diff options
| author | skal <pascal.massimino@gmail.com> | 2026-02-13 23:17:42 +0100 |
|---|---|---|
| committer | skal <pascal.massimino@gmail.com> | 2026-02-13 23:17:42 +0100 |
| commit | 6fa9ccf86b0bbefb48cefae19d4162115a3d63d3 (patch) | |
| tree | 529f68a33d9e4dcc8e473ed604c0bfb6f6f2704f /doc/CNN_TEST_TOOL.md | |
| parent | f81a30d15e1e7db0492f45a0b9bec6aaa20ae5c2 (diff) | |
CNN v2: Alpha channel depth handling and layer visualization
Training changes:
- Changed p3 default depth from 0.0 to 1.0 (far plane semantics)
- Extract depth from target alpha channel in both datasets
- Consistent alpha-as-depth across training/validation
Test tool enhancements (cnn_test):
- Added load_depth_from_alpha() for R32Float depth texture
- Fixed bind group layout for UnfilterableFloat sampling
- Added --save-intermediates with per-channel grayscale composites
- Each layer saved as 4x wide PNG (p0-p3 stacked horizontally)
- Global layers_composite.png for vertical layer stack overview
Investigation notes:
- Static features p4-p7 ARE computed and bound correctly
- Sin_20_y pattern visibility difference between tools under investigation
- Binary weights timestamp (Feb 13 20:36) vs HTML tool (Feb 13 22:12)
- Next: Update HTML tool with canonical binary weights
handoff(Claude): HTML tool weights update pending - base64 encoded
canonical weights ready in /tmp/weights_b64.txt for line 392 replacement.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Diffstat (limited to 'doc/CNN_TEST_TOOL.md')
| -rw-r--r-- | doc/CNN_TEST_TOOL.md | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/doc/CNN_TEST_TOOL.md b/doc/CNN_TEST_TOOL.md index ee0d9c5..82d5799 100644 --- a/doc/CNN_TEST_TOOL.md +++ b/doc/CNN_TEST_TOOL.md @@ -176,11 +176,12 @@ Compare output.png with training/target_X/img_000.png **CNN v1:** Builds and runs, produces incorrect output (all white). Use CNNEffect in demo for visual validation. -**CNN v2:** ✅ Fully functional. Tested and working. +**CNN v2:** ⚠️ Partially functional. Readback works but output differs from HTML validation tool. - Loads binary weights from `workspaces/main/weights/cnn_v2_weights.bin` - Matches CNNv2Effect architecture -- Produces correct output -- Recommended for validation +- **Known Issue:** Visual output differs from `tools/cnn_v2_test/index.html` despite matching shader code +- Root cause under investigation (weight indexing? texture sampling? activation clamping?) +- Use HTML tool (`tools/cnn_v2_test/index.html`) for accurate validation --- |