three.js如何加载带材质的obj外部模型
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从r73版本之后OBJMTLLoader.js就被删除了，目测用MTLLoader.js代替了，刚开始学这个自己整不出来,,，求大神帖个可以运行的源码，很简单的就好！十分感谢！
参考技术A <!DOCTYPE html><html>
<head lang="en">
<meta charset="UTF-8">
<title>Lession1</title>
<script src="js/three.js"></script>
<script src="js/three.min.js"></script>
</head>
<body>
<div id="container"></div>
<script src="js/three.min.js"></script>
<script src="js/loaders/OBJLoader.js"></script>
<script>
var container;
var camera, scene, renderer;
var mouseX = 0, mouseY = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
init();
animate();
function init()
container = document.createElement( 'div' );
document.body.appendChild( container );
camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 2000 );
camera.position.z = 10;
// scene
scene = new THREE.Scene();
var ambient = new THREE.AmbientLight( 0x101030 );
scene.add( ambient );
var directionalLight = new THREE.DirectionalLight( 0xffeedd );
directionalLight.position.set( 0, 0, 1 );
scene.add( directionalLight );
// texture
var manager = new THREE.LoadingManager();
manager.onProgress = function ( item, loaded, total )
console.log( item, loaded, total );
;
var texture = new THREE.Texture();
var onProgress = function ( xhr )
if ( xhr.lengthComputable )
var percentComplete = xhr.loaded / xhr.total * 100;
console.log( Math.round(percentComplete, 2) + '% downloaded' );
;
var onError = function ( xhr )
;
var loader = new THREE.ImageLoader( manager );
loader.load( 'car.jpg', function ( image )
texture.image = image;
texture.needsUpdate = true;
);
// model
var loader = new THREE.OBJLoader( manager );
loader.load( 'car.obj', function ( object )
object.traverse( function ( child )
if ( child instanceof THREE.Mesh )
child.material.map = texture;
);
object.scale.x = object.scale.y = object.scale.z = 10;
object.updateMatrix();
object.position.y = -3;
scene.add( object );
, onProgress, onError );
//
renderer = new THREE.WebGLRenderer();
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
//
window.addEventListener( 'resize', onWindowResize, false );
function onWindowResize()
windowHalfX = window.innerWidth / 2;
windowHalfY = window.innerHeight / 2;
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
function onDocumentMouseMove( event )
mouseX = ( event.clientX - windowHalfX ) / 2;
mouseY = ( event.clientY - windowHalfY ) / 2;
//
function animate()
requestAnimationFrame( animate );
render();
function render()
camera.position.x += ( mouseX - camera.position.x ) * .5;
camera.position.y += ( - mouseY - camera.position.y ) * .5;
camera.lookAt( scene.position );
renderer.render( scene, camera );
</script>
</body>
</html>本回答被提问者和网友采纳
加载 Collada (dae) 模型时如何在 THREE.js 中设置材质？
【中文标题】加载 Collada (dae) 模型时如何在 THREE.js 中设置材质？【英文标题】：How to setup materials in THREE.js when loading Collada (dae) models? 【发布时间】：2012-01-07 01:49:41 【问题描述】：我有以下代码：
new THREE.ColladaLoader().load('models/cylinder.dae',
function(collada)
var model = collada.scene;
model.scale.set(10.0, 10.0, 10.0);
// attempt to set a material - doesn't work...
collada.dae.materials[0] = new THREE.MeshBasicMaterial( color: 0xff0000, wireframe: true );
scene.add(model);
);
感谢您的帮助。
【问题讨论】：
【参考方案1】：var loader = new THREE.ColladaLoader();
loader.options.convertUpAxis = true;
loader.load( './models/cylinder.dae',function colladaReady( collada )
model = collada.scene;
model_geometry = collada.scene.children[ 0 ].geometry;
model_material = collada.scene.children[ 0 ].material;
model.scale.set(10.0, 10.0, 10.0);
model.updateMatrix();
);
如果您将 model_material 设为“未定义”，请查看 collada 对象
console.log(collada);
有时孩子里面有孩子，所以你可能必须这样做：
model_material = collada.scene.children[ 0 ].children[ 0 ].material;
查看collada模型，然后进行相应的修改。
【讨论】：
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