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

[Roland Scheidegger]

Am 02.02.2016 um 20:41 schrieb 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.

But do they really use available memory or just total memory? Anyway, I
guess if it's used that's ok, I'm just not a fan of odd fringe vendor
specific extensions.

Roland