Re: OpenGL-ctypes, OpenGLContext on Mac OS X, GLSL demo

Josh Marshall wrote:
> My sourceforge user id is "jpmarshall".
I've added you to the developer's list, you should have CVS and 
ticketing-system access now.
> I downloaded and got OpenGLContext working after some tweaking. I 
> added in the line "ArrayType = ndarray" in the vrml/arrays.py and 
> changed "return a.__array_typestr__" to "return a.dtype.char" to get 
> the latest version of numpy working.
I'll add code to handle either case.
> I've been going through the tests in OGLContext, and some work, the 
> majority fail with:
>
> Traceback (most recent call last):
>   File "source/callbacks.c", line 206, in 'calling callback function'
> ctypes.ArgumentError: argument 2: exceptions.TypeError: Don't know how 
> to convert parameter 2
>
> or similar.
Interesting, sounds like a use-of-ctypes problem on OS-X.
> Another class of errors that pop up often is similar to the following:
>
>   File "tests/shaderobjects.py", line 51, in Render
>     shader_objects.glUseProgramObjectARB(self.program)
>   File "build/bdist.darwin-8.7.0-Power_Macintosh/egg/OpenGL/error.py", 
> line 177, in glCheckError
> GLError: GLError(
>         err = 1282,
>         description = 'invalid operation',
>         baseOperation = glUseProgramObjectARB,
>         cArguments = (1L,)
> )
> ERROR:context.visitor:method <unbound method 
> SelectRenderPass.Rendering> for node _ContextRenderNode( @0x7CD790 )
Interesting again, that looks like an OpenGL-level failure (i.e. bad 
coding on my part in creating the test).

I'm just sitting down to spend a few hours on OpenGL-ctypes.  Will post 
to the dev list regarding any progress.

Have fun,
Mike

-- 
________________________________________________
  Mike C. Fletcher
  Designer, VR Plumber, Coder
  http://www.vrplumber.com
  http://blog.vrplumber.com


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