将图像加载到立方体three.js [英] load image to a cube three.js

问题描述

嗨我试图将图像加载到多维数据集但我不知道出了什么问题。立方体很好但不是图像。
以下是链接： http://diegoddox.bitbucket.org/loadimage/

Hi I trying to load a image to a cube but i don't know what is wrong. The cube is fine but not the image. Here is the link: http://diegoddox.bitbucket.org/loadimage/

var scene, camera, renderer;
renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.setClearColorHex(0xeeeeee);
renderer.clear();
document.body.appendChild(renderer.domElement);
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera( 70, window.innerWidth/window.innerHeight, 0.1, 5000 );
camera.position.z = 800;
camera.lookAt(scene.position);
scene.add(camera);
var material = new THREE.MeshBasicMaterial({
    map: THREE.ImageUtils.loadTexture("img.jpg")
});
material.map.needsUpdate = true; 
var cube = new THREE.Mesh(new THREE.CubeGeometry(300, 300, 300), material);
cube.overdraw = true;
cube.position.x = 0;
cube.rotation.x = -20;
cube.rotation.z = -2;
scene.add(cube);
renderer.render(scene, camera);

推荐答案

图像加载是异步的。

发生的事情是你的单个 render（）调用是在图像加载完成之前发生的。

What is happening is that your single render() call is occurring before the image finishes loading.

输入

renderer.render(scene, camera);

进入控制台，你会看到纹理渲染。

into the Console, and you will see that the texture renders.

您需要在 loadTexture（）函数中添加回调并调用 render（）从那里，或者，您可以使用 requestAnimationFrame（）添加动画循环。

You need to add a callback to your loadTexture() function and call render() from there, or, alternatively, you can add an animation loop using requestAnimationFrame().

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