Hi,
I am creating an IndexedTriangleStripArray using the following method:
int vertexCount = points.length;
int vertexFormat = GeometryArray.COORDINATES |
GeometryArray.NORMALS |
GeometryArray.TEXTURE_COORDINATE_2 ;
int indexCount = indicesArray.length;
IndexedTriangleStripArray itsArray =
new IndexedTriangleStripArray (vertexCount, vertexFormat,
indexCount,
stripCount);
itsArray.setCapability (GeometryArray.ALLOW_COUNT_READ);
itsArray.setCapability (GeometryArray.ALLOW_FORMAT_READ);
itsArray.setCapability (GeometryArray.ALLOW_COORDINATE_READ);
itsArray.setCapability (GeometryArray.ALLOW_COORDINATE_WRITE);
itsArray.setCapability
(IndexedGeometryArray.ALLOW_COORDINATE_INDEX_READ);
itsArray.setCoordinates (0, points);
itsArray.setNormals (0, normalsArray);
itsArray.setTextureCoordinates (0, 0, texCoordsArray);
itsArray.setCoordinateIndices (0, indicesArray);
itsArray.setNormalIndices (0, indicesArray);
itsArray.setTextureCoordinateIndices(0, 0, indicesArray);
This works perfectly fine.
Now, I want to make this geometry to work byReference,
so, I change this to:
int vertexCount = points.length;
//int vertexFormat = GeometryArray.COORDINATES;
int vertexFormat = GeometryArray.COORDINATES |
GeometryArray.NORMALS |
GeometryArray.BY_REFERENCE |
GeometryArray.TEXTURE_COORDINATE_2 ;
int indexCount = indicesArray.length;
IndexedTriangleStripArray itsArray =
new IndexedTriangleStripArray (vertexCount, vertexFormat,
indexCount,
stripCount);
itsArray.setCapability (GeometryArray.ALLOW_COUNT_READ);
itsArray.setCapability (GeometryArray.ALLOW_FORMAT_READ);
itsArray.setCapability (GeometryArray.ALLOW_COORDINATE_READ);
itsArray.setCapability (GeometryArray.ALLOW_COORDINATE_WRITE);
itsArray.setCapability (GeometryArray.ALLOW_REF_DATA_READ);
itsArray.setCapability (GeometryArray.ALLOW_REF_DATA_WRITE);
itsArray.setCapability
(IndexedGeometryArray.ALLOW_COORDINATE_INDEX_READ);
itsArray.setCoordRef3d (points);
itsArray.setNormalRef3f (normalsArray);
itsArray.setTexCoordRef2f (0, texCoordsArray);
itsArray.setCoordinateIndices (0, indicesArray);
itsArray.setNormalIndices (0, indicesArray);
itsArray.setTextureCoordinateIndices(0, 0, indicesArray);
Now, the problem begins. On running test program that only creates this
object and adds it to the universe, I get the following error.
java.lang.ArrayIndexOutOfBoundsException
at
javax.media.j3d.GeometryStripArrayRetained.unIndexify(GeometryStripArrayReta
ined.java:291)
at
javax.media.j3d.IndexedGeometryStripArrayRetained.cloneNonIndexedGeometry(In
dexedGeometryStripArrayRetained.java:66)
at
javax.media.j3d.GeometryArrayRetained.update(GeometryArrayRetained.java:419)
at javax.media.j3d.GeometryRetained.doSetLive(GeometryRetained.java:181)
at
javax.media.j3d.GeometryArrayRetained.setLive(GeometryArrayRetained.java:206
)
at javax.media.j3d.Shape3DRetained.setLive(Shape3DRetained.java:1000)
at javax.media.j3d.GroupRetained.doSetLive(GroupRetained.java:1475)
at
javax.media.j3d.TransformGroupRetained.setLive(TransformGroupRetained.java:3
22)
at javax.media.j3d.GroupRetained.doSetLive(GroupRetained.java:1475)
at
javax.media.j3d.BranchGroupRetained.setLive(BranchGroupRetained.java:101)
at javax.media.j3d.Locale.doAddBranchGraph(Locale.java:183)
at javax.media.j3d.Locale.addBranchGraph(Locale.java:159)
at
com.sun.j3d.utils.universe.SimpleUniverse.addBranchGraph(SimpleUniverse.java
:235)
at IndexTest.<init>(IndexTest.java:174)
at IndexTest.main(IndexTest.java:182)
Exception in thread "main"
In another scenario, I get the following error,
Here, I am creating multiple such geometry arrays and creating a morph
object
out of those.
java.lang.NullPointerException
at
javax.media.j3d.GeometryArrayRetained.getCoordinate(GeometryArrayRetained.ja
va:3221)
at
javax.media.j3d.MorphRetained.updateMorphedGeometryArray(MorphRetained.java:
586)
at
javax.media.j3d.MorphRetained.initMorphedGeometry(MorphRetained.java:1119)
at javax.media.j3d.MorphRetained.setGeometryArrays(MorphRetained.java:247)
at javax.media.j3d.Morph.<init>(Morph.java:124)
at Start.createMorphNode(Start.java:456)
at Start.createSceneGraph(Start.java:263)
at Start.<init>(Start.java:127)
at Main.main(Main.java:60)
Any clue of why this might happen? Anything I have missed out in convering
the
byCopy GeometryArray to byReference?
Thanks in advance,
Regards,
Sameer
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