I am struggling with the same/similar issue. I want to set the transparency level dynamically ( the user has a slider) of a "group" in my scene. My understanding is that apart from setting the state GL_BLEND etc it is required to traverse/visit all of the nodes of the sub-graph setting the alpha component of each color value encountered to the requested alpha value.
It just seems like such a common requirement I am surprised that there is not a NodeVisitor to do this? Or am I missing something here. Andrew ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=13719#13719 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
