Hi James, On Sun, 11 Jul 2021 at 07:43, James Hogan <ja...@albanarts.com> wrote:
> I'm not sure I follow this. Doesn't OSG's own stereo method use slave > cameras too, or does it somehow avoid multiple cull traversals? > The built in strereo is one of early parts of the OSG, so 20+ years old, and can be found in osgUtil::SceneView. The interbakky manages two cull and draw traversals, but isn't thread aware itself, so just calls them in series. Most modern OSG applications will use vsgViewer which was introduced in OSG-2.x, this has the capability of doing stereo at the viewer level, but it's up to the application to configure the master/slave cameras to create the stereo. The osgViewer still uses osgUti;::SceneView under the hood so inherits it's stereo capabilities. Personally I'd prefer to just implement high level stereo uses master/slave Camera's in osgViewer and had a plan to steadily replace SceneView usage, but never got there before starting the VSG project. The OVR_multiview functionality in the MultiView branch uses osgViewer level setup of stereo, but it's at the application level it's one cull and one draw traversal, the stereo happens entirely on the GPU. Cheers, Robert. -- You received this message because you are subscribed to the Google Groups "OpenSceneGraph Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to osg-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/osg-users/CAFN7Y%2BXOvYHBw_YF9Oikw1oENxbusjuGS6gP7aPuz%3DBNtUqscw%40mail.gmail.com.
