Three.js无法加载纹理

Question

我有一个带增强现实的Three.js项目,现在我尝试加载带纹理的模型.出于某种原因,我的模型是黑色的,我没有纹理.我在blender中检查了框以导出图像,我也看到在t-rex(我正在使用的模型)的.js文件中它列出了纹理,但是我的应用程序不会加载它.

编辑(添加代码) 我用来加载模型的代码:

new THREE.JSONLoader().load("models/trex.json", function(geometry) {
                var material = new THREE.MeshFaceMaterial();

                var dino = new THREE.Mesh(geometry, material);

                dino.position.z = -50;
                dino.scale.x = dino.scale.y = dino.scale.z = 2;
                dino.updateMatrix();
                dino.overdraw = true;
                marker.object3d.add(dino);
            });

我将它添加到标记对象,因为我正在使用标记,如果我显示标记我想在标记上(或在其上方)绘制trex.

trex模型与此相同,但我在blender中打开它并使用最新版本的blender到three.js导出器:http://alteredqualia.com/three/examples/webgl_trex.html

我的trex.json文件看起来像这样:

{

    "metadata" :
    {
        "formatVersion" : 3.1,
        "generatedBy"   : "Blender 2.63 Exporter",
        "vertices"      : 23273,
        "faces"         : 23268,
        "normals"       : 20842,
        "colors"        : 0,
        "uvs"           : [11497],
        "materials"     : 1,
        "morphTargets"  : 0,
        "bones"         : 0
    },

    "scale" : 0.0500,

    "materials": [  {
    "DbgColor" : 15658734,
    "DbgIndex" : 0,
    "DbgName" : "Material.001",
    "blending" : "NormalBlending",
    "colorAmbient" : [0.2933282256126404, 0.2933282256126404, 0.2933282256126404],
    "colorDiffuse" : [0.2933282256126404, 0.2933282256126404, 0.2933282256126404],
    "colorSpecular" : [0.13438941538333893, 0.13438941538333893, 0.13438941538333893],
    "depthTest" : true,
    "depthWrite" : true,
    "mapDiffuse" : "trex_image_copy.png",
    "mapNormal" : "trex_image_bump.png",
    "mapNormalFactor" : 12.0,
    "mapSpecular" : "trex_image_spec.png",
    "shading" : "Phong",
    "specularCoef" : 511,
    "transparency" : 1.0,
    "transparent" : false,
    "vertexColors" : false
    },

    {
    "DbgColor" : 15597568,
    "DbgIndex" : 1,
    "DbgName" : "Material",
    "blending" : "NormalBlending",
    "colorAmbient" : [0.7257574200630188, 0.7257574200630188, 0.7257574200630188],
    "colorDiffuse" : [0.7257574200630188, 0.7257574200630188, 0.7257574200630188],
    "colorSpecular" : [0.0, 0.0, 0.0],
    "depthTest" : true,
    "depthWrite" : true,
    "mapDiffuse" : "trex_image_copy.png",
    "mapLight" : "trex_image_eye.png",
    "mapLightWrap" : ["repeat", "repeat"],
    "shading" : "Lambert",
    "specularCoef" : 1,
    "transparency" : 1.0,
    "transparent" : false,
    "vertexColors" : false
    },

    {
    "DbgColor" : 60928,
    "DbgIndex" : 2,
    "DbgName" : "Material",
    "blending" : "NormalBlending",
    "colorAmbient" : [0.7257574200630188, 0.7257574200630188, 0.7257574200630188],
    "colorDiffuse" : [0.7257574200630188, 0.7257574200630188, 0.7257574200630188],
    "colorSpecular" : [0.0, 0.0, 0.0],
    "depthTest" : true,
    "depthWrite" : true,
    "mapDiffuse" : "trex_image_copy.png",
    "mapLight" : "trex_image_eye.png",
    "mapLightWrap" : ["repeat", "repeat"],
    "shading" : "Lambert",
    "specularCoef" : 1,
    "transparency" : 1.0,
    "transparent" : false,
    "vertexColors" : false
    }],

    "vertices": 

我尝试绘制一个框,然后添加纹理,但有效但从json格式加载文件,然后显示纹理不起作用.

非常感谢!

Answer 1

我认为你正在寻找的是从你的json加载纹理/材料.JSONLoader实际上为您处理.相应的材料作为loader-callback的第二个参数返回.这当然只有在json持有材料数据时才会起作用(在你的情况下确实如此).

new THREE.JSONLoader().load("models/trex.json", function(geometry, materials) {
     var material = new THREE.MeshFaceMaterial(materials);
     var dino = new THREE.Mesh(geometry, material);

     dino.position.z = -50;
     dino.scale.x = dino.scale.y = dino.scale.z = 2;
     dino.updateMatrix();
     dino.overdraw = true;
     marker.object3d.add(dino);
 });