[vtkusers] Direct RayCasting on RGB(A) with VTK possible?

[Lisa S. Avila]

Hello Burkhardt,

No, VTK does not directly volume render RGBA data. It is on the "to do" 
list, but will not be part of VTK 4.0.

Lisa


At 10:54 AM 11/21/2001, burkhardt.dorn at berlin.de wrote:
>Hi all,
>I would like to know whether VTK implements specific or
>common ray-casting algorithms also on 3-dimensional
>RGB(A)-images. The samples I inspected work all on
>pure intensity maps and the color comes from a LUT.
>Of course it is no problem, to convert RGB to Gray.
>
>But one might also try to perform a ray cast obtaining
>the intensity of a given voxel by averaging the RGB of
>its scalar and the color by taking it directly rather
>than from a fictive LUT.
>
>Is this or something similar possible with VTK? A small
>cxx or tcl sample would be useful... :-)
>
>Regards
>Burkhardt Dorn
>mailto:burkhardt.dorn at berlin.de
>
>
>
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