I am actually experiencing somewhat the same thing you are experiencing. All of our text is rendered on a different layer, which is usually the highest render bin, so it can be viewed above all other shapes. Each layer first clears the depth buffer before each shape for that layer is rendered. The layer here consists of a render bin that all the shapes are dumped to. What I am seeing is the text starts rendering above all others, but then, after several render passes, the text start rendering as if depth testing is turned on. Shapes from lower layers seem to occlude the text shape. This is strange behavior. I would expect one or the other.
I have not looked into the code quite yet, since I wanted to see if anyone else has experience the same problem. I will post my findings later. Ryan Kawicki Software Engineer The Boeing Company Training Systems and Services -----Original Message----- From: Andreas Ekstrand [mailto:[EMAIL PROTECTED] Sent: Tuesday, October 03, 2006 3:43 PM To: osg users Subject: Re: [osg-users] Drawing text over geometry Hi Robert, I do see the difference when commenting out the depth test setting in your example, the surface directly beneath the text partly occludes it with depth test turned on, so it does work to some extent. But when viewing your text on the earth surface "edge-on", I can observe that the earth is occluding your text. Is there some sort of culling going on? Can you see the text behind the horizon? I guess you should be able to do that if depth test is switched off. Or perhaps there's some obvious reason I can't see right now, due to lack of sleep or something... /Andreas Robert Osfield wrote: > HI Andreas, > > In the new osgfadetext example I switch off the depth test and it > works fine for me. Could you try out this new example in CVS? > > Robert. > > On 10/3/06, * Andreas Ekstrand* <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > Hi, > > I'm trying to let my osgText::Text always lie on top of other > geometry. > I have a state set applied directly to my osgText::Text for which > I have > turned off GL_DEPTH_TEST, created an osg::Depth with a (0,0) range > and > dropped it into a render bin higher than everything else. Still, it > doesn't work. Since the problem with protecting state modes and > attributes for osgText::Text has now been fixed, I'm a bit surprised > seeing this behavior. Any idea what's going on? > > /Andreas > > -- > ________________________________________________________________________ > Andreas Ekstrand > Remograph > Rekrytgatan 10 > SE-582 14 Linköping > SWEDEN > Website: http://www.remograph.com > E-mail: [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > > _______________________________________________ > osg-users mailing list > [email protected] <mailto:[email protected]> > http://openscenegraph.net/mailman/listinfo/osg-users > http://www.openscenegraph.org/ <http://www.openscenegraph.org/> > > >----------------------------------------------------------------------- >- > >_______________________________________________ >osg-users mailing list >[email protected] >http://openscenegraph.net/mailman/listinfo/osg-users >http://www.openscenegraph.org/ > -- ________________________________________________________________________ Andreas Ekstrand Remograph Rekrytgatan 10 SE-582 14 Linköping SWEDEN Website: http://www.remograph.com E-mail: [EMAIL PROTECTED] _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/ _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
