[vtkusers] Opacity problems

[Francois Bertel]

What's the result of the depth peeling / translucent/ OpenGL tests?

from the root of your VTK build directory, type:

$ ctest -R "Depth|OpenGL|FBO|Translu|RGBA"

or better you can submit a partial experimental dashboard by typing:

$ ctest -D Experimental -R "Depth|OpenGL|FBO|Translu|RGBA"


PS: Keep the discussion on the mailing list, please.

Daniel Cabrini Hauagge wrote:
> On Tue, Feb 26, 2008 at 4:38 PM, Francois Bertel
> <francois.bertel at kitware.com> wrote:
>> What's your graphic cards?
> 
> NVidia GeForce 8800 GTX
> 
> OS: Ubuntu 7.10
> CPU: AMD Athlon 64 X2 4200
> 
>>
>>
>>  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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> 
> 
> 


-- 
François Bertel, PhD  | Kitware Inc. Suite 204
1 (518) 371 3971 x113 | 28 Corporate Drive
                       | Clifton Park NY 12065, USA