Threejs：绘图

在.vue文件script中：

//设置好renderer（渲染器）、scene（场景）和camera（相机）
const renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );

const camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 500 );
camera.position.set( 0, 0, 100 );
camera.lookAt( 0, 0, 0 );

const scene = new THREE.Scene();

画线

线条来说，我们能使用的材质只有LineBasicMaterial 或者 LineDashedMaterial。

//create a blue LineBasicMaterial 
const material = new THREE.LineBasicMaterial( { color: 0x0000ff } );

 

绘制几何体

//定义带有一些顶点的geometry（几何体）。

const points = [];
points.push( new THREE.Vector3( - 10, 0, 0 ) );
points.push( new THREE.Vector3( 0, 10, 0 ) );
points.push( new THREE.Vector3( 10, 0, 0 ) );

const geometry = new THREE.BufferGeometry().setFromPoints( points );

页面效果：