javascript - Three.js-更新纹理

如何获取导出的json文件具有的数据？例如，我有这种材料，我想更改mapDiffuse值，从而更改纹理。我该如何在javascript函数中执行此操作？

"materials": [{
    "transparent": false,
    "DbgIndex": 0,
    "mapDiffuseRepeat": [1,1],
    "mapDiffuseAnisotropy": 1,
    "specularCoef": 50,
    "colorEmissive": [0,0,0],
    "colorDiffuse": [0.64,0.64,0.64],
    "wireframe": false,
    "visible": true,
    "blending": "NormalBlending",
    "DbgColor": 15658734,
    "mapDiffuse": "w.jpg",
    "DbgName": "Material.005",
    "opacity": 1,
    "depthWrite": true,
    "mapDiffuseWrap": ["RepeatWrapping","RepeatWrapping"],
    "depthTest": true,
    "shading": "phong",
    "colorSpecular": [0.5,0.5,0.5],
    "colorAmbient": [0.64,0.64,0.64]}, another 4 same materials (different names)

我不退出获取this reference，因此将不胜感激。
谢谢！

最佳答案

我找到了..

mesh.material.materials [4] .map = THREE.ImageUtils.loadTexture（“ image.jpg”）;
mesh.material.materials [4] .needsUpdate = true;