Java Tips - How to use ModelClip nodes

ModelClip nodes can clip visual objects in arbitrary ways. A ModelClip object defines a set of six clipping planes of arbitrary orientations in the local coordinate system. The clipping planes define halfspaces for which vertices are culled from rendering.


public class ModelClipExample extends JFrame {

  public ModelClipExample() {

    ...

  }



  public BranchGroup createSceneGraph() {

    BranchGroup objRoot = new BranchGroup();



    TransformGroup objSpin=new TransformGroup();

    objSpin.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);

    objRoot.addChild(objSpin);

    

    objSpin.addChild(new ColorCube(0.4));

    

    Alpha rotationAlpha=new Alpha(-1,4000);

    RotationInterpolator rotator=new RotationInterpolator(rotationAlpha,objSpin);

    

    //a bounding sphere specifies a region a behavior is active

    BoundingSphere bounds=new BoundingSphere();

    rotator.setSchedulingBounds(bounds);

    objSpin.addChild(rotator);

    

    //create a ModelClip object and set the clip planes

    ModelClip modelClip = new ModelClip();

    modelClip.setInfluencingBounds(bounds);  

    boolean enables[] = {true, true, false, false, false, false}; 

    modelClip.setEnables(enables);  

    modelClip.setPlane(0, new Vector4d(1, 0, 0, -0.1));

    modelClip.setPlane(1, new Vector4d(0,1,0,-0.1));

    objRoot.addChild(modelClip);  



    return objRoot;

  }

  

  public static void main(String[] args){

    ...

  }

}

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