Physics

Rigid bodies run on Rapier (WASM, CPU). Boids, fluid, cloth and N-body run entirely on the GPU as TSL compute passes — no per-frame readback.

Rapier — stacking, ragdoll and joints

Fixed 1/60 s timestep with an accumulator. Click the floor to drop a batch of spheres, or spawn 2000 at once and watch the body count in the perf card.

Poster: a stack of boxes, a ragdoll and a stream of spheres on a dark floor

Reduced motion is on — showing the poster instead of the live scene.

Click the floor to spawn more bodies.