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23-THREE.JS 光照材质
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<!DOCTYPE html><html><head>
<title></title>
<script src="https://cdn.bootcss.com/three.js/r67/three.js"></script>
<script src="https://cdn.bootcss.com/stats.js/r10/Stats.min.js"></script>
<script type="text/javascript" src="https://cdn.bootcss.com/dat-gui/0.7.3/dat.gui.js"></script>
<script type="text/javascript" src="../libs/CanvasRenderer.js"></script>
<script type="text/javascript" src="../libs/Projector.js"></script> <style>
body {
margin: 0;
overflow: hidden;
}
</style>
</head>
<body><div id="Stats-output">
</div>
<div id="WebGL-output">
</div>
<script type="text/javascript"> // 初始化
function init() { var stats = initStats(); // 创建一个场景
var scene = new THREE.Scene(); // 场景一个相机
var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000); // 创建一个渲染器
var renderer;
var webGLRenderer = new THREE.WebGLRenderer();
webGLRenderer.setClearColor(new THREE.Color(0xEEEEEE, 1.0));
webGLRenderer.setSize(window.innerWidth, window.innerHeight);
webGLRenderer.shadowMapEnabled = true;// canvas渲染器
var canvasRenderer = new THREE.CanvasRenderer();
canvasRenderer.setSize(window.innerWidth, window.innerHeight);
renderer = webGLRenderer;//创建一个地面
var groundGeom = new THREE.PlaneGeometry(100, 100, 4, 4);
var groundMesh = new THREE.Mesh(groundGeom, new THREE.MeshBasicMaterial({color: 0x555555}));
groundMesh.rotation.x = -Math.PI / 2;
groundMesh.position.y = -20;
scene.add(groundMesh);//圆球 正方体 平面
var sphereGeometry = new THREE.SphereGeometry(14, 20, 20);
var cubeGeometry = new THREE.BoxGeometry(15, 15, 15);
var planeGeometry = new THREE.PlaneGeometry(14, 14, 4, 4);//设置光照材料
var meshMaterial = new THREE.MeshLambertMaterial({color: 0x7777ff});
var sphere = new THREE.Mesh(sphereGeometry, meshMaterial);
var cube = new THREE.Mesh(cubeGeometry, meshMaterial);
var plane = new THREE.Mesh(planeGeometry, meshMaterial); // 设置圆球的坐标
sphere.position.x = 0;
sphere.position.y = 3;
sphere.position.z = 2;// 设置正方体和平面的坐标
cube.position = sphere.position;
plane.position = sphere.position; // 把正方体添加到场景中区
scene.add(cube); // 设置相机的坐标和朝向
camera.position.x = -20;
camera.position.y = 30;
camera.position.z = 40;
camera.lookAt(new THREE.Vector3(10, 0, 0)); // 添加自然光
var ambientLight = new THREE.AmbientLight(0x0c0c0c);
scene.add(ambientLight); // 添加聚光灯
var spotLight = new THREE.SpotLight(0xffffff);
spotLight.position.set(-30, 60, 60);
spotLight.castShadow = true;
scene.add(spotLight); // 把渲染后的结果放到DOM元素中去
document.getElementById("WebGL-output").appendChild(renderer.domElement); var step = 0; var controls = new function () {
this.rotationSpeed = 0.02;
this.bouncingSpeed = 0.03; this.opacity = meshMaterial.opacity;
this.transparent = meshMaterial.transparent;
this.overdraw = meshMaterial.overdraw;
this.visible = meshMaterial.visible;
this.emissive = meshMaterial.emissive.getHex();
this.ambient = meshMaterial.ambient.getHex();
this.side = "front"; this.color = meshMaterial.color.getStyle();
this.wrapAround = false;
this.wrapR = 1;
this.wrapG = 1;
this.wrapB = 1; this.selectedMesh = "cube"; }; var gui = new dat.GUI(); var spGui = gui.addFolder("Mesh");
spGui.add(controls, 'opacity', 0, 1).onChange(function (e) {
meshMaterial.opacity = e
});
spGui.add(controls, 'transparent').onChange(function (e) {
meshMaterial.transparent = e
});
spGui.add(controls, 'visible').onChange(function (e) {
meshMaterial.visible = e
});
spGui.addColor(controls, 'ambient').onChange(function (e) {
meshMaterial.ambient = new THREE.Color(e)
});
spGui.addColor(controls, 'emissive').onChange(function (e) {
meshMaterial.emissive = new THREE.Color(e)
});
spGui.add(controls, 'side', ["front", "back", "double"]).onChange(function (e) {
console.log(e);
switch (e) {
case "front":
meshMaterial.side = THREE.FrontSide;
break;
case "back":
meshMaterial.side = THREE.BackSide;
break;
case "double":
meshMaterial.side = THREE.DoubleSide;
break;
}
meshMaterial.needsUpdate = true; });
spGui.addColor(controls, 'color').onChange(function (e) {
meshMaterial.color.setStyle(e)
});
spGui.add(controls, 'selectedMesh', ["cube", "sphere", "plane"]).onChange(function (e) { scene.remove(plane);
scene.remove(cube);
scene.remove(sphere); switch (e) {
case "cube":
scene.add(cube);
break;
case "sphere":
scene.add(sphere);
break;
case "plane":
scene.add(plane);
break; } scene.add(e);
}); spGui.add(controls, 'wrapAround').onChange(function (e) { meshMaterial.wrapAround = e;
meshMaterial.needsUpdate = true;
}); spGui.add(controls, 'wrapR', 0, 1).step(0.01).onChange(function (e) {
meshMaterial.wrapRGB.x = e;
}); spGui.add(controls, 'wrapG', 0, 1).step(0.01).onChange(function (e) {
meshMaterial.wrapRGB.y = e;
}); spGui.add(controls, 'wrapB', 0, 1).step(0.01).onChange(function (e) {
meshMaterial.wrapRGB.z = e; }); render(); function render() {
stats.update(); cube.rotation.y = step += 0.01;
plane.rotation.y = step;
sphere.rotation.y = step;
requestAnimationFrame(render);
renderer.render(scene, camera);
} function initStats() { var stats = new Stats(); stats.setMode(0); // 0: fps, 1: ms
stats.domElement.style.position = 'absolute';
stats.domElement.style.left = '0px';
stats.domElement.style.top = '0px'; document.getElementById("Stats-output").appendChild(stats.domElement); return stats;
}
}
window.onload = init;
</script>
</body>
</html>
