Re: [PyOpenGL-Users] Difficulty with the shaders tutorial

[Ian M. <geo...@gm...>]

On Thu, Feb 16, 2012 at 12:09 PM, Derakon <de...@gm...> wrote:

> On further investigation, those functions weren't available because I
> didn't have an OpenGL context yet. My bad. Moving the set-up to later
> on in the program (the first paint call) instead gives these errors:
>
> RuntimeError: ('Shader compile failure (0): 0(3) : error C7533: global
> variable gl_ModelViewProjectionMatrix is deprecated after version
> 120\n0(3) : error C7533: global variable gl_Vertex is deprecated after
> version 120\n', ['#version 330\n            void main() {\n
>    gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n
>  }'], GL_VERTEX_SHADER)
>
> Feel free to correct me, but it looks like this means that the
> tutorial is using deprecated concepts? GL_VERSION is 3.3.0 and
> GL_SHADER_VERSION is "3.30 NVIDIA via Cg compiler", for what it's
> worth.

In later versions of OpenGL, the hardware matrix support was dropped.  I
think this is a mistake.  But the practical upshot is, to make your code
work, try using something like "#version 120" or something.
Ian