Have you broken your terrain in to tiled regions such that each tile has its one geode/node and uses an distributed node graph so that nodes that are not need can efficiently be culled, or do you have all the tri' under one node ?
( is your scene graph more like the top one in this basic diagram http://www.vis-sim.com/imgdp/vp_db_partion_01.jpg ) Have you considered using LOD's, Paged LOD's OSV VPB ( aka osgDem ) __________________________________________________________ Gordon Tomlinson [EMAIL PROTECTED] IM: [EMAIL PROTECTED] www.vis-sim.com www.gordontomlinson.com __________________________________________________________ -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Joseanibal Colon Ramos Sent: Tuesday, September 09, 2008 8:08 PM To: OpenSceneGraph Users Subject: [osg-users] unrendered objects creating performance problems? Hi all, I was hoping someone has an idea about why I am encountering the following problem: I have a big terrain and on certain viewing angles it contains a huge amount of triangles to draw and puts a big strain on OSG's performance. I tried playing around with near/far clipping planes to improve performance, by cutting out a lot of the rendering, to the point only a very small fraction (and even none at all) of the terrain is seen through my camera. OSG's framerate, however, behaves just as if I was looking at the whole thing and drawing all the triangles. At certain angles, the framerate increases (where small number of triangles would normally be - even thought I don't see anything), and at other angles, it decreases (the same angles at which the viewer normally tries to draw a large number of triangles - even though I can't see anything). What is going on here?!? help! -J _______________________________________________ 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
