[HOpenGL] Open GL 3.2

[Sven Panne]

Am Freitag, 25. September 2009 00:33:58 schrieb Alexander Göransson:
> [...] At the top of of the documentation page it says OpenGL 3.2, but when i
> read different parts of the documentation on hoogle it says OpenGL 2.1
> every here and there. [...]

To clarify things a bit: The OpenGLRaw package has full support for OpenGL 3.2 
plus tons of extensions, but the OpenGL package does not expose all OpenGL 3.2 
features yet. There are no deep technical reasons for the latter, just a lack 
of time on my side and a sudden burst of activity of the OpenGL ARB/Khronos. 
But there is an easy workaround: Use the OpenGL package as far as possible and 
simply fall back to the parts of the OpenGLRaw API for unexposed features.

If you explicitly need an OpenGL 3.x context and/or a specific OpenGL profile, 
you have to use the functions in:

http://hackage.haskell.org/packages/archive/GLUT/2.2.2.0/doc/html/Graphics-UI-
GLUT-Initialization.html#7

initialContext{Version,Flags,Profile} depend on recent freeglut features, so 
you might need to update this native library. The freeglut project hasn't 
released an official new version for a long time, so your mileage may vary, 
depending e.g. on your Linux distribution. If you don't find a precompiled 
package, you can use the usual "./configure && make install" or compile 
freeglut via VisualStudio, which should be easy.

Cheers,
   S.