[vtkusers] Non-transparent wireframe representation?

[xabi riobe]

try vtkProperty::BackfaceCullingOn()
The wireframe is still transparent, so if an object is behind you will see
it, but if you are working with a single mesh and your aim is to see only
the edges in front of the camera it will do what you are looking for.

2010/4/26 Joel Schaerer <joel.schaerer at gmail.com>

>
> 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<http://www.creatis.insa-lyon.fr/%7Eschaerer/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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>
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