demo.git - Vide-coded 64k demo system

Age	Commit message (Collapse)	Author
23 hours	feat(cnn_v3): shadow→dif migration complete (ch18)	skal
	Replace raw shadow (ch18) with dif = max(0,dot(normal,KEY_LIGHT))*shadow across all layers. Channel count stays 20, weight shapes unchanged. - gbuf_pack.wgsl: t1.z = pack4x8unorm(mip2.g, mip2.b, dif, transp); t1.w = 0u - gbuf_deferred.wgsl: read dif from unpack4x8unorm(t1.z).z - gbuf_view.wgsl: revert to 4×5 grid, ch18=dif label, ch19=trns label - tools/shaders.js: FULL_PACK_SHADER adds oct_decode + computes dif - cnn_v3_utils.py: assemble_features() computes dif on-the-fly via oct_decode - docs: CNN_V3.md, HOWTO.md, HOW_TO_CNN.md, GBUF_DIF_MIGRATION.md updated handoff(Gemini): shadow→dif migration done, ready for first training pass
24 hours	wip(cnn_v3): shadow→dif intermediate + scene tweaks + migration plan	skal
	- gbuf_shadow.wgsl: normal bias 0.05→0.02 - gbuf_pack.wgsl: compute dif=diffuse*shadow, drop shadow from t1.z, store dif in t1.w (INTERMEDIATE — incorrect packing, see migration plan) - gbuf_deferred.wgsl: read dif from t1.w.x (matches intermediate packing) - gbuf_view.wgsl: expand to 4×6 grid, show dif.r/g/b in row 5 (INTERMEDIATE — to be reverted to 4×5 with ch18=dif) - gbuffer_effect.cc: add small hovering sphere (r=0.6) above scene; swap cube/sphere positions; both spheres pulsate - docs/GBUF_DIF_MIGRATION.md: full migration plan with checklist handoff(Claude): intermediate commit — GBUF_DIF_MIGRATION.md §Current State describes what is wrong and the full implementation checklist (5 steps).