[Mesa-dev] [PATCH 2/5] mesa: implement GL_NVX_gpu_memory_info

[Marek Olšák]

On Tue, Feb 2, 2016 at 4:02 PM, Roland Scheidegger <sroland at vmware.com> wrote:
> Does anyone use these extensions?
> I suppose maybe to get the total amount of video memory?
> From the dynamic counts, I would have thought the eviction one would be
> the most interesting, but this one isn't implemented. Ah well I guess a
> sloppily implemented extension is better than none.

I know from personal experience that Unreal Engine 3 uses one of them
(or maybe both), because it crashed when I had a bug there. I've heard
the Source engine uses them too.

The use case for modern games is to support texture paging, i.e.
loading texture pages on demand based on on-screen visibility of
textures and available memory.

Marek