问题
when I run glxinfo I get:
...
direct rendering: Yes
server glx vendor string: NVIDIA Corporation
server glx version string: 1.4
...
client glx vendor string: NVIDIA Corporation
client glx version string: 1.4
...
GLX version: 1.4
...
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce 9500M GS/PCI/SSE2
OpenGL version string: 3.2.0 NVIDIA 195.36.24
OpenGL shading language version string: 1.50 NVIDIA via Cg compiler
...
Without polling extension functionality, from what version's functions may I assume supported? Minimum of 1.4 and 3.2 seems incredibly historic, so I assume glx version is not numbered in parallel with OpenGL version...
What GLSL version may I assume? It displays the Cg compiler version, but what's my GLSL version?
回答1:
GLX is the protocol that transports OpenGL commands in a X11 command stream. The most recent version of GLX is 1.4.
The OpenGL version is told in the "OpenGL version string". And you got 3.2
so I assume glx version is not numbered in parallel with OpenGL version...
No it's not, because they're two different things. GLX transports OpenGL, it doesn't implement it.
回答2:
OK, basically it turns out that it is just what it says:
GLX version 1.4
OpenGL version 3.2
GLSL version 1.50 via NVIDIA Cg Compiler
来源：https://stackoverflow.com/questions/9045156/how-can-i-check-my-opengl-version