[vtk-developers] FrustumSource face ordering is wrong?

[Bill Lorensen]

Thanks for the explanation. I think I'll leave it as is.

On Aug 18, 2017 9:14 PM, "François Bertel" <fbopensource at gmail.com> wrote:

> Hello,
>
> At the time I introduced vtkFrustumSource (2009), I used it as a tool to
> visualize the frustum of a spotlight as wireframe when I was working on
> adding shadow maps to VTK. I used it in TestShadowMapPass to make sure the
> two spotlights and two shadows were aligned properly. You can see the
> result in the following link:
>
> http://www.vtk.org/Wiki/File:TestShadowMapPass.png
>
> It did not make sense to display the frustum as a collection of opaque
> polygons as it would have occluded what I was trying to see
> (I could have used non-opaque polygons but that would have made the test
> more complicated).
>
> Feel free to fix the face ordering for polygon rasterization.
>
> Best,
>
> --
> François Bertel
>
>
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