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<title>demo.git/training/target_3, branch main</title>
<subtitle>Vide-coded 64k demo system</subtitle>
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<updated>2026-02-27T22:59:49Z</updated>
<entry>
<title>remove old files, add new training set</title>
<updated>2026-02-27T22:59:49Z</updated>
<author>
<name>skal</name>
<email>pascal.massimino@gmail.com</email>
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<published>2026-02-27T22:59:49Z</published>
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<entry>
<title>CNN v2: Alpha channel depth handling and layer visualization</title>
<updated>2026-02-13T22:17:42Z</updated>
<author>
<name>skal</name>
<email>pascal.massimino@gmail.com</email>
</author>
<published>2026-02-13T22:17:42Z</published>
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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 &lt;noreply@anthropic.com&gt;
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