three.js：解决obj模型导入后材质为黑色

模型加载完成加入scene之前，执行下面函数

_ChangeMaterialEmissive(obj)scene.add(obj);

函数体

    function _ChangeMaterialEmissive(parent) {parent.traverse(function (obj) {if(obj instanceof THREE.Mesh){obj.material.emissive=new THREE.Color(1,1,1);obj.material.emissiveIntensity=1;obj.material.emissiveMap=obj.material.map;}});}