Java3D VertexUpdater

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#1

hi all,

you probably all know the Java3D GeometryUpdater for modifying GeometryArrays at runtime. Being sick of writng simple updaters twice for the diffrent subclasses of GeometryArray and its vertexFormats, I wrote one to handle all ( http://games-net.de/files/zero_java3d_gvu.zip ):


class GeometryVertexUpdater implements GeometryUpdater {

    public VertexUpdater getVertexUpdater();
    
    public void setVertexUpdater(VertexUpdater vertexUpdater):

    public void updateData(Geometry geometry);

}

loops through all vertices and calls the implented method of:


public interface VertexUpdater {
    
    public void updateVertex(int index, Vertex vertex);
    
}

in this method you can modify the data of the Vertex:


public class Vertex {
    public final static int COORDINATE;
    public final static int NORMAL;
    public final static int COLOR_3;
    public final static int COLOR_4;
    public final static int TEXTURE_COORDINATE_2;
    public final static int TEXTURE_COORDINATE_3;
    public final static int TEXTURE_COORDINATE_4;
    
    
    public Vertex(int vertexFormat);

    public Vertex(int vertexFormat, int texCoordSetCount);
    
    public int getVertexFormat();
    
    public int getTexCoordSetCount();
    
    public float[] getCoordinate();
    
    public float[] getNormal();
    
    public float[] getColor();
    
    public float[] getTextureCoordinate(int texCoordSet);

}

Note:
be sure to have set the Capabilities ALLOW_COUNT_READ, ALLOW_FORMAT_READ and READ/WRITE ones for the vertexFormat.

of course the isn’t a performant as writing and updater only for a special type of Geometry, but hey you can use it only as a algorithm tester, …

I would be happy receiving feedback, improvement ideas, or about my mistakes (hacked it today, no time for testing ;))