[vtkusers] Opacity with multiple meshes

[David E DeMarle]

Use depth peeling.
http://www.vtk.org/Wiki/VTK/Depth_Peeling

Or vtkDepthSortPolyData before rendering.

David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909


On Thu, Jan 26, 2012 at 3:10 PM, Nicolas Rannou <nicolas.lists at gmail.com>wrote:

> Hello,
>
> I have several meshes I want to visualize.
>
> If I decrease the opacity of those meshes, the visualization goes wrong:
> I don't see a nice "superposition effect", instead I only see the "last"
> object "in the ray".
>
> Decreasing the opacity,
> - paraview has the expected behavior
> - the vtk example (
> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/Opacity) has the
> wrong behavior.
>
> I could find which option to use to enable a proper behavior...
>
> Thanks,
> Nicolas
>
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