Hi Paul, The easiest way to do it is use an osg::AutoTransform, this is like a Billboard but can rotate to screen a whole subgraph rather than just drawables. Billboard is lightweight for things like trees, but AutoTransform is more flexible.
Robert. On Tue, Sep 28, 2010 at 11:03 AM, paul graham <pd...@hotmail.com> wrote: > Hi, I'm hoping someone can help. I'm trying to develop an in-scene 'label' > for my 3D objects (consisting of text and geometry). I was hoping I'd be able > to use the osg billboard and add my geometry and text to it as drawables, but > I now realise that each drawable will have its own pivot point, so my text > and geometry will become misaligned. > > Is there a way to massage the billboard such that it 'groups' all its > children and effectively applies a single transformation about a single pivot > point (hence keeping the text and geometry in the same plane)? Or can anyone > suggest a simpler / better approach to the problem? > > Just to reiterate - I'm trying to create screen-facing labels to insert into > my 3D scene - the label needs to support text and geometry. Any advice on how > to best approach this is much appreciated - I'm hoping someone has tackled a > similar problem in the past. > > Many thanks > > Paul > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=32125#32125 > > > > > > _______________________________________________ > 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
