• threejs学习笔记04---物体动


    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <style>
            html, body {
                margin: 0;
                padding: 0;
            }
            div#canvas-frame {
                border: none;
                cursor: pointer;
                 100%;
                height: 600px;
                background-color: #EEEEEE;
            }
        </style>
    </head>
    <body>
    <div id="canvas-frame"></div>
    <script src="js/three.js"></script>
    <script src="js/Stats.js"></script>
    <script src="js/tween.min.js"></script>
    <script>
        //定义一些需要的变量
        var renderer, camera, scene, light, object,stats,TWEEN;
        var width, height;
        //初始化three
        function initThree(){
            width = document.getElementById('canvas-frame').clientWidth;
            height=document.getElementById('canvas-frame').clientHeight;
            renderer= new THREE.WebGLRenderer({
                antialias:true
            });
            renderer.setSize(width,height);
            document.getElementById('canvas-frame').appendChild(renderer.domElement);
            renderer.setClearColor(0xFFFFFF, 1.0);
    
            //性能监视器
            stats = new Stats();
            stats.domElement.style.position="absolute";
            stats.domElement.style.left="0px";
            stats.domElement.style.top="0px";
            document.getElementById('canvas-frame').appendChild(stats.domElement)
        }
        var camera;
        function initCamera() {
            camera = new THREE.PerspectiveCamera(45, width / height, 1, 10000);
            camera.position.x = 0;
            camera.position.y = 0;
            camera.position.z = 600;
            camera.up.x = 0;
            camera.up.y = 1;
            camera.up.z = 0;
            camera.lookAt({
                x : 0,
                y : 0,
                z : 0
            });
        }
    
        var scene;
        function initScene() {
            scene = new THREE.Scene();
        }
    
        var light;
        function initLight() {
            light = new THREE.AmbientLight(0xFF0000);
            light.position.set(100, 100, 200);
            scene.add(light);
            light = new THREE.PointLight(0x00FF00);
            light.position.set(0, 0,300);
            scene.add(light);
        }
    
        var cube;
        var mesh;
        function initObject() {
            var geometry = new THREE.CylinderGeometry( 100,150,400);
            var material = new THREE.MeshLambertMaterial( { color:0xFFFFFF} );
            mesh = new THREE.Mesh( geometry,material);
            mesh.position = new THREE.Vector3(0,0,0);
            scene.add(mesh);
        }
    
        function threeStart() {
            initThree();
            initCamera();
            initScene();
            initLight();
            initObject();
            animation();
    
        }
        function animation()
        {
            mesh.position.x-=1;
            renderer.render(scene, camera);
            requestAnimationFrame(animation);
            //调用stats.update()函数来统计时间和帧数
            stats.update();
        }
    
        window.onload = threeStart();
    </script>
    </body>
    </html>
    

      

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  • 原文地址:https://www.cnblogs.com/Webyangbowen/p/8058874.html
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