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diff --git a/PROJECT_CONTEXT.md b/PROJECT_CONTEXT.md index 4767185..6219275 100644 --- a/PROJECT_CONTEXT.md +++ b/PROJECT_CONTEXT.md @@ -36,17 +36,17 @@ - **Audio:** Sample-accurate sync. Zero heap allocations per frame. Variable tempo. OLA-IDCT synthesis (v2 .spec): Hann analysis window, rectangular synthesis, 50% overlap, click-free. V1 (raw DCT-512) preserved for generated notes. .spec files regenerated as v2. - **Shaders:** Parameterized effects (UniformHelper, .seq syntax). Beat-synchronized animation support (`beat_time`, `beat_phase`). Modular WGSL composition with ShaderComposer. 27 shared common shaders (math, render, compute). Reusable snippets: `render/scratch_lines`, `render/ntsc_common` (NTSC signal processing, RGB and YIQ input variants via `sample_ntsc_signal` hook), `math/color` (YIQ/NTSC), `math/color_c64` (C64 palette, Bayer dither, border animation). - **3D:** Hybrid SDF/rasterization with BVH. Binary scene loader. Blender pipeline. -- **Effects:** CNN post-processing: CNNEffect (v1) and CNNv2Effect operational. CNN v2: sigmoid activation, storage buffer weights (~3.2 KB), 7D static features, dynamic layers. Training stable, convergence validated. **CNN v3 Phase 4 complete:** `CNNv3Effect` C++ class (5 compute passes, FiLM uniform upload, identity γ/β defaults). `set_film_params()` modulates all layers via beat/audio. WGSL params struct alignment fix (vec3u align=16 → 64/96-byte C++ mirrors). Registered in CMake, shaders.h/cc, demo_effects.h, tests. See `cnn_v3/docs/HOWTO.md`. +- **Effects:** CNN post-processing: CNNEffect (v1) and CNNv2Effect operational. CNN v2: sigmoid activation, storage buffer weights (~3.2 KB), 7D static features, dynamic layers. Training stable, convergence validated. **CNN v3 Phases 1–5 complete:** `CNNv3Effect` C++ class (5 compute passes, FiLM uniform upload, identity γ/β defaults). Parity validated: enc0 max_err=1.95e-3, dec1 max_err=1.95e-3, final max_err=4.88e-4 (all ≤1/255). Key fix: intermediate nodes declared at fractional resolutions (W/2, W/4) via `NodeRegistry::default_width()/default_height()`. See `cnn_v3/docs/HOWTO.md`. - **Tools:** CNN test tool operational. Texture readback utility functional. Timeline editor (web-based, beat-aligned, audio playback). - **Build:** Asset dependency tracking. Size measurement. Hot-reload (debug-only). WSL (Windows 10) supported: native Linux build and cross-compile to `.exe` via `mingw-w64`. - **Sequence:** DAG-based effect routing with explicit node system. Python compiler with topological sort and ping-pong optimization. 12 effects operational (Passthrough, Placeholder, GaussianBlur, Heptagon, Particles, RotatingCube, Hybrid3D, Flash, PeakMeter, Scene1, Scene2, Scratch). Effect times are absolute (seq_compiler adds sequence start offset). See `doc/SEQUENCE.md`. -- **Testing:** **35/35 passing**. +- **Testing:** **36/36 passing**. --- ## Next Up -**Active:** CNN v3 Phase 5 (parity validation), Spectral Brush Editor +**Active:** CNN v3 training (`train_cnn_v3.py`), Spectral Brush Editor **Ongoing:** Test infrastructure maintenance (35/35 passing) **Future:** Size optimization (64k target), 3D enhancements |