three.js中如何给glb模型添加阴影和Points
时间: 2024-04-30 15:19:30 浏览: 9
在three.js中给glb模型添加阴影和Points需要分别进行设置。
添加阴影的步骤如下:
1. 将场景中需要接收阴影的物体的castShadow属性设置为true。
```javascript
mesh.castShadow = true;
```
2. 将场景中需要投射阴影的光源的shadow属性设置为true。
```javascript
light.shadow = true;
```
3. 设置渲染器的shadowMapEnabled属性为true,并设置需要接收阴影的物体的shadowMap属性为true。
```javascript
renderer.shadowMapEnabled = true;
mesh.receiveShadow = true;
```
添加Points的步骤如下:
1. 加载glb模型并获取其中的几何体。
```javascript
var loader = new GLTFLoader();
loader.load('model.glb', function(gltf) {
var mesh = gltf.scene.children[0];
var geometry = mesh.geometry;
// ...
});
```
2. 根据几何体创建Points对象。
```javascript
var points = new THREE.Points(geometry, material);
scene.add(points);
```
3. 设置Points对象的相应属性,如大小、颜色等。
```javascript
points.material.size = 10;
points.material.color = new THREE.Color(0xffffff);
```
综合起来,给glb模型同时添加阴影和Points的代码示例如下:
```javascript
var loader = new GLTFLoader();
loader.load('model.glb', function(gltf) {
var mesh = gltf.scene.children[0];
var geometry = mesh.geometry;
mesh.castShadow = true;
var points = new THREE.Points(geometry, new THREE.PointsMaterial({
size: 10,
color: 0xffffff
}));
scene.add(points);
var light = new THREE.DirectionalLight(0xffffff, 1);
light.position.set(0, 100, 0);
light.castShadow = true;
light.shadow.mapSize.width = 2048;
light.shadow.mapSize.height = 2048;
scene.add(light);
renderer.shadowMap.enabled = true;
mesh.receiveShadow = true;
});
```