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| author | skal <pascal.massimino@gmail.com> | 2026-03-21 09:51:58 +0100 |
|---|---|---|
| committer | skal <pascal.massimino@gmail.com> | 2026-03-21 09:51:58 +0100 |
| commit | 673a24215b2670007317060325256059d1448f3b (patch) | |
| tree | bfb2cf37a93eb62055bcca8441d9b15c3533e17c /doc | |
| parent | b8b2707d7b3f2eaabd896395f2625e13405a24e2 (diff) | |
feat(cnn_v3): Phase 5 complete — parity validation passing (36/36 tests)
- Add test_cnn_v3_parity.cc: zero_weights + random_weights tests
- Add gen_test_vectors.py: PyTorch reference implementation for enc0/enc1/bn/dec1/dec0
- Add test_vectors.h: generated C header with enc0, dec1, output expected values
- Fix declare_nodes(): intermediate textures at fractional resolutions (W/2, W/4)
using new NodeRegistry::default_width()/default_height() getters
- Add layer-by-layer readback (enc0, dec1) for regression coverage
- Final parity: enc0 max_err=1.95e-3, dec1 max_err=1.95e-3, out max_err=4.88e-4
handoff(Claude): CNN v3 parity done. Next: train_cnn_v3.py (FiLM MLP training).
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/COMPLETED.md | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/doc/COMPLETED.md b/doc/COMPLETED.md index 6868484..7b925f0 100644 --- a/doc/COMPLETED.md +++ b/doc/COMPLETED.md @@ -36,6 +36,8 @@ Completed task archive. See `doc/archive/` for detailed historical documents. ## March 2026 +- [x] **CNN v3 Phase 5: Parity validation** — `test_cnn_v3_parity.cc` (2 tests: zero_weights, random_weights). Root cause: intermediate nodes declared at full res instead of W/2, W/4. Fix: `NodeRegistry::default_width()/default_height()` getters + fractional resolution in `declare_nodes()`. Final max_err=4.88e-4 ✓. 36/36 tests. + - [x] **CNN v3 Phase 4: C++ CNNv3Effect + FiLM uniform upload** — `cnn_v3/src/cnn_v3_effect.{h,cc}`. 5 compute passes (enc0→enc1→bottleneck→dec1→dec0), shared f16 weights buffer, per-pass uniform buffers, `set_film_params()` API. Key fix: WGSL `vec3u` has align=16, so `CnnV3Params4ch`=64B and `CnnV3ParamsEnc1`=96B (not 48/80). Weight offsets as explicit formulas. FiLM γ/β identity defaults; real values await `train_cnn_v3.py`. 35/35 tests. - [x] **NTSC post-process effect** — Fisheye distortion + NTSC scan-line simulation as `WgslEffect` thin wrappers. Common logic in `render/ntsc_common` snippet (`sample_ntsc_signal` hook). Two variants: `ntsc_rgb.wgsl` (RGB→YIQ internally, `Ntsc`) and `ntsc_yiq.wgsl` (YIQ passthrough, `NtscYiq`, for RotatingCube output). Files: `src/effects/ntsc_rgb.wgsl`, `ntsc_yiq.wgsl`, `src/shaders/render/ntsc_common.wgsl`, `ntsc_effect.h`. Tests: 36/36. |