@sunbox/occt-import-js 0.0.28

@sunbox/occt-import-js 0.0.28

This release makes the packaged OCCT runtime directly usable by browser workers and improves STEP, IGES, and BREP import throughput.

Changes

• Release WASM is compiled with -O3 instead of size-first -Oz. On the repository STEP benchmark, median import time fell from 1674 ms in 0.0.25 to 975 ms in 0.0.28, a 41.7% improvement.
• dist/occt-import-js-worker.js now loads the generated ESM module correctly, caches the module, WASM bytes, and OCCT instance, preserves cache-busting query parameters, and retries resources after initialization errors.
• The worker accepts { format, buffer, params } and posts the native import result. Consumers can transfer the input buffer without an additional copy.
• The distribution now marks its generated JavaScript as ESM, so the package entrypoint can be imported directly from Node.js. CommonJS require() consumers must move to import.
• Unix and Windows release builds now generate the same worker and ESM package metadata.
• The shipped Node.js and browser examples now execute the ESM entrypoint and provide WASM bytes explicitly where Node.js requires them.

Compatibility

The generated runtime is ESM. Browser consumers should use a module import or the packaged worker; classic-script globals and importScripts are no longer part of the supported contract.

occt-import-js 0.0.27

Release 0.0.27 publishes the accumulated package, example, build, and CI updates since the last GitHub release.

Highlights

• Adds browser-focused STEP viewer examples, including ESP12 and FT601Q viewers with reusable static server helpers.
• Ships ES module/WebAssembly package support and typed-array memory handling improvements for browser consumers.
• Updates package metadata for the @SunboX scope and routes publishing to GitHub Packages.
• Adds automated release workflows for rebuilding dist output, publishing the GitHub package, and uploading dist, native, and header assets.
• Hardens Windows and macOS native build CI with Ninja response files, Winsock linkage, NOMINMAX, constrained Windows parallelism, and current runner images.
• Excludes the full OCCT submodule from npm package contents while retaining the packaged runtime, examples, tests, headers, and build scripts.
• Adds repository agent instructions and bumps package metadata to 0.0.27.

Release process

• Fetched origin and upstream, fast-forwarded local main to origin/main, and found no real local or remote branches remaining unmerged into main.
• Public npm did not contain @sunbox/occt-import-js@0.0.27; GitHub Packages metadata requires authenticated package access.
• Target commit: 99b71a7.
• Tag: 0.0.27.

Validation

• npm test: 43 passing.
• No check:format script is defined in package.json.
• npm publish --dry-run --cache /private/tmp/sunbox-occt-import-js-npm-cache: succeeded for @sunbox/occt-import-js@0.0.27, 138 files, 5.4 MB package size, 17.3 MB unpacked size.
• npm view @sunbox/occt-import-js@0.0.27 version: npmjs reported no matching version before release.

occt-import-js 0.0.26

Changes

• Add FT601Q STEP viewer example and bundled FT601Q model.
• Share the example static server between ESP12 and FT601Q viewers.
• Bump @sunbox/occt-import-js package version to 0.0.26.

Release workflows will build and attach dist/native artifacts and publish the package to GitHub Packages.

occt-import-js 0.0.25

Highlights

• Adds faster binary import by copying input bytes through a typed-array memory view instead of per-element embind conversion.
• Emits typed geometry arrays for imported meshes: Float32Array for positions and normals, and Uint32Array for indices.
• Adds mesh metadata (vertex_count, triangle_count, and bounds) so consumers can avoid recalculating common statistics in JavaScript.
• Adds compact BREP face color runs through brep_face_runs, plus brep_face_count and colored_brep_face_count metadata.
• Adds an includeBrepFaces import option. Set it to false to skip full per-face export while retaining compact face-run data.
• Improves XCAF/STEP face color handling by collecting presentation style settings, including surface, material, and curve colors.

ESP_12 Viewer

• Updates the ESP_12 example viewer to consume the module build directly.
• Uses compact face runs and shared materials for colored face rendering.
• Disables edge rendering by default and switches to on-demand rendering to reduce work after model load.
• Uses importer-provided bounds and count metadata to avoid expensive scene traversal and statistics recalculation.
• Keeps the local example server covered with tests for the viewer route, wasm MIME type, bundled STEP model, and optimized rendering setup.

Release And Packaging

• Bumps the package version to 0.0.25.
• Removes generated dist/ files from git tracking and ignores dist/ in the repository.
• Adds .npmignore so npm packages still include rebuilt dist/ files even though the repository ignores them.
• Adds npm run rebuild:dist plus cross-platform wrapper scripts for rebuilding distribution files.
• Adds a GitHub Actions workflow to rebuild and upload dist artifacts from main.
• Updates the tag-triggered npm publish workflow to check out submodules, install with npm ci, rebuild dist, and publish the rebuilt package.

Tests

• Adds coverage for typed geometry arrays, mesh bounds/count metadata, compact BREP face runs, optional full BREP face export, ESP_12 face presentation colors, viewer optimizations, and the dist rebuild wrapper.
• Verified locally with:
  • npm run rebuild:dist (31 passing tests plus rebuilt distribution)
  • npm run test:esp12-server (5 passing tests)
  • npm pack --dry-run --json (confirmed JS, wasm, worker, and license files are included in the 0.0.25 package)