使用Three.js显示Blender导入网格中的颜色问题

Question

我正尝试使用Three.js显示从搅拌机导入的粘贴多维数据集。

我使用的是Three.js和Blender 2.78a的最新版本。

我开始制作我的立方体对象;就像这样： https://www.jonathan-petitcolas.com/2015/07/27/importing-blender-modelized-mesh-in-threejs.html 但我有不同/更粘的立方体。

我上面在搅拌机3D对象创建，然后，使用three.js所的.js出口导出的网格。

这里是marmelab.json文件。

{ 
    "metadata":{ 
     "generator":"io_three", 
     "faces":6, 
     "type":"Geometry", 
     "version":3, 
     "materials":1, 
     "normals":6, 
     "vertices":24, 
     "uvs":1 
    }, 
    "faces":[43,8,10,12,14,0,0,1,2,3,0,0,0,0,43,16,18,20,22,0,3,0,1,2,1,1,1,1,43,9,15,19,17,0,3,0,1,2,2,2,2,2,43,1,13,21,5,0,3,0,1,2,3,3,3,3,43,3,11,23,7,0,3,0,1,2,4,4,4,4,43,2,0,4,6,0,3,0,1,2,5,5,5,5], 
    "materials":[{ 
     "DbgIndex":0, 
     "blending":"NormalBlending", 
     "opacity":1, 
     "depthWrite":true, 
     "visible":true, 
     "transparent":false, 
     "colorEmissive":[0,0,0], 
     "colorDiffuse":[0.8,0.432941,0], 
     "wireframe":false, 
     "DbgName":"01 - Default", 
     "specularCoef":11, 
     "colorSpecular":[0.18,0.18,0.18], 
     "DbgColor":15658734, 
     "depthTest":true, 
     "shading":"phong" 
    }], 
    "normals":[0,0,1,0,0,-1,0,1,-0,1,0,-0,0,-1,-0,-1,0,-0], 
    "name":"Untitled.001Geometry.1", 
    "vertices":[-0.307576,-0,-0.433258,-0.002776,-0,-0.433258,-0.307576,-0,-0.738058,-0.002776,-0,-0.738058,-0.307576,0.3048,-0.433258,-0.002776,0.3048,-0.433258,-0.307576,0.3048,-0.738058,-0.002776,0.3048,-0.738058,-0.307576,-0,-0.433258,-0.307576,-0,-0.433258,-0.307576,-0,-0.738058,-0.307576,-0,-0.738058,-0.002776,-0,-0.738058,-0.002776,-0,-0.738058,-0.002776,-0,-0.433258,-0.002776,-0,-0.433258,-0.307576,0.3048,-0.433258,-0.307576,0.3048,-0.433258,-0.002776,0.3048,-0.433258,-0.002776,0.3048,-0.433258,-0.002776,0.3048,-0.738058,-0.002776,0.3048,-0.738058,-0.307576,0.3048,-0.738058,-0.307576,0.3048,-0.738058], 
    "uvs":[[1,0,1,1,0,1,0,0]] 
} 

JavaScript来加载网和显示

var scene, camera, renderer; 

var WIDTH = window.innerWidth; 
var HEIGHT = window.innerHeight; 

var SPEED = 0.01; 

function init() { 
    scene = new THREE.Scene(); 

    initMesh(); 
    initCamera(); 
    initLights(); 
    initRenderer(); 

    document.body.appendChild(renderer.domElement); 
} 

function initCamera() { 
    camera = new THREE.PerspectiveCamera(70, WIDTH/HEIGHT, 1, 10); 
    camera.position.set(0, 3.5, 5); 
    camera.lookAt(scene.position); 
} 


function initRenderer() { 
    renderer = new THREE.WebGLRenderer({ antialias: true }); 
    renderer.setSize(WIDTH, HEIGHT); 
} 

function initLights() { 
    var light = new THREE.AmbientLight(0xffffff); 
    scene.add(light); 
} 

var mesh = null; 
function initMesh() { 
    var loader = new THREE.JSONLoader(); 
    loader.load('./marmelab.json', function(geometry, materials) { 
     mesh = new THREE.Mesh(geometry, new THREE.MeshFaceMaterial(materials)); 
     mesh.scale.x = mesh.scale.y = mesh.scale.z = 0.75; 
     mesh.translation = THREE.GeometryUtils.center(geometry); 
     scene.add(mesh); 
    }); 
} 

function rotateMesh() { 
    if (!mesh) { 
     return; 
    } 

    mesh.rotation.x -= SPEED * 2; 
    mesh.rotation.y -= SPEED; 
    mesh.rotation.z -= SPEED * 3; 
} 

function render() { 
    requestAnimationFrame(render); 
    rotateMesh(); 
    renderer.render(scene, camera); 
} 

init(); 
render(); 

然而，在浏览器中的形状rtained;但颜色是白色的。

我在这里错过了什么？

非常感谢你提前。

Answer 1

编辑

我更新了Plunker与three.js的最新版本，它现在与上述未经编辑的json工程 - http://plnkr.co/edit/RwkgzrvfqzYlWtShhpjt?p=preview

还用我自己的成功测试，更复杂，型号 - http://plnkr.co/edit/SWXv1GyKIGryORiNYlgx?p=preview

该问题是由于使用旧版本的three.js。我最初使用您链接到的网站提供的版本进行测试。鉴于结果，我怀疑你可能做了同样的事情。

在版本70的某处，他们更改了导出器，不再导出colorAmbient属性，而旧版本的Three.js需要它。