[vtkusers] volume rendering performance

[flin at enders.tch.harvard.edu]

Hello all,

I need some advice on how much imporvement the
vtkFixedPointVolumeRayCastMapper will make vs. regular
vtkVolumeRayCastMapper ?  I'm doing volume rendering of roughly
250x80x150 voxels, and the speed is unacceptable.   Any suggestions on how
to speed up?  Specifically, how to use hardware to accelerate it?

Thanks.

/faith