Syoyo Fujita a040827363 Add Emscripten WASM build and three.js web demo ...

web/ compiles the v3 C runtime with emcc (Emscripten SDK from
~/work/emsdk by default) and ships a simple browser demo that loads
glTF/GLB files via drag & drop and renders them with three.js:

- loader.c: C bridge exporting flattened primitives, materials,
  textures (bufferView + data-URI paths) and the scene graph to JS
- main.js/index.html/style.css: three.js viewer (OrbitControls,
  PBR materials, textures, node hierarchy, primitive modes)
- gen_sample.py: generates a small self-contained textured Cube.glb
  sample from tracked assets (no large binaries committed)
- Makefile: emcc build (MODULARIZE + ES6, no filesystem), sample
  generation and local http server targets

Verified end-to-end: native bridge tests, Node harness exercising the
WASM exports (parse, geometry, images, clear) and HTTP serving.

2026-07-31 21:42:31 +09:00

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