On 5/19/2011 9:19 AM, Marc Wahl wrote:
> I've got a (for example, 1024x1024px) Image and
> each animation cycle I need (in a smaller texture) a slightly different part 
> of ​​this Image.

  Maybe I'm missing something but wouldn't it be better to store one large 
texture image
and just change your vertex texture coordinates to view a different part of 
this image as
needed?

  Reloading a texture is slow compared to reloading new vertex texcoords.

-- 
Chris 'Xenon' Hanson, omo sanza lettere. [email protected] 
http://www.alphapixel.com/
  Digital Imaging. OpenGL. Scene Graphs. GIS. GPS. Training. Consulting. 
Contracting.
    "There is no Truth. There is only Perception. To Perceive is to Exist." - 
Xen
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