Re: [PyOpenGL-Users] How to use shaders in pyopengl

[Dirk R. <di...@li...>]

	Hi Mike,

Mike C. Fletcher wrote:
>
> I found the bug.  Basically there was a wrapper for 
> glShaderSource/glShaderSourceARB which was not passing in the 
> "extension" parameter which was being used to decide whether the 
> function should be available.  Previously we would just try to get the 
> function and check for a NULL pointer, but the Mesa implementation 
> decided to start returning non-null pointers that just print out warning 
> messages when you try to call a non-existent function, so we started 
> checking for the extensions.  Unfortunately, the wrapper didn't get 
> updated, so the test was always coming up false.
> 
> Anyway, with current CVS shaders should work on Win32.  I'll likely be 
> doing some further refactoring of the base platform module to clean it 
> up and see if I can discover the problem on OSX tomorrow.

Thanks for fixing this, works like a charm!

I finally took the time to take a look at PyOpenGLs implementation. Not needing 
a C/C++ part makes the whole system pretty nice, I have to say. It's a little 
painful to write in the first place, but not having to deal with compiling stuff 
everywhere is pretty nice (I'm fighting compiling my boost::python module on 
Windows right now...).

Thanks again

	Dirk