[vtkusers] Opacity problems

[Daniel Cabrini Hauagge]

I also forgot to inform my version of VTK

vtk version 5.1.0, vtk source $Revision: 1.3007 $, $Date: 2008/01/23
11:22:41 $ (GMT)

On Tue, Feb 26, 2008 at 4:38 PM, Francois Bertel
<francois.bertel at kitware.com> wrote:
> What's your graphic cards?
>
>
>
>  Daniel Cabrini Hauagge wrote:
>  > Hello,
>  >
>  > I'm relatively new to VTK so please pardon my ignorance. I'm trying to
>  > setup a scene using various overlapping quads with varying
>  > transparency (opacity is determined by the dot product of the plane
>  > normal with the camera's view plane normal). I think my setup is
>  > correct but I'm having trouble with how the transparent quads are
>  > rendered. I've seen many messages in the mailing list complaining
>  > about similar problems and tried the depth peeling technique in the
>  > wiki but didn't get the correct results.
>  >
>  > Here are the results I've obtained
>  > http://www.liv.ic.unicamp.br/~hauagge/vtk_opacity_trouble.pdf
>  >
>  > and here is an example program that illustrates the problem
>  > http://www.liv.ic.unicamp.br/~hauagge/test09_transparencyFromCamera.py
>  >
>  > I'd appreciate any help,
>  >
>
>
>  --
>  François Bertel, PhD  | Kitware Inc. Suite 204
>  1 (518) 371 3971 x113 | 28 Corporate Drive
>                        | Clifton Park NY 12065, USA
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-- 
Daniel Cabrini Hauagge
cel: +55 (19) 8194-8480