为什么我的物体的纹理没有显示出来？

enter image description here

现在，当我把它用Java3D的，这是我所得到的显示：

enter image description here

为什么我的纹理显示不出来在java中？这里是我的显示椅子代码：

package com; 

import java.applet.Applet; 
import java.awt.BorderLayout; 
import java.awt.Frame; 
import java.awt.GraphicsConfiguration; 

import javax.media.j3d.Alpha; 
import javax.media.j3d.Appearance; 
import javax.media.j3d.Background; 
import javax.media.j3d.BoundingSphere; 
import javax.media.j3d.BranchGroup; 
import javax.media.j3d.Canvas3D; 
import javax.media.j3d.DirectionalLight; 
import javax.media.j3d.RotationInterpolator; 
import javax.media.j3d.Transform3D; 
import javax.media.j3d.TransformGroup; 
import javax.vecmath.Color3f; 
import javax.vecmath.Point3d; 
import javax.vecmath.Vector3f; 

import com.microcrowd.loader.java3d.max3ds.Loader3DS; 
import com.sun.j3d.loaders.Scene; 
import com.sun.j3d.loaders.objectfile.ObjectFile; 
import com.sun.j3d.utils.applet.MainFrame; 
import com.sun.j3d.utils.geometry.ColorCube; 
import com.sun.j3d.utils.universe.SimpleUniverse; 

public class LoadAnObject extends Applet 
{ 
    public LoadAnObject() 
    { 
     setLayout(new BorderLayout()); 
     GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration(); 
     Canvas3D canvas = new Canvas3D(config); 
     add("Center", canvas); 

     BranchGroup content = getScene(); 
     content.compile(); 

     SimpleUniverse universe = new SimpleUniverse(canvas); 
     universe.getViewingPlatform().setNominalViewingTransform(); 
     universe.addBranchGraph(content); 
    } 

    public BranchGroup getScene() 
    { 
     BranchGroup group = new BranchGroup(); 

     Loader3DS loader = new Loader3DS(); 

     Scene scene = null; 

     try 
     { 
      scene = loader.load("/Users/John/ArtOfIllusion/Chair.3ds"); 
     }catch(Exception e){e.printStackTrace();} 

     TransformGroup rotateGroup = new TransformGroup(); 
     Transform3D rotate = new Transform3D(); 
     rotate.rotX(- Math.PI/8); 
     rotateGroup.setTransform(rotate); 
     rotateGroup.addChild(scene.getSceneGroup()); 

     TransformGroup objSpin = new TransformGroup(); 
     objSpin.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); 
     //objSpin.addChild(new ColorCube(.5)); 
     Alpha rotationAlpha = new Alpha(-1, 4000); 
     RotationInterpolator rotator = new RotationInterpolator(rotationAlpha, objSpin); 

     BoundingSphere boundSphere = new BoundingSphere(new Point3d(0.0f, 0.0f, 0.0f), 200); 
     rotator.setSchedulingBounds(boundSphere); 
     objSpin.addChild(rotator); 
     objSpin.addChild(rotateGroup); 

     TransformGroup moveGroup = new TransformGroup(); 
     Transform3D move = new Transform3D(); 
     move.setTranslation(new Vector3f(0.0f, 0.0f, -20.0f)); 
     moveGroup.setTransform(move); 
     moveGroup.addChild(objSpin); 

     group.addChild(moveGroup); 

     Background background = new Background(0.0f, 1.0f, 1.0f); 
     background.setApplicationBounds(new BoundingSphere()); 
     group.addChild(background); 

     Color3f light1Color = new Color3f(1.0f, 1.0f, 1.0f); 
     BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0); 
     Vector3f light1Direction = new Vector3f(0, 0, 10); 
     DirectionalLight light1 = new DirectionalLight(light1Color, light1Direction); 
     light1.setInfluencingBounds(bounds); 
     group.addChild(light1); 

     return group; 
    } 

    public static void main(String args[]) 
    { 
     Frame frame = new MainFrame(new LoadAnObject(), 256, 256); 
    } 
}

我正在使用的文件格式是.3DS，这里是我从拿到装载机：