[osg-users] Equivalent of glTexSubImage2D ?

[Johny Canes]

Hi,

I've been exploring my options, and have not found a decent solution.

In the osg prerender example, there's an image that's attached to a camera. It is attached to a texture with texture->setImage(0, image);, and the camera has a post-draw callback that inverts the colors on the image.

The image holds the pixels of the scene.

When we render the texture, the texture may see that it has a dirty image attachment.

The problem is that I don't want to dirty the whole image, which is 2048x2048.

Cheers,
Johny

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