[osg-users] How to use frame buffer object in existing (not osg) window and pipeline.

Hi, I know OSG viewer can render into other window as shown in the glutviewer and sdl viewer example. But I do not know how to use fbo for this kind of work. The following code describes my purpose. Code: osg::ref_ptr viewer; /* The vierwer is properly set up for other window*/ FrameBuffer

Re: [osg-users] How to use frame buffer object in existing (not osg) window and pipeline.

HI Han, The OSG has a sophisticated support for multiple pass rendering built into the scene graph itself, tjhere is no need to mix viewer code with multi-pass rendering in the way you are doing. I would recommend against conflating viewer and low level rendering of the scene as it limits the flex

Re: [osg-users] How to use frame buffer object in existing (not osg) window and pipeline.

Hi Robert, Thanks for your suggestion, I understand the bettter way is to use osg in all the pipeline. But the ugly fact is that I have to use existing pipeline and inject the view.frame() inside a fbo binding, and hope osg will draw the things onto the fbo texture and depth. Because I can't m