Troika Physics

[RichardTrott]

New troika-physics module, powered by ammo.js.

Example Usage

class MyFacade extends InstanceableObject3DFacade {...}

const MyFacadePhysical = extendAsPhysical(MyFacade)

<Canvas3D
  continuousRender={true}
  objects={[
    {
      key: 'physicsManager',
      facade: PhysicsManager,
      simulationEnabled: true,
      children: [
        {
          key: 'ground',
          facade: MyGroundFacade,
          physics: {
            isStatic: true,
            restitution: 0.2
          }
        },
        {
          key: 'foo',
          facade: MyFacadePhysical,
          physics: {
            mass: 20,
            friction: 0.2,
            restitution: 0.8
          }
        }
      ]
    }
  ]}
/>

• Physics World running in a dedicated worker using the WASM build of Ammo.js
• WIP Soft body support. Reads vertices from the Facade's BufferGeometry and creates the soft volume automatically.
• WIP Rigid body support. Attempts to infer an appropriate CollisionShape from the Facade's ThreeJS Geometry

[lojjic]

I think if you add a this.notifyWorld('needsRender') call in the worker response handler, that should give a similar result as continousRender.

Alternatively, you could consider having the physics manager set up its own timing loop rather than hooking in to onBeforeRender.

[RichardTrott]

Thanks for the suggestions, that definitely sounds cleaner. I'll investigate those options next.