[vtkusers] vtkusers Digest, Vol 155, Issue 34

[Luis Vieira]

Just, don't waste your time with Vtk and OpenGL2. Keep the backend with OpenGL only.

Sent from my iPhone

> On Mar 25, 2017, at 12:00 PM, vtkusers-request at vtk.org wrote:
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> Today's Topics:
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>   1. face culling and edge visibility (Miroslav Drahos)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Sat, 25 Mar 2017 00:14:42 +0000
> From: Miroslav Drahos <mdrahos at aurisrobotics.com>
> To: "vtkusers at vtk.org" <vtkusers at vtk.org>
> Subject: [vtkusers] face culling and edge visibility
> Message-ID:
>    <MWHPR04MB04171E1C46F80632A42DEDC0BA310 at MWHPR04MB0417.namprd04.prod.outlook.com>
>    
> Content-Type: text/plain; charset="iso-8859-1"
> 
> Hi VTK folks,
> 
> I am rendering a surface with culling faces on and edge visibility on as well. When I used VTK 6.2, only the edges of faces that were visible (i.e. not culled) were shown, with VTK 7.1.0 all edges are visible, even for faces that are culled. My VTK 6.2 was compiled with rendering backend OPENGL, and 7.1.0 with OPENGL2, which is what most likely causes the difference in behavior.
> 
> It does not matter whether front or back face culling is used, the edge visibility behavior is the same.
> 
> 
> What I am hoping to hear: Is there a way to get the "old" behavior with VTK7.1/OPENGL2?
> 
> I would like to show the edges only for the faces that are not culled away.
> 
> 
> Thank you tons,
> 
> Miro
> 
> 
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> End of vtkusers Digest, Vol 155, Issue 34
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