在我的程序中，我有四个Physijs.BoxMesh(...)，并且它们都被添加到独立对象中。我想旋转四个物理盒，但是一旦将它们添加到第五对象中，它们就不会旋转。有什么方法可以旋转包含的对象？
编辑：这是我的所有代码：
<body></body>
<script src="http://gamingJS.com/Three.js"></script>
<script src="http://gamingJS.com/physi.js"></script>
<script src="http://gamingJS.com/ChromeFixes.js"></script>
<script>
// Physics settings
Physijs.scripts.ammo = 'http://gamingJS.com/ammo.js';
Physijs.scripts.worker = 'http://gamingJS.com/physijs_worker.js';
// This is where stuff in our game will happen:
var scene = new Physijs.Scene({ fixedTimeStep: 2 / 60 });
scene.setGravity(new THREE.Vector3( 0, -100, 0 ));
// This is what sees the stuff:
var width = window.innerWidth,
height = window.innerHeight,
aspect_ratio = width / height;
var camera = new THREE.PerspectiveCamera(75, aspect_ratio, 1, 10000);
// var camera = new THREE.OrthographicCamera(
// -width/2, width/2, height/2, -height/2, 1, 10000
// );
camera.position.z = 500;
scene.add(camera);
// This will draw what the camera sees onto the screen:
var renderer = new THREE.CanvasRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
document.body.style.backgroundColor = '#ffffff';
// ******** START CODING ON THE NEXT LINE ********
var m1 = new Physijs.BoxMesh(new THREE.CubeGeometry(20, 150, 20), new THREE.MeshBasicMaterial({color:0x000000}));
var m2 = new Physijs.BoxMesh(new THREE.CubeGeometry(20, 150, 20), new THREE.MeshBasicMaterial({color:0x000000}));
var m3 = new Physijs.BoxMesh(new THREE.CubeGeometry(20, 150, 20), new THREE.MeshBasicMaterial({color:0x000000}));
var m4 = new Physijs.BoxMesh(new THREE.CubeGeometry(20, 150, 20), new THREE.MeshBasicMaterial({color:0x000000}));
var ground = new Physijs.BoxMesh(new THREE.CubeGeometry(5e2, 10, 5e2), new THREE.MeshBasicMaterial({color:0x0000ff}), 0);
var tars = new Physijs.BoxMesh(new THREE.CubeGeometry(1, 1, 1), new THREE.MeshBasicMaterial());
m1.__dirtyPosition = true;
m1.position.x = -30;
m2.__dirtyPosition = true;
m2.position.x = -10;
m3.__dirtyPosition = true;
m3.position.x = 10;
m4.__dirtyPosition = true;
m4.position.x = 30;
ground.__dirtyPosition = true;
ground.position.y = -300;
tars.add(m1);
tars.add(m2);
tars.add(m3);
tars.add(m4);
scene.add(tars); // If I add Tars the Avatar, below at the document add listener, m1.setAngularVelocity(...) will not actually rotate the m1 block
scene.add(ground);
document.addEventListener('keydown', function(event) {
switch(event.keyCode) {
case 13:
m1.setAngularVelocity(new THREE.Vector3(1, 0, 0));
break;
case 100:
m2.setAngularVelocity(new THREE.Vector3(1, 0, 0));
break;
case 101:
m3.setAngularVelocity(new THREE.Vector3(1, 0, 0));
break;
case 102:
m4.setAngularVelocity(new THREE.Vector3(1, 0, 0));
break;
}
});
// Animate motion in the game
function animate() {
requestAnimationFrame(animate);
renderer.render(scene, camera);
}
animate();
// Run physics
function gameStep() {
scene.simulate();
// Update physics 60 times a second so that motion is smooth
setTimeout(gameStep, 1000/60);
}
gameStep();
</script>
这是不起作用的，因为Physijs网格具有无法从父对象3D继承的属性。例如，对象3D不能具有角动量。
获得所需行为的正确方法是使用Physijs约束。