Three.js插入图像

Three.js insert image

本文关键字：图像 插入 js Three      更新时间：2023-09-26

我试图在PlaneGeometry网格上附加一个简单的图像，但似乎不起作用。

window.onload = function(){

        var renderer = new THREE.WebGLRenderer();
        renderer.setSize(window.innerWidth, window.innerHeight);
        document.body.appendChild(renderer.domElement);
        // camera
        var camera = new THREE.PerspectiveCamera(95, window.innerWidth / window.innerHeight, 1, 1000);
        camera.position.y = -250;
        camera.position.z = 400;
        camera.rotation.x = 45 * (Math.PI / 180);
        // scene
        var scene = new THREE.Scene();
        var img = new THREE.MeshLambertMaterial({
            map:THREE.ImageUtils.loadTexture('img/front.jpg')
        });
        // plane
        var plane = new THREE.Mesh(new THREE.PlaneGeometry(200, 200),img);
        plane.overdraw = true;
        scene.add(plane);
         // add subtle ambient lighting
        var ambientLight = new THREE.AmbientLight(0x555555);
        scene.add(ambientLight);
        // add directional light source
        var directionalLight = new THREE.DirectionalLight(0xffffff);
        directionalLight.position.set(1, 1, 1).normalize();
        scene.add(directionalLight);
        // create wrapper object that contains three.js objects
        var three = {
            renderer: renderer,
            camera: camera,
            scene: scene,
            plane: plane
        };
        renderer.render(scene,camera);
    };

这是我的完整javascript文件，画布为580x300

我每次跑步都只看到一个黑色方块。有什么想法吗？谢谢

这是我给那些需要它的人的参考：

http://www.html5canvastutorials.com/webgl/html5-canvas-webgl-texture-with-three-js/

从github下载最新标签并播放示例后，很明显CORS是罪魁祸首。如果我打开Chrome开发工具并查看控制台，会出现许多错误消息：

Cross-origin image load denied by Cross-Origin Resource Sharing policy.

如果您正在使用Chrome，请使用标志-允许从文件访问文件

铬17.0.963.79测试。

window.onload = function(){
    var renderer = new THREE.WebGLRenderer();
    renderer.setSize(window.innerWidth, window.innerHeight);
    document.body.appendChild(renderer.domElement);
    // camera 
    var camera = new THREE.PerspectiveCamera(95, window.innerWidth / window.innerHeight, 1, 1000); 
    camera.position.y = -250; 
    camera.position.z = 400; 
    camera.rotation.x = 45 * (Math.PI / 180); 
    // scene 
    var scene = new THREE.Scene();
    scene.add(camera); //ADDED
    var img = new THREE.MeshBasicMaterial({ //CHANGED to MeshBasicMaterial
        map:THREE.ImageUtils.loadTexture('img/front.jpg')
    });
    img.map.needsUpdate = true; //ADDED
    // plane
    var plane = new THREE.Mesh(new THREE.PlaneGeometry(200, 200),img);
    plane.overdraw = true;
    scene.add(plane);
     // add subtle ambient lighting
    var ambientLight = new THREE.AmbientLight(0x555555);
    scene.add(ambientLight);
    // add directional light source
    var directionalLight = new THREE.DirectionalLight(0xffffff);
    directionalLight.position.set(1, 1, 1).normalize();
    scene.add(directionalLight);
    // create wrapper object that contains three.js objects
    var three = {
        renderer: renderer,
        camera: camera,
        scene: scene,
        plane: plane
    };
    renderer.render(scene,camera);
};

更改平面的旋转。

试试这个。

Plane.rotation.x = (-Math.PI / 2);
Plane.rotation.z = (-Math.PI / 2);
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