i have been using java3d compression classes for quite some time now
 and quite often get this exception ( exception attached below).
I have checked all the parts of my code , but couldn't figure out the
 problem pls help me understand the problem here.

 is it a bug in java3d ?  i am using version 1.2.1_03


 java.lang.IllegalArgumentException: GeometryDecompressor: bad delta normal
 in compressed buffer
   at
javax.media.j3d.GeometryDecompressor.processSetNormal(GeometryDecompressor.j
 ava:827)   at
javax.media.j3d.GeometryDecompressor.processDecompressionOpcode(GeometryDeco
 mpressor.jav:442)  at
javax.media.j3d.GeometryDecompressor.processDecompression(GeometryDecompress
or.java:391)
   at
javax.media.j3d.GeometryDecompressor.decompress(GeometryDecompressor.java:30
 6)   at
javax.media.j3d.GeometryDecompressorRetained.decompress(GeometryDecompressor
 Retained.java:135)   at
javax.media.j3d.CompressedGeometryRetained.getGeometry(CompressedGeometryRet
ained.java:277)
at
javax.media.j3d.CompressedGeometryRenderMethod.renderCompressedGeo(Compresse
 dGeometryRenderMethod.java:91)  at
javax.media.j3d.CompressedGeometryRenderMethod.render(CompressedGeometryRend
erMethod.java:53)  at
javax.media.j3d.CompressedGeometryRenderMethod.render(CompressedGeometryRend
erMethod.java:69)


  at javax.media.j3d.RenderMolecule.render(RenderMolecule.java:1525)
  at javax.media.j3d.TextureBin.render(TextureBin.java:722)
  at javax.media.j3d.TextureBin.render(TextureBin.java:570)
  at javax.media.j3d.AttributeBin.render(AttributeBin.java:304)
  at javax.media.j3d.EnvironmentSet.render(EnvironmentSet.java:555)
  at javax.media.j3d.LightBin.render(LightBin.java:420)
  at javax.media.j3d.RenderBin.renderOpaque(RenderBin.java:3808)
  at javax.media.j3d.Renderer.doWork(Renderer.java:943)
  at javax.media.j3d.J3dThread.run(J3dThread.java:256)


 regrads
 Saurabh

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