[vtkusers] volume render floats, quantizing to ints

Lorensen, William E (CRD) lorensen at crd.ge.com
Mon May 14 23:31:39 EDT 2001


-----Original Message-----
From: John Clyne [mailto:clyne at cyclone.scd.ucar.edu]
Sent: Sunday, May 13, 2001 10:06 PM
To: vtkusers at public.kitware.com
Subject: [vtkusers] volume render floats, quantizing to ints

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	

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