Red Green Girl : Object Model « 3D « Java

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Java » 3D » Object ModelScreenshots 
Red Green Girl
Red Green Girl


//Copyright 2001 Resplendent Technology Ltd. greg@resplendent.com

import java.applet.Applet;
import java.awt.FlowLayout;
import java.awt.GraphicsConfiguration;
import java.net.URL;
import java.util.Enumeration;
import java.util.Hashtable;

import javax.media.j3d.AmbientLight;
import javax.media.j3d.Appearance;
import javax.media.j3d.BoundingSphere;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Canvas3D;
import javax.media.j3d.DirectionalLight;
import javax.media.j3d.Material;
import javax.media.j3d.RenderingAttributes;
import javax.media.j3d.Shape3D;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.media.j3d.TransparencyAttributes;
import javax.vecmath.Color3f;
import javax.vecmath.Point3d;
import javax.vecmath.Vector3f;

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.behaviors.keyboard.KeyNavigatorBehavior;
import com.sun.j3d.utils.behaviors.mouse.MouseRotate;
import com.sun.j3d.utils.behaviors.mouse.MouseTranslate;
import com.sun.j3d.utils.universe.SimpleUniverse;

public class RedGreenGirl extends Applet {
    
    protected Canvas3D c1 = new Canvas3D(SimpleUniverse.getPreferredConfiguration());
   // private Canvas3D c2 = new Canvas3D(SimpleUniverse.getPreferredConfiguration());
    private static MainFrame mf;
    protected SimpleUniverse u = null;
    protected BranchGroup scene = null;
    protected String URLString = "http://www.java3d.org/renee.obj";
    protected float eyeOffset =0.03F;
    protected static int size=600;
    public void init() {
        setLayout(new FlowLayout());
        GraphicsConfiguration config =
           SimpleUniverse.getPreferredConfiguration();
        String v = getParameter("url");   
        if (v != null) { URLString = v; }
        c1.setSize(size, size);
        add(c1);
        scene = createSceneGraph(0);
        u = new SimpleUniverse(c1);
        // This will move the ViewPlatform back a bit so the
        // objects in the scene can be viewed.
        //u.getViewingPlatform().setNominalViewingTransform();
        u.addBranchGraph(scene);

    }
    public BranchGroup createSceneGraph(int i) {
        System.out.println("Creating scene for: "+URLString);
        // Create the root of the branch graph
        BranchGroup objRoot = new BranchGroup();
        try{
          Transform3D myTransform3D = new Transform3D();
          myTransform3D.setTranslation(new Vector3f(+0.0f,-0.15f,-3.6f));
          TransformGroup objTrans = new TransformGroup(myTransform3D);
            objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
            Transform3D t = new Transform3D();
          TransformGroup tg = new TransformGroup(t);
          tg.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
          tg.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
          objTrans.addChild(tg);
            URL url = new URL(URLString;
            ObjectFile f = new ObjectFile();
            f.setFlags(ObjectFile.RESIZE | ObjectFile.TRIANGULATE | ObjectFile.STRIPIFY);
            System.out.println"About to load" );
            
            Scene s = f.load(url);
            Transform3D myTrans = new Transform3D();
            myTrans.setTranslation(new Vector3f(eyeOffset, -eyeOffset, 0F));
            TransformGroup mytg = new TransformGroup(myTrans);
            //mytg.addChild(s.getSceneGroup());
            tg.addChild(mytg);
            Transform3D myTrans2 = new Transform3D();
            myTrans2.setTranslation(new Vector3f(-eyeOffset, +eyeOffset, 0F));
            TransformGroup mytg2 = new TransformGroup(myTrans2);
            //mytg2.addChild(s.getSceneGroup());
            Hashtable table = s.getNamedObjects()
            for (Enumeration e = table.keys() ; e.hasMoreElements() ;) {
            Object key = e.nextElement();
            System.out.println(key);
            Object obj = table.get(key);
            System.out.println(obj.getClass().getName());
            Shape3D shape  = (Shape3D)obj;
            //shape.setCapability(Shape3D.ALLOW_APPEARANCE_WRITE);
            Appearance ap = new Appearance();
            Color3f black = new Color3f(0.0f0.0f0.0f);
            Color3f red = new Color3f(0.7f.0f.15f);
            Color3f green = new Color3f(0f.7f.15f);
            ap.setMaterial(new Material(green,black, green, black, 1.0f));
            Appearance ap2 = new Appearance();
            ap2.setMaterial(new Material(red, black, red, black, 1.0f));
            float transparencyValue = 0.5f;
            TransparencyAttributes t_attr =
                new TransparencyAttributes(
                TransparencyAttributes.BLENDED,
                transparencyValue,
                TransparencyAttributes.BLEND_SRC_ALPHA,
                TransparencyAttributes.BLEND_ONE);
            ap2.setTransparencyAttributest_attr );
            ap2.setRenderingAttributesnew RenderingAttributes() );
            ap.setTransparencyAttributest_attr );
            ap.setRenderingAttributesnew RenderingAttributes() );
            // bg.addChild(ap);
            shape.setAppearance(ap);
            mytg2.addChild(new Shape3D(shape.getGeometry(),ap2));
            mytg.addChild(new Shape3D(shape.getGeometry(),ap));
        }
        tg.addChild(mytg2);
        System.out.println"Finished Loading" );
        BoundingSphere bounds =
          new BoundingSphere(new Point3d(0.0,0.0,0.0)100.0);
        Color3f light1Color = new Color3f(.9f0.9f0.9f);
        Vector3f light1Direction  = new Vector3f(4.0f, -7.0f, -12.0f);
        DirectionalLight light1
        new DirectionalLight(light1Color, light1Direction);
        light1.setInfluencingBounds(bounds);
        objTrans.addChild(light1);
              // Set up the ambient light
        Color3f ambientColor = new Color3f(1.0f.4f0.3f);
        AmbientLight ambientLightNode = new AmbientLight(ambientColor);
        ambientLightNode.setInfluencingBounds(bounds);
        objTrans.addChild(ambientLightNode);
        
        
        MouseRotate behavior = new MouseRotate();
      behavior.setTransformGroup(tg);
      objTrans.addChild(behavior);
        // Create the translate behavior node
      MouseTranslate behavior3 = new MouseTranslate();
      behavior3.setTransformGroup(tg);
      objTrans.addChild(behavior3);
      behavior3.setSchedulingBounds(bounds);
      
      KeyNavigatorBehavior keyNavBeh = new KeyNavigatorBehavior(tg);
    keyNavBeh.setSchedulingBounds(new BoundingSphere(
      new Point3d(),1000.0));
    objTrans.addChild(keyNavBeh);
    
      behavior.setSchedulingBounds(bounds);
        objRoot.addChild(objTrans);
        catch(Throwable t){System.out.println("Error: "+t);}
        return objRoot;
    }     
    public RedGreenGirl() {
    }
    public void destroy() {
        u.removeAllLocales();
    }
 
    public static void main(String[] args) {
       
        RedGreenGirl s = new RedGreenGirl();
        if (args.length > 0) {
            s.URLString = args[0];
        }
        mf = new MainFrame(s, size, size);
    }
}


           
       
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