Colossum Physics Box3D wasm engine / WebGPU pose bridge
Capability lab CP—01 · live physics workloads · hardware + runtime telemetry on
Negotiating runtime API docs
Height-field proving ground / 2,000 bodies

One batch. Three shapes. One terrain.

Spheres, boxes, and cylinders fall across a deterministic height field while stable visual slots feed one packed-pose render bridge.

No per-body frame calls · no per-body CPU matrices · stable visual slots
Frame ledger Rolling median · physics ≠ RAF
Box3D step
Render GPU
RAF interval
Pose pack
Shared staging
writeBuffer call
Upload queue drain
Render encode
Runtime commissioning

Selecting a Box3D module…

Checking WebAssembly SIMD, shared memory, cross-origin isolation, and WebGPU.