Knowing my REAL OpenGL version - RESOLVED

michael valle · 2014-10-13T11:16:26

So I have an NVidia GeForce 525M. I am trying to use NVidia NSight debugger, as suggested by a user in one of my recent threads. For most of the capabilities of NSight, OpenGL 4.2 is required. I looked up info on my graphics card: http://en.wikipedia.org/wiki/GeForce_500_Series#GeForce_500M_.285xxM.29_series it looks like 4.2 is supported. I also made use of GlView: http://www.realtech-vr.com/glview/ to check for 4.2 support. While running NSight however, it complains that I have OpenGL 3. All my shaders use GLSL version 420 and they all work just fine. I have downloaded the latest drivers from my card as well. I am using Glew 1.9.0 which should give me OpenGL 4.3 support... Any idea why NSight would say I have OpenGL 3? (edit) I made use of the calls: glGetIntegerv(GL_MAJOR_VERSION,*); glGetIntegerv(GL_MINOR_VERSION,*); both return 4. So my card supports 4.2, my version of Glew supports 4.3, OpenGL queries say I have 4.4, and NSight tells me I have 3.0.. hahaha

Graphics and GPU Programming Programming OpenGL

Started by mikev October 03, 2014 12:50 AM

29 comments, last by 21st Century Moose 9 years, 6 months ago

BitMaster

8,652

October 13, 2014 10:47 AM

Finally I can mark this thread as resolved. Man, what a bitch this was!

In general the site policy is to discourage marking threads as resolved. If an issue is solved in some way discussion will naturally die down. But in a lot of other cases the OP is not the best person to decide when something is really fixed (instead of the more common 'apparently fixed') and the 'resolved' tags just raise a lot of annoying false flags.

21st Century Moose

13,459

October 13, 2014 11:16 AM

The correct procedure for forcing a program to use the NVIDIA card instead of the Intel is outlined at e.g. http://www.garagegames.com/community/forums/viewthread/136127

Follow that and you'll ensure that any program you ship will also work for users without requiring them to do any configuration.

The bad news: I'm not sure how portable this is, how well it integrates with framework libraries (SDL, GLUT, GLFW, etc), and there doesn't appear to be any AMD equivalent. Depending on the needs of your program none of these might acually be an issue.

Direct3D has need of instancing, but we do not. We have plenty of glVertexAttrib calls.

Knowing my REAL OpenGL version - RESOLVED

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Knowing my REAL OpenGL version - RESOLVED

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