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- Change draw call from 21 to 3 vertices (fullscreen triangle)
- Replace broken folding-based SDF with IQ's atan-based regular polygon formula
- Simplify test timeline to render Heptagon directly to sink
- Reduce heptagon radius from 0.5 to 0.3 for better visibility
The effect was not visible due to incorrect vertex count and broken SDF
returning negative values everywhere (showing only fill color).
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Hybrid3D was calling Renderer3D::render() which creates its own command
encoder, bypassing the sequence system. Now uses renderer_.draw() with
the passed encoder.
Also adds texture blit support for RotatingCube compositing.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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- Fix shader struct to match C++ (add strength_audio, stretch)
- Increase default blur strength to 8.0 for visibility
- Add blur effect to test sequence for validation
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Prevents compilation errors when multiple sequences share the same name.
Compiler now appends _{index}_Sequence for unique class names.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Remove END_DEMO keyword from timeline format. Demo duration now
calculated from max effect end time across all sequences. Sort
sequences by start time at compile time for deterministic ordering.
Changes:
- seq_compiler.py: Auto-calculate duration, sort sequences
- seq_compiler.cc: Remove END_DEMO parsing, sort by start time
- workspaces/test/timeline.seq: Remove END_DEMO directive
- Generated timeline.cc: Duration now 40.0f (was hardcoded)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Ports PeakMeterEffect to v2 Effect system with proper DAG routing.
Red horizontal bar overlay displays audio_intensity for visual debugging
of audio-visual synchronization.
Changes:
- New: src/effects/peak_meter_effect.{h,cc} - v2 implementation
- Timeline: FlashEffect -> flash_out -> PeakMeterEffect -> sink
- Build: Added to COMMON_GPU_EFFECTS and demo_effects.h
- Test: Added to test_demo_effects.cc (9/9 effects pass)
- Cleanup: Removed old disabled PeakMeterEffect code from test_demo.cc
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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- FlashEffect: Beat-synchronized white flash using ShaderComposer
- Loads shader from assets (flash.wgsl) with sequence_uniforms include
- Uses pow(1.0 - beat_phase, 4.0) for sharp flash at beat start
- Updated test_demo.seq to use FlashEffect (was HeptagonEffect)
- Added FlashEffect to test suite (test_demo_effects.cc)
- Made cnn_test conditional on main workspace (fixes build error)
- Flash intensity: 1.0 at beat start, fades to 0.0 by beat end
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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BREAKING CHANGE: Timeline format now uses beats as default unit
## Core Changes
**Uniform Structure (32 bytes maintained):**
- Added `beat_time` (absolute beats for musical animation)
- Added `beat_phase` (fractional 0-1 for smooth oscillation)
- Renamed `beat` → `beat_phase`
- Kept `time` (physical seconds, tempo-independent)
**Seq Compiler:**
- Default: all numbers are beats (e.g., `5`, `16.5`)
- Explicit seconds: `2.5s` suffix
- Explicit beats: `5b` suffix (optional clarity)
**Runtime:**
- Effects receive both physical time and beat time
- Variable tempo affects audio only (visual uses physical time)
- Beat calculation from audio time: `beat_time = audio_time * BPM / 60`
## Migration
- Existing timelines: converted with explicit 's' suffix
- New content: use beat notation (musical alignment)
- Backward compatible via explicit notation
## Benefits
- Musical alignment: sequences sync to bars/beats
- BPM independence: timing preserved on BPM changes
- Shader capabilities: animate to musical time
- Clean separation: tempo scaling vs. visual rendering
## Testing
- Build: ✅ Complete
- Tests: ✅ 34/36 passing (94%)
- Demo: ✅ Ready
handoff(Claude): Beat-based timing system implemented. Variable tempo
only affects audio sample triggering. Visual effects use physical_time
(constant) and beat_time (musical). Shaders can now animate to beats.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Add `# WORKSPACE: <name>` header to all workspace config files:
- timeline.seq
- music.track
- assets.txt
Format: First line contains workspace identifier.
Editors must preserve this header comment.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Self-contained workspaces for parallel demo development.
Structure:
- workspaces/main,test - Demo-specific resources
- assets/common - Shared resources
- workspace.cfg - Configuration per workspace
CMake integration:
- DEMO_WORKSPACE option (defaults to main)
- cmake/ParseWorkspace.cmake - Config parser
- Workspace-relative asset/timeline/music paths
Migration:
- Main demo: demo.seq to workspaces/main/timeline.seq
- Test demo: test_demo.seq to workspaces/test/timeline.seq
- Common shaders: assets/common/shaders
- Workspace shaders: workspaces/*/shaders
Build:
cmake -B build -DDEMO_WORKSPACE=main
cmake -B build_test -DDEMO_WORKSPACE=test
All tests passing (36/36).
handoff(Claude): Task #77 workspace system complete. Both main and test workspaces build and pass all tests.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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