Hi Christian, Callbacks are simply called in the order that visitor comes across them, it's depth first, left right by default for OSG's update traversal. There isn't any other controls for order like there is for the rendering back end.
You can either enforce the ordering when you create your scene graph or manage the update at a higher level than using update callbacks. Robert. On 15 January 2016 at 15:47, Christian Buchner <christian.buch...@gmail.com> wrote: > Hi, > > I have a couple of Geodes with an associated update callback, responsible > for updating the nodes. > > Now due to a customer request there is a dependency between these Geodes, > requiring a specific order in which these callbacks have to be executed. My > geodes each render a 3-dimensional cylinder indicating a measurement value. > Now the customer wants different measurements stacked on top of each other, > and hence the bars on top need to know the value of the bar below in order > to render correctly. > > This is done easiest if I can guarantee that the node callbacks will be > called in a specific order (bottom to top, in stacking order) > > Is there any mechanism to do deal with order dependencies of scene graph > updates, such as the render bins that are used in rendering? > > Christian > > > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
