feat: add force field particle system demo#238
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surajsahani wants to merge 1 commit intogoogle:mainfrom
Open
feat: add force field particle system demo#238surajsahani wants to merge 1 commit intogoogle:mainfrom
surajsahani wants to merge 1 commit intogoogle:mainfrom
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Adds a new XR demo featuring curl noise-driven particles with interactive attractor, repulsor, and vortex force sources. Math highlights: - 3D simplex noise with fBm for curl noise computation - Divergence-free vector field via central-difference curl - Inverse-square attractor/repulsor forces with soft-core regularization - Tangential vortex forces via cross product - Symplectic Euler integration for energy-conserving particle physics - 5000 GPU-instanced particles with speed-to-HSL color mapping Files: - demos/forcefield/noise.ts — simplex noise + fBm - demos/forcefield/VectorField.ts — curl noise + force sources - demos/forcefield/ForceFieldParticles.ts — particle system + integrator - demos/forcefield/ForceFieldScene.ts — XR scene with depth mesh interaction - demos/forcefield/main.ts + index.html — entry point
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I loaded this up in the simulator and on devices. I can see the particles but it doesn't seem to interact with anything. Neither depth or hands do anything. Is this expected? |
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Adds a new XR demo featuring curl noise-driven particles with interactive attractor, repulsor, and vortex force sources.
Math highlights:
Files: