Hi Chris,
Not sure if this is what you’re looking for, but you can give a hint to the
drivers by exporting variables in your code. In my main.cpp I do something
like:
#ifdef WIN32
extern "C" {
/// Declare this variable in public to enable the NVidia side of Optimus -
http://developer.download.nvidia.com/devzone/devcenter/gamegraphics/files/OptimusRenderingPolicies.pdf
__declspec(dllexport) int NvOptimusEnablement = 1;
/// Declare this variable in public to enable the AMD side of AMD Switchable
Graphics (13.35 driver or newer needed) - http://devgurus.amd.com/thread/169965
__declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;
}
#endif /* WIN32 */
We have not had a problem since.
- Dan
From: osg-users [mailto:[email protected]] On Behalf
Of Chris Hanson
Sent: Thursday, May 10, 2018 2:15 PM
To: OpenSceneGraph Users
Subject: [osg-users] Setting OpenGL and graphics card settings prgrammatically?
As you are aware, drivers like the NVidia Windows driver have a variety of
tuneable settings accessible through the vendor-specific setting application.
Many times these accomplish things that can't be accessed through the standard
OpenGL APIs or extensions.
Is there any way to force settings (like use of dedicated GPU versus
integrated GPU) from application code via an API?
Basically, we're trying to avoid having to teach the untrained user how to
mess with those settings when we know the preferred settings for the
application.
Interested in NVidia and optionally AMD, Windows primarily but cross-platform
APIs are welcomed.
I'm digging into this:
https://docs.nvidia.com/gameworks/index.html#gameworkslibrary/coresdk/gsa_api.htm
to see if it does what I want, but welcome input from others.
--
Chris 'Xenon' Hanson, omo sanza lettere. [email protected]
http://www.alphapixel.com/
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