[vtkusers] SimpleRayCast.tcl

[guanwen zhang]

Hello,

I tried to run the example "SimpleRayCast.tcl",
I got the following error messages, could anyone 
please help me?

ERROR: In
C:\martink\vtk42\VTK\Rendering\vtkVolumeRayCastMapper.cxx,
line 328
vtkOpenGLVolumeRayCastMapper (0x0A4F8528): Cannot
volume render data of type short, only unsigned char
or unsigned short.

ERROR: In
C:\martink\vtk42\VTK\Rendering\vtkVolumeRayCastMapper.cxx,
line 328
vtkOpenGLVolumeRayCastMapper (0x0A4F8528): Cannot
volume render data of type short, only unsigned char
or unsigned short.

ERROR: In
C:\martink\vtk42\VTK\Rendering\vtkVolumeRayCastMapper.cxx,
line 328
vtkOpenGLVolumeRayCastMapper (0x0A4F8528): Cannot
volume render data of type short, only unsigned char
or unsigned short.



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