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  • threejs学习笔记03---网格

    <!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>
        //定义一些需要的变量
        var renderer, camera, scene, light, object;
        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);
        }
        //定义相机
        function initCamera(){
            camera = new THREE.PerspectiveCamera(45,width/height,1,10000);
            camera.position.x=0;
            camera.position.y=1000;
            camera.position.z=0;
            camera.up.x=0;
            camera.up.y=0;
            camera.up.z=1;
            camera.lookAt({
                x:0,
                y:0,
                z:0
            });
        }
        //定义场景
        function initScene(){
            scene = new THREE.Scene();
        }
        //定义灯光
        function initLight(){
            light = new THREE.DirectionalLight(0xFF0000,1.0,0);
            light.position.set(100,100,200);
            scene.add(light);
        }
        var cube;
        function initObject(){
            var geometry = new THREE.Geometry();
            geometry.vertices.push( new THREE.Vector3(-500,0,0));
            geometry.vertices.push( new THREE.Vector3(500,0,0));
    
            for(var i = 0;i<=20;i++){
                    var line = new THREE.Line(geometry,new THREE.LineBasicMaterial({color:0x000000,opacity:0.2}));
                    line.position.z=(i*50)-500;
                    scene.add(line);
    
                    var line = new THREE.Line(geometry,new THREE.LineBasicMaterial({color:0x000000,opacity:0.2}));
                    line.position.x = ( i * 50 ) - 500;
                    line.rotation.y = 90 * Math.PI / 180;
                    scene.add( line );
            }
    
        }
        function threeStart() {
            initThree();
            initCamera();
            initScene();
            initLight();
            initObject();
            renderer.clear();
            renderer.render(scene, camera);
        }
        window.onload = threeStart();
    </script>
    </body>
    </html>
    

      

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  • 原文地址:https://www.cnblogs.com/Webyangbowen/p/8058861.html
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