Hi Robert,
robertosfield wrote: > > What do you need it for? > I'm now working to switch my applocation from a continuous frame to an ON_DEMAND frame to reduce CPU consumption. Unfotunately even with vsync enabled my application takes one cpu core even if nothing changes in the scene. So, for the time being I implemented a "dirty falg" in my scene manager so that the viewer can check it and call frame() as needed. Then, looking at that _boundingSphereComputed flag I was thinking if it may be useful instead of implementing my own dirty flag. I found some "setters" (i.e. in PositionAttitudeTransform) calls dirtyBounds() which is propagated to parents. For sure in my specific case (i.e. one viewer and one scene) a "dirty flag" like that would be enough but may be in a more general case (i.e. scene shared to more than one Viewer) there must be something stored in each viewer also. I thought of a time stamp for example: time of modification to be compared to the time stamp of the frame() computed from each viewer. But I don't know if that would make sense. Regards, Gianni ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=64630#64630 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
