一、前言

看这里！！！！不要再让我发邮箱了！

源码放到github上了： 请自行下载。

二、下载

打开页面，复制代码到本地

三、引用

使用如下方式在小游戏中引用three

let THREE = require(three.min.js的路径)

四、开始

创建3dgame.js文件

let THREE = require(./three/three)

export default class Game3d {
    constructor() {
        // 场景
        this.scene = new THREE.Scene();
        // 透视摄像头
        this.camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
        // webGL渲染器
        // 同时指定canvas为小游戏暴露出来的canvas
        this.renderer = new THREE.WebGLRenderer({
            canvas: canvas
        });
        this.start()
    }
    start() {
        this.renderer.setSize(window.innerWidth, window.innerHeight);
        var geometry = new THREE.CubeGeometry(1, 1, 1);
        // 加载纹理贴图
        var texture = new THREE.TextureLoader().load("images/metal.jpg");
        var material = new THREE.MeshBasicMaterial({ map: texture });
        this.cube = new THREE.Mesh(geometry, material);
        this.scene.add(this.cube);
        // 设置camera的高度，若是低于当前场景的高度则屁也看不到
        this.camera.position.z = 2.5;
        this.cube.castShadow = true
        console.log(this.cube)
        window.requestAnimationFrame(this.loop.bind(this), canvas);
    }
    update() {
        this.cube.rotation.x += 0.02;
        this.cube.rotation.y += 0.04;
        this.cube.rotation.z += 0.06;
    }
    loop() {
        this.update()
        this.renderer.render(this.scene, this.camera);
        window.requestAnimationFrame(this.loop.bind(this), canvas);
    }
}

import ./js/libs/weapp-adapter
import ./js/libs/symbol

import Game3d from ./3dgame

new Game3d()

五、效果