[vtk-developers] OpenGL backend - 1.1 vs 2.0

Ken Martin ken.martin at kitware.com
Wed May 10 08:51:08 EDT 2017


If you have to support RDP (as opposed to other solutions), and you have to
support clients that lack a GPU etc, then you could build your application
against Mesa (with OpenSWR or llvm as the renderer) and I believe it should
work everywhere including RDP.

Ideally at run time we could detect this and pick Mesa/Hardware but I don't
think anyone has had time to dig into how difficult that would be.

>From what I could find nvidia only supports hardware RDP on their
professional cards. It would certainly be nice if vendors would do what
they can to support modern OpenGL more broadly in cases like this.





On Wed, May 10, 2017 at 6:14 AM, Vladimir Engelgardt <v.engelgardt at gmail.com
> wrote:

> Hi,
>
> Problem description: Application uses VTK 7.0 (OpenGL 2 module) for
> rendering on Windows platform. But the problem is, that OpenGL 2 has
> limited
> support over Microsoft's Remote Desktop. RDP is a must for our application
> (VNC, TeamViewer is not an option). On Win 10 there is an option called
> 'Use
> hardware drivers over RDP' and it works, but for limited set of video
> adapters - AMD, Integrated Graphics from Intel and NVIDIA (Tesla, Grid
> only).
>
> Is there any workaround for this problem, i.e. detect GL version at runtime
> and use 1.1 or 2.0? If no, we are going to switch for OpenGL 1.1.
>
> We concern about OpenGL 1.1 support in future versions of VTK. Is it going
> to be supported and how long?
>
> Best Regards,
> Vladimir.
>
>
>
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-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

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