[PyOpenGL-Devel] [ pyopengl-Bugs-1498439 ] glTexImage1/2/3D does not allow NULL texture data

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Bugs item #1498439, was opened at 2006-05-31 19:27
Message generated for change (Comment added) made by illume
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Category: GL
Group: v2.0.1
>Status: Open
Resolution: Fixed
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Mike C. Fletcher (mcfletch)
Summary: glTexImage1/2/3D does not allow NULL texture data

Initial Comment:
The glTexImage1/2/3D calls do not allow NULL texture 
data to be passed in. For example, the following 
valid OpenGL call fails with a TypeError:

glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, 512, 512, 0, 
GL_RGB, GL_INT, None)

File "gl.pyx", line 592, in gl.glTexImage2D
TypeError: expected string or Unicode object, 
NoneType found

A NULL texture is useful when you want to create a 
render target texture or a texture whose content will 
be defined at a later time.

Regards,
Sami Kyöstilä <sky...@TH...>


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>Comment By: Rene Dudfield (illume)
Date: 2008-01-23 01:10

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What about allowing the use of 0?

Often in example opengl code 0 is used, and not NULL.  Passing in 0
currently fails - where I think it should act as C opengl does.  This would
allow more copy/paste examples to work from C code.

cu,

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Comment By: Mike C. Fletcher (mcfletch)
Date: 2008-01-20 03:04

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This is now working in 3.x CVS.

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