Re: [PyOpenGL-Users] glTexSubImage2D data format

[Gijs <in...@bs...>]

No problem :)

On 10-11-2009 21:24, Mohan Ganesalingam wrote:
> 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),
>>         )
>> )
>>
>>
>>      
>
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