three.js water
时间: 2024-08-15 11:07:32 浏览: 46
在Three.js中,你可以通过Water.js库来实现逼真的水面效果。以下是创建波动水面的基本步骤:
1. **引入Water.js库**[^1]:
```javascript
import { Water } from 'three/examples/jsm/objects/Water.js';
```
2. **创建Water水面模型对象**:
```javascript
const waterGeometry = new THREE.PlaneBufferGeometry(100, 100); // 指定几何形状和大小
const waterMaterial = new THREE.WaterMaterial({ alphaTest: 0.5 }); // 设置材质参数
const water = new Water(waterGeometry, waterMaterial);
scene.add(water); // 将水面添加到场景中
```
3. **初始化水面**:
```javascript
water.simulate(); // 开始模拟波浪运动
```
4. **设置水面属性**:
可以调整水的透明度(alpha),反射高度(reflectionDistance),以及其他的WaterMaterial选项。
为了获得更详细的效果,可能还需要配置其他Three.js组件,如Camera(相机)和Lighting(照明)。
相关问题
three.js environment
Three.js是一个用于创建3D图形的JavaScript库。它提供了一个强大的环境,可以用来创建各种各样的3D场景和效果。在Three.js中,我们可以创建包括天空、水、地形等在内的各种环境效果。
关于Three.js环境的介绍和演示,以下是一个示例:
```javascript
// 创建场景
var scene = new THREE.Scene();
// 创建相机
var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.z = 5;
// 创建渲染器
var renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
// 创建天空盒子
var skyGeometry = new THREE.SphereGeometry(500, 60, 40);
var skyMaterial = new THREE.MeshBasicMaterial({ map: new THREE.TextureLoader().load('sky.jpg'), side: THREE.BackSide });
var sky = new THREE.Mesh(skyGeometry, skyMaterial);
scene.add(sky);
// 创建水面
var waterGeometry = new THREE.PlaneBufferGeometry(10000, 10000);
var water = new THREE.Water(waterGeometry, {
textureWidth: 512,
textureHeight: 512,
waterNormals: new THREE.TextureLoader().load('water.jpg', function (texture) {
texture.wrapS = texture.wrapT = THREE.RepeatWrapping;
}),
alpha: 1.0,
sunDirection: new THREE.Vector3(),
sunColor: 0xffffff,
waterColor: 0x001e0f,
distortionScale: 3.7,
});
water.rotation.x = -Math.PI / 2;
scene.add(water);
// 创建光源
var light = new THREE.DirectionalLight(0xffffff, 1);
light.position.set(1, 1, 1).normalize();
scene.add(light);
// 动画循环
function animate() {
requestAnimationFrame(animate);
water.material.uniforms.time.value += 1.0 / 60.0;
renderer.render(scene, camera);
}
animate();
```
这个示例创建了一个包含天空和水面的Three.js环境。你可以根据自己的需求修改和扩展这个示例,添加更多的元素和效果。
three.js实现水面倒影效果
要实现水面倒影效果,可以使用three.js的水面倒影插件`three.js-water`。这个插件可以创建一个水面对象,并且将其反射到场景中,从而实现水面倒影效果。
以下是实现水面倒影效果的基本步骤:
1. 导入`three.js`和`three.js-water`插件。
```javascript
import * as THREE from 'three';
import Water from 'three-water';
```
2. 创建场景、渲染器和相机。
```javascript
const scene = new THREE.Scene();
const renderer = new THREE.WebGLRenderer();
const camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 1, 1000);
camera.position.set(0, 100, 200);
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
```
3. 创建水面对象。
```javascript
const waterGeometry = new THREE.PlaneBufferGeometry(10000, 10000);
const water = new Water(waterGeometry, {
color: 'blue',
scale: 5,
flowDirection: new THREE.Vector2(1, 1),
textureWidth: 512,
textureHeight: 512,
reflectivity: 0.3
});
water.rotation.x = -Math.PI / 2;
scene.add(water);
```
4. 创建地面对象,并将其添加到场景中。
```javascript
const groundGeometry = new THREE.PlaneBufferGeometry(10000, 10000);
const groundMaterial = new THREE.MeshPhongMaterial({
color: 0x999999,
depthWrite: false
});
const ground = new THREE.Mesh(groundGeometry, groundMaterial);
ground.rotation.x = -Math.PI / 2;
scene.add(ground);
```
5. 创建一个立方体,并将其添加到场景中。
```javascript
const cubeGeometry = new THREE.BoxBufferGeometry(50, 50, 50);
const cubeMaterial = new THREE.MeshPhongMaterial({
color: 'red'
});
const cube = new THREE.Mesh(cubeGeometry, cubeMaterial);
cube.position.set(0, 25, 0);
scene.add(cube);
```
6. 创建一个点光源,并将其添加到场景中。
```javascript
const light = new THREE.PointLight('white', 1, 1000);
light.position.set(0, 200, 0);
scene.add(light);
```
7. 使用`three.js-water`插件提供的`update`方法更新水面对象。
```javascript
function animate() {
requestAnimationFrame(animate);
water.material.uniforms.time.value += 1.0 / 60.0;
water.render();
renderer.render(scene, camera);
}
animate();
```
通过以上步骤,就可以在three.js中实现水面倒影效果了。完整的代码示例可以参考`three.js-water`插件的官方文档。