[vtkusers] Non-transparent wireframe representation?

[Joel Schaerer]

Hi Jérôme,

thanks for your answer! I've tried implementing the forked pipeline exactly
as you said, but unfortunately my graphics card doesn't seem to like
rendering two objects that are so close. As a result, some edges are hidden
randomly, which results in a very ugly flicker effect when the meshes are
animated. Here is a static screen capture to illustrate the effect:

http://www.creatis.insa-lyon.fr/~schaerer/capture_36_0000_Pod1_deformed_to_0000_Pod1.png

I've tried adding a vtkShrinkFilter. This improves thing a bit, but there
still are problems.

Does anyone have a better solution to offer? I believe that at one point the
wireframe representation used to be opaque by default. At what point and why
did that change?

Thanks again,

joel


Jérôme-2 wrote:
> 
> Hi Joel,
> 
> I don't know of this is a good way, but you can try a forked visualisation
> pipeline:
> 
> 1) Original polydata -> Surface representation
> 2) Original polydata -> PolyDataNormals -> ExtractEdges -> Surface
> representation
> 
> You will have to play with normals flipping, consistency and surface
> color.
> I will send (PM) a screenshot of a ParaView rendering that follows this
> idea.
> 
> HTH
> 
> Jerome
> 
> 
> 

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