From 89c46872127aaede53362f64cdc3fe9b3164650b Mon Sep 17 00:00:00 2001 From: skal Date: Thu, 12 Feb 2026 00:30:56 +0100 Subject: feat: implement beat-based timing system MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 --- workspaces/main/timeline.seq.backup | 105 ++++++++++++++++++++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 workspaces/main/timeline.seq.backup (limited to 'workspaces/main/timeline.seq.backup') diff --git a/workspaces/main/timeline.seq.backup b/workspaces/main/timeline.seq.backup new file mode 100644 index 0000000..c3e2316 --- /dev/null +++ b/workspaces/main/timeline.seq.backup @@ -0,0 +1,105 @@ +# Demo Timeline +# Generated by Timeline Editor +# BPM 120 + +SEQUENCE 0.00 0 + EFFECT - FlashCubeEffect 0.00 2.44 + EFFECT + FlashEffect 0.00 1.00 color=1.0,0.5,0.5 decay=0.95 + EFFECT + FadeEffect 0.10 1.00 + EFFECT + SolarizeEffect 0.00 2.00 + EFFECT + VignetteEffect 0.00 2.50 radius=0.6 softness=0.1 + +SEQUENCE 2.50 0 "rotating cube" + EFFECT + CircleMaskEffect 0.00 4.00 0.50 + EFFECT + RotatingCubeEffect 0.00 4.00 + EFFECT + GaussianBlurEffect 1.00 2.00 strength=1.0 + EFFECT + GaussianBlurEffect 3.00 4.00 strength=2.0 + +SEQUENCE 5.93 0 + EFFECT - FlashCubeEffect 0.11 1.45 + EFFECT + FlashEffect 0.00 0.20 + +SEQUENCE 6.90 1 "spray" + EFFECT + ParticleSprayEffect 0.00 2.00 + EFFECT + ParticlesEffect 0.00 3.00 + EFFECT = GaussianBlurEffect 0.00 2.00 strength=3.0 + +SEQUENCE 8.50 2 "Hybrid3D" + EFFECT + ThemeModulationEffect 0.00 2.00 + EFFECT + HeptagonEffect 0.20 2.00 + EFFECT + ParticleSprayEffect 0.00 2.00 + EFFECT = ParticlesEffect 0.00 2.00 + EFFECT + Hybrid3DEffect 0.00 2.00 + EFFECT + GaussianBlurEffect 0.00 2.00 + EFFECT + CNNEffect 0.0 2.0 layers=3 blend=.9 +# EFFECT + ChromaAberrationEffect 0.00 1.50 offset=0.01 angle=1.57 + +SEQUENCE 10.50 0 "CNN effect" + EFFECT + HeptagonEffect 0.0 12.00 +# EFFECT + RotatingCubeEffect 0.00 12.0 +# EFFECT + Hybrid3DEffect 0.00 12.00 + EFFECT + Scene1Effect 0.0 12.0 + EFFECT + CNNEffect 1.0 12.0 layers=3 blend=.5 + +SEQUENCE 22.0 0 "buggy" + EFFECT + HeptagonEffect 0.00 0.20 + EFFECT + FadeEffect 0.11 1.01 + +SEQUENCE 22.14 3 + EFFECT + ThemeModulationEffect 0.00 4.00 + EFFECT = HeptagonEffect 0.00 4.00 + EFFECT + GaussianBlurEffect 0.00 5.00 strength=1.5 + EFFECT + ChromaAberrationEffect 0.00 5.00 offset=0.03 angle=0.785 + EFFECT + SolarizeEffect 0.00 5.00 + +SEQUENCE 23.00 2 + EFFECT - FlashCubeEffect 0.20 1.50 + EFFECT + HeptagonEffect 0.00 2.00 + EFFECT + ParticleSprayEffect 0.00 2.00 + EFFECT + ParticlesEffect 0.00 2.00 + +SEQUENCE 22.75 2 "Fade" + EFFECT - FlashCubeEffect 0.20 1.50 + EFFECT + FlashEffect 0.00 1.00 + +SEQUENCE 23.88 10 + EFFECT - FlashCubeEffect 0.20 1.50 + EFFECT + GaussianBlurEffect 0.00 2.00 + EFFECT + FlashEffect 0.00 0.20 + EFFECT = FlashEffect 0.50 0.20 + +SEQUENCE 25.59 1 + EFFECT + ThemeModulationEffect 0.00 8.00 + EFFECT + HeptagonEffect 0.20 2.00 + EFFECT + ParticleSprayEffect 0.00 8.00 + EFFECT + Hybrid3DEffect 0.00 8.06 + EFFECT + GaussianBlurEffect 0.00 8.00 + EFFECT + ChromaAberrationEffect 0.00 8.14 + EFFECT + SolarizeEffect 0.00 7.88 + +SEQUENCE 33.08 0 + EFFECT + ThemeModulationEffect 0.00 3.00 + EFFECT + VignetteEffect 0.00 3.00 radius=0.6 softness=0.3 + EFFECT + SolarizeEffect 0.00 3.00 + +SEQUENCE 35.31 0 + EFFECT + ThemeModulationEffect 0.00 4.00 + EFFECT + HeptagonEffect 0.20 2.00 + EFFECT + GaussianBlurEffect 0.00 8.00 + EFFECT + SolarizeEffect 0.00 2.00 + +SEQUENCE 42.29 0 + EFFECT + ThemeModulationEffect 0.00 6.00 + EFFECT = HeptagonEffect 0.20 2.00 + EFFECT + Hybrid3DEffect 0.00 4.00 + EFFECT + ParticleSprayEffect 0.00 5.50 + EFFECT + HeptagonEffect 0.00 8.00 + EFFECT + ChromaAberrationEffect 0.00 7.50 + EFFECT + GaussianBlurEffect 0.00 8.00 + +SEQUENCE 50.02 0 + EFFECT + ThemeModulationEffect 0.00 4.00 + EFFECT + HeptagonEffect 0.00 9.50 + EFFECT + ChromaAberrationEffect 0.00 9.00 + EFFECT + GaussianBlurEffect 0.00 8.00 + -- cgit v1.2.3