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 ):
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| 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:
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| public interface VertexUpdater {
public void updateVertex(int index, Vertex vertex);
} |
in this method you can modify the data of the Vertex:
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| 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
)
