threejs不OBJMTLLoader

Question

工作線框正在使用OBJMTLLoader加載我的對象threejs，線框控制單獨工作OBJLoader，但對於OBJMTLLoader它不工作

var loader = new THREE.OBJMTLLoader(); 
       loader.load('obj/male02/male02.obj', 'obj/male02/male02_dds.mtl', function (object) { 
        object.children[0].geometry.computeFaceNormals(); 
        var geometry = object.children[0].geometry; 
          console.log(geometry); 
        THREE.GeometryUtils.center(geometry); 
        geometry.dynamic = true; 
        var material = new THREE.MeshLambertMaterial({color: 0xffffff, shading: THREE.FlatShading, vertexColors: THREE.VertexColors }); 
        mesh = new THREE.Mesh(geometry, material); 
        scene.add(mesh); 
       }); 



function wireframe(){ 
       //alert('hhhhhh'); 
       mesh.material.wireframe = true; 
       mesh.material.color = new THREE.Color(0x6893DE ); 
       } 

，但它引起以下錯誤，所以我的模型沒有顯示在查看器上，所以在這裏我想知道我們可以在任何類型的3D模型上創建線框？

object.children [0] .geometry是未定義

Answer 1

即使OBJMTLLoader返回THREE.Object3D對象，它確實有.children，你不應該假設.children爲THREE.Mesh類型。所以你應該實際上traverse()THREE.Object3D爲了找到THREE.Mesh。

object.traverse(function (child) { 

if (child instanceof THREE.Mesh) 

    // do something with the geometry 

});