* Viewport: palette-indexed scene and incremental appearance updates
- Move triangle, line and instance colours and opacity into a per-scene
palette (an R32Uint texture, WebGL2-safe); appearance edits update
palette entries instead of vertex bytes.
- Build CPU body triangles as one canonical vertex stream per block with
opaque/glass/faded index lists; an opacity class change rewrites only
the index list.
- Cache resolved body appearances by a per-body key, so an edit resolves
only the bodies whose look changed.
- Split the model scene key from the session revision: selection and
view-only commands no longer rebuild or upload the model scene.
- Replace the O(n^2) section-index lookup and per-placement instance scan
with hash lookups.
Co-Authored-By: Claude Code <noreply@anthropic.com>
* Viewport: skip unchanged palette work when rebuilding
- Reuse each body's appearance key while the document is unchanged.
- Leave a palette slot alone when its value did not change, and allocate
every body's slots once before the build loop.
Co-Authored-By: Claude Code <noreply@anthropic.com>
* Viewport: measure scene rebuild cost by edit kind
An ignored scale test times the scene build after selection, appearance,
theme and one-body geometry edits at 200, 1,000 and 5,000 bodies.
Co-Authored-By: Claude Code <noreply@anthropic.com>
* Viewport: read faded grid alphas through the scene palette
The grid-fade tests now resolve line palette indices instead of reading the
line record's old colour byte.
Co-Authored-By: Claude Code <noreply@anthropic.com>
* Viewport: measure rebuild cost on few large meshes
Adds the 20/100-torus case where a block rebuild used to re-emit a large
part of the model.
Co-Authored-By: Claude Code <noreply@anthropic.com>
* Viewport: measure rebuild cost on an assembly
Unique detailed parts plus one component placed many times, timed for
selection, part and component colour, opacity, theme, hide and move.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Viewport: draw block classes as vertex runs, not index lists
A body's vertices are three per triangle in mesh order, so each draw class
is a few runs of the block's vertex buffer: all-opaque blocks need no index
buffer, and an opacity class change uploads nothing. A fragmented class
(more than 64 runs) falls back to one index buffer.
Each triangle is written as one record into a block reserved up front,
which takes the cold scene build of a 7.1M-triangle assembly from 97 ms
to 55 ms (main: 83 ms).
Also fix reindexing a block whose bodies are drawn elsewhere: it walked
the mesh's triangles from that body's start, past its own vertices.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Viewport: draw the highlight's own block, and light faded bodies without copies
The highlight scene keeps its feedback (a hovered face, a body copied on
the CPU) in a block of its own; since blocks became vertex runs, only the
model's blocks were drawn, so that feedback was uploaded and never shown.
Draw the highlight's blocks with its triangles.
Whole faded and see-through bodies (another component active, or an
appearance below full opacity) were lit by copying every triangle on the
CPU at each hover change: 85 ms for a design row of 812 bodies. They are
now drawn again from the model's own block vertices, in the highlight
palette with their slots set to the highlight colour, or as placements of
the model's shared triangles. The picture is the same as the copy's.
Adds a GPU frame benchmark for document-tree hover (ignored test).
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Viewport: count scene uploads, and keep the sorted glass stream across colour edits
Renderer::uploads reports the bytes the model scene's last change uploaded
(geometry, placements, palette rows, planned colours, re-evaluated vertices).
Without order-independent transparency the global glass stream is kept while
the blocks' see-through triangles are the same, so a colour edit on a glass
body uploads palette rows only. Tests assert both on a GPU.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Viewport: keep palette slots and looks without rehashing every body
A rebuild found every body's palette slots by name and wrote them back,
allocating and hashing a new key per body, and copied every shown name into a
set to check the arena still belongs to the design. Slots are written back only
when a body's faces grew, and the looks cache is pruned only when it holds more
bodies than are shown. Adds the STEP-file benchmark (SOLIDCRAFT_SCALE_STEP) and
the colour command's own time to the assembly benchmark.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Viewport: round-pick construction lines through the scene palette
The axis and centre feedback for round picks (#4610) drew with a raw colour;
on the palette scene it is interned once like the other construction geometry.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Viewport: draw faded and see-through bodies from their plans with OIT
A body faded outside the active component, or see-through, left the GPU
tessellation path and was built triangle by triangle on the CPU, so working in
a component of a large assembly rebuilt every other body. Where the renderer
blends see-through surfaces order-independently (GpuTarget::oit, set by the
renderer), a body whose faces share one class is drawn from its plan: chunks
are split by class, opaque passes, AO and the section draw only opaque chunks,
and the OIT pass draws the rest. The sorted fallback keeps them on the CPU.
The model and its highlights decide through one rule (model_plan_class).
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Code <noreply@anthropic.com>
* claim: #4167
* Viewport: ambient occlusion no longer shows ghost copies of the model (#4167)
The AO shader used the same 32 sample offsets at every pixel, and nothing smoothed the
result. On a flat face, each sample darkened its own shifted copy of a nearby part's outline.
Where the radius is large on screen (a big design seen close up), those copies show as faint
separate ghosts of the part. Where it is small, they pack into stepped bands along contacts
(#3407).
The sample pattern is now turned by a different angle at each pixel, using interleaved
gradient noise of the pixel position (Jimenez 2014). The copies break up into an even fine
grain, which 2x supersampling smooths further. The cost is per pixel only (one noise value,
one sine and one cosine). The 32-sample loop, the depth prepass and AO off are unchanged.
Test: ambient_occlusion_draws_no_copies_of_a_part (viewport.rs) renders a block on a plate
from above with AO off and on. AO must still darken beside the block, the plate must stay
clear beyond the radius, and the profile beside the block's straight side must have no
copy-sized steps (0.0144 before, 0.0026 after; limit 0.005). The test-only offscreen helper
gains an AO radius, like render_offscreen_ssaa.
Fixes#4167
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
* Viewport: lift selected and hovered edge highlights toward the eye
A selected edge's highlight (3 px core, 6 px halo) is a screen-space band that
was depth-tested at the edge's own depth. A face next to the edge seen at a
grazing angle is pushed back by only about a pixel of its slope, so it buried
part of the band, unevenly along the edge: the highlight showed as a thin
wedge instead of a line.
The band is now drawn like a thin cylinder around the edge: its depth is
pulled toward the eye by half its width plus a pixel, measured on screen so
it holds at every zoom. Plain model edges keep their depth (#1434 still
holds); the part of a highlighted edge the model really hides stays dimmed
through hidden_line.
Not yet compiled or tested.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Viewport: lift an edge highlight by how steeply its faces are seen
The first lift (half the band's width plus a pixel, the same on every edge)
was not tied to the faces beside the edge. Each highlight segment now carries
the normals of the two faces it borders (octahedral, packed with its width in
the line's width slot, read as u32 by vs_line): the band is pulled toward the
eye by its half width times how steeply those faces are seen, so a grazing
face no longer buries it, and an edge seen square to its faces is not lifted
at all.
Test: a_selected_edge_on_a_grazing_face_draws_whole (tilts 60 to 88 degrees,
small and large designs, orthographic and perspective; the band 5 mm behind
a face stays hidden). Capturer::rgba_highlighted draws a highlight scene as
the viewport does, for that test.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Hovering or selecting whole bodies -- a browser row, a History group, a body
under the pointer in body-pick mode -- built a CPU copy of every body's
triangles into the highlight scene. On a 40-body 4.3 MB STEP assembly that was
147 bodies, 70 MB of triangle copies and a 519 ms frame.
The model already has the same geometry on the GPU. The highlight now names it
and the renderer draws it again in the highlight colour:
- bodies drawn from a display plan: the model's evaluated plan chunks, with a
hover/selection tint uniform (the chunks stay resident in the model scene);
- bodies drawn as placements of shared triangles: the same placements of the
model's shared triangles, coloured per instance;
- bodies the model builds on the CPU: their vertex range in the model scene's
block.
See-through and faded bodies keep the CPU feedback, which colours them; faces
and edges highlighted on their own are unchanged. The highlight looks the same
(verified side by side).
On the assembly the highlight build drops from 519 ms to 9 ms and no longer
copies any triangles; selecting the whole assembly takes 9-20 ms.
Co-authored-by: Claude Code <noreply@anthropic.com>
* claim: #4563
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Section Analysis: a Hatch option, off for a plain cut in the body's colour (#4563)
The Section Analysis dialog gets a Hatch check box beside Flip, and
inspect.section a hatch?: bool (default true), so scripts, the CLI and the
control channel reach it too. Hatched, a cut is its body's colour tinted
toward the cap colour with 45 degree stripes, as before; off, it is the
body's own solid colour. The viewport (cap alpha in the uniform), the CPU
rasterizer and ui.render follow it, and the section keeps it when hidden
and shown again or edited.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
* Viewport: levels of detail for large meshes (#4724)
A large instanced mesh (20 k triangles or more) gets coarser copies, made
once on a worker (`mesh_lod`): a quarter, a sixteenth and a sixty-fourth of
its triangles, by quadric edge collapse (`geom::simplify`, after Garland and
Heckbert 1997; no fold-overs, no sheets joined, open boundaries kept), each
with its measured deviation from the full mesh. Each frame, as placements
are culled, each is drawn from the coarsest copy whose deviation stays
under 0.75 px where it stands (`placement_scale`, `level_for`). Until the
copies are made the mesh is drawn in full; the scene is built again when
they are. Display only: picking, measuring and exports keep the reference
mesh. Outside the kernel.
25 placements of a 2 M-triangle STL, 3600 x 2190 px, 4x MSAA, M2 Max
(`instanced_scene_gpu_benchmark`): 20.2 -> 1.2 ms a frame with all in
view, 21.9 -> 2.9 ms close up. The copies take 10 s to make, on a worker.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Viewport: see-through and faded parts drawn as instances (#4888)
See-through (an appearance's opacity) and faded (context around an active
component) bodies in one colour are drawn as instances like opaque ones,
their alpha in each placement's colour: one copy of the triangles, levels
of detail and culling, no per-placement copies built on the window thread.
Their placements are ordered back to front each frame (not their
triangles one by one) for devices that sort see-through surfaces.
The GPU benchmark gains `SOLIDCRAFT_BENCH_OPACITY` and the CPU share of
each frame, and its pictures each placement's own triangles too.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Viewport: order-independent transparency for see-through surfaces (#4734)
The model's see-through surfaces (glass, faded context; instanced or not)
were sorted back to front triangle by triangle on the window thread
whenever the view turned. They are now drawn with weighted blended order-
independent transparency (McGuire and Bavoil 2013): when there are any,
the frame is drawn into the renderer's own textures (as supersampling
does), the see-through surfaces gathered into a weighted colour and a
revealage target against the frame's depth, laid over the frame in one
full-screen pass, then the overlays drawn over them. Nothing is sorted.
A device that cannot blend into float targets keeps the sorted way.
25 placements of a 2 M-triangle STL at opacity 0.5, M2 Max, 3600 x 2190 px:
about 10 s a frame sorted, 21.6 ms (17.2 ms instanced, 2.8 ms with levels
of detail).
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* claim: #4616
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Viewport: draw a part placed many times from one copy of its triangles (#4616)
A part placed by many occurrences was drawn, framed and picked from a moved
copy of its mesh per placement: on the CPU (the moved mesh and its scene
bytes) and on the GPU (its vertices uploaded once per placement).
- The model scene draws bodies that share a mesh as GPU instances: the
shared triangles once, a rigid move and colour per placement
(`InstancedMesh`, `vs_tri_inst`), in the solid, section and AO passes.
`GpuScene::merged` expands them, so scene tests see world triangles.
- `ModelBody::mesh_in_place`, `plan_mesh_in_place_at`, `mesh_bounds` and
`display_identity` give the shared mesh, its placement, the exact box and
an identity without making the moved copy.
- Display refinement's body ids, Fit/Home bounds, the viewport's body boxes,
the background mesher and picking use them (picking moves the ray into
the part's frame and shares one pick index).
25 placements of a 2 M-triangle STL on an M2 Max: orbit 45 -> 37 ms a
frame, footprint 41 -> 16 GB, 24 copies 39 -> 18 s.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Viewport: draw large meshes from shared, indexed vertices (#4637)
An instanced mesh's vertices are shared between its triangles and drawn
indexed (`SharedTris`). A flat-faceted mesh (an STL's facets) shares them by
position alone and lights each fragment with its triangle's own plane
(`vs_tri_inst_flat`, `fs_*_flat`), taken from the fragment's position
relative to the eye so it stays exact at any zoom; its vertex outputs are
kept few, since a tiled GPU stores every vertex's outputs. A body alone is
drawn this way from 50 k triangles. A mesh too large for one buffer falls
back to unshared vertices.
`instanced_scene_gpu_benchmark` (manual, ignored): 25 placements of a 2 M-
triangle STL at 3600 x 2190 px, 4x MSAA, M2 Max: 21.3 ms a frame for the
placements' own triangles, 16.1 ms shared and indexed.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Viewport: leave out placements of an instanced mesh that are out of view (#4646)
Each frame `Batches::cull` keeps the placements whose box may be seen
(`placed_box_in_view`: all eight corners past one side of the view in clip
space, so it holds behind the eye too) and writes them again only when
that set changes. The manual benchmark gains `SOLIDCRAFT_BENCH_CLOSE=1`:
close up on the middle of 25 placements of a 2 M-triangle STL (13 in
view), 3600 x 2190 px, 4x MSAA, M2 Max: 28.2 ms a frame for the
placements' own triangles, 17.2 ms instanced and culled.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* claim: #2823
* fix(view): lines thinner than a pixel no longer vanish without multisampling (#2823)
A line quad narrower than a pixel covers no pixel centre when it falls between
two rows, so the grid's 0.7 px lines came and went as the view zoomed where the
viewport draws without 4x MSAA (some browsers and devices). Such lines are now
drawn a pixel wide, faded by the width they lack.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Reword comments, docs and package descriptions so they describe SolidCraft's own behaviour instead of comparing it to another product. The trademark notice, the commercial-CAD rule and the navigation preset name stay as they were.
Co-authored-by: Claude Sonnet 5.5 <noreply@anthropic.com>
Section Analysis clipped the origin and construction planes and axes along with the model. They now draw from their own unclipped lists, with the same depth and blending; bodies, edges, sketches and highlights are clipped as before. Fixes#1229.
Co-authored-by: DuBearte <DuBearte@users.noreply.github.com>
Colour vision modes (Protan, Deutan, Tritan) in Preferences > Graphics, with palettes, shader and icon colours adapted per mode, translations and tests.
Jackson Oursland