通过ThreeJS中提供的位姿控制器TransformControls手动调整木偶人模型的位姿状态的代码和步骤
时间: 2024-03-25 14:37:24 浏览: 59
要通过ThreeJS中提供的位姿控制器TransformControls手动调整木偶人模型的位姿状态,可以按照以下步骤进行操作:
1. 创建一个ThreeJS场景和渲染器
```javascript
var scene = new THREE.Scene();
var renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
```
2. 创建一个相机,并设置其位置
```javascript
var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.z = 5;
```
3. 加载木偶人模型,并将其添加到场景中
```javascript
var loader = new THREE.ObjectLoader();
loader.load('path/to/puppet.json', function (object) {
scene.add(object);
});
```
4. 创建一个位姿控制器TransformControls,并将其绑定到木偶人模型上
```javascript
var controls = new THREE.TransformControls(camera, renderer.domElement);
controls.attach(object);
scene.add(controls);
```
5. 监听鼠标事件,并在鼠标按下时启用位姿控制器
```javascript
var mouse = new THREE.Vector2();
var raycaster = new THREE.Raycaster();
var selectedObject = null;
function onMouseDown(event) {
event.preventDefault();
mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
mouse.y = -(event.clientY / window.innerHeight) * 2 + 1;
raycaster.setFromCamera(mouse, camera);
var intersects = raycaster.intersectObjects(scene.children, true);
if (intersects.length > 0) {
selectedObject = intersects[0].object;
controls.attach(selectedObject);
}
}
window.addEventListener('mousedown', onMouseDown, false);
```
6. 监听键盘事件,并在按下键盘上的“S”键时保存木偶人模型的当前位姿状态
```javascript
function onKeyDown(event) {
if (event.keyCode === 83) { // S key
var json = JSON.stringify(object.toJSON());
// save json to file or send to server
}
}
window.addEventListener('keydown', onKeyDown, false);
```
通过以上步骤,你就可以通过ThreeJS中提供的位姿控制器TransformControls手动调整木偶人模型的位姿状态了。