Hi Farshid, Thanks for your reply. Fortunately I'm working with quad buffered stereo so I'll have a dig around in the SceneView code and see if your idea works.
Cheers, K. On 10 November 2011 16:14, Farshid Lashkari <[email protected]> wrote: > 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 >> >> > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >
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