[osg-users] Equivalent of glTexSubImage2D ?

[Johny Canes]

Hi,

On the upside, I've been studying the workings of OSG and looking at the source code really helps. However, my glTexSubImage2D continues to have zero effect on its code. I'm doing this via a operator StateAttribute callback on the texture, binding it, then trying to write pixels. I've also discovered the scoped lock mutex, which is really cool.

However, the gl operation still doesn't do anything.

When I look at how Texture2D.cpp does it, it uses `glPixelStorei(GL_UNPACK_ROW_LENGTH, x);` and the like, but I've no idea how to use these...

Thank you!

Cheers,
Johny

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