[vtk-developers] [vtkusers] PolyData rendering problem

[David E DeMarle]

What is the world space size of the triangles? Are they small enough to
push the limits of GL float precision?

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


On Tue, Nov 12, 2013 at 6:10 PM, Frank Gao <Frank.Gao at guidemia.com> wrote:

>
>
> Hi All,
>
>
>
> We are having some problems with the surface rendering in VTK. If the
> users don’t set their graphics card preference to “Quality”, the surface
> rendering will show a lot of “ghost” lines between the triangles, but they
> are not the polydata edges. Completely display artifact. When the triangles
> are small, this is much more obvious. I places a picture in the following
> link. The left one has problem. The right one is when preference is set to
> “quality”.
>
>
>
> https://www.dropbox.com/s/1kvpzia57uggist/vtk_polydata_rendering_case.PNG
>
>
>
> Because of this we have to tell the users to change their graphics card
> setting. Is this something we can do in the code? Thanks a lot in advance.
>
>
>
> Regards,
>
> Frank Gao
>
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