Tags: obscurebit/oav

working oav

GPU particle system + mass-spring jello mesh

- GPUParticleSystem: 16K particles via WebGL2 transform feedback
  - Emitters: firework, fountain, sparkle
  - Physics: gravity, drag, turbulence, trails, fade
  - Tap gestures → firework bursts at click location

- GPUSpringSystem: spring-centric mass-spring (Hooke's law + damping)
  - Grid meshes: jello, cloth, tendrils, webs
  - Mouse drag influences mesh (push/pull)
  - Audio-reactive jiggle on bass
  - Tap gestures poke the mesh

- Integrated into render pipeline (draw between scenes and text overlay)
- Debug overlay shows GPU particle/spring counts
- __OAV__ exposes gpuParticles, gpuSprings, firework(), sparkle(), pokeSprings()

119 tests passing, tsc clean