vec3::new(100.0, 0.0, 2.0), 40.0, quarter, 1.0, "outside", false).unwrap();
-        wall.flanges[0].tag = "F3.0".into();
-        let corner = [Vec2::new(-20.0, far - 10.0), Vec2::new(60.0, far - 10.0), Vec2::new(-20.0, far + 30.0)];
-        wall.holes.push(Region2 { outer: Loop2::polygon(&corner).ccw(), holes: vec![] });
-        let pick = apply_point(&wall.world(Some(0)), Vec3::new(20.0, far + 10.0, 2.0));
-        // A cut-out's edge has no name of its own; a pick on one saved with the name of the edge
-        // it was nearest (the far edge) stays on it.
-        assert_eq!(wall.edge_name(pick), None);
-        assert!(wall.edge_by_name("F3.0:far:top", pick).is_some_and(|p| p.dist(pick) < 1e-9));
-        let root5 = 5f64.sqrt();
-        let (d, inward) = (Vec2::new(2.0, -1.0) * (1.0 / root5), Vec2::new(1.0, 2.0) * (1.0 / root5));
-        let len = 20.0 * root5;
-        for (position, setback, relief, notes) in [("outside", 0.0, 0.0, 0), ("inside", 3.0, 7.0, 1)] {
-            let mut s = wall.clone();
-            let (made, said) = s.add_flanges_noted(&[pick], 15.0, quarter, 1.0, position, false).unwrap();
-            assert_eq!(said.len(), notes, "{position}: {said:?}");
-            let f = s.flanges[made[0]].clone();
-            assert!(f.parent == Some(0) && (f.len - len).abs() < 1e-6 && f.d.dist(d) < 1e-9, "{position}: {f:?}");
-            assert!(f.p.dist(Vec2::new(0.0, far + 20.0) + inward * setback) < 1e-6, "{position}: {f:?}");
-            assert!(s.holes.is_empty(), "{position}: {:?}", s.holes);
-            // Flat: the plate, the wall less the cut's 400, the strip and the relief, and
-            // len × (BA + 12) of the new flange.
-            let want = 20_000.0 + 200.0 * (ba + 37.0) - 400.0 - setback * len - relief + len * (ba + 12.0);
-            assert!((flat_area(&s) - want).abs() < 1e-6, "{position}: {} vs {want}", flat_area(&s));
-            holds_the_flat_material(&s, position);
-        }
-    }
-
-    #[test]
-    fn edge_flanges_on_two_edges_of_one_cut_run_along_both() {
-        // #2009: a 40 high wall (outside) on the plate's y = 0 edge, its far edge at
-        // y = −(BA + 37) in the flat. A cut takes a 40 × 15 slot out of the wall's far edge, from
-        // x = 80 to 120. Flanges picked together on both sides of the slot each run along their
-        // side: the first one made opens the slot onto the wall's outline, which must not leave
-        // the second one moving the whole wall's edge (set inside, its bend line would cut the
-        // wall in two). Set inside, each bend starts 3 into the wall and ends beside the wall
-        // past the slot's bottom: there the rule's 2 × 1 relief goes into the wall, 2 wide, from
-        // 1 before the bend line to 2 past the flange's far edge, (BA + 15) × 2 each. Set outside,
-        // the bends lie in the slot and need none.
-        let (ba, quarter) = (std::f64::consts::PI, std::f64::consts::FRAC_PI_2);
-        let far = -(ba + 37.0);
-        let mut wall = plate_with_cuts(&[]);
-        wall.add_flange(Vec3::new(100.0, 0.0, 2.0), 40.0, quarter, 1.0, "outside", false).unwrap();
-        let slot = [Vec2::new(80.0, far - 5.0), Vec2::new(120.0, far - 5.0), Vec2::new(120.0, far + 15.0), Vec2::new(80.0, far + 15.0)];
-        wall.holes.push(Region2 { outer: Loop2::polygon(&slot).ccw(), holes: vec![] });
-        let to_world = wall.world(Some(0));
-        let picks = [80.0, 120.0].map(|x| apply_point(&to_world, Vec3::new(x, far + 7.5, 2.0)));
-        for (position, setback, relief) in [("outside", 0.0, 0.0), ("inside", 3.0, 4.0 * (ba + 15.0))] {
-            let mut s = wall.clone();
-            let (made, said) = s.add_flanges_noted(&picks, 15.0, quarter, 1.0, position, false).unwrap();
-            assert!(said.is_empty(), "{position}: {said:?}");
-            assert!(s.holes.is_empty(), "{position}: {:?}", s.holes);
-            for (&i, x) in made.iter().zip([80.0 - setback, 120.0 + setback]) {
-                let f = &s.flanges[i];
-                assert!(f.parent == Some(0) && f.d.x.abs() < 1e-9 && (f.p.x - x).abs() < 1e-6, "{position}: {f:?}");
-                assert!((f.len - 15.0).abs() < 1e-6, "{position}: {f:?}");
-            }
-            // The wall keeps all but the slot, the strips under the bends and their reliefs.
-            let kept = s.panel(&s.flanges[0]).area();
-            let want = 200.0 * 37.0 - 600.0 - 2.0 * setback * 15.0 - relief;
-            assert!((kept - want).abs() < 1e-6, "{position}: {kept} vs {want}");
-            holds_the_flat_material(&s, position);
-            // Flat: the plate, the wall as kept, and 15 × (BA + 12) of each flange.
-            let want = 20_000.0 + 200.0 * ba + want + 2.0 * 15.0 * (ba + 12.0);
-            assert!((flat_area(&s) - want).abs() < 1e-6, "{position}: {} vs {want}", flat_area(&s));
-        }
-    }
-
    /// A sheet (2 mm, R 1, K 0.5) on an outline of lines, arcs and curves (counter-clockwise).
    fn outlined(segs: Vec<Seg2>) -> SheetBody {
        base_flange("Body1", "AL2", &alu(), Plane::XY, Region2 { outer: Loop2 { segs }, holes: vec![] })
@@ -1177,7 +1177,7 @@ pub fn convert_body(
    let made: Vec<usize> = (0..sh.flanges.len()).collect();
    let mut notes = Vec::new();
    for &i in &made {
-        notes.extend(sh.relieve_bend_ends(i, (false, false), false));
+        notes.extend(sh.relieve_bend_ends(i, (false, false)));
    }
    let corners = sh.corners(&made);
    let mut closed = Vec::with_capacity(corners.len());
@@ -1,4 +1,4 @@
-use solidcore_record::{Plane, Vec2, Vec3};
+use solidcore_record::{Vec2, Vec3};
 use solidcraft_kernel::measure;
 use solidcraft_sketch::{ConstraintKind, Sketch};

@@ -8,33 +8,6 @@ fn rel(a: f64, b: f64) -> f64 {
    (a - b).abs() / b.abs().max(1e-12)
 }

-#[test]
-fn component_lookup_refuses_duplicate_names_and_keeps_explicit_ids() {
-    let mut doc = Document::new("A");
-    let first = doc.add_component(Some("A"), 0).unwrap();
-    let second = doc.add_component(Some("A"), 0).unwrap();
-    assert_eq!(doc.find_component("A"), None, "a duplicate name must not choose the first component or the root");
-    let error = doc.resolve_component("A").unwrap_err().to_string();
-    assert!(error.contains(&format!("matching IDs: {first}, {second}")), "{error}");
-    for id in [first, second] {
-        assert_eq!(doc.find_component(&id.to_string()), Some(id));
-    }
-    for key in ["0", "root", "ROOT"] {
-        assert_eq!(doc.find_component(key), Some(0));
-    }
-    let numeric_name = doc.add_component(Some(&first.to_string()), 0).unwrap();
-    assert_ne!(numeric_name, first);
-    assert_eq!(doc.find_component(&first.to_string()), Some(first));
-    let leading_zero = doc.add_component(Some("01"), 0).unwrap();
-    assert_eq!(doc.find_component("01"), Some(leading_zero));
-    let reopened = Document::from_json(&doc.to_json()).unwrap();
-    assert_eq!(reopened.find_component("A"), None);
-    assert_eq!(reopened.find_component(&second.to_string()), Some(second));
-    assert_eq!(reopened.resolve_component("Missing").unwrap(), None);
-    let named = Document::new("Design");
-    assert_eq!(named.resolve_component("Design").unwrap(), Some(0));
-}
-
 /// 40 x 30 rectangle with its width and height driven by `width` / d2.
 fn plate_doc() -> (Document, u64) {
    let mut doc = Document::new("plate");
@@ -1309,43 +1282,3 @@ fn an_extruded_ellipse_or_spline_is_one_wall_named_by_its_curve() {
        assert_eq!(names(&Document::from_json(&doc.to_json()).unwrap()), first, "reopened");
    }
 }
-
-/// A construction plane of one component carries its place into the sketch of another (#11734):
-/// the sketch lies where the plane is, not where the plane's numbers fall in the sketch's own,
-/// placed component.
-#[test]
-fn a_sketch_on_the_construction_plane_of_another_component_lies_on_it() {
-    let mut doc = Document::new("planes between components");
-    let owner = doc.add_component(Some("Owner"), 0).unwrap();
-    let sketcher = doc.add_component(Some("Sketcher"), 0).unwrap();
-    let placed = rigid(Vec3::new(0.0, 138.0, -3.0), Vec3::ZERO, Vec3::Y, std::f64::consts::PI);
-    doc.occurrences.iter_mut().find(|o| o.component == sketcher).unwrap().transform = placed;
-    let offset = PlaneRef::Offset { base: Box::new(PlaneRef::Origin { name: "XZ".into() }), distance: "60 mm".into() };
-    let plane = doc.add_feature(FeatureKind::ConstructionPlane { plane: offset }, Some("Plane3")).unwrap();
-    doc.feature_mut(plane).unwrap().component = owner;
-    let mut sketch = Sketch::new();
-    let a = sketch.add_point(Vec2::new(0.0, 0.0), None).unwrap();
-    let b = sketch.add_point(Vec2::new(10.0, 5.0), None).unwrap();
-    sketch.add_line_pts(a, b, None).unwrap();
-    let on_plane = FeatureKind::Sketch { plane: PlaneRef::Construction { feature: plane.into() }, sketch };
-    let id = doc.add_feature(on_plane, Some("Sketch3")).unwrap();
-    doc.feature_mut(id).unwrap().component = sketcher;
-
-    let mut model = Model::new();
-    model.evaluate(&doc);
-    assert!(model.result(id).unwrap().error.is_none(), "{:?}", model.result(id).unwrap().error);
-    let state = model.state();
-    let solved = state.sketch(id).unwrap();
-    // The sketch is kept in its own component's frame; placed, it lies on the plane where the
-    // owner puts it (the owner is not moved): the same origin, axes, normal and line end.
-    use solidcraft_geom::prelude::*;
-    let want = Plane::named("XZ").unwrap().offset(60.0);
-    let m = doc.component_transform(sketcher);
-    let close = |a: Vec3, b: Vec3, what: &str| assert!((a - b).len() < 1e-6, "{what}: {a:?} instead of {b:?}");
-    close(crate::apply_point(&m, solved.plane.origin), want.origin, "origin");
-    close(crate::apply_vector(&m, solved.plane.x), want.x, "x axis");
-    close(crate::apply_vector(&m, solved.plane.y), want.y, "y axis");
-    close(crate::apply_vector(&m, solved.plane.normal()), want.normal(), "normal");
-    let end = solved.plane.origin + solved.plane.x * 10.0 + solved.plane.y * 5.0;
-    close(crate::apply_point(&m, end), want.origin + want.x * 10.0 + want.y * 5.0, "line end");
-}
@@ -35,7 +35,6 @@ name = "sketch_target_bench"
 required-features = ["solver-profiling"]

 [dependencies]
-solidcraft-viewport = { workspace = true }
 solidcore-record = { workspace = true }
 solidcraft-color = { workspace = true }
 solidcraft-control = { workspace = true }
@@ -1,231 +0,0 @@
-//! Prepare an explicitly shaded OPUS copy and physical CPU/GPU reference setups.
-//! No render is started. Geometry and the original OPUS Master setup are retained.
-use serde_json::{Value, json};
-use solidcore_record::Vec3;
-use solidcraft_engine::{
-    Session,
-    doc::{Document, FeatureKind, MeshData, render_settings::RenderSetup},
-};
-use solidcraft_geom::prelude::*;
-use std::{error::Error, fs, path::PathBuf, sync::Arc};
-
-fn require(condition: bool, message: &str) -> Result<(), Box<dyn Error>> {
-    if condition { Ok(()) } else { Err(message.into()) }
-}
-
-const CURVED: &[&str] = &[
-    "A3 - continuous sixteen facet freeform glass knot",
-    "A3 - six lobe quilted aspheric witness optic",
-    "Glass - smoked rounded toroid",
-    "Glass - clear calibration sphere",
-    "O2 - Lens 1 - Biconvex crown",
-    "O2 - Lens 2 - Biconcave flint",
-    "O2 - Lens 3 - Thick meniscus",
-    "O2 - Lens 4 - Plano convex magnifier",
-    "O2 - Lens 5 - Aspheric correction optic",
-    "R2 - clear chest reactor lens",
-    "R2 - near clear glass eye",
-    "R2 - far clear glass eye",
-    "S2 - amber solid ellipsoid",
-    "S2 - cobalt fluted solid decanter",
-    "R2 - thorax ivory swept breastplates",
-    "S2 - glass gallery turned wood pedestal -217",
-    "S2 - glass gallery turned wood pedestal 211",
-];
-
-fn scene_counts(scene: &Value) -> Result<(usize, u64), Box<dyn Error>> {
-    let bodies = scene["bodies"].as_array().ok_or("missing scene bodies")?;
-    let triangles = bodies
-        .iter()
-        .try_fold(0u64, |sum, body| sum.checked_add(body["triangles"].as_u64().ok_or("missing triangle count")?).ok_or("triangle sum overflow"))?;
-    Ok((bodies.len(), triangles))
-}
-
-fn physical(master: &RenderSetup, cpu: bool, pilot: bool) -> Result<Value, Box<dyn Error>> {
-    let mut setup = serde_json::to_value(master)?;
-    let mut optics = setup["optics"].as_array().ok_or("missing optics")?.clone();
-    for binding in &mut optics {
-        binding["optics"]["shadow_transmission"] = json!(false);
-    }
-    setup["optics"] = json!(optics);
-    setup["mode"] = json!("final");
-    setup["width"] = json!(if pilot { 320 } else { 3840 });
-    setup["height"] = json!(if pilot { 180 } else { 2160 });
-    let samples = if pilot { 8u32 } else { 4096u32 };
-    let mut options = setup["job"]["options"].clone();
-    options["texture_filtering"] = json!(true);
-    options["linear_exr"] = json!(true);
-    options["max_depth"] = json!(64);
-    options["samples"] = json!(samples);
-    options["nested_media"] = json!(true);
-    options["denoise"] = json!(false);
-    if cpu {
-        let lighting = &options["lighting"];
-        let area_lights = lighting["area_lights"]
-            .as_array()
-            .ok_or("missing area lights")?
-            .iter()
-            .map(|a| {
-                let radiance: [f64; 3] = serde_json::from_value(a["radiance"].clone())?;
-                let intensity = radiance.into_iter().fold(0.0, f64::max);
-                let color = radiance.map(|v| if intensity > 0.0 { v / intensity } else { 0.0 });
-                // GPU stores half-edges; the CPU rectangle contract takes full sides.
-                let u: [f64; 3] = serde_json::from_value(a["u"].clone())?;
-                let v: [f64; 3] = serde_json::from_value(a["v"].clone())?;
-                Ok(json!({"center_mm":a["center"],"edge_u_mm":u.map(|x|x*2.0),"edge_v_mm":v.map(|x|x*2.0),"color":color,"intensity":intensity}))
-            })
-            .collect::<Result<Vec<Value>, serde_json::Error>>()?;
-        let cpu_options = json!({
-            "budget":"workstation", "texture_filtering":true,
-            "progressive":{"samples_per_pixel":samples,"seed":4619},
-            "path":{"max_depth":64}, "primary_samples":1, "shadows":true,
-            "lights":[], "area_lights":area_lights,"area_samples":1,
-            "punctual_lights":lighting["punctual_lights"],
-            "environment":{"color":lighting["environment"],"intensity":1.0},
-            "aging":options["aging"], "denoise":false,
-            "output":{"tone_map":options["tone_map"],"linear_exr":true}
-        });
-        setup["job"] = json!({"method":"cpu_raytrace","transparent_background":false,"options":cpu_options});
-    } else {
-        setup["job"]["options"] = options;
-    }
-    let checked: RenderSetup = serde_json::from_value(setup.clone())?;
-    checked.validate()?;
-    require(checked.camera == master.camera, "reference camera differs from Master")?;
-    require(checked.surfaces == master.surfaces && checked.coats == master.coats, "reference lost surface maps or coats")?;
-    Ok(setup)
-}
-
-fn crease_audit(mesh: &MeshData) -> Result<Value, Box<dyn Error>> {
-    let positions: Vec<Vec3> = mesh.positions.as_chunks::<3>().0.iter().map(|p| Vec3::new(p[0], p[1], p[2])).collect();
-    let triangles = mesh.triangles.as_chunks::<3>().0;
-    let mut weld = std::collections::HashMap::new();
-    let mut canonical = Vec::with_capacity(positions.len());
-    for p in &positions {
-        let next = weld.len();
-        canonical.push(*weld.entry([(p.x + 0.0).to_bits(), (p.y + 0.0).to_bits(), (p.z + 0.0).to_bits()]).or_insert(next));
-    }
-    let mut edges = std::collections::HashMap::<(usize, usize), (usize, Option<usize>, usize)>::new();
-    let mut face_normals = Vec::with_capacity(triangles.len());
-    for (i, t) in triangles.iter().enumerate() {
-        let [a, b, c] = t.map(|k| positions.get(k as usize).copied());
-        let (Some(a), Some(b), Some(c)) = (a, b, c) else { return Err("audit index missing".into()) };
-        face_normals.push((b - a).cross(c - a).normalized().ok_or("audit triangle degenerate")?);
-        for k in 0..3 {
-            let (a, b) = (canonical[t[k] as usize], canonical[t[(k + 1) % 3] as usize]);
-            edges
-                .entry((a.min(b), a.max(b)))
-                .and_modify(|e| {
-                    e.1 = Some(i * 3 + k);
-                    e.2 += 1;
-                })
-                .or_insert((i * 3 + k, None, 1));
-        }
-    }
-    let normal = |corner: usize| -> Result<Vec3, Box<dyn Error>> {
-        let n = mesh.corner_normals.get(corner * 3..corner * 3 + 3).ok_or("audit normal missing")?;
-        Ok(Vec3::new(n[0], n[1], n[2]))
-    };
-    let mut bins = [0u64; 7];
-    let mut sharp = 0u64;
-    let mut sharp_discontinuous = 0u64;
-    let mut boundary_or_nonmanifold = 0u64;
-    for (_, (a, b, count)) in edges {
-        let Some(b) = b.filter(|_| count == 2) else {
-            boundary_or_nonmanifold += 1;
-            continue;
-        };
-        let angle = face_normals[a / 3].dot(face_normals[b / 3]).clamp(-1.0, 1.0).acos().to_degrees();
-        let bin = [1.0, 5.0, 10.0, 22.5, 45.0, 90.0].iter().position(|&max| angle <= max).unwrap_or(6);
-        bins[bin] += 1;
-        if angle > 10.0 + 1e-9 {
-            sharp += 1;
-            let (ak, bk) = (a % 3, b % 3);
-            let same_a = normal(a)?.dist(normal((b / 3) * 3 + (bk + 1) % 3)?) <= 1e-8;
-            let same_b = normal((a / 3) * 3 + (ak + 1) % 3)?.dist(normal(b)?) <= 1e-8;
-            if !same_a || !same_b {
-                sharp_discontinuous += 1;
-            }
-        }
-    }
-    Ok(json!({"manifold_edge_angle_bins_degrees":[[0,1],[1,5],[5,10],[10,22.5],[22.5,45],[45,90],[90,180]],
-        "manifold_edge_counts":bins,"geometric_sharp_edges_above_10_degrees_before":sharp,
-        "geometric_sharp_edges_above_10_degrees_after":sharp,"sharp_edges_with_shading_discontinuity":sharp_discontinuous,
-        "boundary_or_nonmanifold_edges":boundary_or_nonmanifold}))
-}
-
-fn main() -> Result<(), Box<dyn Error>> {
-    let mut args = std::env::args_os().skip(1);
-    let baseline = PathBuf::from(args.next().ok_or("usage: opus_quality_fixture BASELINE.sc NEW_OUTPUT_DIRECTORY")?);
-    let output = PathBuf::from(args.next().ok_or("missing new output directory")?);
-    require(args.next().is_none(), "unexpected argument")?;
-    fs::create_dir(&output)?;
-    let original = fs::read(&baseline)?;
-    let mut doc: Document = solidcraft_io::read_design(&original)?;
-    let master = doc.render.setups.get("OPUS Master").cloned().ok_or("missing OPUS Master")?;
-    require(master.surfaces.len() == 104 && master.optics.len() == 30 && master.coats.len() == 6, "fixture bindings differ from OPUS baseline")?;
-    require(doc.components.len() == 82 && doc.assembly.joints.len() == 81 && doc.assembly.links.len() == 15, "fixture assembly counts differ")?;
-    let baseline_doc = doc.clone();
-    let mut baseline_session = Session::new(doc.clone());
-    let baseline_scene = baseline_session.execute("render.scene", &json!({}))?;
-    require(scene_counts(&baseline_scene)? == (511, 729874), "baseline scene geometry counts differ")?;
-    let mut edits = Vec::new();
-    for feature in &mut doc.features {
-        if let FeatureKind::MeshImport { meshes, .. } = &mut feature.kind {
-            for mesh in meshes {
-                if CURVED.contains(&mesh.name.as_str()) {
-                    let positions = mesh.positions.clone();
-                    let triangles = mesh.triangles.clone();
-                    mesh.generate_crease_normals(10.0)?;
-                    require(
-                        Arc::ptr_eq(&positions, &mesh.positions) && Arc::ptr_eq(&triangles, &mesh.triangles),
-                        "normal generation changed geometry arrays",
-                    )?;
-                    edits.push(json!({"feature":feature.id,"body":mesh.name,"crease_angle_degrees":10.0,"triangles":mesh.triangles.len()/3,"normal_values":mesh.corner_normals.len(),"crease_audit":crease_audit(mesh)?}));
-                }
-            }
-        }
-    }
-    require(edits.len() == CURVED.len(), "a curated normal target is missing or duplicated")?;
-    doc.name = format!("{} — curated 10 degree shading reference", doc.name);
-    let mut session = Session::new(doc);
-    let mut setup_receipts = Vec::new();
-    for (cpu, pilot, name) in [
-        (true, false, "OPUS Physical CPU 4K"),
-        (false, false, "OPUS Physical GPU 4K"),
-        (true, true, "OPUS Physical CPU Pilot"),
-        (false, true, "OPUS Physical GPU Pilot"),
-    ] {
-        let setup = physical(&master, cpu, pilot)?;
-        setup_receipts.push(session.execute("render.settings.set", &json!({"name":name,"set":setup}))?);
-    }
-    require(session.doc.render.setups.get("OPUS Master") == Some(&master), "original Master setup changed")?;
-    let scene = session.execute("render.scene", &json!({}))?;
-    require(scene == baseline_scene, "shading changed captured geometry, names, bounds or stable targets")?;
-    require(
-        session.doc.components == baseline_doc.components
-            && session.doc.occurrences == baseline_doc.occurrences
-            && session.doc.assembly == baseline_doc.assembly,
-        "assembly, pose or occurrence metadata changed",
-    )?;
-    let copy_path = output.join("OPUS-04-physical-reference.sc");
-    let copy = solidcraft_io::write_design_container(&session.doc)?;
-    fs::write(&copy_path, &copy)?;
-    let reopened = solidcraft_io::read_design(&copy)?;
-    require(reopened == *session.doc, "copy changed on cold reopen")?;
-    fs::write(output.join("baseline-scene.json"), serde_json::to_vec_pretty(&baseline_scene)?)?;
-    fs::write(output.join("reference-setups.json"), serde_json::to_vec_pretty(&setup_receipts)?)?;
-    let report = json!({
-        "baseline":baseline,"reference":copy_path,"baseline_bytes":original.len(),"reference_bytes":copy.len(),
-        "geometry":{"bodies":511,"triangles":729874,"unchanged":true},
-        "assembly":{"components":82,"joints":81,"couplings":15,"unchanged":true},
-        "bindings_per_reference":{"surfaces":104,"optics":30,"coats":6,"aging":7,"area_lights":4,"punctual_lights":7},
-        "curated_normal_edits":edits,"master_unchanged":true,"camera_unchanged":true,
-        "assembly_and_saved_pose_unchanged":true,"recorded_motion_step15_applied":false,
-        "reference_shadow_transmission":false,"render_started":false,
-        "qualification":"fixture preparation and public settings/scene commands only; no transport convergence claim"
-    });
-    fs::write(output.join("fixture-manifest.json"), serde_json::to_vec_pretty(&report)?)?;
-    println!("{}", serde_json::to_string_pretty(&report)?);
-    Ok(())
-}
@@ -913,29 +913,19 @@ fn unsupported_face_groups_are_atomic() {
    s.execute("solid.box", &json!({"length":10,"width":10,"height":10})).unwrap();
    let before = serde_json::to_value(s.doc.as_ref()).unwrap();
    let (revision, undo) = (s.revision, s.undo.len());
-    for faces in
-        [json!([]), json!([[5, 5, 10], [1000, 1000, 1000]]), json!([[5, 5, 10], [5, 0, 5], [1000, 1000, 1000]]), json!(vec![[5, 5, 10]; 1025])]
-    {
+    for faces in [
+        json!([]),
+        json!([[5, 5, 10], [5, 5, 0]]),
+        json!([[5, 5, 10], [5, 0, 5]]),
+        json!([[5, 5, 10], [1000, 1000, 1000]]),
+        json!(vec![[5, 5, 10]; 1025]),
+    ] {
        assert!(s.execute("solid.extrude", &json!({"faces":faces,"distance":5,"operation":"join"})).is_err());
        assert_eq!(serde_json::to_value(s.doc.as_ref()).unwrap(), before);
        assert_eq!((s.revision, s.undo.len()), (revision, undo));
    }
 }

-/// Faces in different planes extrude each from the body as picked (#11492): the top and a side of
-/// a block, a later face is not the one the earlier extrusion grew.
-#[test]
-fn faces_in_different_planes_extrude_each_from_the_picked_body() {
-    let mut s = Session::default();
-    s.execute("solid.box", &json!({"length":40,"width":25,"height":3,"body_name":"Block"})).unwrap();
-    let before = s.undo.len();
-    s.execute("solid.extrude", &json!({"faces":[[20,12,3],[20,0,1.5]],"face_body":"Block","distance":10,"operation":"join"})).unwrap();
-    let volume = solidcraft_kernel::measure(&s.model.state().body("Block").unwrap().body).unwrap().volume;
-    // 3000 + 10000 (above the top) + 1200 (out of the y = 0 side, 3 mm high).
-    assert!((volume - 14_200.0).abs() < 1e-5, "{volume}");
-    assert_eq!(s.undo.len(), before + 1);
-}
-
 #[test]
 fn imported_rotated_face_extrusions_preserve_other_operations_and_bodies() {
    use solidcore_record::Vec3;
@@ -8,7 +8,7 @@
 use std::sync::{Arc, Condvar, Mutex, RwLock};
 use std::time::{Duration, Instant};

-use solidcraft_viewport::{Camera, Scene};
+use solidcraft_render::{Camera, Scene};

 /// A picture: straight RGBA, rows top to bottom, and the renderer that drew it (`gpu`,
 /// `gpu-software` or `cpu`).
@@ -138,7 +138,7 @@ pub fn rgba_with(renderer: Option<&Renderer>, scene: &Scene, cam: &Camera, width
 /// [`png`] with `renderer` instead of the installed one.
 pub fn png_with(renderer: Option<&Renderer>, scene: &Scene, cam: &Camera, width: u32, height: u32) -> Result<Png, String> {
    let Picture { rgba, renderer } = rgba_with(renderer, scene, cam, width, height)?;
-    let bytes = solidcraft_viewport::png(width as usize, height as usize, rgba).ok_or_else(|| "PNG encoding failed".to_string())?;
+    let bytes = solidcraft_render::png(width as usize, height as usize, rgba).ok_or_else(|| "PNG encoding failed".to_string())?;
    Ok(Png { bytes, renderer })
 }

@@ -22,7 +22,7 @@ fn component(s: &Session, cmd: &str, value: &Value) -> Result<u64> {
        _ => return Err(bad(cmd, "component must be a name or unsigned id")),
    };
    // A placement's name (`K:2`) means its component, as appearance.assign takes it (#9740).
-    s.component_or_placement(&key).map_err(|error| bad(cmd, error.to_string()))?.ok_or_else(|| bad(cmd, "unknown or root component"))
+    s.component_or_placement(&key).ok_or_else(|| bad(cmd, "unknown or root component"))
 }

 pub(super) fn chain(s: &mut Session, p: &Value) -> Result<Value> {
@@ -102,27 +102,14 @@ fn scope(s: &Session, cmd: &str, value: &Value) -> Result<AppearanceScope> {
        // Build indexes once: 10000 repeated component targets must not scan a
        // 10000-component design once per target.
        let ids: BTreeSet<_> = s.doc.components.iter().map(|c| c.id).collect();
-        let mut names = BTreeMap::new();
-        for component in &s.doc.components {
-            names.entry(component.name.as_str()).and_modify(|id| *id = None).or_insert(Some(component.id));
-        }
+        let names: BTreeMap<_, _> = s.doc.components.iter().rev().map(|c| (c.name.as_str(), c.id)).collect();
        // A placement's name (`K:2`) means its component (#9740).
        let placements: BTreeMap<_, _> = s.doc.occurrences.iter().rev().map(|o| (o.name.as_str(), o.component)).collect();
        for target in list("components")? {
            let id = match target {
                Value::String(_) => {
                    let key = name(cmd, target)?;
-                    if let Some(id) = key.parse::<u64>().ok().filter(|id| id.to_string() == key && ids.contains(id)) {
-                        Some(id)
-                    } else {
-                        match names.get(key) {
-                            Some(Some(id)) => Some(*id),
-                            // Only an ambiguous name needs the full resolver's diagnostic. The
-                            // usual bulk path remains indexed, rather than rescanning per target.
-                            Some(None) => s.doc.resolve_component(key).map_err(|error| bad(cmd, error.to_string()))?,
-                            None => placements.get(key).copied(),
-                        }
-                    }
+                    key.parse::<u64>().ok().filter(|id| ids.contains(id)).or_else(|| names.get(key).copied()).or_else(|| placements.get(key).copied())
                }
                Value::Number(_) => target.as_u64().filter(|id| ids.contains(id)),
                _ => None,
@@ -87,7 +87,7 @@ fn key(v: Option<&Value>) -> Option<String> {

 fn component_id(s: &Session, p: &Value, cmd: &str) -> Result<u64> {
    let k = key(p.get("component")).ok_or_else(|| bad(cmd, "`component` must be a component id or name"))?;
-    s.doc.resolve_component(&k).map_err(|error| bad(cmd, error.to_string()))?.ok_or_else(|| bad(cmd, format!("no component `{k}`")))
+    s.doc.find_component(&k).ok_or_else(|| bad(cmd, format!("no component `{k}`")))
 }

 fn read(s: &mut Session, p: &Value) -> Result<Value> {
@@ -421,10 +421,13 @@ fn rows(s: &Session, ix: &Index, counts: &BTreeMap<u64, u64>, group: Group, kits
    out
 }

-/// The bill of materials as CSV: fixed columns, every field quoted, and a field a spreadsheet
-/// would run as a formula written as text.
+/// A CSV field, always quoted.
+fn quote(s: &str) -> String {
+    format!("\"{}\"", s.replace('"', "\"\""))
+}
+
+/// The bill of materials as CSV: fixed columns, every field quoted.
 fn csv(rows: &[Value]) -> String {
-    let quote = solidcraft_doc::csv::quoted;
    let mut out = ["item", "part_number", "description", "revision", "count", "definition"].map(quote).join(",");
    out.push('\n');
    let lines = rows.iter().flat_map(|r| std::iter::once(r).chain(r["children"].as_array().into_iter().flatten()));
@@ -201,20 +201,6 @@ fn csv_quotes_every_field_and_json_writes_the_rows() {
    let _ = std::fs::remove_dir_all(&dir);
 }

-/// A field that a spreadsheet would run as a formula gets a `'` first, so it opens as text
-/// (#12728). A count stays a number.
-#[test]
-fn a_csv_field_a_spreadsheet_would_run_opens_as_text() {
-    let dir = scratch("formula");
-    let mut s = assembly();
-    run(&mut s, "component.metadata.set", json!({"component": "Plate", "part_number": "=1+1", "description": "-5 mm shim", "revision": "@A"}));
-    let csv = dir.join("bom.csv");
-    run(&mut s, "assembly.bom", json!({"path": csv}));
-    let text = std::fs::read_to_string(&csv).unwrap();
-    assert!(text.contains("\n\"1\",\"'=1+1\",\"'-5 mm shim\",\"'@A\",\"3\",\"Plate\"\n"), "{text}");
-    let _ = std::fs::remove_dir_all(&dir);
-}
-
 #[test]
 fn standard_parts_carry_a_part_number_that_follows_a_resize() {
    let mut s = Session::default();
@@ -1090,7 +1090,7 @@ pub(crate) fn saved_view_form(c: &Value) -> std::result::Result<solidcraft_doc::

 /// The camera `view.apply` turns to for a `camera` it is given, as the handler reads it (and
 /// `ApplyCamera`, its contract type), or the message the handler refuses it with.
-pub(crate) fn applied_camera_form(c: &Value) -> std::result::Result<solidcraft_viewport::Camera, String> {
+pub(crate) fn applied_camera_form(c: &Value) -> std::result::Result<crate::render::Camera, String> {
    if c.get("up").is_some() {
        return Err("camera `up` is not supported: the up axis comes from the design settings".into());
    }
@@ -1103,7 +1103,7 @@ pub(crate) fn applied_camera_form(c: &Value) -> std::result::Result<solidcraft_v
    if !(v.pitch.abs() <= std::f64::consts::FRAC_PI_2 + 1e-9) {
        return Err("camera `pitch` must be within ±π/2 radians (±90°)".into());
    }
-    let cam = solidcraft_viewport::Camera { roll: roll.clamp(-std::f64::consts::PI, std::f64::consts::PI), ..camera_of(&v) };
+    let cam = crate::render::Camera { roll: roll.clamp(-std::f64::consts::PI, std::f64::consts::PI), ..camera_of(&v) };
    if !usable_camera(&cam) {
        return Err("the camera must be finite with a positive distance".into());
    }
@@ -1112,7 +1112,7 @@ pub(crate) fn applied_camera_form(c: &Value) -> std::result::Result<solidcraft_v

 /// A camera the viewport can be put at: finite, with a positive distance and a field of view of
 /// at least 0.
-fn usable_camera(cam: &solidcraft_viewport::Camera) -> bool {
+fn usable_camera(cam: &crate::render::Camera) -> bool {
    cam.is_valid() && cam.fov.is_finite() && cam.fov >= 0.0
 }

@@ -1143,11 +1143,11 @@ fn view_apply(s: &mut Session, p: &Value) -> Result<Value> {
        (None, None) => return Err(bad(cmd, "`view` (a name) or `camera` is required")),
        (None, Some(c)) => applied_camera_form(c).map_err(|e| bad(cmd, e))?,
        // Standard view names come first, as in the browser's Named Views folder.
-        (Some(name), None) => match solidcraft_viewport::StandardView::parse(name) {
+        (Some(name), None) => match crate::render::StandardView::parse(name) {
            Some(sv) => {
                let mut c = crate::view::home_camera(s)?;
                c.set_view(sv);
-                c.fit(&solidcraft_render::view_bounds(&crate::view::bounds(s)?));
+                c.fit(&crate::view::bounds(s)?);
                c
            }
            None => s.doc.named_views.iter().find(|v| v.name == name).map(camera_of).ok_or_else(|| bad(cmd, format!("no named view `{name}`")))?,
@@ -1161,8 +1161,8 @@ fn view_apply(s: &mut Session, p: &Value) -> Result<Value> {
 }

 /// The orbit camera of a named view (Z up, no roll).
-fn camera_of(v: &solidcraft_doc::NamedView) -> solidcraft_viewport::Camera {
-    solidcraft_viewport::Camera { target: v.target, yaw: v.yaw, pitch: v.pitch, distance: v.distance, fov: v.fov, ..Default::default() }
+fn camera_of(v: &solidcraft_doc::NamedView) -> crate::render::Camera {
+    crate::render::Camera { target: v.target, yaw: v.yaw, pitch: v.pitch, distance: v.distance, fov: v.fov, ..Default::default() }
 }

 fn view_index(s: &Session, p: &Value, cmd: &str) -> Result<usize> {
@@ -2452,7 +2452,7 @@ mod tests {
    /// camera past a pole or a NaN behind.
    #[test]
    fn applying_a_camera_by_view_angles_reads_back_and_refuses_hostile_pitch() {
-        use solidcraft_viewport::ViewAngles;
+        use crate::render::ViewAngles;
        let mut s = Session::default();
        for (view, (yaw, pitch)) in
            [("front", (0.0, 0.0)), ("left", (90.0, 0.0)), ("right", (-90.0, 0.0)), ("back", (180.0, 0.0)), ("top", (0.0, 90.0))]
@@ -2462,7 +2462,7 @@ mod tests {
            assert!((a.yaw - yaw).abs() < 1e-3 && (a.pitch - pitch).abs() < 1e-3 && a.roll == 0.0, "{view}: {a:?}");
        }
        let typed = ViewAngles { yaw: -30.0, pitch: 15.0, roll: 5.0 };
-        let cam = solidcraft_viewport::Camera::default().with_view_angles(typed).expect("finite angles");
+        let cam = crate::render::Camera::default().with_view_angles(typed).expect("finite angles");
        let p = json!({"camera": {"target": [0, 0, 0], "yaw": cam.yaw, "pitch": cam.pitch, "roll": cam.roll, "distance": 80}});
        run(&mut s, "view.apply", p);
        let a = s.camera.expect("the typed camera").view_angles();
@@ -2655,7 +2655,7 @@ mod tests {
        run(&mut s, "construct.plane.offset", json!({"base": "XY", "offset": 5, "name": "Floor"}));
        let body = s.model.state().bodies[0].name.clone();
        let drain_name = s.doc.feature(drain).unwrap().name.clone();
-        let cam = solidcraft_viewport::Camera::default();
+        let cam = solidcraft_render::Camera::default();
        let lines = |s: &Session| crate::view::scene(s, &cam).unwrap().lines.len();
        let shown = |s: &mut Session| {
            let d = run(s, "document.inspect", json!({}));
@@ -2750,7 +2750,7 @@ mod tests {
        let mut s = Session::default();
        run(&mut s, "solid.box", json!({"length": 10, "width": 10, "height": 10, "body_name": "Box"}));
        s.mark_saved();
-        let cam = solidcraft_viewport::Camera::default();
+        let cam = solidcraft_render::Camera::default();
        let drawn = |s: &Session| crate::view::scene(s, &cam).unwrap().meshes.len();
        assert!(drawn(&s) > 0, "the box is drawn");
        assert!(!s.is_dirty());
@@ -114,7 +114,7 @@ fn paste(s: &mut Session, p: &Value) -> Result<Value> {
                Value::String(name) => name.clone(),
                _ => return Err(bad(cmd, "`component` must be a component id or name")),
            };
-            s.doc.resolve_component(&key).map_err(|error| bad(cmd, error.to_string()))?.ok_or_else(|| bad(cmd, format!("no component `{key}`")))?
+            s.doc.find_component(&key).ok_or_else(|| bad(cmd, format!("no component `{key}`")))?
        }
    };
    let given_path = match p.get("component_path") {
@@ -304,32 +304,6 @@ mod tests {
        s.model.state().sketch(id).unwrap().profiles.iter().map(|p| p.area).sum()
    }

-    #[test]
-    fn pasting_features_rejects_an_ambiguous_destination_component() {
-        let mut source = Session::default();
-        run(&mut source, "sketch.create", json!({"plane":"XY","name":"Source"}));
-        run(&mut source, "sketch.finish", json!({}));
-        run(&mut source, "timeline.copy", json!({"features":["Source"]}));
-        let mut target = Session::default();
-        let mut ids = Vec::new();
-        for _ in 0..2 {
-            ids.push(run(&mut target, "component.create", json!({"name":"A","activate":false}))["component"].as_u64().unwrap());
-        }
-        target.clipboard = source.clipboard.clone();
-        target.foreign_copy = source.foreign_copy.clone();
-        let doc = target.doc.clone();
-        let undo = target.undo.len();
-        for foreign in [false, true] {
-            let error = target.execute("timeline.paste", &json!({"component":"A","from_design":foreign})).unwrap_err().to_string();
-            assert!(error.contains("ambiguous component `A`"), "{error}");
-            for id in &ids {
-                assert!(error.contains(&id.to_string()), "{error}");
-            }
-            assert_eq!(target.doc, doc);
-            assert_eq!(target.undo.len(), undo);
-        }
-    }
-
    #[test]
    fn foreign_sketch_paste_keeps_parameter_graph_snapshot_and_undo() {
        let mut source = dimensioned_sketch();
@@ -183,7 +183,7 @@ pub(super) fn paste(s: &mut Session, p: &Value) -> Result<Value> {
                Value::Number(n) => n.to_string(),
                _ => return Err(bad(CMD, "`component` must be a component id or name")),
            };
-            s.doc.resolve_component(&key).map_err(|error| bad(CMD, error.to_string()))?.ok_or_else(|| bad(CMD, format!("no component `{key}`")))?
+            s.doc.find_component(&key).ok_or_else(|| bad(CMD, format!("no component `{key}`")))?
        }
    };
    let path = match p.get("component_path") {
@@ -244,7 +244,7 @@ pub static COMMANDS: &[CommandSpec] = &[
        .icon("move")
        .contract(&MOVE_CONTRACT)
        .output(output_schema_for::<MoveResult>)
-        .params("occurrence; path?: exact placement; space?: local|world (default local); translate?: [x,y,z]; axis?: [x,y,z], angle?: radians or \"30 deg\", origin?: [x,y,z]; to?: {position: [x,y,z], axis?: [x,y,z], angle?} or to_matrix?: [12 or 16 numbers] (absolute placement: where it goes in space, not a move; not with translate/axis/angle/origin/matrix); matrix?: [12 or 16 numbers] (instead of translate/axis/angle/origin: a rigid move as a row-major 3x4 rotation-and-translation or 4x4 matrix, flat or as rows; one that is a rotation only up to rounding is orthonormalised, a scale, shear or mirror is refused); tolerance?: largest accepted |RᵀR − I| (default 1e-9, at most 1e-3); capture?: bool (default true; false keeps it pending until Capture Position); move_grounded?: bool (default false: a grounded occurrence refuses; true moves it and it stays grounded). Nested occurrence definitions remain shared. Replies {occurrence, transform, pending}; when joints hold it to something fixed and put it back, transform is where it is and the reply adds reverted: true and a warning naming the joint"),
+        .params("occurrence; path?: exact placement; space?: local|world (default local); translate?: [x,y,z]; axis?: [x,y,z], angle?: radians or \"30 deg\", origin?: [x,y,z]; matrix?: [12 or 16 numbers] (instead of translate/axis/angle/origin: a rigid move as a row-major 3x4 rotation-and-translation or 4x4 matrix, flat or as rows; one that is a rotation only up to rounding is orthonormalised, a scale, shear or mirror is refused); tolerance?: largest accepted |RᵀR − I| (default 1e-9, at most 1e-3); capture?: bool (default true; false keeps it pending until Capture Position); move_grounded?: bool (default false: a grounded occurrence refuses; true moves it and it stays grounded). Nested occurrence definitions remain shared. Replies {occurrence, transform, pending}; when joints hold it to something fixed and put it back, transform is where it is and the reply adds reverted: true and a warning naming the joint"),
    CommandSpec::new("occurrence.drag", "Drag Occurrence", crate::checked!("occurrence.drag", drag::drag))
        .icon("move")
        .contract(&DRAG_CONTRACT)
@@ -306,7 +306,7 @@ fn key(v: Option<&Value>) -> Option<String> {

 fn component(s: &Session, p: &Value, k: &str, cmd: &str) -> Result<u64> {
    let kk = key(p.get(k)).ok_or_else(|| bad(cmd, format!("`{k}` must be a component id or name")))?;
-    s.doc.resolve_component(&kk).map_err(|error| bad(cmd, error.to_string()))?.ok_or_else(|| bad(cmd, format!("no component `{kk}`")))
+    s.doc.find_component(&kk).ok_or_else(|| bad(cmd, format!("no component `{kk}`")))
 }

 fn occurrence(s: &Session, p: &Value, cmd: &str) -> Result<u64> {
@@ -795,10 +795,7 @@ fn move_occurrence(s: &mut Session, p: &Value) -> Result<Value> {
        let name = s.doc.components.iter().find(|c| c.id == group).map(|c| c.name.clone()).unwrap_or_default();
        return Err(bad(cmd, format!("{} is held in {name} by a rigid group: move {name}, or Unlock Contents (component.unlock) first", o.name)));
    }
-    let target = absolute_target(s, p, cmd)?;
-    let delta = if target.is_some() {
-        solidcraft_doc::IDENTITY
-    } else if let Some(m) = p.get("matrix") {
+    let delta = if let Some(m) = p.get("matrix") {
        if let Some(k) = ["translate", "axis", "angle", "origin"].into_iter().find(|k| p.get(*k).is_some()) {
            return Err(bad(cmd, format!("give either matrix or {k}, not both")));
        }
@@ -829,16 +826,6 @@ fn move_occurrence(s: &mut Session, p: &Value) -> Result<Value> {
        return Err(bad(cmd, "space must be local or world"));
    }
    let path = if p.get("path").is_some() || space == "world" { Some(occurrence_path(s, p, id, cmd)?) } else { None };
-    if let Some(target) = target {
-        let local = if space == "world" {
-            let placement = s.occurrence_placement_with(path.as_deref().unwrap_or(&[]), &s.uncaptured_moves())?;
-            let inverse = solidcraft_doc::mat_inverse(&placement.parent_world).ok_or_else(|| bad(cmd, "parent frame is singular"))?;
-            solidcraft_doc::mat_mul(&inverse, &target)
-        } else {
-            target
-        };
-        return place_occurrence(s, p, id, local, cmd);
-    }
    let delta = if space == "world" {
        let placement = s.occurrence_placement_with(path.as_deref().unwrap_or(&[]), &s.uncaptured_moves())?;
        let inverse = solidcraft_doc::mat_inverse(&placement.parent_world).ok_or_else(|| bad(cmd, "parent frame is singular"))?;
@@ -852,53 +839,6 @@ fn move_occurrence(s: &mut Session, p: &Value) -> Result<Value> {
        s.uncaptured_moves().get(&id).copied().unwrap_or(o.transform)
    };
    let next = solidcraft_doc::mat_mul(&delta, &cur);
-    place_occurrence(s, p, id, next, cmd)
-}
-
-/// `occurrence.move`'s target pose in `space` (#12150): `to: {position, axis?, angle?}` or
-/// `to_matrix`, or `None` for a relative move. Refused together with the relative keys.
-fn absolute_target(s: &Session, p: &Value, cmd: &str) -> Result<Option<Mat>> {
-    let (to, to_matrix) = (p.get("to"), p.get("to_matrix"));
-    if to.is_none() && to_matrix.is_none() {
-        return Ok(None);
-    }
-    if to.is_some() && to_matrix.is_some() {
-        return Err(bad(cmd, "give either to or to_matrix, not both"));
-    }
-    let key = if to.is_some() { "to" } else { "to_matrix" };
-    if let Some(k) = ["translate", "axis", "angle", "origin", "matrix", "base_transform"].into_iter().find(|k| p.get(*k).is_some()) {
-        return Err(bad(cmd, format!("give either {key} or {k}, not both")));
-    }
-    if let Some(m) = to_matrix {
-        return matrix::rigid(m, matrix::tolerance(p, cmd)?, cmd).map(Some);
-    }
-    let to = to.and_then(Value::as_object).ok_or_else(|| bad(cmd, "to must be {position, axis?, angle?}"))?;
-    if let Some(k) = to.keys().find(|k| !matches!(k.as_str(), "position" | "axis" | "angle")) {
-        return Err(bad(cmd, format!("to: unknown key `{k}` (position, axis, angle)")));
-    }
-    let to = Value::Object(to.clone());
-    if to.get("position").is_none() {
-        return Err(bad(cmd, "to needs a position: [x, y, z]"));
-    }
-    let position = move_vector(&to, "position", Vec3::ZERO, true, cmd)?;
-    let axis = move_vector(&to, "axis", Vec3::Z, false, cmd)?;
-    let angle = match to.get("angle") {
-        Some(Value::String(e)) => s.doc.eval(e, solidcraft_doc::expr::Kind::Angle).map_err(|e| bad(cmd, e.to_string()))?,
-        None => 0.0,
-        Some(value) => value.as_f64().ok_or_else(|| bad(cmd, "to.angle must be a number or angle expression"))?,
-    };
-    if !angle.is_finite() {
-        return Err(bad(cmd, "to.angle must be finite"));
-    }
-    if angle != 0.0 && axis.normalized().is_none() {
-        return Err(bad(cmd, "to.axis must have a finite nonzero length"));
-    }
-    Ok(Some(solidcraft_doc::rigid(position, Vec3::ZERO, axis, angle)))
-}
-
-/// Make `next` the occurrence's placement in its parent: captured (and the joints solved) or
-/// pending, as `capture` says.
-fn place_occurrence(s: &mut Session, p: &Value, id: u64, next: Mat, cmd: &str) -> Result<Value> {
    if !valid_position(&next) {
        return Err(bad(cmd, "move transform exceeds supported numeric range"));
    }
@@ -538,7 +538,7 @@ fn component_key(s: &Session, p: &Value, key: &str, cmd: &str) -> Result<u64> {
        Some(Value::String(x)) => x.clone(),
        _ => return Err(bad(cmd, format!("`{key}` must be a component id or name"))),
    };
-    s.doc.resolve_component(&k).map_err(|error| bad(cmd, error.to_string()))?.ok_or_else(|| bad(cmd, format!("no component `{k}`")))
+    s.doc.find_component(&k).ok_or_else(|| bad(cmd, format!("no component `{k}`")))
 }

 /// A command's reply as JSON: they build their replies from the types their output schemas
@@ -93,8 +93,7 @@ fn column_of(s: &Session, p: &Value, cmd: &str) -> Result<Column> {
        }
        let id = s
            .doc
-            .resolve_component(&key)
-            .map_err(|error| bad(cmd, error.to_string()))?
+            .find_component(&key)
            .or_else(|| s.doc.occurrences.iter().find(|occurrence| occurrence.name == key).map(|occurrence| occurrence.component))
            .filter(|id| *id != 0)
            .ok_or_else(|| bad(cmd, "no component definition"))?;
@@ -1,7 +1,6 @@
 use crate::Session;
 use serde_json::{Value, json};
 use solidcore_record::Vec3;
-use solidcraft_geom::MeshGeom;

 fn run(s: &mut Session, command: &str, p: Value) -> Value {
    s.execute(command, &p).unwrap()
@@ -204,7 +204,7 @@ fn apply(s: &mut Session, p: &Value) -> Result<Value> {
        }
    }
    for k in keys(p, "components") {
-        let id = s.doc.resolve_component(&k).map_err(|error| bad(cmd, error.to_string()))?.ok_or_else(|| bad(cmd, format!("no component `{k}`")))?;
+        let id = s.doc.find_component(&k).ok_or_else(|| bad(cmd, format!("no component `{k}`")))?;
        if id == 0 {
            return Err(bad(cmd, "the design itself can't be deleted"));
        }
@@ -79,10 +79,9 @@ pub static COMMANDS: &[CommandSpec] = &[
        .contract(&CRASH_TEST_CONTRACT)
        .output(output_schema_for::<CrashTestResult>)
        .params(
-            "mode: panic | kernel | worker | worker_raw | abort. Checks that crash reports work: panic = an internal error in this \
-             command (caught; the design is unchanged), kernel = one inside the geometry kernel (caught), worker / worker_raw = \
-             one on a Rayon worker, caught inside / outside the kernel's guard, abort = the app ends at once (reported at the \
-             next start). Only when the SOLIDCRAFT_CRASH_TEST environment variable is set",
+            "mode: panic | kernel | abort. Checks that crash reports work: panic = an internal error in this command (caught; \
+             the design is unchanged), kernel = one inside the geometry kernel (caught), abort = the app ends at once (reported \
+             at the next start). Only when the SOLIDCRAFT_CRASH_TEST environment variable is set",
        ),
 ];

@@ -124,10 +123,8 @@ fn crash_test_enabled(_: &Session) -> std::result::Result<(), String> {
    if solidcraft_geom::env::var_os("CRASH_TEST").is_some() { Ok(()) } else { Err("set SOLIDCRAFT_CRASH_TEST to use the crash test".into()) }
 }

-/// `diagnostics.crash_test`: the one deliberate panic. It proves the crash reports work, and runs
-/// only when asked for with SOLIDCRAFT_CRASH_TEST. `mode` picks where the internal error happens
-/// ([`CrashTestMode`](crate::schema::diagnostics::CrashTestMode)); every mode but `abort` ends
-/// in a caught error.
+// The one deliberate panic: it proves the crash reports work, and runs only when asked for with
+// SOLIDCRAFT_CRASH_TEST.
 #[allow(clippy::panic)]
 fn crash_test(_: &mut Session, p: &Value) -> Result<Value> {
    let cmd = "diagnostics.crash_test";
@@ -137,16 +134,8 @@ fn crash_test(_: &mut Session, p: &Value) -> Result<Value> {
            solidcraft_kernel::crash_test()?;
            Err(EngineError::Other("crash test: the kernel error was not caught".into()))
        }
-        Some("worker") => {
-            solidcraft_kernel::crash_test_worker_panic("an internal error in the kernel on a worker")?;
-            Err(EngineError::Other("crash test: the kernel error was not caught".into()))
-        }
-        Some("worker_raw") => {
-            solidcraft_kernel::crash_test_worker_panic_raw("a worker panic in a command")?;
-            Err(EngineError::Other("crash test: the worker panic was not resumed".into()))
-        }
        Some("abort") => std::process::abort(),
-        _ => Err(bad(cmd, "`mode` must be panic, kernel, worker, worker_raw or abort")),
+        _ => Err(bad(cmd, "`mode` must be panic, kernel or abort")),
    }
 }

@@ -30,14 +30,6 @@ pub static COMMANDS: &[CommandSpec] = &[
        .contract(&ASSISTANT_CONTRACT)
        .output(crate::schema::output_schema_for::<crate::schema::edit::AssistantResult>)
        .params("Show or hide Assistant in the app. Headless calls are refused without changing the design"),
-    CommandSpec::new("ui.palette", "Search Commands", crate::checked!("ui.palette", palette))
-        .icon("zoom")
-        .key("S")
-        .noundo()
-        .doc_only()
-        .contract(&PALETTE_CONTRACT)
-        .output(crate::schema::output_schema_for::<crate::schema::edit::PaletteResult>)
-        .params("Open command search in the app. Headless calls are refused without changing the design"),
    CommandSpec::new("edit.undo", "Undo", crate::checked!("edit.undo", undo))
        .icon("undo")
        .key("Ctrl+Z")
@@ -265,14 +257,6 @@ fn assistant(_s: &mut Session, _p: &Value) -> Result<Value> {
    Err(EngineError::Other("ui.assistant shows or hides Assistant in the app; no assistant panel exists in a headless session".into()))
 }

-const PALETTE_CONTRACT: crate::schema::TypedContract<crate::schema::edit::PaletteParams> = crate::schema::TypedContract::new();
-
-/// Command search (#12190) is the app's: it opens in `SolveApp::start`, and its key can be moved
-/// in Preferences › Shortcuts like any other command's.
-fn palette(_s: &mut Session, _p: &Value) -> Result<Value> {
-    Err(EngineError::Other("ui.palette opens command search in the app; there is no search box in a headless session".into()))
-}
-
 const REPEAT_CONTRACT: crate::schema::TypedContract<crate::schema::edit::RepeatParams> = crate::schema::TypedContract::new();

 /// Repeat Last Command (#7077) starts a tool, which only the app has: it starts the last one in
@@ -1,7 +1,6 @@
 //! Edit Feature must replace the selections as well as the numerical definition.

 use serde_json::{Value, json};
-use solidcraft_geom::MeshGeom;

 use crate::{Sel, Session};

@@ -1688,12 +1687,6 @@ fn assistant_toggle_is_refused_headlessly_without_changing_the_document() {
    assert_eq!((s.doc.to_json(), s.undo.len()), before);
    let spec = crate::find_command("ui.assistant").unwrap();
    assert_eq!((spec.shortcut, spec.tab, spec.undoable), (Some("Ctrl+Shift+A"), "", false));
-    // Command search likewise (#12190): S is its default key, not a reserved one.
-    let error = s.execute("ui.palette", &json!({})).unwrap_err().to_string();
-    assert!(error.contains("headless session"), "{error}");
-    assert_eq!((s.doc.to_json(), s.undo.len()), before);
-    let spec = crate::find_command("ui.palette").unwrap();
-    assert_eq!((spec.shortcut, spec.tab, spec.undoable), (Some("S"), "", false));
 }

 #[test]
@@ -3,7 +3,6 @@
 use crate::Session;
 use serde_json::{Value, json};
 use solidcraft_doc::{Document, ExtrudeConvention, FeatureKind};
-use solidcraft_geom::MeshGeom;

 fn run(s: &mut Session, cmd: &str, params: Value) {
    s.execute(cmd, &params).unwrap_or_else(|e| panic!("{cmd}: {e}"));
@@ -262,9 +261,9 @@ fn an_older_two_sided_extrude_with_a_negative_distance_keeps_its_sides() {
    let mut base = fixture(json!({"direction":"positive","distance":"10 mm","distance2":"10 mm"}));
    run(&mut base, "parameters.add", json!({"name":"width","expression":"20 mm"}));
    let mut saved: Value = serde_json::from_str(&base.doc.to_json()).unwrap();
-    // Format 50 predates the v51 second-side migration. A moving current-1 tag
-    // can already include that migration after unrelated format changes.
-    saved["format"] = json!("solidcraft/50");
+    // As the last release saved it: the format before this build's pending changes.
+    let version: u32 = saved["format"].as_str().unwrap().trim_start_matches("solidcraft/").parse().unwrap();
+    saved["format"] = json!(format!("solidcraft/{}", version - 1));
    saved.as_object_mut().unwrap().remove("format_pending");
    for (distance, lo, hi) in [("-width", -20.0, 10.0), ("-0 mm", -10.0, 0.0), ("-10 mm", -10.0, 10.0)] {
        let mut file = saved.clone();
@@ -247,38 +247,6 @@ fn xy(v: Vec2) -> Value {
    json!([v.x, v.y])
 }

-/// The picked points split into runs of coplanar, equally oriented faces of one body, in the
-/// order each run is first picked. Every pick is resolved against the body as it is now.
-pub(super) fn face_groups(s: &Session, points: &[Vec3], cmd: &str, face_body: Option<&str>) -> Result<Vec<Vec<Vec3>>> {
-    if points.len() > 1024 {
-        return Err(bad(cmd, "faces exceed the 1024-face limit"));
-    }
-    let state = s.model.state();
-    let mut groups: Vec<(String, solidcore_record::Plane, Vec<Vec3>)> = Vec::new();
-    for &point in points {
-        if !point.is_finite() {
-            return Err(bad(cmd, "faces must be finite points"));
-        }
-        let (mesh, index, distance, name) = face_at_in(s, point, face_body)
-            .map_err(|_| bad(cmd, "ambiguous face; specify face_body"))?
-            .ok_or_else(|| bad(cmd, "no body face at a selected point"))?;
-        let body = state.body(&name).ok_or_else(|| bad(cmd, "selected body disappeared"))?;
-        let plane = body.body.planar_face(index as usize).ok_or_else(|| bad(cmd, "faces must be planar"))?;
-        if distance > (mesh.bounds().diagonal() * 1e-3).max(1e-3) * 10.0 {
-            return Err(bad(cmd, "no body face at a selected point"));
-        }
-        let tolerance = (body.body.size() * 1e-9).max(1e-8);
-        match groups
-            .iter_mut()
-            .find(|(n, base, _)| *n == name && base.normal().dot(plane.normal()) >= 1.0 - 1e-9 && base.height(plane.origin).abs() <= tolerance)
-        {
-            Some((_, _, run)) => run.push(point),
-            None => groups.push((name, plane, vec![point])),
-        }
-    }
-    Ok(groups.into_iter().map(|(_, _, run)| run).collect())
-}
-
 /// Coplanar faces share one linked profile sketch and one Extrude feature. Resolve every
 /// pick before editing the document, so later picks never search an already modified body.
 pub(super) fn sketch_of_faces(s: &mut Session, points: &[Vec3], cmd: &str, face_body: Option<&str>) -> Result<(u64, Vec<Vec2>, String)> {
@@ -15,16 +15,14 @@ use crate::params::{UNKNOWN_COMMAND, bad, bool_, expr, expr_problem, req_expr, s
 use crate::schema::features::SweepParams;
 use crate::schema::features::{
    AppliedRadius, BoundingSolidParams, BoxParams, ChamferParams, CombineParams, CombineResult, ConeParams, CylinderParams, ExtrudeParams,
-    FeatureNotice, FeatureResult, FilletParams, FilletResult, NoticeAction, OffsetPlaneParams, PipeParams, PlaneAtAngleParams, RevolveParams,
-    ScaleParams, SphereParams, TorusParams,
+    FeatureNotice, FeatureResult, FilletParams, FilletResult, NoticeAction, OffsetPlaneParams, PipeParams, PlaneAtAngleParams, ScaleParams,
+    SphereParams, TorusParams,
 };
-use crate::schema::split::{SplitBodyParams, SplitFaceParams};
 use crate::schema::{TypedContract, output_schema_for};
 use crate::{EngineError, Result, Session};

 const BOX_CONTRACT: TypedContract<BoxParams> = TypedContract::new();
 const EXTRUDE_CONTRACT: TypedContract<ExtrudeParams> = TypedContract::new();
-const REVOLVE_CONTRACT: TypedContract<RevolveParams> = TypedContract::new();
 const CYLINDER_CONTRACT: TypedContract<CylinderParams> = TypedContract::new();
 const SPHERE_CONTRACT: TypedContract<SphereParams> = TypedContract::new();
 const TORUS_CONTRACT: TypedContract<TorusParams> = TypedContract::new();
@@ -38,8 +36,6 @@ const OFFSET_PLANE_CONTRACT: TypedContract<OffsetPlaneParams> = TypedContract::n
 const PLANE_AT_ANGLE_CONTRACT: TypedContract<PlaneAtAngleParams> = TypedContract::new();
 const FILLET_CONTRACT: TypedContract<FilletParams> = TypedContract::new();
 const CHAMFER_CONTRACT: TypedContract<ChamferParams> = TypedContract::new();
-const SPLIT_FACE_CONTRACT: TypedContract<SplitFaceParams> = TypedContract::new();
-const SPLIT_BODY_CONTRACT: TypedContract<SplitBodyParams> = TypedContract::new();

 pub static COMMANDS: &[CommandSpec] = &[
    CommandSpec::new("solid.extrude", "Extrude", crate::checked!("solid.extrude", extrude))
@@ -49,11 +45,9 @@ pub static COMMANDS: &[CommandSpec] = &[
        .contract(&EXTRUDE_CONTRACT)
        .output(output_schema_for::<FeatureResult>)
        .params("distance: expr (or through_all: true); taper?: angle expr (positive: outward, so the far end is larger along the extrusion direction; negative: inward, so the far end is smaller); corner?: preserve_curvature|tangent|round (how a taper closes a sharp corner its offset opens: each wall continues as itself, a line's plane or an arc's cone, until it meets its neighbour; each continues straight along its end tangent; or an arc about the corner. Without it, each profile preserves curvature where every curve is a line or an arc and takes tangent where another curve has a corner, and the feature's warning says so; a corner rule given is kept, and refused where the kernel cannot build it); sketch?: id|name (default: active or last sketch); profiles?: all | [index] | [{curves: [ids]}] (the profile whose outer loop is made of exactly these curves, or pieces of them; found again on every recompute, so it follows parameter changes; islands inside are its holes; an error when no profile or several match) | [{point:[x,y]}] (index and point picks are stored by their curves when that finds the same profile; a pick on a drawn profile that reference geometry, such as the projected outline of the face the sketch is on, cuts into regions takes the whole drawn profile); exact_regions?: bool (each index or point pick is exactly the region it names, as the dialogs send); default: every drawn profile, except that a loop inside another is its hole and a loop inside that hole is material again; face?: [x,y,z] (extrude a planar body face instead of a sketch profile); faces?: [[x,y,z],…] (coplanar faces of one body); face_body?: name (whose face, where faces of several bodies meet at the point); direction?: positive|negative|symmetric (distance is total thickness, split evenly around the start plane); convention?: total_distance|legacy_per_side (how a symmetric distance is read; default total_distance, split evenly around the start plane; legacy_per_side: the distance on each side, as older symmetric extrudes keep); distance2?: expr (Two Sides: a second distance on the side direction leaves free, the first side may be through_all or to; with direction: negative the first side goes against the normal and distance2 along it; a negative distance only turns its own side over); start_offset?: expr (along the sketch normal, also with direction: negative); to?: [x,y,z] (To Object: a face, vertex or point; to_offset?: expr past it); from?: [x,y,z] (From Object: start at that face or point); operation?: new|join|cut|intersect|auto (cut into a body, otherwise join existing solids; new in an empty component); touching?: separate|one_body (what a join makes of pieces that share no face: separate, the default, makes each piece that touches another only along an edge or at a point a body of its own and keeps pieces that touch nothing in one body; one_body keeps every piece in one body); targets?: [body] (Join from a face, or from a sketch on a body's face, defaults to that face's body; explicit targets or participants override); name?; body_name?; thin?: true (Thin: a wall along sketch curves instead of the profiles) with curves?: [curve ids] (open chains and closed loops, joined where they meet end to end; default: every drawn curve of the sketch), thickness: expr, side?: center|inside|outside|two_sides (a closed loop's inside is the area it encloses, an open chain's the side it bends toward, a straight line's the left of its first curve as drawn; default center), thickness2?: expr (two_sides: the thickness outside); corners are mitred, crossing walls are one"),
-    CommandSpec::new("solid.revolve", "Revolve", crate::checked!("solid.revolve", revolve))
+    CommandSpec::new("solid.revolve", "Revolve", revolve)
        .at("SOLID", "CREATE")
        .icon("revolve")
-        .contract(&REVOLVE_CONTRACT)
-        .output(output_schema_for::<FeatureResult>)
        .params("axis: sketch line id | x | y (sketch axes) | X|Y|Z (world) | {type: world, axis: X|Y|Z} (as returned by timeline.inspect) | construction axis name (followed when edited) | {origin, dir} (origin: numbers or length expressions, followed when parameters change) | {edge|face: [x,y,z]} (a straight or circular edge, or a cylinder, cone or torus face: about its axis, followed as the model changes); angle?: expr (default 360 deg); angle2?: expr (Two Sides: the other side's angle); direction?: symmetric (angle split either side, independent of axis direction); convention?: sketch_normal|legacy_axis_start (default sketch_normal; legacy retains older angular starts); to?: [x,y,z] (To Object: turn until that face, vertex or point); sketch?, profiles? | face: [x,y,z] (a planar body face as the profile) and face_body?: name (whose face, where faces of several bodies meet), operation?, touching?, targets?, name?, body_name?"),
    CommandSpec::new("solid.sweep", "Sweep", crate::checked!("solid.sweep", sweep))
        .at("SOLID", "CREATE")
@@ -179,19 +173,15 @@ pub static COMMANDS: &[CommandSpec] = &[
        .contract(&PLANE_AT_ANGLE_CONTRACT)
        .output(output_schema_for::<FeatureResult>)
        .params("base: XY|XZ|YZ|plane name, or a planar face {face: [x,y,z], body?, index?, path?}; axis: X|Y|Z|construction axis name (where it is now)|{origin, dir} | {edge|face: [x,y,z]} (a straight or circular edge, or a cylinder, cone or torus face: about its axis, followed as the model changes); angle: expr; direction_only?: bool (default false: turn about the axis as a line; true: project the axis direction onto base and turn about the line through pivot, or the base origin); pivot?: point ref (only with direction_only; vertex, sketch point, construction point); name?"),
-    CommandSpec::new("solid.split_face", "Split Face", crate::checked!("solid.split_face", split_face))
+    CommandSpec::new("solid.split_face", "Split Face", split_face)
        .at("SOLID", "MODIFY")
        .icon("split_face")
-        .contract(&SPLIT_FACE_CONTRACT)
-        .output(output_schema_for::<FeatureResult>)
        .params(
            "faces: [[x,y,z] points on the faces to split, or face names from model.faces]; body?; and the splitting tool: plane: XY|XZ|YZ|plane name|{origin, normal} — or tool: {body, point} (a face of a body, its surface extended) — or sketch: id or name (its curves, along the sketch's normal)",
        ),
-    CommandSpec::new("solid.split_body", "Split Body", crate::checked!("solid.split_body", split_body))
+    CommandSpec::new("solid.split_body", "Split Body", split_body)
        .at("SOLID", "MODIFY")
        .icon("split_body")
-        .contract(&SPLIT_BODY_CONTRACT)
-        .output(output_schema_for::<FeatureResult>)
        .params("body: name; plane: XY|XZ|YZ|plane name|{origin, normal} — or tool: {body, point} (a face of a body, its surface extended) — or sketch: id, line: curve id (a straight sketch line, along the sketch's normal)"),
    CommandSpec::new("solid.press_pull", "Press Pull", press_pull)
        .at("SOLID", "MODIFY")
@@ -906,8 +896,6 @@ fn add_feature_in(s: &mut Session, p: &Value, kind: FeatureKind, world: bool) ->
    serde_json::to_value(reply).map_err(|e| EngineError::Other(e.to_string()))
 }

-type FaceProfile = (u64, Option<ProfileSel>, Option<String>);
-
 fn extrude(s: &mut Session, p: &Value) -> Result<Value> {
    let cmd = "solid.extrude";
    let grouped = if let Some(value) = p.get("faces") {
@@ -919,31 +907,11 @@ fn extrude(s: &mut Session, p: &Value) -> Result<Value> {
            .filter(|faces| !faces.is_empty() && faces.len() <= 1024)
            .ok_or_else(|| bad(cmd, "faces must contain between 1 and 1024 points"))?;
        let points = faces.iter().map(|point| vec3(point).ok_or_else(|| bad(cmd, "faces must be points [x,y,z]"))).collect::<Result<Vec<_>>>()?;
-        let groups = super::face::face_groups(s, &points, cmd, str_(p, "face_body"))?;
-        // Faces in different planes extrude each by itself. Every face's profile is taken from
-        // the body as picked, before the first extrusion grows it (#11492).
-        if groups.len() > 1 {
-            let mut profiles = Vec::new();
-            for group in &groups {
-                let (id, points, body) = super::face::sketch_of_faces(s, group, cmd, str_(p, "face_body"))?;
-                profiles.push((id, Some(ProfileSel::Points { points }), Some(body)));
-            }
-            let mut reply = Value::Null;
-            for profile in profiles {
-                reply = extrude_from(s, p, Some(profile))?;
-            }
-            return Ok(reply);
-        }
        let (id, points, body) = super::face::sketch_of_faces(s, &points, cmd, str_(p, "face_body"))?;
        Some((id, Some(ProfileSel::Points { points }), Some(body)))
    } else {
        None
    };
-    extrude_from(s, p, grouped)
-}
-
-fn extrude_from(s: &mut Session, p: &Value, grouped: Option<FaceProfile>) -> Result<Value> {
-    let cmd = "solid.extrude";
    // A planar body face extrudes like a profile: its boundary is copied into a sketch on it.
    let (sketch, face_profile, face_body) = if let Some(grouped) = grouped {
        grouped
@@ -2572,12 +2540,7 @@ fn finish_pattern(
    let mats = solidcraft_doc::pattern_matrices(&s.doc, &s.model.state(), &pattern)?;
    let mut made = Vec::new();
    for c in &comps {
-        let id = s
-            .doc
-            .resolve_component(c)
-            .map_err(|error| bad(cmd, error.to_string()))?
-            .filter(|id| *id != 0)
-            .ok_or_else(|| bad(cmd, format!("no component `{c}`")))?;
+        let id = s.doc.find_component(c).filter(|id| *id != 0).ok_or_else(|| bad(cmd, format!("no component `{c}`")))?;
        let src = s.doc.occurrence_of(id).cloned().ok_or_else(|| bad(cmd, format!("component `{c}` has no occurrence")))?;
        for m in &mats {
            made.push(s.doc_mut().add_occurrence(id, src.parent, solidcraft_doc::mat_mul(m, &src.transform))?);
@@ -13,7 +13,6 @@ use super::features::{
    add_feature, axis_dir_param, check_expr, feature_sketch, length_operands, plane_param, point_param, profiles, typed_length_unit,
 };
 use crate::params::{bad, bool_, expr, req_expr, str_, string_list, vec3};
-use crate::schema::align::AlignParams;
 use crate::schema::features::FeatureResult;
 use crate::schema::features_more::{BoundaryFillParams, RemoveParams, RibParams};
 use crate::schema::{TypedContract, output_schema_for};
@@ -21,7 +20,6 @@ use crate::{Result, Session};

 /// Rib and Web take the same keys.
 const RIB_CONTRACT: TypedContract<RibParams> = TypedContract::new();
-const ALIGN_CONTRACT: TypedContract<AlignParams> = TypedContract::new();
 const REMOVE_CONTRACT: TypedContract<RemoveParams> = TypedContract::new();
 const BOUNDARY_FILL_CONTRACT: TypedContract<BoundaryFillParams> = TypedContract::new();

@@ -60,11 +58,9 @@ pub static COMMANDS: &[CommandSpec] = &[
        .at("SOLID", "MODIFY")
        .icon("replace_face")
        .params("faces: [[x,y,z] points on planar faces, or face names from model.faces]; target: plane (XY|XZ|YZ|construction plane|{origin, normal}) | target_face: [x,y,z] on a parallel planar face; body?"),
-    CommandSpec::new("solid.align", "Align", crate::checked!("solid.align", align))
+    CommandSpec::new("solid.align", "Align", align)
        .at("SOLID", "MODIFY")
        .icon("align")
-        .contract(&ALIGN_CONTRACT)
-        .output(output_schema_for::<FeatureResult>)
        .params("bodies: [names]; from: [x,y,z] | \"origin\" | {snap: vertex|edge_mid|face_center|circle_center, at: [x,y,z]} | from_face: [x,y,z] | from_plane: XY|XZ|YZ|construction or offset plane name or id|{origin, normal}; to: (the same) | to_face: [x,y,z] | to_plane: (a plane as from_plane; the point or face goes onto it along its normal, and the plane may move later: the bodies follow); from_frame / to_frame: a frame found again whenever the design changes, so the bodies follow it, in place of that side's point, face or plane: a joint origin as joint.create takes one ({face|circle|edge|point: [x,y,z]}, a face's name, a named joint origin) or {sketch, point|curve} (a sketch point, or a circle's, arc's or ellipse's centre, z along the sketch's normal), on the bodies' own component; faces, planes and frames also turn to meet; flip?: bool; axes?: [x, y, z] (point-to-point only: which world axes the offset moves along; default all three, at least one true); angle?: expr (a turn about the target's direction after the move)"),
    CommandSpec::new("solid.remove", "Remove", crate::checked!("solid.remove", remove))
        .at("SOLID", "MODIFY")
@@ -425,58 +421,21 @@ fn replace_face(s: &mut Session, p: &Value) -> Result<Value> {
    add_feature(s, p, FeatureKind::ReplaceFace { faces: faces.into_iter().map(FacePick).collect(), target, body: body.map(BodyName) })
 }

-/// What `solid.align` says when `axes` is not three booleans, or when none is true.
-pub(crate) const AXES_SHAPE: &str = "`axes` must be [x, y, z] booleans";
-pub(crate) const AXES_NONE: &str = "`axes` must enable at least one of X, Y and Z";
-
-/// `axes` as `solid.align` reads it: three booleans, one per world axis, at least one of them
-/// true; the message is the handler's.
-pub(crate) fn axes_mask(v: &Value) -> std::result::Result<[bool; 3], &'static str> {
-    let a = v.as_array().filter(|a| a.len() == 3).ok_or(AXES_SHAPE)?;
-    let mut mask = [false; 3];
-    for (slot, v) in mask.iter_mut().zip(a) {
-        *slot = v.as_bool().ok_or(AXES_SHAPE)?;
-    }
-    if !mask.iter().any(|on| *on) {
-        return Err(AXES_NONE);
-    }
-    Ok(mask)
-}
-
 /// `axes`: three booleans, one per world axis, for a point-to-point Align.
 /// `None` when the call does not restrict the move.
 fn axes_param(p: &Value, cmd: &str) -> Result<Option<[bool; 3]>> {
    let Some(v) = p.get("axes").filter(|v| !v.is_null()) else { return Ok(None) };
-    let mask = axes_mask(v).map_err(|why| bad(cmd, why))?;
+    let a = v.as_array().filter(|a| a.len() == 3).ok_or_else(|| bad(cmd, "`axes` must be [x, y, z] booleans"))?;
+    let mut mask = [false; 3];
+    for (slot, v) in mask.iter_mut().zip(a) {
+        *slot = v.as_bool().ok_or_else(|| bad(cmd, "`axes` must be [x, y, z] booleans"))?;
+    }
+    if !mask.iter().any(|on| *on) {
+        return Err(bad(cmd, "`axes` must enable at least one of X, Y and Z"));
+    }
    Ok((mask != [true; 3]).then_some(mask))
 }

-/// An Align side given as a point (`from` or `to`), as the handler reads it.
-pub(crate) enum SidePoint {
-    /// The text `origin` (any case): the world origin.
-    Origin,
-    /// `{snap?, at}`: the nearest `snap` (vertex unless the object says another) to `at`.
-    Snap { at: Vec3, kind: String },
-    /// `[x, y, z]`.
-    Point(Vec3),
-}
-
-/// The side `pk` (`from` or `to`) as a point, with the handler's message when it is none of the
-/// forms; `fk` is the face key beside it (`from_face`).
-pub(crate) fn side_point(v: Option<&Value>, pk: &str, fk: &str) -> std::result::Result<SidePoint, String> {
-    // The origin point.
-    if v.and_then(Value::as_str).is_some_and(|o| o.eq_ignore_ascii_case("origin")) {
-        return Ok(SidePoint::Origin);
-    }
-    // A snap point: {snap: vertex|edge_mid|face_center|circle_center, at: [x,y,z]}.
-    if let Some(o) = v.filter(|v| v.is_object()) {
-        let at = o.get("at").and_then(vec3).ok_or_else(|| format!("`{pk}.at` must be [x, y, z]"))?;
-        let kind = o.get("snap").and_then(Value::as_str).unwrap_or("vertex").to_string();
-        return Ok(SidePoint::Snap { at, kind });
-    }
-    v.and_then(vec3).map(SidePoint::Point).ok_or_else(|| format!("give `{pk}`, `{fk}` or `{pk}_plane` ([x, y, z], \"origin\", or a plane)"))
-}
-
 fn align(s: &mut Session, p: &Value) -> Result<Value> {
    let cmd = "solid.align";
    let bodies = string_list(cmd, p, "bodies")?;
@@ -533,13 +492,20 @@ fn align(s: &mut Session, p: &Value) -> Result<Value> {
            let n = super::face::face_normal_world(s, fp).ok_or_else(|| bad(cmd, format!("`{fk}` must be on a planar face")))?;
            return Ok((fp, Some(n)));
        }
-        match side_point(p.get(pk), pk, fk).map_err(|why| bad(cmd, why))? {
-            SidePoint::Origin => Ok((Vec3::ZERO, None)),
-            SidePoint::Snap { at, kind } => {
-                snap_point(&*s.world_state()?, &kind, at).map(|q| (q, None)).ok_or_else(|| bad(cmd, format!("no {kind} to snap to near `{pk}`")))
-            }
-            SidePoint::Point(v) => Ok((v, None)),
+        // The origin point.
+        if p.get(pk).and_then(Value::as_str).is_some_and(|o| o.eq_ignore_ascii_case("origin")) {
+            return Ok((Vec3::ZERO, None));
        }
+        // A snap point: {snap: vertex|edge_mid|face_center|circle_center, at: [x,y,z]}.
+        if let Some(o) = p.get(pk).filter(|v| v.is_object()) {
+            let at = o.get("at").and_then(vec3).ok_or_else(|| bad(cmd, format!("`{pk}.at` must be [x, y, z]")))?;
+            let kind = o.get("snap").and_then(Value::as_str).unwrap_or("vertex");
+            return snap_point(&*s.world_state()?, kind, at).map(|q| (q, None)).ok_or_else(|| bad(cmd, format!("no {kind} to snap to near `{pk}`")));
+        }
+        p.get(pk)
+            .and_then(vec3)
+            .map(|v| (v, None))
+            .ok_or_else(|| bad(cmd, format!("give `{pk}`, `{fk}` or `{pk}_plane` ([x, y, z], \"origin\", or a plane)")))
    };
    let pick = |s: &Session, pk: &str, fk: &str, held: bool| -> Result<(Vec3, Option<Vec3>)> {
        let (at, n) = world_pick(s, pk, fk, held)?;
@@ -602,24 +568,7 @@ fn align(s: &mut Session, p: &Value) -> Result<Value> {
 }

 /// The longest sketch point or curve id an Align frame takes.
-pub(crate) const MAX_SKETCH_ID: usize = 256;
-
-/// The point or curve of an Align `{sketch, point|curve}` frame: an id of 1 to
-/// [`MAX_SKETCH_ID`] characters. `None` when the frame gives both, neither or an id that is not
-/// one.
-pub(crate) enum SketchFrameId {
-    Point(String),
-    Curve(String),
-}
-
-pub(crate) fn sketch_frame_id(v: &Value) -> Option<SketchFrameId> {
-    let id = |k: &str| str_(v, k).filter(|n| !n.is_empty() && n.chars().count() <= MAX_SKETCH_ID).map(str::to_string);
-    match (id("point"), id("curve")) {
-        (Some(point), None) => Some(SketchFrameId::Point(point)),
-        (None, Some(curve)) => Some(SketchFrameId::Curve(curve)),
-        _ => None,
-    }
-}
+const MAX_SKETCH_ID: usize = 256;

 /// An Align side's frame (#6257), `<key>_frame`: a joint origin as `joint.create` takes one, or a
 /// sketch point or the centre of a sketch circle, arc or ellipse (`{sketch, point|curve}`), on the
@@ -636,10 +585,11 @@ fn align_frame(s: &Session, p: &Value, key: &str, bodies: &[String]) -> Result<O
    let (frame, on) = match v.get("sketch") {
        Some(sk) => {
            let sketch = super::features::sketch_id(s, Some(sk), cmd, &fk)?;
-            let frame = match sketch_frame_id(v) {
-                Some(SketchFrameId::Point(point)) => AlignFrame::SketchPoint { sketch: SketchId(sketch), point },
-                Some(SketchFrameId::Curve(curve)) => AlignFrame::SketchCurve { sketch: SketchId(sketch), curve },
-                None => return Err(bad(cmd, format!("`{fk}`: a sketch frame takes `point` or `curve` (an id of 1 to {MAX_SKETCH_ID} characters)"))),
+            let id = |k: &str| str_(v, k).filter(|n| !n.is_empty() && n.chars().count() <= MAX_SKETCH_ID).map(str::to_string);
+            let frame = match (id("point"), id("curve")) {
+                (Some(point), None) => AlignFrame::SketchPoint { sketch: SketchId(sketch), point },
+                (None, Some(curve)) => AlignFrame::SketchCurve { sketch: SketchId(sketch), curve },
+                _ => return Err(bad(cmd, format!("`{fk}`: a sketch frame takes `point` or `curve` (an id of 1 to {MAX_SKETCH_ID} characters)"))),
            };
            (frame, s.doc.feature(sketch).map_or(0, |f| f.component))
        }
@@ -1,6 +1,5 @@
 use serde_json::{Value, json};
 use solidcraft_geom::prelude::*;
-use solidcraft_geom::tess::EvaluateMesh as _;

 use crate::Session;

@@ -1884,12 +1883,7 @@ fn knife_edge_part() -> Session {
 /// the concave arc). It holds to about 1e-3 of what a blend removes here; the bounds below are
 /// about twice what each test reads.
 fn planned(s: &Session) -> f64 {
-    s.model
-        .state()
-        .bodies
-        .iter()
-        .map(|b| b.body.mesh_plan(&solidcraft_kernel::MeshTolerance::chord(2e-4)).unwrap().evaluate_mesh().measure().volume)
-        .sum()
+    s.model.state().bodies.iter().map(|b| b.body.mesh_plan(&solidcraft_kernel::MeshTolerance::chord(2e-4)).unwrap().evaluate().measure().volume).sum()
 }

 /// The middle of the part's arc.
@@ -2710,53 +2704,3 @@ fn an_emboss_that_works_has_no_warning() {
        run(&mut s, "edit.undo", json!({}));
    }
 }
-
-/// #9969: a cut whose tool lies clear of the body reported "operation complete" and changed
-/// nothing, with no warning. It now says it removed no material; a cut that works says nothing.
-#[test]
-fn a_cut_that_removes_nothing_says_so() {
-    let mut s = Session::default();
-    run(&mut s, "solid.box", json!({"length": 40, "width": 30, "height": 10}));
-    let before = volume(&mut s);
-    // A square drawn 100 mm beside the box: its prism never meets the body.
-    run(&mut s, "sketch.create", json!({"plane": "XY", "offset": 10}));
-    run(&mut s, "sketch.rectangle.two_point", json!({"p0": [100, 100], "p1": [110, 110]}));
-    run(&mut s, "sketch.finish", json!({}));
-    let reply = run(&mut s, "solid.extrude", json!({"direction": "negative", "distance": 5, "operation": "cut"}));
-    let warning = reply["warning"].as_str().unwrap_or_default();
-    assert!(warning.contains("the cut removes no material"), "{reply}");
-    assert!((volume(&mut s) - before).abs() < 1e-9 * before);
-    // The same cut over the box takes material and says nothing.
-    run(&mut s, "edit.undo", json!({}));
-    run(&mut s, "sketch.create", json!({"plane": "XY", "offset": 10}));
-    run(&mut s, "sketch.rectangle.two_point", json!({"p0": [10, 10], "p1": [20, 20]}));
-    run(&mut s, "sketch.finish", json!({}));
-    let reply = run(&mut s, "solid.extrude", json!({"direction": "negative", "distance": 5, "operation": "cut"}));
-    assert!(reply["warning"].is_null(), "{reply}");
-    assert!(volume(&mut s) < before - 400.0);
-}
-
-/// #9969 through sheet metal: a cut the flat pattern takes, drawn clear of the sheet, changes
-/// nothing and says so; the same cut over the sheet takes material and says nothing.
-#[test]
-fn a_sheet_metal_cut_that_removes_nothing_says_so() {
-    let mut s = Session::default();
-    run(&mut s, "sketch.create", json!({"plane": "XY", "name": "Base"}));
-    run(&mut s, "sketch.rectangle.two_point", json!({"p0": [0, 0], "p1": [100, 60]}));
-    run(&mut s, "sketch.finish", json!({}));
-    run(&mut s, "sheet.flange", json!({"sketch": "Base"}));
-    let before = volume(&mut s);
-    run(&mut s, "sketch.create", json!({"plane": "XY", "name": "Away"}));
-    run(&mut s, "sketch.rectangle.two_point", json!({"p0": [200, 200], "p1": [210, 210]}));
-    run(&mut s, "sketch.finish", json!({}));
-    let reply = run(&mut s, "solid.extrude", json!({"sketch": "Away", "through_all": true, "direction": "symmetric", "operation": "cut"}));
-    let warning = reply["warning"].as_str().unwrap_or_default();
-    assert!(warning.contains("the cut removes no material"), "{reply}");
-    assert!((volume(&mut s) - before).abs() < 1e-9 * before);
-    run(&mut s, "sketch.create", json!({"plane": "XY", "name": "Over"}));
-    run(&mut s, "sketch.rectangle.two_point", json!({"p0": [10, 10], "p1": [20, 20]}));
-    run(&mut s, "sketch.finish", json!({}));
-    let reply = run(&mut s, "solid.extrude", json!({"sketch": "Over", "through_all": true, "direction": "symmetric", "operation": "cut"}));
-    assert!(!reply["warning"].as_str().unwrap_or_default().contains("removes no material"), "{reply}");
-    assert!(volume(&mut s) < before - 50.0);
-}
@@ -23,26 +23,12 @@ use solidcraft_io::Format;
 use super::CommandSpec;
 use super::print_face;
 use crate::params::{bad, bool_, num, str_, string_list};
-use crate::schema::file::ExportResult;
-use crate::schema::insert_mesh::{InsertMeshParams, MeshInserted};
-use crate::schema::new_design::{NewDesignParams, NewDesignResult};
 use crate::schema::save::{SaveAsParams, SaveParams, SaveResult};
-#[cfg(not(target_arch = "wasm32"))]
-use crate::schema::save_mesh::{SaveMeshResult, SlicerDelivery};
-use crate::schema::slicers::{SlicerInfo, SlicersParams, SlicersResult};
 use crate::schema::{TypedContract, output_schema_for};
 use crate::{EngineError, Result, Session};

-const INSERT_MESH_CONTRACT: TypedContract<InsertMeshParams> = TypedContract::new();
-
 pub static COMMANDS: &[CommandSpec] = &[
-    CommandSpec::new("file.new", "New Design", crate::checked!("file.new", new_doc))
-        .icon("new")
-        .key("Ctrl+N")
-        .noundo()
-        .contract(&NEW_DESIGN_CONTRACT)
-        .output(output_schema_for::<NewDesignResult>)
-        .params("name?"),
+    CommandSpec::new("file.new", "New Design", new_doc).icon("new").key("Ctrl+N").noundo().params("name?"),
    CommandSpec::new("doc.open", "Open", open)
        .icon("open")
        .key("Ctrl+O")
@@ -52,12 +38,10 @@ pub static COMMANDS: &[CommandSpec] = &[
        .at("SOLID", "INSERT")
        .icon("import")
        .params("path: STEP, IGES, FreeCAD .FCStd or Rhino .3dm file (its bodies join the design as an Import base feature in a new component named after the file, placed in the active component; an assembly's products become nested components, a repeated part one component with an occurrence per placement, all held as one rigid group until component.unlock → component, component_name, occurrence, subcomponents?, rigid_joints?, group?: the folder); folder?: bool (default false; true: an import that brings more than one item into the history (its Import feature and the rigid joints holding its parts) goes into a new history folder named `Group #N`); name? (the feature's and the component's); up?: z|y (default z: the file's axes are kept; y: the file has Y up, so the import's component is turned a quarter turn about X, Y becoming Z → stand_up: its occurrence); names?: auto|solid|product|instance (default auto: keep meaningful solid names, replace placeholders with the nearest named product, else instance; solid: the solid's own name; product: the part's name; instance: the occurrence's name, else the product's); matrix?: [12 or 16 numbers] (where the new component's occurrence sits in the active component, after `up`: a rigid row-major 3x4 rotation-and-translation or 4x4 matrix, flat or as rows, as occurrence.move takes it; a scale, shear or mirror is refused before the file is read); tolerance? (see occurrence.move)"),
-    CommandSpec::new("file.insert_mesh", "Insert Mesh", crate::checked!("file.insert_mesh", insert_mesh))
+    CommandSpec::new("file.insert_mesh", "Insert Mesh", insert_mesh)
        .at("SOLID", "INSERT")
        .icon("import")
-        .contract(&INSERT_MESH_CONTRACT)
-        .output(output_schema_for::<MeshInserted>)
-        .params("path: .3mf, .stl, .obj, .ply (with faces), .glb or .gltf file (its meshes join the design as mesh bodies in a new component named after the file → component, component_name, occurrence; a glTF file's node tree becomes nested components held as one rigid group until component.unlock, a mesh placed again another occurrence, its materials the bodies' appearances, and its metres millimetres); name?; up?: z|y for a glTF file (default y: glTF has Y up, so the import's component is turned a quarter turn about X, Y becoming Z → stand_up: its occurrence; z: the file's axes are kept); units?: mm|cm|m|in|ft for an STL or OBJ file, or a PLY file with faces (default mm): the unit its coordinates are in, scaled to millimetres as the file is read (a 3MF or glTF file states its own). The design keeps the millimetre mesh and not the unit, so insert the file again to try another; origin?: bool (default false: the mesh keeps its file's coordinates; true: once read, scaled and stood up, the import's occurrence is moved so the box around its bodies is centred on X and Y of the active component with its lowest point on Z = 0 → moved_to_origin: [x, y, z], the shift made); crease_angle_degrees?: 0..180 (0 clears imported shading normals for the previous flat-shading behavior; positive angles regenerate angle-weighted normals across manifold edges below this crease angle; omitted keeps authored OBJ normals/smoothing groups, or flat shading when absent; geometry stays unchanged)"),
+        .params("path: .3mf, .stl, .obj, .ply (with faces), .glb or .gltf file (its meshes join the design as mesh bodies in a new component named after the file → component, component_name, occurrence; a glTF file's node tree becomes nested components held as one rigid group until component.unlock, a mesh placed again another occurrence, its materials the bodies' appearances, and its metres millimetres); name?; up?: z|y for a glTF file (default y: glTF has Y up, so the import's component is turned a quarter turn about X, Y becoming Z → stand_up: its occurrence; z: the file's axes are kept); units?: mm|cm|m|in|ft for an STL or OBJ file, or a PLY file with faces (default mm): the unit its coordinates are in, scaled to millimetres as the file is read (a 3MF or glTF file states its own). The design keeps the millimetre mesh and not the unit, so insert the file again to try another; origin?: bool (default false: the mesh keeps its file's coordinates; true: once read, scaled and stood up, the import's occurrence is moved so the box around its bodies is centred on X and Y of the active component with its lowest point on Z = 0 → moved_to_origin: [x, y, z], the shift made)"),
    CommandSpec::new("file.save", "Save", crate::checked!("file.save", save))
        .icon("save")
        .key("Ctrl+S")
@@ -79,11 +63,9 @@ pub static COMMANDS: &[CommandSpec] = &[
        .noundo()
        .params("id (from doc.recovery_list); dir?; discard?: bool (delete the entry once open) — opens it with its file path, unsaved"),
    CommandSpec::new("doc.recovery_discard", "Discard Recovered Design", recovery_discard).icon("delete").noundo().params("id, or all: true; dir?"),
-    CommandSpec::new("file.export", "Export", crate::checked!("file.export", export))
+    CommandSpec::new("file.export", "Export", export)
        .icon("export")
        .noundo()
-        .contract(&EXPORT_CONTRACT)
-        .output(crate::schema::output_schema_for::<crate::schema::file::FileExportResult>)
        .params("path; format?: stl|stla|obj|step|3mf|3mf-tagged|urdf|json (default from extension; 3mf-tagged: 3MF whose triangles carry their B-rep face, at full precision, for meshing and analysis tools; docs/formats/3mf-face-tags.md; obj: the colours of the bodies go in a material library (`.mtl`) written next to the mesh file; urdf: the whole assembly as a robot, with STL meshes written next to it; docs/urdf.md); bodies?: [names] (JSON and URDF export the complete design); urdf only: mesh_prefix? (before each mesh file name, e.g. package://robot/meshes/), effort? (default 1000), velocity? (default 10); quality?: standard|fine|finest (STL, OBJ and 3MF: how closely the mesh follows curved faces, a chord tolerance of 2e-4, 5e-5 or 1e-5 of each body's size; default standard); objects?: body|component (3MF only: one object per body, the default, or one object for each placed component with two or more bodies, with those bodies as its parts, so a slicer loads them as one object with parts)"),
    // One command per format, so each File › Export item can have a key of its own; started
    // from a key or command search, the app opens the save picker (the mesh dialog for STL and
@@ -118,12 +100,10 @@ pub static COMMANDS: &[CommandSpec] = &[
        .contract(&EXPORT_URDF_CONTRACT)
        .output(crate::schema::output_schema_for::<crate::schema::file::UrdfExportResult>)
        .params("path; mesh_prefix?; effort? (default 1000); velocity? (default 10) → {path, format, files, links, joints, warnings}: the whole assembly as a robot, with STL meshes written next to it; docs/urdf.md"),
-    CommandSpec::new("file.save_mesh", "Save As Mesh", crate::checked!("file.save_mesh", save_mesh))
+    CommandSpec::new("file.save_mesh", "Save As Mesh", save_mesh)
        .at("INSERT", "FILES")
        .icon("mesh_export")
        .noundo()
-        .contract(&SAVE_MESH_CONTRACT)
-        .output(crate::schema::output_schema_for::<crate::schema::save_mesh::SaveMeshResult>)
        .params("path; format?: stl|3mf|3mf-tagged (default from the extension, else stl; 3mf-tagged: docs/formats/3mf-face-tags.md); bodies?: [names] (default: all); ascii?: bool (STL); slicer?: id or name from file.slicers, the program path it lists, or a program the user added under Custom… (send the saved file there, through the same steps as file.send_to_slicer: a slicer that has to be started first is waited for; may be deprecated later in favour of file.send_to_slicer or a Send to App workflow, kept for scripts); single_instance?: bool (default true; see file.send_to_slicer); quality?: standard|fine|finest (STL, OBJ and 3MF: how closely the mesh follows curved faces, a chord tolerance of 2e-4, 5e-5 or 1e-5 of each body's size; default standard); objects?: body|component (3MF only: one object per body, the default, or one object for each placed component with two or more bodies, with those bodies as its parts, so a slicer loads them as one object with parts)"),
    CommandSpec::new("file.send_to_slicer", "Send to Slicer", send_to_slicer)
        .enabled(starts_programs)
@@ -135,11 +115,8 @@ pub static COMMANDS: &[CommandSpec] = &[
        .icon("mesh_export")
        .noundo()
        .params("consent: bool (required: true only once the user has agreed to upload the model to Printables' servers; it stays there for 30 minutes and opening it needs a Printables sign-in); bodies?: [names] (default: the selected bodies); format?: 3mf|stl (default 3mf, in millimetres) → uploads the bodies to EasyPrint, Printables' slicer in the browser, and opens it in the browser. 100 MB at most. Works in the desktop app and the browser build; the CLI has no way to upload yet"),
-    CommandSpec::new("file.slicers", "Installed Slicers", crate::checked!("file.slicers", slicers))
-        .icon("export")
+    CommandSpec::new("file.slicers", "Installed Slicers", slicers).icon("export")
        .noundo()
-        .contract(&SLICERS_CONTRACT)
-        .output(output_schema_for::<SlicersResult>)
        .params("→ the slicers found on this machine: [{id, name, program, icon?}]; pass an id, a name or the program path as file.send_to_slicer's or file.save_mesh's `slicer`"),
 ];

@@ -148,22 +125,16 @@ fn new_doc(s: &mut Session, p: &Value) -> Result<Value> {
    s.replace_design(Session::new(Document::new(name)));
    // A name given here is the user's own, so Save As keeps it (#4907); "Untitled" is none.
    s.user_named = !name.trim().is_empty() && name.trim() != DEFAULT_NAME;
-    let reply = NewDesignResult { name: name.to_string(), param_warnings: Vec::new() };
-    serde_json::to_value(reply).map_err(|e| bad("file.new", e.to_string()))
+    Ok(json!({"name": name}))
 }

-const NEW_DESIGN_CONTRACT: TypedContract<NewDesignParams> = TypedContract::new();
-
-const EXPORT_CONTRACT: crate::schema::TypedContract<crate::schema::file::ExportParams> = crate::schema::TypedContract::new();
 const SAVE_CONTRACT: TypedContract<SaveParams> = TypedContract::new();
 const SAVE_AS_CONTRACT: TypedContract<SaveAsParams> = TypedContract::new();
 const EXPORT_STEP_CONTRACT: crate::schema::TypedContract<crate::schema::file::ExportStepParams> = crate::schema::TypedContract::new();
 const EXPORT_STL_CONTRACT: crate::schema::TypedContract<crate::schema::file::ExportMeshParams> = crate::schema::TypedContract::new();
 const EXPORT_3MF_CONTRACT: crate::schema::TypedContract<crate::schema::file::Export3mfParams> = crate::schema::TypedContract::new();
 const EXPORT_OBJ_CONTRACT: crate::schema::TypedContract<crate::schema::file::ExportMeshParams> = crate::schema::TypedContract::new();
-const SLICERS_CONTRACT: TypedContract<SlicersParams> = TypedContract::new();
 const EXPORT_URDF_CONTRACT: crate::schema::TypedContract<crate::schema::file::ExportUrdfParams> = crate::schema::TypedContract::new();
-const SAVE_MESH_CONTRACT: crate::schema::TypedContract<crate::schema::save_mesh::SaveMeshParams> = crate::schema::TypedContract::new();

 fn path_arg<'a>(p: &'a Value, cmd: &str) -> Result<&'a str> {
    str_(p, "path").filter(|x| !x.trim().is_empty() && x.len() < 4096).ok_or_else(|| bad(cmd, "`path` is required"))
@@ -299,19 +270,11 @@ fn created_bodies(s: &Session, feature: u64) -> Vec<String> {
 /// Add a MeshImport feature for a 3MF, STL, OBJ or glTF file, in a new component named after the
 /// file. A glTF file's nodes become components in it, and its materials the bodies' looks; it is
 /// in metres with Y up, so unless `y_up` is false its component is turned to Z up (#1505).
-fn add_mesh(
-    s: &mut Session,
-    path: &str,
-    name: Option<&str>,
-    y_up: Option<bool>,
-    unit: Option<(&'static str, f64)>,
-    origin: bool,
-    crease_angle: Option<f64>,
-) -> Result<Value> {
+fn add_mesh(s: &mut Session, path: &str, name: Option<&str>, y_up: Option<bool>, unit: Option<(&'static str, f64)>, origin: bool) -> Result<Value> {
    let err = |e: solidcraft_io::IoError| EngineError::Other(format!("{path}: {e}"));
    let bytes = solidcraft_io::vfs::read(path, solidcraft_io::MAX_3MF_BYTES).map_err(|e| EngineError::Other(format!("{path}: {e}")))?;
    let gltf = solidcraft_io::is_gltf_path(path);
-    let (mut mf, plan, looks) = if gltf {
+    let (mf, plan, looks) = if gltf {
        let dir = std::path::Path::new(path).parent().map(std::path::Path::to_path_buf).unwrap_or_default();
        let mut load =
            |name: &str| solidcraft_io::vfs::read(&dir.join(name).to_string_lossy(), solidcraft_io::MAX_GLTF_BYTES).map_err(|e| e.to_string());
@@ -323,19 +286,6 @@ fn add_mesh(
    } else {
        (solidcraft_io::mesh_import_feature_in(&bytes, path, unit.map_or(1.0, |(_, mm)| mm)).map_err(err)?, None, Vec::new())
    };
-    if let Some(angle) = crease_angle
-        && let solidcraft_doc::FeatureKind::MeshImport { meshes, .. } = &mut mf.kind
-    {
-        for mesh in meshes {
-            if angle == 0.0 {
-                // Keep the original flat display path, including its normalization
-                // and storage behavior, when the caller opts out of imported shading.
-                mesh.corner_normals = Default::default();
-            } else {
-                mesh.generate_crease_normals(angle).map_err(|e| bad("file.insert_mesh", e.to_string()))?;
-            }
-        }
-    }
    let fname = name.filter(|n| !n.trim().is_empty()).unwrap_or(&mf.name).to_string();
    let cname = import::component_name(path, name);
    let tree = match &plan {
@@ -357,24 +307,18 @@ fn add_mesh(
    // After the turn, so it is the stood-up mesh that sits on Z = 0.
    let moved = if origin { import::move_to_origin(s, &placed)? } else { None };
    let fname = s.doc.feature(id).map(|f| f.name.clone()).unwrap_or_default();
-    let reply = MeshInserted {
-        path: path.to_string(),
-        feature: id,
-        name: fname,
-        bodies: bodies.clone(),
-        created_bodies: bodies,
-        warnings: mf.warnings,
-        component: placed.component,
-        component_name: placed.name.clone(),
-        occurrence: placed.occurrence,
-        subcomponents: (placed.components > 0).then_some(placed.components),
-        rigid_joints: (placed.components > 0).then_some(placed.joints.len()),
-        moved_to_origin: moved.map(|shift| [shift.x, shift.y, shift.z]),
-        units: unit.map(|(name, _)| name.to_string()),
-        stand_up: turned,
-        param_warnings: Vec::new(),
-    };
-    serde_json::to_value(reply).map_err(|e| bad("file.insert_mesh", e.to_string()))
+    let mut out = json!({"path": path, "feature": id, "name": fname, "bodies": bodies, "created_bodies": bodies, "warnings": mf.warnings});
+    placed.report(&mut out);
+    if let Some(shift) = moved {
+        out["moved_to_origin"] = json!([shift.x, shift.y, shift.z]);
+    }
+    if let Some((name, _)) = unit {
+        out["units"] = json!(name);
+    }
+    if let Some(turned) = turned {
+        out["stand_up"] = json!(turned);
+    }
+    Ok(out)
 }

 /// Turn an import's component a quarter turn about X (the file's Y up becomes Z up), contents
@@ -429,20 +373,7 @@ fn insert_mesh(s: &mut Session, p: &Value) -> Result<Value> {
    }
    let up = mesh_up(p, path, cmd)?;
    let unit = mesh_units(p, path, cmd)?;
-    let crease_angle = mesh_crease_angle(p.get("crease_angle_degrees")).map_err(|message| bad(cmd, message))?;
-    add_mesh(s, path, str_(p, "name"), up, unit, mesh_origin(p, cmd)?, crease_angle)
-}
-
-/// The shading-only crease reader, shared by the handler and its typed contract.
-pub(crate) fn mesh_crease_angle(value: Option<&Value>) -> std::result::Result<Option<f64>, &'static str> {
-    match value {
-        None | Some(Value::Null) => Ok(None),
-        Some(value) => value
-            .as_f64()
-            .filter(|v| v.is_finite() && (0.0..=180.0).contains(v))
-            .map(Some)
-            .ok_or("crease_angle_degrees must be between 0 and 180 degrees"),
-    }
+    add_mesh(s, path, str_(p, "name"), up, unit, mesh_origin(p, cmd)?)
 }

 /// `origin`: whether a mesh import is moved to the origin (#12543). Off unless asked, so a mesh
@@ -535,7 +466,7 @@ fn open(s: &mut Session, p: &Value) -> Result<Value> {
        let r = if solidcraft_io::is_step_path(path) {
            add_step(&mut fresh, path, None, &step_options(p, "doc.open")?)?
        } else {
-            add_mesh(&mut fresh, path, None, mesh_up(p, path, "doc.open")?, mesh_units(p, path, "doc.open")?, mesh_origin(p, "doc.open")?, None)?
+            add_mesh(&mut fresh, path, None, mesh_up(p, path, "doc.open")?, mesh_units(p, path, "doc.open")?, mesh_origin(p, "doc.open")?)?
        };
        // The design is the file: its component is the one being worked in.
        if let Some(c) = r["component"].as_u64() {
@@ -919,7 +850,7 @@ fn saved_preview(s: &Session) -> Option<solidcraft_io::DesignPreview> {
    for body in &world.bodies {
        let mesh = body.cached_mesh()?;
        bytes =
-            bytes.saturating_add(mesh.positions.len().saturating_mul(24)).saturating_add(mesh.triangles.len().saturating_mul(84)).saturating_add(32);
+            bytes.saturating_add(mesh.positions.len().saturating_mul(24)).saturating_add(mesh.triangles.len().saturating_mul(12)).saturating_add(24);
        triangles = triangles.saturating_add(mesh.triangles.len());
        if bytes > 8 << 20 || triangles > 100_000 {
            return None;
@@ -929,7 +860,6 @@ fn saved_preview(s: &Session) -> Option<solidcraft_io::DesignPreview> {
            positions: mesh.positions.iter().flat_map(|p| [p.x, p.y, p.z]).collect(),
            triangles: mesh.triangles.iter().flatten().copied().collect(),
            color: s.doc.body_color(body),
-            corner_normals: mesh.triangles.iter().flatten().filter_map(|&i| mesh.normals.get(i as usize)).flat_map(|n| [n.x, n.y, n.z]).collect(),
        });
    }
    Some(preview)
@@ -1047,9 +977,7 @@ fn export_to(
        solidcraft_io::export_with_parts(&s.doc.painted(&*s.world_state()?), bodies, parts, format, &name, &s.doc.metadata, quality)?
    };
    solidcraft_io::vfs::write(path, &bytes).map_err(|e| EngineError::Other(format!("{path}: {e}")))?;
-    let reply =
-        ExportResult { path: path.to_string(), bytes: bytes.len(), format: format!("{format:?}"), files: Vec::new(), param_warnings: Vec::new() };
-    serde_json::to_value(reply).map_err(|e| EngineError::Other(e.to_string()))
+    Ok(json!({"path": path, "bytes": bytes.len(), "format": format!("{format:?}")}))
 }

 /// [`export_to`] for a mesh file a slicer is sent (STL or 3MF): each body laid on its print face.
@@ -1067,16 +995,9 @@ fn export_laid_to(
    let laid = print_face::lay_on_print_faces(s, &mut state, bodies, parts);
    let bytes = solidcraft_io::export_with_parts(&state, bodies, parts, format, &name, &s.doc.metadata, quality)?;
    solidcraft_io::vfs::write(path, &bytes).map_err(|e| EngineError::Other(format!("{path}: {e}")))?;
-    let reply = SaveMeshResult {
-        path: path.to_string(),
-        bytes: bytes.len(),
-        format: format!("{format:?}"),
-        print_faces: laid.bodies,
-        warnings: laid.warnings,
-        delivery: SlicerDelivery::default(),
-        param_warnings: Vec::new(),
-    };
-    serde_json::to_value(reply).map_err(|e| EngineError::Other(e.to_string()))
+    let mut out = json!({"path": path, "bytes": bytes.len(), "format": format!("{format:?}")});
+    laid.report(&mut out);
+    Ok(out)
 }

 fn export(s: &mut Session, p: &Value) -> Result<Value> {
@@ -1295,16 +1216,11 @@ fn send_to_slicer(s: &mut Session, p: &Value) -> Result<Value> {
 }

 fn slicers(_: &mut Session, _: &Value) -> Result<Value> {
-    let slicers = crate::slicers::detect()
+    let list: Vec<Value> = crate::slicers::detect()
        .iter()
-        .map(|d| SlicerInfo {
-            id: d.id.clone(),
-            name: d.name.clone(),
-            program: d.command.first().cloned(),
-            icon: d.icon.as_ref().map(|i| i.path().to_string_lossy().into_owned()),
-        })
+        .map(|d| json!({"id": d.id, "name": d.name, "program": d.command.first(), "icon": d.icon.as_ref().map(|i| i.path().to_string_lossy().into_owned())}))
        .collect();
-    serde_json::to_value(SlicersResult { slicers, param_warnings: Vec::new() }).map_err(|e| bad("file.slicers", e.to_string()))
+    Ok(json!({ "slicers": list }))
 }

 fn recovery_dir(p: &Value, cmd: &str) -> Result<std::path::PathBuf> {
@@ -2082,95 +1998,6 @@ mod tests {
        std::fs::remove_file(path).unwrap();
    }

-    #[test]
-    fn mesh_import_explicit_crease_normals_are_undoable_and_survive_cached_reopen() {
-        let dir = std::env::temp_dir().join(format!("solidcraft-mesh-normals-{}", std::process::id()));
-        std::fs::create_dir_all(&dir).unwrap();
-        let path = dir.join("fold.obj");
-        std::fs::write(&path, "v 0 0 0\nv 1 0 0\nv 0 1 0\nv 0 -0.8660254037844386 0.5\nf 1 2 3\nf 2 1 4\n").unwrap();
-        let mut session = Session { param_check: crate::schema::ParamCheck::Strict, ..Session::default() };
-        let before = session.doc.to_json();
-        for bad_angle in [json!(-1), json!(181), json!("smooth")] {
-            let result = session.execute("file.insert_mesh", &json!({"path":path, "crease_angle_degrees":bad_angle}));
-            assert!(result.unwrap_err().to_string().contains("crease_angle_degrees"));
-            assert_eq!(session.doc.to_json(), before);
-        }
-        session.execute("file.insert_mesh", &json!({"path":path, "crease_angle_degrees":40})).unwrap();
-        let normals = |s: &Session| s.model.state().bodies[0].mesh().normals.clone();
-        let expected = normals(&session);
-        assert!(expected[0].y > 0.2 && expected[0].z > 0.9);
-        session.execute("edit.undo", &json!({})).unwrap();
-        assert!(session.model.state().bodies.is_empty());
-        session.execute("edit.redo", &json!({})).unwrap();
-        assert_eq!(normals(&session), expected);
-        let bytes = session.design_container(solidcraft_io::DesignCompression::Fast, false, true).unwrap();
-        let cached = solidcraft_io::read_design_geometry(&bytes).expect("shaded mesh retains native cache");
-        assert!(!cached.bodies[0].body.triangle_corner_normals().unwrap().is_empty());
-        let saved_path = dir.join("shaded.sc");
-        std::fs::write(&saved_path, &bytes).unwrap();
-        let mut reopened = Session::default();
-        reopened.execute("doc.open", &json!({"path":saved_path})).unwrap();
-        assert_eq!(normals(&reopened), expected);
-        let doc = solidcraft_io::read_design(&bytes).unwrap();
-        let cold = Session::new(doc);
-        assert_eq!(normals(&cold), expected);
-        std::fs::remove_dir_all(dir).unwrap();
-    }
-
-    #[test]
-    fn mesh_import_zero_crease_restores_legacy_flat_shading_and_survives_reopen() {
-        let dir = std::env::temp_dir().join(format!("solidcraft-obj-flat-{}", std::process::id()));
-        std::fs::create_dir_all(&dir).unwrap();
-        let vertices = "v 0 0 0\nv 1 0 0\nv 0 1 0\nv 0 -0.8660254037844386 0.5\n";
-        let faces = "f 1 2 3\nf 2 1 4\n";
-        let reference_path = dir.join("reference.obj");
-        std::fs::write(&reference_path, format!("{vertices}{faces}")).unwrap();
-        let mut reference = Session { param_check: crate::schema::ParamCheck::Strict, ..Session::default() };
-        reference.execute("file.insert_mesh", &json!({"path":reference_path})).unwrap();
-        let display = |s: &Session| {
-            let mesh = s.model.state().bodies[0].mesh();
-            (mesh.positions.clone(), mesh.triangles.clone(), mesh.normals.clone())
-        };
-        let expected = display(&reference);
-        for (name, source) in
-            [("groups", format!("{vertices}s 1\n{faces}")), ("authored", format!("{vertices}vn 0 1 1\nf 1//1 2//1 3//1\nf 2//1 1//1 4//1\n"))]
-        {
-            let path = dir.join(format!("{name}.obj"));
-            std::fs::write(&path, source).unwrap();
-            let mut annotated = Session { param_check: crate::schema::ParamCheck::Strict, ..Session::default() };
-            annotated.execute("file.insert_mesh", &json!({"path":path})).unwrap();
-            assert_ne!(display(&annotated).2, expected.2, "{name} must exercise imported shading");
-            let mut session = Session { param_check: crate::schema::ParamCheck::Strict, ..Session::default() };
-            session.execute("file.insert_mesh", &json!({"path":path, "crease_angle_degrees":0})).unwrap();
-            assert_eq!(display(&session), expected, "{name} uses the exact former flat display path");
-            let meshes = session
-                .doc
-                .features
-                .iter()
-                .find_map(|f| match &f.kind {
-                    solidcraft_doc::FeatureKind::MeshImport { meshes, .. } => Some(meshes),
-                    _ => None,
-                })
-                .unwrap();
-            assert!(meshes.iter().all(|mesh| mesh.corner_normals.is_empty()));
-            session.execute("edit.undo", &json!({})).unwrap();
-            assert!(session.model.state().bodies.is_empty());
-            session.execute("edit.redo", &json!({})).unwrap();
-            assert_eq!(display(&session), expected);
-            let bytes = session.design_container(solidcraft_io::DesignCompression::Fast, false, true).unwrap();
-            let cached = solidcraft_io::read_design_geometry(&bytes).unwrap();
-            assert!(cached.bodies[0].body.triangle_corner_normals().unwrap().is_empty());
-            let saved_path = dir.join(format!("{name}.sc"));
-            std::fs::write(&saved_path, &bytes).unwrap();
-            let mut reopened = Session::default();
-            reopened.execute("doc.open", &json!({"path":saved_path})).unwrap();
-            assert_eq!(display(&reopened), expected);
-            let cold = Session::new(solidcraft_io::read_design(&bytes).unwrap());
-            assert_eq!(display(&cold), expected);
-        }
-        std::fs::remove_dir_all(dir).unwrap();
-    }
-
    /// #9170: a design holding a mesh body (an inserted STL) keeps its saved model and opens from
    /// it. One mesh body left the cache out for the whole model, so every feature, the boxes
    /// too, was evaluated again on opening.
@@ -13,7 +13,6 @@ use solidcraft_io::Format;
 use super::easyprint::{Exported, export_bodies};
 use super::export_laid_to;
 use crate::params::bad;
-use crate::schema::save_mesh::SlicerDelivery;
 use crate::slicers::{self, Slicer, TargetKind};
 use crate::{EngineError, Result, Session};

@@ -121,24 +120,18 @@ fn deliver_via(
    out: &mut Value,
 ) {
    let Some(obj) = out.as_object_mut() else { return };
-    // What happened, as the typed value the reply's schema describes; only its one key is set.
-    let mut say = |delivery: SlicerDelivery| {
-        if let Ok(Value::Object(keys)) = serde_json::to_value(delivery) {
-            obj.extend(keys);
-        }
-    };
    // A target that drops a file given at a cold start is started alone, and sent the file once it is ready.
    if wait != Wait::No && target.waits_for_ready().is_some() && target.ready_via(busctl, slicers::PROBE_LIMIT) == Some(false) {
        if let Err(e) = target.start(single_instance) {
-            say(SlicerDelivery { slicer_error: Some(e), ..Default::default() });
+            obj.insert("slicer_error".into(), json!(e));
            return;
        }
        if wait == Wait::Return {
-            say(SlicerDelivery { starting: Some(target.name.clone()), ..Default::default() });
+            obj.insert("starting".into(), json!(target.name));
            return;
        }
        if !slicers::wait_for_ready_via(target, busctl, limit, poll) {
-            say(SlicerDelivery { slicer_timeout: Some(target.name.clone()), ..Default::default() });
+            obj.insert("slicer_timeout".into(), json!(target.name));
            return;
        }
        // After a start the file has to reach the instance that is now running, so the flag goes
@@ -147,8 +140,8 @@ fn deliver_via(
    }
    // The file is saved either way; a program that won't start is reported, not fatal.
    match target.open(path, single_instance) {
-        Ok(()) => say(SlicerDelivery { slicer: Some(target.name.clone()), ..Default::default() }),
-        Err(e) => say(SlicerDelivery { slicer_error: Some(e), ..Default::default() }),
+        Ok(()) => obj.insert("slicer".into(), json!(target.name)),
+        Err(e) => obj.insert("slicer_error".into(), json!(e)),
    };
 }

@@ -1,8 +1,7 @@
 //! A portable picture from warm display meshes only; never evaluate on save.
 use crate::Session;
 use solidcraft_geom::Aabb3;
-use solidcraft_geom::MeshGeom;
-use solidcraft_viewport::{Camera, Rgb, Scene, SceneMesh, StandardView};
+use solidcraft_render::{Camera, Rgb, Scene, SceneMesh, StandardView};

 pub(super) fn saved(s: &Session) -> Option<Vec<u8>> {
    let (scene, camera) = scene(s)?;
@@ -45,7 +44,7 @@ fn scene(s: &Session) -> Option<(Scene, Camera)> {
    }
    let mut camera = Camera::default();
    camera.set_view(StandardView::Iso);
-    camera.fit(&solidcraft_render::view_bounds(&bounds));
+    camera.fit(&bounds);
    camera.distance *= 0.7;
    scene.radius = (bounds.diagonal() * 0.5).max(camera.half_height()).max(10.);
    scene.background = Some((crate::view::colors::BG_TOP, crate::view::colors::BG_BOTTOM));
@@ -803,7 +803,7 @@ pub(super) fn appearance(s: &mut Session, p: &Value) -> Result<Value> {
    }
    let mut comps: Vec<u64> = Vec::new();
    for c in string_list(cmd, p, "components")? {
-        let id = s.component_or_placement(&c).map_err(|error| bad(cmd, error.to_string()))?.ok_or_else(|| bad(cmd, format!("no component `{c}`")))?;
+        let id = s.component_or_placement(&c).ok_or_else(|| bad(cmd, format!("no component `{c}`")))?;
        comps.push(id);
    }
    if bodies.is_empty() && faces.is_empty() && comps.is_empty() {
@@ -10,7 +10,6 @@
 //! rather than holding the call. The shared part is measured as `solidcraft_kernel::measure`
 //! measures it (its mass properties alone).

-use solidcraft_geom::MeshGeom;
 use std::collections::HashSet;
 use std::sync::Arc;

@@ -464,12 +464,7 @@ pub(crate) fn occurrence_id(s: &Session, v: Option<&Value>, cmd: &str) -> Result
        return Ok(o.id);
    }
    // A component name: its first occurrence.
-    s.doc
-        .resolve_component(&key)
-        .map_err(|error| bad(cmd, error.to_string()))?
-        .and_then(|c| s.doc.occurrence_of(c))
-        .map(|o| o.id)
-        .ok_or_else(|| bad(cmd, format!("no occurrence `{key}`")))
+    s.doc.find_component(&key).and_then(|c| s.doc.occurrence_of(c)).map(|o| o.id).ok_or_else(|| bad(cmd, format!("no occurrence `{key}`")))
 }

 /// The occurrence whose bodies are nearest a world point (0 = root bodies).
@@ -7,7 +7,6 @@
 use std::f64::consts::PI;

 use serde_json::{Value, json};
-use solidcraft_geom::Vec3Geom;

 use crate::Session;

@@ -122,42 +121,6 @@ fn a_surface_loft_follows_its_rail() {
    assert!((m.bbox.min.x + 15.0).abs() < 1e-2, "{:?}", m.bbox);
 }

-/// A hull sheet from a keel (vertical) to a sheer (level) along a transom and a stem (#12031): the
-/// keel's sketch facing −Y or +Y draws the same curve, and the loft is the same either way. The
-/// stations between the two sections, at 90° to each other, used to turn with the keel's sketch.
-#[test]
-fn a_sections_sketch_facing_does_not_change_a_railed_loft() {
-    let hull = |keel_plane: Value, dip: f64| {
-        let mut s = Session::default();
-        let sketch = |s: &mut Session, name: &str, plane: Value, cmd: &str, p: Value| {
-            run(s, "sketch.create", json!({"name": name, "plane": plane}));
-            run(s, cmd, p);
-            run(s, "sketch.finish", json!({}));
-        };
-        let at = |o: [i32; 3], x: [i32; 3], y: [i32; 3]| json!({"origin": o, "x_dir": x, "y_dir": y});
-        sketch(&mut s, "Keel", keel_plane, "sketch.spline.fit_point", json!({"points": [[20, 0], [131, dip], [250, 0]]}));
-        sketch(&mut s, "Sheer", at([0, 0, 20], [1, 0, 0], [0, 1, 0]), "sketch.spline.fit_point", json!({"points": [[250, 42], [177, 50], [20, 0]]}));
-        sketch(
-            &mut s,
-            "Transom",
-            at([250, 0, 0], [0, 1, 0], [0, 0, 1]),
-            "sketch.spline.fit_point",
-            json!({"points": [[0, 0], [40.5, 12.3], [42, 20]]}),
-        );
-        // The XZ sketch's y runs down world Z.
-        sketch(&mut s, "Stem", json!("XZ"), "sketch.line", json!({"points": [[20, 0], [20, -20]]}));
-        let p = json!({"sections": [{"sketch": "Keel", "curves": ["s1"]}, {"sketch": "Sheer", "curves": ["s1"]}],
-            "rails": [{"sketch": "Transom", "curves": ["s1"]}, {"sketch": "Stem", "curves": ["l1"]}], "body_name": "Hull"});
-        s.execute("surface.loft", &p).map_err(|e| e.to_string())?;
-        Ok::<_, String>(measure(&s, "Hull"))
-    };
-    let up = hull(json!("XZ"), 19.0).unwrap();
-    let down = hull(json!({"origin": [0, 0, 0], "x_dir": [1, 0, 0], "y_dir": [0, 0, 1]}), -19.0).unwrap();
-    assert!((up.area - down.area).abs() < 1e-6 * up.area, "area {} vs {}", down.area, up.area);
-    assert!((up.bbox.min.z + 19.0).abs() < 0.1 && (up.bbox.max.z - 20.0).abs() < 1e-6, "{:?}", up.bbox);
-    assert!(up.bbox.min.dist(down.bbox.min) < 1e-6 && up.bbox.max.dist(down.bbox.max) < 1e-6, "{:?} vs {:?}", down.bbox, up.bbox);
-}
-
 /// Hostile rails are refused with an error and leave the design as it was.
 #[test]
 fn hostile_rails_are_refused() {
@@ -174,8 +174,7 @@ fn sketch_of<'a>(
 fn sketch_curve(ss: &solidcraft_doc::SolvedSketch, id: &str) -> Option<Item> {
    use solidcraft_sketch::CurveKind;
    let sk = &ss.sketch;
-    let Some(index) = sk.curve_index(id) else { return sketch_wire(sk, id) };
-    let c = sk.curves.get(index)?;
+    let c = sk.curves.get(sk.curve_index(id)?)?;
    let at = |i: usize| sk.points.get(i).map(|p| ss.plane.to_world(p.pos));
    let normal = ss.plane.normal().unit()?;
    let (shape, pts) = match c.kind {
@@ -217,38 +216,6 @@ fn sketch_curve(ss: &solidcraft_doc::SolvedSketch, id: &str) -> Option<Item> {
    Some(Item { geo: Geo::Points(pts), dir, json, shape, slot: None })
 }

-/// A curve drawn in a 3D sketch, or a linked 3D curve (a wire, #14051), whose points are in world
-/// coordinates: a line measures as a line, an exact arc as its circle, and any other curve along
-/// its points. A single point is not a curve.
-fn sketch_wire(sk: &solidcraft_sketch::Sketch, id: &str) -> Option<Item> {
-    let w = sk.wires.get(sk.wire_index(id)?)?;
-    let mut json = json!({"type": "sketch_curve", "id": id});
-    if let Some(arc) = w.arc {
-        let axis = arc.normal.unit()?;
-        let (x, y) = ((arc.start - arc.center).normalized()?, axis.cross((arc.start - arc.center).normalized()?));
-        let mut angle = (arc.end - arc.center).dot(y).atan2((arc.end - arc.center).dot(x));
-        if angle <= 0.0 {
-            angle += std::f64::consts::TAU;
-        }
-        let shape = Shape::Round { center: arc.center, axis, radius: arc.radius, angle, planar: true, lo: 0.0, hi: 0.0 };
-        json["length_mm"] = json!(curve_len(&shape, true, 0.0));
-        add_round(&mut json, &shape);
-        let pts = arc_points(arc.center, axis, arc.start, angle);
-        return Some(Item { geo: Geo::Points(pts), dir: None, json, shape, slot: None });
-    }
-    match w.pts.as_slice() {
-        [] | [_] => None,
-        [a, b] => {
-            json["length_mm"] = json!(a.dist(*b));
-            Some(Item { geo: Geo::Points(densify(&[*a, *b])), dir: (*b - *a).normalized(), json, shape: Shape::Line { a: *a, b: *b }, slot: None })
-        }
-        pts => {
-            json["length_mm"] = json!(polyline_len(pts));
-            Some(Item { geo: Geo::Points(pts.to_vec()), dir: None, json, shape: Shape::Other, slot: None })
-        }
-    }
-}
-
 /// A profile (closed region of a sketch): its area, and when it is a circle or a slot, its
 /// sizes.
 fn profile(ss: &solidcraft_doc::SolvedSketch, index: usize) -> Option<Item> {
@@ -426,9 +393,7 @@ fn describe(s: &Session, st: &solidcraft_doc::ModelState, sel: &Sel) -> Option<I
            };
            plain(Geo::Tris(tris), None, json!({"type": "body", "name": name, "closed": closed, "volume_mm3": closed.then_some(v)}))
        }
-        Sel::SketchCurve { id, sketch } => {
-            sketch_curve(sketch_of(s, st, *sketch, |sk| sk.curve_index(id).is_some() || sk.wire_index(id).is_some())?, id)
-        }
+        Sel::SketchCurve { id, sketch } => sketch_curve(sketch_of(s, st, *sketch, |sk| sk.curve_index(id).is_some())?, id),
        Sel::ExternalSketchCurve { sketch, id } => sketch_curve(sketch_of(s, st, Some(*sketch), |_| true)?, id),
        Sel::SketchPoint { id } | Sel::ExternalSketchPoint { id, .. } => {
            let given = match sel {
@@ -23,7 +23,7 @@ pub static COMMANDS: &[CommandSpec] = &[
        .icon("import")
        .contract(&MESH_CONVERT_CONTRACT)
        .output(output_schema_for::<FeatureResult>)
-        .params("body?: mesh body name (default: the selected mesh body); tolerance?: length expression (default 0.05 mm): rebuild a closed mesh as an editable solid — a constant-section part as planar and cylindrical faces, any other closed mesh as the faceted solid its triangles describe — with a parametric timeline feature in the mesh body's owning component (the active component must be that component or an ancestor; otherwise activate the named component first); the active component is unchanged; name?"),
+        .params("body?: mesh body name (default: the selected mesh body); tolerance?: length expression (default 0.05 mm): reconstruct a closed constant-section mechanical mesh as editable planar and cylindrical faces, with a parametric timeline feature in the mesh body's owning component (the active component must be that component or an ancestor; otherwise activate the named component first); the active component is unchanged; name?"),
 ];

 /// The mesh body to convert: `body`, else the one selected body.
@@ -46,8 +46,6 @@ pub(crate) use features::profiles as feature_profiles;
 pub(crate) use features::{EdgeRefForm, PLANE_FORMS, axis_dir_form, axis_line_object, edge_ref_form, explicit_plane, plane_name_problem, sketch_key};
 pub use features::{auto_operation, extrude_reach, shown_scope};
 pub(crate) use features::{rail_fit_form, sweep_orientation};
-pub(crate) use features_more::{MAX_SKETCH_ID, SidePoint, SketchFrameId, axes_mask, side_point, sketch_frame_id};
-pub(crate) use file::mesh_crease_angle;
 pub use file::open_steps::OpenSteps;
 pub(crate) use inspect::color_param;
 pub use join_pieces::{Addition, addition};
@@ -24,14 +24,10 @@ use crate::schema::motion::{
 use crate::schema::motion_play::{
    DriveReport, ExportParams, PartPose, PlayParams, Pose, StudyExport, StudyExported, StudyPlayed, StudySample, UnmovedJoint,
 };
-use crate::schema::motion_trace::{EditTraceParams, KeepTraceParams, MotionTraceEdited, MotionTraceKept, MotionTraced, TraceParams, TraceRun};
 use crate::schema::{TypedContract, output_schema_for};
 use crate::{EngineError, Result, Session};

 const FIND_LIMITS_CONTRACT: TypedContract<FindLimitsParams> = TypedContract::new();
-const TRACE_CONTRACT: TypedContract<TraceParams> = TypedContract::new();
-const KEEP_TRACE_CONTRACT: TypedContract<KeepTraceParams> = TypedContract::new();
-const EDIT_TRACE_CONTRACT: TypedContract<EditTraceParams> = TypedContract::new();

 #[path = "motion_analysis.rs"]
 mod analysis;
@@ -148,35 +144,21 @@ pub static COMMANDS: &[CommandSpec] = &[
         path, format, frames, width, height, fps (GIF), bytes, renderer, stopped_at, stopped_by_loop, stopped_by_contact (the \
         design is not changed, nor its placements)",
    ),
-    CommandSpec::new("motion.trace", "Motion Trace", crate::checked!("motion.trace", trace))
-        .at("SOLID", "ASSEMBLE")
-        .icon("trace")
-        .noundo()
-        .contract(&TRACE_CONTRACT)
-        .output(output_schema_for::<MotionTraced>)
-        .params(concat!(
-            trace_doc!(),
-            " → points: [[x,y,z]…] world positions, samples (taken), stopped_at (the sample where the motion stopped short; the trace \
+    CommandSpec::new("motion.trace", "Motion Trace", trace).at("SOLID", "ASSEMBLE").icon("trace").noundo().params(concat!(
+        trace_doc!(),
+        " → points: [[x,y,z]…] world positions, samples (taken), stopped_at (the sample where the motion stopped short; the trace \
         ends there), stopped_by_loop, stopped_by_contact (the design is not changed)"
-        )),
-    CommandSpec::new("motion.trace.keep", "Keep Motion Trace", crate::checked!("motion.trace.keep", keep_trace))
-        .icon("trace")
-        .contract(&KEEP_TRACE_CONTRACT)
-        .output(output_schema_for::<MotionTraceKept>)
-        .params(concat!(
-            trace_doc!(),
-            "; name? (default Motion TraceN); auto_update?: bool (default true); point_ref?: joint origin snap - keeps the trace as a \
+    )),
+    CommandSpec::new("motion.trace.keep", "Keep Motion Trace", keep_trace).icon("trace").params(concat!(
+        trace_doc!(),
+        "; name? (default Motion TraceN); auto_update?: bool (default true); point_ref?: joint origin snap - keeps the trace as a \
         root 3D sketch spline. Associative curves follow mechanism and driving-input edits; false keeps a fixed curve. \
         point_ref retains a geometry snap; otherwise point is retained in component coordinates → sketch, name, curves, points"
-        )),
-    CommandSpec::new("motion.trace.edit", "Edit Motion Trace", crate::checked!("motion.trace.edit", associative::edit))
-        .icon("trace")
-        .contract(&EDIT_TRACE_CONTRACT)
-        .output(output_schema_for::<MotionTraceEdited>)
-        .params(
-            "sketch: id|name; joint? with from and to, or study?; index?; samples? (2…500); auto_update?: false to detach. \
+    )),
+    CommandSpec::new("motion.trace.edit", "Edit Motion Trace", associative::edit).icon("trace").params(
+        "sketch: id|name; joint? with from and to, or study?; index?; samples? (2…500); auto_update?: false to detach. \
         Edits a saved associative trace's driving conditions in one undo step",
-        ),
+    ),
    CommandSpec::new("motion.plot", "Plot Motion Study", crate::checked!("motion.plot", analysis::plot))
        .contract(&TypedContract::<crate::schema::motion_analysis::PlotParams>::new())
        .output(output_schema_for::<crate::schema::motion_analysis::MotionPlot>)
@@ -931,7 +913,7 @@ fn export(s: &mut Session, p: &Value) -> Result<Value> {
                    c += &format!(
                        "{},{},{},{},{},{},{},{},{},{},{},{},{},{}\n",
                        Value::from(r.step),
-                        solidcraft_doc::csv::field(&at.occurrence),
+                        at.occurrence.replace(',', " "),
                        o[0],
                        o[1],
                        o[2],
@@ -1006,7 +988,7 @@ fn path_world(t: &Session, path: &[u64], cmd: &str) -> Result<Mat> {
 /// positions, sampled on a copy (the design is not changed). Each sample is driven from the one
 /// before, so closed loops follow on their branch and contact sets stop them; the trace ends at
 /// the sample where the motion stops short. Returns the points and the answer without them.
-fn sample_trace(s: &Session, p: &Value, cmd: &str) -> Result<(Vec<Vec3>, TraceRun)> {
+fn sample_trace(s: &Session, p: &Value, cmd: &str) -> Result<(Vec<Vec3>, Value)> {
    let (path, local) = traced_point(s, p, cmd)?;
    let mut t = s.scratch();
    // Traced from where the parts are placed: moves only shown (an exploded view, a move not
@@ -1016,21 +998,19 @@ fn sample_trace(s: &Session, p: &Value, cmd: &str) -> Result<(Vec<Vec3>, TraceRu
    let (default, given, plan) = motion_plan(s, p, cmd)?;
    let n = sample_count(p, default.min(MAX_TRACE), MAX_TRACE, cmd)?;
    let mut points = Vec::new();
-    let mut stop = (None, Value::Null, Value::Null);
+    let mut stop = (Value::Null, Value::Null, Value::Null);
    for k in 0..n {
        let want = plan(&t, k, n);
        let (r, _) = drive_with_contact(&mut t, &want, &given)?;
        points.push(solidcraft_doc::apply_point(&world(&t)?, local));
        if r["stopped_by_loop"].is_object() || r["stopped_by_contact"].is_object() {
-            stop = (Some(k), r["stopped_by_loop"].clone(), r["stopped_by_contact"].clone());
+            stop = (json!(k), r["stopped_by_loop"].clone(), r["stopped_by_contact"].clone());
            break;
        }
    }
    let name = s.doc.occurrences.iter().find(|o| Some(&o.id) == path.last()).map_or_else(|| "root".to_string(), |o| o.name.clone());
-    let stopped_by_loop = serde_json::from_value(stop.1).map_err(|e| bad(cmd, e.to_string()))?;
-    let stopped_by_contact = serde_json::from_value(stop.2).map_err(|e| bad(cmd, e.to_string()))?;
-    let run = TraceRun { occurrence: name, samples: points.len(), stopped_at: stop.0, stopped_by_loop, stopped_by_contact };
-    Ok((points, run))
+    let out = json!({"occurrence": name, "samples": points.len(), "stopped_at": stop.0, "stopped_by_loop": stop.1, "stopped_by_contact": stop.2});
+    Ok((points, out))
 }

 /// `samples`, 2…`max`, or `default` without it.
@@ -1091,9 +1071,9 @@ fn motion_plan(s: &Session, p: &Value, cmd: &str) -> Result<(usize, BTreeSet<(u6
 }

 fn trace(s: &mut Session, p: &Value) -> Result<Value> {
-    let (points, run) = sample_trace(s, p, "motion.trace")?;
-    let points = points.iter().map(|v| [v.x, v.y, v.z]).collect();
-    typed_reply("motion.trace", MotionTraced { run, points, param_warnings: Vec::new() })
+    let (points, mut out) = sample_trace(s, p, "motion.trace")?;
+    out["points"] = points.iter().map(|v| json!([v.x, v.y, v.z])).collect();
+    Ok(out)
 }

 /// The trace as a 3D sketch spline, in one undo step: a new sketch of the root component (the
@@ -1101,12 +1081,12 @@ fn trace(s: &mut Session, p: &Value) -> Result<Value> {
 fn keep_trace(s: &mut Session, p: &Value) -> Result<Value> {
    let cmd = "motion.trace.keep";
    let source = if bool_(p, "auto_update") != Some(false) { Some(associative::source(s, p, cmd)?) } else { None };
-    let (mut points, run) = sample_trace(s, p, cmd)?;
+    let (mut points, out) = sample_trace(s, p, cmd)?;
    finish_trace(&mut points);
    if points.len() < 2 {
        return Err(bad(cmd, "the point does not move: there is no trace to keep"));
    }
-    keep_sampled_trace(s, p, cmd, points, run, source)
+    keep_sampled_trace(s, p, cmd, points, out, source)
 }

 fn finish_trace(points: &mut Vec<Vec3>) {
@@ -1131,7 +1111,7 @@ fn keep_sampled_trace(
    p: &Value,
    cmd: &str,
    points: Vec<Vec3>,
-    run: TraceRun,
+    mut out: Value,
    source: Option<solidcraft_doc::motion::MotionTrace>,
 ) -> Result<Value> {
    let name = match str_(p, "name").map(str::trim).filter(|n| !n.is_empty()) {
@@ -1153,17 +1133,24 @@ fn keep_sampled_trace(
    (s.active_sketch, s.active_component, s.active_occurrence_path) = before;
    s.revision += 1;
    let (made, spline) = made?;
-    let sketch = made.get("sketch").and_then(Value::as_u64).ok_or_else(|| bad(cmd, "trace sketch is missing"))?;
-    let name = made.get("name").and_then(Value::as_str).unwrap_or_default().to_string();
-    let curves: Vec<String> =
-        spline.get("curves").and_then(Value::as_array).map(|c| c.iter().filter_map(Value::as_str).map(str::to_string).collect()).unwrap_or_default();
+    let sketch = made.get("sketch").cloned().unwrap_or(Value::Null);
+    out["sketch"] = sketch.clone();
+    out["name"] = made.get("name").cloned().unwrap_or(Value::Null);
+    out["curves"] = spline.get("curves").cloned().unwrap_or(Value::Null);
+    out["points"] = json!(points.len());
    if let Some(mut source) = source {
-        source.sketch = sketch;
-        source.wire = curves.first().cloned().ok_or_else(|| bad(cmd, "trace curve is missing"))?;
+        source.sketch = sketch.as_u64().ok_or_else(|| bad(cmd, "trace sketch is missing"))?;
+        source.wire = spline
+            .get("curves")
+            .and_then(Value::as_array)
+            .and_then(|v| v.first())
+            .and_then(Value::as_str)
+            .ok_or_else(|| bad(cmd, "trace curve is missing"))?
+            .to_string();
        associative::remember(s, &source);
        s.doc_mut().assembly.traces.push(source);
    }
-    typed_reply(cmd, MotionTraceKept { run, sketch, name, curves, points: points.len(), param_warnings: Vec::new() })
+    Ok(out)
 }

 fn list_studies(s: &mut Session, _p: &Value) -> Result<Value> {
@@ -12,8 +12,8 @@ use solidcraft_doc::Mat;
 use super::{Plan, drive_with_contact, explode_moves, exploded_at, motion_plan, sample_count, view_index};
 use crate::capture::{self, Renderer};
 use crate::params::{bad, str_};
+use crate::render::Camera;
 use crate::{Result, Session};
-use solidcraft_viewport::Camera;

 /// What the frames show.
 enum Motion {
@@ -101,7 +101,7 @@ pub(super) fn export_with(s: &Session, p: &Value, renderer: Option<&Renderer>) -
            let assembled = crate::view::bounds(&t)?;
            t.pending_moves = exploded_at(moves, 1.0);
            let mut c = crate::view::home_camera(&t)?;
-            c.fit(&solidcraft_render::view_bounds(&assembled.union(&crate::view::bounds(&t)?)));
+            c.fit(&assembled.union(&crate::view::bounds(&t)?));
            Ok(c)
        }
        Motion::Drive(..) => crate::view::home_camera(s),
@@ -150,7 +150,7 @@ pub(super) fn export_with(s: &Session, p: &Value, renderer: Option<&Renderer>) -
        if gif {
            frames.push(picture.rgba);
        } else {
-            let png = solidcraft_viewport::png(width as usize, height as usize, picture.rgba).ok_or_else(|| bad(cmd, "PNG encoding failed"))?;
+            let png = crate::render::png(width as usize, height as usize, picture.rgba).ok_or_else(|| bad(cmd, "PNG encoding failed"))?;
            let file = frame_path(k + 1);
            solidcraft_io::vfs::write(&file, &png).map_err(|e| bad(cmd, format!("{file}: {e}")))?;
            bytes += png.len();
--- a/Show More
+++ b/Show More