[vtk-developers] Offscreen rendering

[Prabhu Ramachandran]

On 11/24/18 5:10 PM, Ken Martin wrote:
> OffScreen does not require EGL or Mesa.  You should be able to do offscreen
> with any opengl implementation.
>
> When folks mention offscreen, sometimes they mean "rendering without an
> xserver" or "rendering on a system without opengl 3.2"  for those cases you
> can use EGL or Mesa or OSMesa depending on the issue.

Sorry that is what I meant, most of the use cases I've seen for off screen are
typically for cases where having an xserver or any windowing system is not desired.

>
> In terms of putting it all into one there is some OpenGL initiative to support
> this (I forget the name, gl virtual dispatch maybe) which could handle it I
> think. Failing that you can do the test at runtime and then dynamically load
> osmesa/mesa etc as needed. Some folks do that. I agree having it built in and
> automatically selected would be nice. Not sure how difficult it is though.

Thanks for the clarification!

cheers,

Prabhu

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