demo.git - Vide-coded 64k demo system

Age	Commit message (Collapse)	Author
25 hours	fix(cnn_v3): shadow pass — 5 bugs fixed, labels in gbuf_view	skal
	1. Camera Y-inversion: proj.m[5] = -proj.m[5] in upload_scene_data + WGPUFrontFace_CCW on raster pipeline. 2. Shadow formula: replace shadowWithStoredDistance with 64-step IQ soft shadow (8d/t, unbounded). 3. Local→world SDF scale: d = length(obj.model[0].xyz). 4. Shadow bias: use rasterized normal from normal_mat_tex (binding 4) instead of light direction — fixes terminator self-shadow on spheres. 5. ShaderComposer: GBufViewEffect now resolves #include via ShaderComposer::Get().Compose(). Also: per-tile channel labels in gbuf_view.wgsl via debug_str. Scene simplified to 1 cube + 1 sphere for debugging (restore TODO). Scale propagation for pulsating sphere confirmed correct end-to-end. handoff(Gemini): shadow validated. Next: restore full scene in GBufferEffect::set_scene() (20 cubes + 4 spheres, 2 lights), then run training pass per cnn_v3/docs/HOWTO.md §3.
32 hours	feat(cnn_v3): add G-buffer visualizer + web sample loader (Phase 7)	skal
	C++ GBufViewEffect: renders all 20 feature channels from feat_tex0/feat_tex1 in a 4×5 tiled grid. Custom BGL with WGPUTextureSampleType_Uint; bind group rebuilt per frame via wgpuRenderPipelineGetBindGroupLayout. Web tool: "Load sample directory" button — webkitdirectory picker, FULL_PACK_SHADER compute (matches gbuf_pack.wgsl packing), runFromFeat() skips photo-pack step, computePSNR() readback + comparison vs target.png side-by-side. 36/36 tests pass. Docs updated: HOWTO.md §9, README, PROJECT_CONTEXT, TODO, COMPLETED. handoff(Gemini): CNN v3 Phase 7 done. Next: run train_cnn_v3.py (see HOWTO §3).