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Split monolithic asset_manager.h (61 lines) into 3 focused headers:
- asset_manager_dcl.h: Forward declarations (AssetId, ProcGenFunc)
- asset_manager.h: Core API (GetAsset, DropAsset, AssetRecord)
- asset_manager_utils.h: Typed helpers (TextureAsset, MeshAsset)
Updated 17 source files to use appropriate headers:
- object.h: Uses dcl.h (only needs AssetId forward declaration)
- 7 files using TextureAsset/MeshAsset: Use utils.h
- 10 files using only GetAsset(): Keep asset_manager.h
Performance improvement:
- Before: Touch asset_manager.h → 4.82s (35 files rebuild)
- After: Touch asset_manager_utils.h → 2.01s (24 files rebuild)
- Improvement: 58% faster for common workflow (tweaking mesh/texture helpers)
Note: Touching base headers (dcl/core) still triggers ~33 file rebuilds
due to object.h dependency chain. Further optimization would require
reducing object.h's footprint (separate task).
Files changed:
- Created: asset_manager_dcl.h, asset_manager_utils.h
- Modified: asset_manager.h (removed structs), asset_manager.cc
- Updated: object.h, visual_debug.h, renderer_mesh.cc,
flash_cube_effect.cc, hybrid_3d_effect.cc, test files
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Fixed demo64k crash caused by incorrect manual parsing of procedural
texture headers in effects code.
Problem:
- Procedural textures (NOISE_TEX) have 8-byte header (width, height)
- Effects checked size == 256*256*4 (262,144 bytes)
- Actual size was 262,152 bytes (including header)
- Size mismatch caused texture load failure → WebGPU bind group panic
Solution:
- Use GetTextureAsset() helper that properly parses header
- Returns TextureAsset{width, height, pixels} with pixels pointing after header
- Updated flash_cube_effect.cc and hybrid_3d_effect.cc
Result:
- Demo runs without crashes
- NOISE_TEX loads correctly (256x256 RGBA8)
- No more WebGPU bind group errors
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This milestone implements several key enhancements to the sequencing system
and developer documentation:
## Optional Sequence End Times (New Feature)
- Added support for explicit sequence termination via [time] syntax
- Example: SEQUENCE 0 0 [30.0] forcefully ends all effects at 30 seconds
- Updated seq_compiler.cc to parse optional [time] parameter with brackets
- Added end_time_ field to Sequence class (default -1.0 = no explicit end)
- Modified update_active_list() to check sequence end time and deactivate
all effects when reached
- Fully backward compatible - existing sequences work unchanged
## Comprehensive Effect Documentation (demo.seq)
- Documented all effect constructor parameters (standard: device, queue, format)
- Added runtime parameter documentation (time, beat, intensity, aspect_ratio)
- Created detailed effect catalog with specific behaviors:
* Scene effects: HeptagonEffect, ParticlesEffect, Hybrid3DEffect, FlashCubeEffect
* Post-process effects: GaussianBlurEffect, SolarizeEffect, ChromaAberrationEffect,
ThemeModulationEffect, FadeEffect, FlashEffect
- Added examples section showing common usage patterns
- Documented exact parameter behaviors (e.g., blur pulsates 0.5x-2.5x,
flash triggers at intensity > 0.7, theme cycles every 8 seconds)
## Code Quality & Verification
- Audited all hardcoded 1280x720 dimensions throughout codebase
- Verified all shaders use uniforms.resolution and uniforms.aspect_ratio
- Confirmed Effect::resize() properly updates width_/height_ members
- No issues found - dimension handling is fully dynamic and robust
## Files Changed
- tools/seq_compiler.cc: Parse [end_time], generate set_end_time() calls
- src/gpu/effect.h: Added end_time_, set_end_time(), get_end_time()
- src/gpu/effect.cc: Check sequence end time in update_active_list()
- assets/demo.seq: Comprehensive syntax and effect documentation
- Generated files updated (timeline.cc, assets_data.cc, music_data.cc)
This work establishes a more flexible sequencing system and provides
developers with clear documentation for authoring demo timelines.
handoff(Claude): Optional sequence end times implemented, effect documentation
complete, dimension handling verified. Ready for next phase of development.
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