Re: Java 3D to PNG file?

Much in the same way you save a 2D image to a file...
http://java.sun.com/docs/books/tutorial/2d/images/saveimage.html

Then apply that to 3D...
Canvas3D.setOffScreeBuffer(ImageComponent2D buffer);
// render image
...

On Sat, May 3, 2008 at 12:50 PM, Richard O. Hammer <[email protected]> wrote:
> I am creating a scene using the Java3D API.  I want to write this
>  picture into a PNG file rather than display it in a Window.  How can I
>  do this?
>
>  I am starting with the class below, HelloJava3Db, distributed by Sun
>  with their 3D tutorial.  It makes a picture of a colored cube and shows
>  it in a Window (Frame or Applet).  But I can't figure out how to write
>  that picture into an image file.
>
>  I've been looking for routes using Canvas, java.awt.image.BufferedImage
>  and javax.imageio.ImageIO, but have not found the trick yet.
>
>  Thank you,
>  Rich Hammer
>
>
>
>  /* Copyright (c) 1996-2000 Sun Microsystems, Inc. All Rights Reserved.
>     blah, blah
>   */
>
>  import java.applet.Applet;
>  import java.awt.BorderLayout;
>  import java.awt.GraphicsConfiguration;
>
>  import javax.media.j3d.BranchGroup;
>  import javax.media.j3d.Canvas3D;
>  import javax.media.j3d.Transform3D;
>  import javax.media.j3d.TransformGroup;
>
>  import com.sun.j3d.utils.applet.MainFrame;
>  import com.sun.j3d.utils.geometry.ColorCube;
>  import com.sun.j3d.utils.universe.SimpleUniverse;
>
>  // HelloJava3Db renders a single, rotated cube.
>
>  public class HelloJava3Db extends Applet {
>    public BranchGroup createSceneGraph() {
>      // Create the root of the branch graph
>      BranchGroup objRoot = new BranchGroup();
>
>      // rotate object has composited transformation matrix
>      Transform3D rotate = new Transform3D();
>      Transform3D tempRotate = new Transform3D();
>
>      rotate.rotX(Math.PI / 4.0d);
>      tempRotate.rotY(Math.PI / 5.0d);
>      rotate.mul(tempRotate);
>
>      TransformGroup objRotate = new TransformGroup(rotate);
>
>      objRoot.addChild(objRotate);
>      objRotate.addChild(new ColorCube(0.4));
>      // Let Java 3D perform optimizations on this scene graph.
>      objRoot.compile();
>
>      return objRoot;
>    } // end of CreateSceneGraph method of HelloJava3Db
>
>    // Create a simple scene and attach it to the virtual universe
>
>    public HelloJava3Db() {
>      setLayout(new BorderLayout());
>      GraphicsConfiguration config =
>  SimpleUniverse.getPreferredConfiguration();
>
>      Canvas3D canvas3D = new Canvas3D(config);
>      add("Center", canvas3D);
>
>      BranchGroup scene = createSceneGraph();
>
>      // SimpleUniverse is a Convenience Utility class
>      SimpleUniverse simpleU = new SimpleUniverse(canvas3D);
>
>      // This will move the ViewPlatform back a bit so the
>      // objects in the scene can be viewed.
>      simpleU.getViewingPlatform().setNominalViewingTransform();
>
>      simpleU.addBranchGraph(scene);
>    } // end of HelloJava3Db (constructor)
>
>    // The following allows this to be run as an application
>    // as well as an applet
>
>    public static void main(String[] args) {
>      new MainFrame(new HelloJava3Db(), 256, 256);
>    } // end of main (method of HelloJava3Db)
>
>  } // end of class HelloJava3Db
>
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-- 
Robert Dale