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javascript - 向 json 对象添加纹理 - Three.js

转载 作者:行者123 更新时间:2023-12-03 05:22:46 24 4
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我正在尝试向我从 clara.io 导出的 3D Dog JSON 模型添加纹理。我已经使用 Ojectloader 加载 3D 模型,然后尝试使用 Textureloader 加载纹理,但纹理似乎没有加载到模型上。

也许我的代码是错误的,或者是在错误的地方。我曾尝试查看人们如何做到这一点的其他示例,但运气不佳。正如我所说,问题是纹理似乎没有将图像加载到模型上。 Chrome 的控制台上也没有错误。

如果有人能提供帮助,谢谢。

 <!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - loaders - Clara.io JSON loader</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
font-family: Monospace;
background-color: #000;
color: #fff;
margin: 0px;
overflow: hidden;
}
#info {
color: #fff;
position: absolute;
top: 10px;
width: 100%;
text-align: center;
z-index: 100;
display:block;
}
#info a, .button { color: #f00; font-weight: bold; text-decoration: underline; cursor: pointer }
</style>
</head>

<body>

<script src="three.js"></script>
<script src="Detector.js"></script>
<script src="stats.min.js"></script>
<script src="UnpackDepthRGBAShader.js"></script>
<script src="ShadowMapViewer.js"></script>
<script src="dat.gui.min.js"></script>
<script src="OrbitControls.js"></script>

<script>
var container, stats;
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 = 4;
// scene
scene = new THREE.Scene();
var ambient = new THREE.AmbientLight( 0x444444 );
scene.add( ambient );
var directionalLight = new THREE.DirectionalLight( 0xffeedd );
directionalLight.position.set( 0, 0, 1 ).normalize();
scene.add( directionalLight );

//new attempt at a texture and object loader
var loader = new THREE.TextureLoader();
loader.load("dogtexture.jpg", function ( texture ) {
var material = new THREE.MeshBasicMaterial({ map: texture });
var objectLoader = new THREE.ObjectLoader();
objectLoader.load( "blue-dog1.json", function( obj, texture ) {
obj.scale.set( .04, .04, .04);
scene.add( obj,texture );
});
});


// BEGIN Clara.io JSON loader code
//var objectLoader = new THREE.ObjectLoader();
//objectLoader.load("blue-dog.json", function ( obj ) {
//obj.scale.set( .045, .045, .045);
//scene.add( obj );
//});

//var loader = new THREE.TextureLoader();
//loader.load("dogtexture.jpg", function ( texture ) {
// do something with the texture
//var material = new THREE.MeshNormalMaterial( { map: //texture} );
//} );

// END Clara.io JSON loader code
renderer = new THREE.WebGLRenderer();
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );

}

//
function animate() {
requestAnimationFrame( animate );
render();
}
function render() {
camera.position.x = 400;//vertical camera angle
camera.position.y = 300;
camera.position.z = 150;

camera.lookAt( scene.position );
renderer.render( scene, camera );
}
</script>

</body>
</html>

最佳答案

MeshNormalMaterial 可能不是您想要的 Material 类型。
尝试 MeshBasicMaterialMeshPhongMaterial

MeshNormalMaterial 的描述取自 here

A material that maps the normal vectors to RGB colors.

向下滚动 three.js docs 的左侧查看其他类型的可用 Material 。

编辑..
你永远不会将 Material 添加到物体上..

编辑..
添加一些示例代码。我将使用 ObjectLoader 因为你似乎可以使用它。

// Create material for later use.
var material = new THREE.MeshBasicMaterial();
// Create ObjectLoader.
var objectLoader = new THREE.ObjectLoader();
// Initiate load of model
objectLoader.load("blue-dog1.json", function(obj) {
// The documentation for ObjectLoader says it can't load geometries.. confusing (I have never used the ObjectLoader class)
// But since you say it is working, we'll run with it.
// obj will be an Object3D, so we must traverse it's children and add the material (I think).
obj.traverse(function(child) {
if(child instanceof THREE.Mesh) {
child.material = material;
}
}
// Now the Object is loaded and the material is applied..
// Add it to the scene (maybe do this after the texture is loaded?).
scene.add(obj);
// Load the texture.
var loader = new THREE.TextureLoader();
loader.load("dogtexture.jpg", function(texture) {
// Apply texture to material.
material.map = texture;
// Maybe this is needed.
material.needsUpdate = true;
}
}

此代码未经测试,可能存在一些关闭问题,但它应该让您走上正轨。
如果您无法使其正常工作,请尝试使用 JSONLoader 类搜索示例。

关于javascript - 向 json 对象添加纹理 - Three.js,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/41306735/

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