Hi all,

I need to generate mipmaps from an osg::Image (a 2D image actually, which may 
be S3TC-DXTC compressed or not), and I have no OpenGL context. I just want my 
image to have mipmaps. Do you know anything that may help me?
- Something to get a context without having to realize something, or with an 
invisible window?
- Something to allocate mipmap memory, compute mipmaps, and store them in the 
osg::Image?

I guess osg::gluBuild2DMipmaps() is the key, but it needs a context and process 
does not appear to be straightforward to me.
Thanks.

Cheers,

Sukender
PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/
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