Ogre 1.9 RenderSystem_GL Steam Overlay fix

[pontus]

In a recent steam overlay update (today) steam overlay does more setup code.
The steam overlay setup is hooked up in the wglMakeCurrent(...) call.
The Ogre GL RenderSystem (v1-9) makes an excessive amount of wglMakeCurrent calls.
As a result the fps drops to an unacceptable value if you have a complex rendering setup with many rendertargets.
I made a patch that only changes context if the context really need to change.

https://www.dropbox.com/s/wb9r9qku4241b ... patch?dl=0

Cheers Pontus

[spacegaier]

Would it be possible to send us your patch as a pull-request, so that it does not get overlooked, or at least put it in a JIRA ticket (https://ogre3d.atlassian.net/projects/OGRE). Thank you.

[BAntDit]

Yay!

I've put this fix to my Ogre3D 1.9 fork. I have many render targets in renderer(reflection, refraction, shadowing, decals and etc) - the fix gives me +40 fps.

[pontus]

Would it be possible to send us your patch as a pull-request, so that it does not get overlooked, or at least put it in a JIRA ticket (https://ogre3d.atlassian.net/projects/OGRE). Thank you.

Ok. I'll do the pull request thing.
Sorry for not checking the post for a while.

I've put this fix to my Ogre3D 1.9 fork. I have many render targets in renderer(reflection, refraction, shadowing, decals and etc) - the fix gives me +40 fps.

I'm glad this helped