我正在尝试使用 three.js 和 collada 加载程序加载 collada 文件。我正在利用 three.js 文档，但似乎无法让文件呈现在屏幕上。我想要实现的是将 collada 文件非常基本地导入到场景中，不需要动画。我收到的错误如下:
unhandled Surface prop: format_hint
Can not convert Transform of type lookat
XHR 输出显示 .dae 文件 100% 加载，我可以在浏览器中浏览到存储文件的位置并以 XML 形式查看它。我目前在 IIS 中将 mime 类型设置为 application/xml。
这是我当前的代码。我错过了什么？:
<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - loaders - collada loader</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<script src="scripts/three.min.js"></script>
<script src="scripts/ColladaLoader.js"></script>
<script src="scripts/jquery-2.1.4.min.js"></script>
<script src="scripts/bootstrap.min.js"></script>
<link href="css/bootstrap.min.css" rel="stylesheet" />
</head>
<body>
<h1>Box Example</h1>
<p>This example loads an collada file</p>
<div id="webGL-container"></div>
<script>
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
var renderer = new THREE.WebGLRenderer();
renderer.setClearColor(0xff0000);
renderer.setSize(window.innerWidth, window.innerHeight);
camera.position.x = 40;
camera.position.y = 40;
camera.position.z = 40;
// instantiate a loader
var loader = new THREE.ColladaLoader();
loader.load(
// resource URL
'models/box.dae',
// Function when resource is loaded
function (collada) {
scene.add(collada.scene);
},
// Function called when download progresses
function (xhr) {
console.log((xhr.loaded / xhr.total * 100) + '% loaded');
}
);
camera.lookAt(scene.position);
renderer.render(scene, camera);
$("#webGL-container").append(renderer.domElement);
</script>
</body>
</html>
根据提供的建议，这里是版本 2:
var scene;;
var camera;
var renderer;
var loader;
function init() {
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
renderer = new THREE.WebGLRenderer();
renderer.setClearColor();
renderer.setSize(window.innerWidth, window.innerHeight);
camera.position.x = 40;
camera.position.y = 40;
camera.position.z = 40;
// instantiate a loader
loader = new THREE.ColladaLoader();
loader.load(
// resource URL
'models/box.dae',
// Function when resource is loaded
function (collada) {
scene.add(collada.scene);
},
// Function called when download progresses
function (xhr) {
console.log((xhr.loaded / xhr.total * 100) + '% loaded');
}
);
camera.lookAt(scene.position);
$("#webGL-container").append(renderer.domElement);
};
function animate() {
requestAnimationFrame(animate);
renderer.render(scene, camera);
}
init();
animate();
更新 3:我已经能够渲染核心 .DAE 文件，但它缺少纹理(当前显示的盒子全黑):
var scene;
var camera;
var renderer;
var box;
// instantiate a loader
var loader = new THREE.ColladaLoader();
loader.options.convertUpAxis = true;
loader.load('models//box.dae', function (collada) {
box = collada.scene;
box.traverse(function (child) {
if (child instanceof THREE.SkinnedMesh) {
var animation = new THREE.Animation(child, child.geometry.animation);
animation.play();
}
});
box.scale.x = box.scale.y = box.scale.z = .2;
box.updateMatrix();
init();
animate();
});
function init() {
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
renderer = new THREE.WebGLRenderer();
renderer.setClearColor(0xdddddd);
renderer.setSize(window.innerWidth, window.innerHeight);
scene.add(box);
camera.position.x = 40;
camera.position.y = 40;
camera.position.z = 40;
camera.lookAt(scene.position);
}
function animate() {
requestAnimationFrame(animate);
renderer.render(scene, camera);
$("#webGL-container").append(renderer.domElement);
}
最佳答案
您正在点击 javascript 的异步加载。当您调用 renderer.render() 时，您的场景仍然是空的，因为模型尚未下载。将您拥有的代码放入 init() 函数中，然后创建一个 animate() 函数并这样调用它们:
function animate() {
requestAnimationFrame( animate );
renderer.render( scene, camera );
}
init();
animate();
scene、camera、renderer 变量应该全局化。
关于javascript - Three.js 中的基本 Collada 加载，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/31996941/