Hi folks. I'm stumped by an RTT problem and looking for help! I have two RTT cameras that share the same subgraph. My goal is to render the subgraph with two different projection matrices (not unlike in the PSSM example). But I'm having a weird problem.
Each RTT camera is created separately, and each bound to its own Texture2D. Otherwise they are identical, and they share no data. Then in the CULL traversal I do this: cam1->setViewMatrix( viewMatrix ); cam1->setProjectionMatrix( projMatrix1); cam1->accept( nv ); cam2->setViewMatrix( viewMatrix ); cam2->setProjectionMatrix( projMatrix2 ); cam2->accept( nv ); The problem: both cameras render to the SAME texture (the texture attached to cam1), one right over top of the other. I confirmed this by attaching an osg::Image and writing it to disk. If I traverse just ONE of the cameras, everything works correctly. But if I traverse them both (as in the snippet above), both cameras render to the FIRST camera's texture. If I reverse the order of traversal, both cameras render to cam2's texture. (As I said, each camera was created separately and each has its own Texture2D instance.) Any ideas? What's my mistake? Glenn Waldron / @glennwaldron
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