bherbrucksolidcore
A B-rep solid modeling kernel in safe, deterministic, wasm-compatible Rust: a Rust port of NVIDIA's SMLib (from USD BRep, Apache-2.0). Not affiliated with or endorsed by NVIDIA.
Status: 1.0.1. The version tracks the upstream release it is ported from and tested against, usd-brep v1.0.1. Everything SMLib's own test suites exercise is ported:
- primitives, booleans, fillets and chamfers, offsets and shells, sweeps, healing, and mass properties, plus most of the public SM_API (a few large entry points, such as polygon-mesh booleans, tessellation, point-cloud surface fitting and fillet removal, are not ported yet);
- a unit is green only after differential testing against the C++ original confirms identical topology and values within 1e-9 relative, with any per-key absolute floors documented in its report.
The public API mirrors SMLib's.
Versioning
1.0.1 matches SMLib 1.0.1. Later releases keep their own semver and name the SMLib
release they match in build metadata, for example 1.1.0+smlib.1.0.1:
- Minor (
1.1.0,1.2.0): new opt-in fixes for upstream defects, as fields ofKernel::fixes(UpstreamFixes, all off by default). Without them the default path still matches the named SMLib release bit for bit. - Patch (
1.1.1): a fix where the port did not match SMLib. - Major: a breaking API change.
- A new SMLib release moves the
+smlib.…metadata, with a minor or major bump.
Current unit results, blockers and primitive checks: https://tangency-labs.github.io/solidcore/.
Progress, design and how to contribute: https://github.com/tangency-labs/solidcore
(see plan/units/, plan/PROGRESS.md and AGENTS.md).
Licensed under Apache-2.0; see LICENSE, NOTICE and ATTRIBUTION.md.