Hi, sorry to ask questions about such a classic topic but I've read lot of things about Datavariance and would like to be sure about some points :
I've read in osg guides that the datavariance of a Drawable (and all subclasses) and a StateSet must be set the DYNAMIC if we plan to modify its data during object's life. This is clear. But I also read in the QuickStart Guide in the Cow example (page 96) that the coder set the datavariance of a MatrixTranform to DYNAMIC because he will modify the matrix values in a callback... So : do we need to set the datavariance to DYNAMIC for any osg Node that we want to act on in a callback ? That point is not clear for me. If yes, for example do we need to set a DYNAMIC datavariance for a switch node as soon as we are going to modify its children enable states in a callback ??? Thanks a lot for your clarifications Thank you! Cheers, Eric ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45471#45471 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
