From 47397444b30b0f461b1633297a68300179586fda Mon Sep 17 00:00:00 2001 From: skal Date: Tue, 10 Feb 2026 08:01:25 +0100 Subject: feat: Add CNN post-processing effect with modular WGSL architecture MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Implements multi-layer convolutional neural network shader for stylized post-processing of 3D rendered scenes: **Core Components:** - CNNEffect: C++ effect class with single-layer rendering (expandable to multi-pass) - Modular WGSL snippets: cnn_activation, cnn_conv3x3/5x5/7x7, cnn_weights_generated - Placeholder identity-like weights for initial testing (to be replaced by trained weights) **Architecture:** - Flexible kernel sizes (3×3, 5×5, 7×7) via separate snippet files - ShaderComposer integration (#include resolution) - Residual connections (input + processed output) - Supports parallel convolutions (design ready, single conv implemented) **Size Impact:** - ~3-4 KB shader code (snippets + main shader) - ~2-4 KB weights (depends on network architecture when trained) - Total: ~5-8 KB (acceptable for 64k demo) **Testing:** - CNNEffect added to test_demo_effects.cc - 36/36 tests passing (100%) **Next Steps:** - Training script (scripts/train_cnn.py) to generate real weights - Multi-layer rendering with ping-pong textures - Weight quantization for size optimization handoff(Claude): CNN effect foundation complete, ready for training integration --- CMakeLists.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'CMakeLists.txt') diff --git a/CMakeLists.txt b/CMakeLists.txt index ee3dfc3..97b371a 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -151,6 +151,7 @@ if (DEMO_HEADLESS) src/gpu/effects/solarize_effect.cc src/gpu/effects/chroma_aberration_effect.cc src/gpu/effects/vignette_effect.cc + src/gpu/effects/cnn_effect.cc src/gpu/effects/post_process_helper.cc src/gpu/effects/shaders.cc src/gpu/effects/hybrid_3d_effect.cc @@ -180,6 +181,7 @@ else() src/gpu/effects/solarize_effect.cc src/gpu/effects/chroma_aberration_effect.cc src/gpu/effects/vignette_effect.cc + src/gpu/effects/cnn_effect.cc src/gpu/effects/post_process_helper.cc src/gpu/effects/shaders.cc src/gpu/effects/hybrid_3d_effect.cc -- cgit v1.2.3