Re: [PyOpenGL-Users] NeHe Lesson 6

[Alexander S. <scr...@lx...>]

Ian Krepps wrote:
> I am playing around with lesson6.py in the demo files (ported to PyOpenGL 2.0 by Tarn Weiser Burton, original source C based turtorial at nehe.gamedev.net).
> 
> When I replace the "NeHe.bmp" file with other bmp files (of similar size) I get the following error:
> 
> File "lesson6.py", line 76, in LoadTextures
>     glTexImage2D(GL_TEXTURE_2D, 0, 3, ix, iy, 0, GL_RGBA, GL_UNSIGNED_BYTE, image)
> OpenGL.GL.GLerror: [Errno 1281] invalid value
> 
>>Exit code: 1
> 
> 
> I have checked the manpages for glTexImage2D for the error INVALID_VALUE (I believe this is correct), but I am unable to figure out the source of the error.  
> 
> Has anyone else seen this problem ? Do I need to perform some error checks on the bmp format prior to calling glTexImage2D ? I am new to Opengl.
> An extract from the source code (lesson6.py is below)

Double-check if the bitmap width and height are powers of 2 and meet your 
OpenGL implementation's limits on texture size.

  --

./lxnt