diff options
| author | skal <pascal.massimino@gmail.com> | 2026-02-12 00:30:56 +0100 |
|---|---|---|
| committer | skal <pascal.massimino@gmail.com> | 2026-02-12 00:30:56 +0100 |
| commit | 89c46872127aaede53362f64cdc3fe9b3164650b (patch) | |
| tree | 844882239088b35f2b1b555029780d26c6b4cfe8 /output | |
| parent | 4e0b7c040c3e45c66767b936a8058f76bcc31bf1 (diff) | |
feat: implement beat-based timing system
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>
Diffstat (limited to 'output')
| -rw-r--r-- | output/layer_0.png | bin | 0 -> 199123 bytes |
| -rw-r--r-- | output/layer_1.png | bin | 0 -> 29714 bytes |
| -rw-r--r-- | output/ref/layer_0.png | bin | 0 -> 178798 bytes |
| -rw-r--r-- | output/ref/layer_1.png | bin | 0 -> 92025 bytes |
| -rw-r--r-- | output/toto.png | bin | 0 -> 10071 bytes |
| -rw-r--r-- | output/toto0.png | bin | 0 -> 22960 bytes |
6 files changed, 0 insertions, 0 deletions
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