@eulerjs/scene

Physics for a three.js scene, read from it, for eulerjs.

npm install @eulerjs/scene @eulerjs/bvh @eulerjs/core three three-mesh-bvh

ScenePhysics makes the bodies a scene's userData.physics asks for, the convention three.js's own physics addons read:

import { World } from '@eulerjs/core';
import { ScenePhysics } from '@eulerjs/scene';

floor.userData.physics = { mass: 0 };
crate.userData.physics = { mass: 5, restitution: 0.3, friction: 0.6 };

const world = new World();
world.use(new ScenePhysics()).addScene(scene);

Each object with userData.physics, a mesh or a group of them, becomes a body where it is drawn. three.js's box, sphere, cylinder, cone and capsule geometries collide as those shapes; anything else as its convex hull if it moves, or as its triangles if it doesn't.

EulerPhysics() is a drop-in for three.js's RapierPhysics, JoltPhysics and AmmoPhysics, with their API (addScene, addMesh, removeMesh, setMeshPosition, setMeshVelocity, applyImpulse, addHeightfield):

import { EulerPhysics } from '@eulerjs/scene';

const physics = await EulerPhysics(); // was: await RapierPhysics()
physics.addScene(scene);

Needs three 0.166 or later and three-mesh-bvh 0.9 or later. See the guide.

MIT licensed.