Hi Kim, On Thu, Nov 10, 2011 at 6:21 AM, Kim Bale <[email protected]> wrote: > > Is there a way of reusing the FBOs so that I don't need to duplicate them > all for each eye? > > I couldn't seem to find a way of doing that without the previous data > being overwritten. >
Which stereo mode are you using? I run into this problem a lot as well. I believe the reason the previous data gets overwritten is that osgUtil::SceneView explicitly calls RenderStage::drawPreRenderStages() on both eyes, before drawing the main render stage. You might be able to fix this by commenting out these calls and letting RenderStage::draw() take care of the prerender stages, depending on which stereo mode you are using. I believe these explicit calls are necessary for the anaglyphic and interlace stereo modes, because you wouldn't want the color/stencil mask affecting the prerender stages. However, for the split and quad buffer stereo modes, I don't believe these calls are necessary and it should be safe to comment those lines out. With a slight modification to SceneView::draw() it should be possible to get this working with anaglyphics/interlace modes as well. This is something that's been on my todo list for a while. Now might be a good time to try and tackle the issue :) Cheers, Farshid Regards, > > Kim. > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >
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