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<DIV><FONT size=2>Hello,</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT face="arial, helvetica, sans-serif" size=2>I add two mappers in a vtkLODProp3D (one vtkVolumeTextureMapper3D and one</FONT><FONT face="arial, helvetica, sans-serif">
<P><FONT size=2>vtkFixedPointVolumeRayCastMapper) and I add 10 positional lights. It works very well with vtkFixedPointVolumeRayCastMapper but when the vtkLODProp3D selects the vtkVolumeTextureMapper3D , it uses only one light (the first added). So it's very dark with vtkVolumeTextureMapper3D and normal with vtkFixedPointVolumeRayCastMapper.</FONT></P>
<P><FONT size=2></FONT> </P>
<P><FONT size=2>I have been looking for an answer to this problem without succes. So may be do you know this problem and the answer...</FONT></P>
<P><FONT size=2></FONT> </P>
<P><FONT size=2>Thank you.</FONT></P>
<P><FONT size=2></FONT> </P>
<P><FONT color=#008000 size=2>Part of my code:</FONT></P>
<P><FONT color=#008000 size=2> </P></FONT><FONT size=2>
<P>vtkVolumeProperty * volumeProperty=vtkVolumeProperty::New();</P>
<P>vtkFixedPointVolumeRayCastMapper * volMapper=vtkFixedPointVolumeRayCastMapper::New();</P>
<P>setVolumeProperty(volumeProperty,dataFunction);</P></FONT><FONT size=2>
<P>volMapper->SetSampleDistance(dataFunction.getScalarDistance());</P></FONT><FONT size=2>
<P>volMapper->SetImageSampleDistance(1.0);</P></FONT><FONT color=#008000 size=2>
<P> </P></FONT><FONT size=2>
<P>vtkVolumeTextureMapper3D *volMap3D=vtkVolumeTextureMapper3D::New();</P>
<P>volMap3D->SetSampleDistance(dataFunction.getScalarDistance());</P>
<P>volMap3D->SetPreferredMethodToNVidia();</P>
<P> </P></FONT><FONT size=2>
<P>vtkLODProp3D * volumeLOD=vtkLODProp3D::New(); </P>
<P></FONT><FONT color=#0000ff size=2>int</FONT><FONT size=2> id3D, idRC;</P>
<P>id3D=volumeLOD->AddLOD(volMap3D,0.0);</P>
<P>idRC=volumeLOD->AddLOD(volMapper,0.0);</P>
<P>volumeLOD->SetLODProperty(idRC,volumeProperty);</P>
<P>volumeLOD->SetLODProperty(id3D,volumeProperty);</P>
<P> </P>
<P> </P>
<P> </P>
<P> </P></FONT></FONT></DIV></DIV></div><br>
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