threejs how to rotate around object's own center,instead of world center

Question

two objects in the scene. the cube rotate axis should be the cube\'s center,th

Answer 1

Heres how i got things to work on r86

// Store original position
let box = new THREE.Box3().setFromObject(this.mesh);
let offset = box.getCenter();

// Center geometry faces
this.geometry.center();

// Add to pivot group
this.group = new THREE.Object3D();
this.group.add(this.mesh);

// Offset pivot group by original position
this.group.position.set(offset.x, offset.y, offset.z);