Hi. I finally started to implement the described Timer functionality and was faced with almost the same question: how do I subscribe to osgViewer each frame update? Should I add my class to osgViewer::ViewerBase::setUpdateVisitor?
2012/6/22 Robert Osfield <[email protected]> > Hi Michael, > > On 22 June 2012 10:30, michael kapelko <[email protected]> wrote: > > Am I understanding correctly that Object::STATIC is a flag that says > > something won't be traversed/updated each frame (based on some > > internal decision), and Object::DYNAMIC says: traverse/update it each > > frame? > > DataVariance on Node's isn't used during the normal frame traversals > like update, event and cull traverals, it's only used as hint to the > osgUtil::Optimizer traversals to know whether it can optimize > away/modify nodes for scene graph optimization purposes. > > However, the DataVarinace on StateSet and Drawable is used during draw > dispatch when using the DrawThreadPerContext and > CullThreadPerCameraDrawThreadPerContext threading models - it's used > to prevent the next frame from commensing while there are still > dyanmic leaves to be dispatched to OpenGL. > > Robert. > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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