[vtkusers] volume render floats, quantizing to ints

[John Clyne]

I'm trying to ray cast some irregular floating point data that i've 
re-gridded using the "shepard" filter. Problem is is that the ray 
casting mapper chokes on floats (wants 8 or 16 bit ints). Can't seem to
find a filter for narrowing floating point data  to unsigned ints. Does
one exist in vtk? Alternatively, is they any way to ray cast irregular
data in vtk?

Thanks for any pointers!

cheers - jc



John Clyne 	(clyne at ncar.ucar.edu)	
National Center for Atmospheric Research
P.O. Box 3000, Boulder, Colorado 80307	
(303) 497-1236	FAX (303) 497-1298