Re: [PyOpenGL-Users] glTexSubImage2D data format

[Mohan G. <mg...@ca...>]

Dear Gijs,

thank you so much! 

Mohan

>Hi Gijs,
>
>>I usually use Numpy arrays for calls like this. So something like this:
>>data = zeros(width*height, 'f')+0.5
>>glTexSubImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height, 
>>GL_LUMINANCE, GL_FLOAT, data)
>
> Thanks for the suggestion! Unfortunately I'm still getting an error... 
> I'm sure I'm doing something stupid, but would you mind taking a look at 
> it? (I can post the complete source code as well, but it's >100 lines, so 
> I'm not sure whether it's all right to send it to the list... )
>
>thanks again,
>Mohan
>
>Error:
>
>Traceback (most recent call last):
>  File "C:\Mohan\pygpu\test.py", line 110, in <module>
>    glTexSubImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height, 
>GL_LUMINAN CE, GL_FLOAT, data)
>  File "C:\Program 
>Files\_Coding\Python26\lib\site-packages\OpenGL\wrapper.py", line 1284, in 
>__call__
>    return self.finalise()( *args, **named )
>  File "C:\Program 
>Files\_Coding\Python26\lib\site-packages\OpenGL\wrapper.py", line 681, in 
>wrapperCall
>    raise err
>OpenGL.error.GLError: GLError(
>        err = 1281,
>        description = 'invalid value',
>        baseOperation = glTexSubImage2D,
>        pyArgs = (
>                GL_TEXTURE_RECTANGLE_ARB,
>                0,
>                0,
>                0,
>                512,
>                512,
>                GL_LUMINANCE,
>                GL_FLOAT,
>                array([ 0.30000001,  0.30000001,  0.3...,
>        ),
>        cArgs = (
>                GL_TEXTURE_RECTANGLE_ARB,
>                0,
>                0,
>                0,
>                512,
>                512,
>                GL_LUMINANCE,
>                GL_FLOAT,
>                array([ 0.30000001,  0.30000001,  0.3...,
>        ),
>        cArguments = (
>                GL_TEXTURE_RECTANGLE_ARB,
>                0,
>                0,
>                0,
>                512,
>                512,
>                GL_LUMINANCE,
>                GL_FLOAT,
>                c_void_p(90243104),
>        )
>)
>
>