demo.git/.gitignore, branch main

chore: clean up timeline editor temp files and update gitignore

2026-02-15T17:58:18Z

Removed temporary files: - test_in.seq, test_out.seq - timeline_save.seq - tools/timeline_editor/timeline.seq Added gitignore patterns for editor artifacts: - test_*.seq - *_save.seq - tools/timeline_editor/timeline.seq

refactor(build): granular asset tracking and CMake deduplication

2026-02-15T17:05:22Z

Implements Phases 1 & 2 of CMake consolidation plan to improve incremental build performance and reduce code duplication. Phase 1: Asset Granularity - Split asset packing into 4 categories (shaders, audio, models, data) - Each category generates a stamp file for dependency tracking - Unified output (assets_data.cc) avoids duplicate symbols - Changing a single asset category only rebuilds affected targets - Added demo_add_asset_deps() macro for clean category dependencies Phase 2: CMake Deduplication - Extracted COMMON_GPU_EFFECTS (25 files) from duplicated GPU_SOURCES - Extracted COMMON_3D_FILES (9 files) from duplicated 3D_SOURCES - Removed library-level asset dependencies (DemoLibraries.cmake) - Replaced 43 individual add_dependencies() with macro pattern Impact: - Incremental builds 3-5× faster for typical asset changes - -30 lines GPU/3D source duplication - -43 individual test dependency declarations - 33/34 tests passing (1 pre-existing AudioEngineTest failure) Phase 3 (Effect Decoupling): Deferred as TODO - Would eliminate demo_effects.h hub pattern - Requires dual-mode implementation (dynamic dev, flat production) - Not blocking current workflow Updated Documentation: - doc/CMAKE_MODULES.md: Added demo_add_asset_deps() docs - doc/BUILD.md: Documented asset category system Co-Authored-By: Claude Sonnet 4.5

CNN v2: bilinear mip-level sampling and UI improvements

2026-02-14T06:24:51Z

**CNN v2 Changes:** - Replace point sampling with bilinear interpolation for mip-level features - Add linear sampler (binding 6) to static features shader - Update CNNv2Effect, cnn_test, and HTML tool **HTML Tool UI:** - Move controls to floating bottom bar in central view - Consolidate video controls + Blend/Depth/Save PNG in single container - Increase left panel width: 300px → 315px (+5%) - Remove per-frame debug messages (visualization, rendering logs) **Technical:** - WGSL: textureSample() with linear_sampler vs textureLoad() - C++: Create WGPUSampler with Linear filtering - HTML: Change sampler from 'nearest' to 'linear' handoff(Claude): CNN v2 now uses bilinear mip-level sampling across all tools

ignore validation results

2026-02-12T13:00:45Z

feat: Add checkpointing support to CNN training script

2026-02-10T09:39:25Z

- Save checkpoints every N epochs (--checkpoint-every) - Resume from checkpoint (--resume) - Store model, optimizer, epoch, loss, and architecture info - Auto-create checkpoint directory Co-Authored-By: Claude Sonnet 4.5

don't ignore assets/final

2026-02-08T21:46:09Z

chore: Clean up generated files and update project config

2026-02-08T10:44:45Z

- Remove src/generated/ directory to avoid committing generated code. - Update .gitignore to exclude src/generated/. - Stage modifications made to audio tracker, main, and test demo files.

refactor(3d): Split Renderer3D into modular files and fix compilation.

2026-02-08T08:46:31Z

feat(audio): Add RMS normalization to spectool for consistent sample loudness

2026-02-06T17:31:14Z

IMPLEMENTATION: - Added --normalize flag to spectool analyze command - Default target RMS: 0.15 (customizable via --normalize [rms]) - Two-pass processing: load all PCM → calculate RMS/peak → normalize → DCT - Peak-limiting safety: prevents clipping by limiting scale factor if peak > 1.0 - Updated gen_spectrograms.sh to use --normalize by default ALGORITHM: 1. Calculate original RMS and peak of input audio 2. Compute scale factor to reach target RMS (default 0.15) 3. Check if scaled peak would exceed 1.0 (after windowing + IDCT) 4. If yes, reduce scale factor to keep peak ≤ 1.0 (prevents clipping) 5. Apply scale factor to all PCM samples before windowing/DCT RESULTS: Before normalization: - RMS range: 0.054 - 0.248 (4.6x variation, ~13 dB) - Some peaks > 1.0 (clipping) After normalization: - RMS range: 0.049 - 0.097 (2.0x variation, ~6 dB) ✅ 2.3x improvement - All peaks < 1.0 (no clipping) ✅ SAMPLES REGENERATED: - All 14 .spec files regenerated with normalization - High dynamic range samples (SNARE_808, CRASH_DMX, HIHAT_CLOSED_DMX) were peak-limited to prevent clipping - Consistent loudness across all drum and bass samples GITIGNORE CHANGE: - Removed *.spec from .gitignore to track normalized spectrograms - This ensures reproducibility and prevents drift from source files handoff(Claude): RMS normalization implemented and working. All samples now have consistent loudness with no clipping.

chore: Update HANDOFF.md with Phase 1 completion details

2026-02-05T18:38:58Z

Documents the completion of Task #56 Phase 1 (Audio Lifecycle Refactor): - New components: AudioEngine and SpectrogramResourceManager - Test suite implementation and results - Technical debt identified - Next steps for Phase 2-4 - Binary size impact analysis Also adds Testing/ directory to .gitignore to prevent committing temporary CTest data. Status: Phase 1 complete, all 20 tests passing (100%) Co-Authored-By: Claude Sonnet 4.5