threejs css3d_sandbox

作者: videring | 来源:发表于2020-04-28 15:44 被阅读0次

threejs css3d_sandbox
threejs相机只在水平或垂直方向上平移
three.js 的网站连接
Hello Three.js 之 Hello world!
threejs Light
threejs Light
Threejs 简介
微信小程序ThreeJs加载3D模型
Three.js克隆.clone()和复制.copy()
threejs绘制中文方案

threejs官方给出了一种结合常规dom的方案，可以很方便地实现一些选中、样式设置等操作，效果图如下：

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
        <link type="text/css" rel="stylesheet" href="main.css">
        <style>
            body {
                color: #000;
            }
            a {
                color: #080;
            }
        </style>
    </head>
    <body>
        <div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> css3d - sandbox</div>

        <script type="module">

            import * as THREE from '../build/three.module.js';

            import { TrackballControls } from './jsm/controls/TrackballControls.js';
            import { CSS3DRenderer, CSS3DObject } from './jsm/renderers/CSS3DRenderer.js';

            var camera, scene, renderer;

            var scene2, renderer2;

            var controls;

            init();
            animate();

            function init() {

                camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 1000 );
                camera.position.set( 200, 200, 200 );

                scene = new THREE.Scene();
                scene.background = new THREE.Color( 0xf0f0f0 );

                scene2 = new THREE.Scene();

                var material = new THREE.MeshBasicMaterial( { color: 0x000000, wireframe: true, wireframeLinewidth: 1, side: THREE.DoubleSide } );

                //

                for ( var i = 0; i < 10; i ++ ) {

                    var element = document.createElement( 'div' );
                    element.style.width = '100px';
                    element.style.height = '100px';
                    element.style.opacity = ( i < 5 ) ? 0.5 : 1;
                    element.style.background = new THREE.Color( Math.random() * 0xffffff ).getStyle();

                    var object = new CSS3DObject( element );
                    object.position.x = Math.random() * 200 - 100;
                    object.position.y = Math.random() * 200 - 100;
                    object.position.z = Math.random() * 200 - 100;
                    object.rotation.x = Math.random();
                    object.rotation.y = Math.random();
                    object.rotation.z = Math.random();
                    object.scale.x = Math.random() + 0.5;
                    object.scale.y = Math.random() + 0.5;
                    scene2.add( object );

                    var geometry = new THREE.PlaneBufferGeometry( 100, 100 );
                    var mesh = new THREE.Mesh( geometry, material );
                    mesh.position.copy( object.position );
                    mesh.rotation.copy( object.rotation );
                    mesh.scale.copy( object.scale );
                    scene.add( mesh );

                }

                //

                renderer = new THREE.WebGLRenderer( { antialias: true } );
                renderer.setPixelRatio( window.devicePixelRatio );
                renderer.setSize( window.innerWidth, window.innerHeight );
                document.body.appendChild( renderer.domElement );

                renderer2 = new CSS3DRenderer();
                renderer2.setSize( window.innerWidth, window.innerHeight );
                renderer2.domElement.style.position = 'absolute';
                renderer2.domElement.style.top = 0;
                document.body.appendChild( renderer2.domElement );

                controls = new TrackballControls( camera, renderer2.domElement );

            }

            function animate() {

                requestAnimationFrame( animate );

                controls.update();

                renderer.render( scene, camera );
                renderer2.render( scene2, camera );

            }

        </script>
    </body>
</html>