[vtkusers] volume rendering speed

[Jesse Corrington]

I am trying to render volumes that are around 350 X 350 X 500 with VTK.  The 
hardware i am using is 1 gb ram, p4 3.2 ghz, and a geforce fx 5900 128 mb.  
to improve speed i have set interpolation to nearest, increased the sample 
distance, and used vtkImageShrink3D to downsize the data.  I am using a ray 
cast mapper, because the 2d texture mapper was even slower.  I am still not 
seeing the results i was hoping for.  Is there anyway i can increase speed 
and not kill the quality.  It seems that when i do these renderings using 
the volview trial, they look nicer and are faster.  Does volview use a 
proprietary volume rendering technique?  should i maybe look into getting a 
volumepro board?

Thanks
Jesse Corrington

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