r142版本three.js 绘制一根线条
时间: 2023-06-28 08:12:16 浏览: 58
以下是使用r142版本的three.js绘制一根线条的示例代码:
```javascript
// 创建场景
const scene = new THREE.Scene();
// 创建相机
const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.z = 5;
// 创建渲染器
const renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
// 创建材质
const material = new THREE.LineBasicMaterial({ color: 0xffffff });
// 创建顶点
const points = [];
points.push(new THREE.Vector3(-2, 0, 0));
points.push(new THREE.Vector3(0, 2, 0));
points.push(new THREE.Vector3(2, 0, 0));
// 创建线条
const geometry = new THREE.BufferGeometry().setFromPoints(points);
const line = new THREE.Line(geometry, material);
// 将线条添加到场景中
scene.add(line);
// 渲染场景
function animate() {
requestAnimationFrame(animate);
renderer.render(scene, camera);
}
animate();
```
这段代码会创建一个场景、一个相机和一个渲染器,并在场景中绘制一根由三个顶点组成的线条。线条的材质为白色,位置在屏幕中间。最后通过循环调用渲染函数 `renderer.render(scene, camera)` 来渲染场景。