> I am surprised you saw a boost with disable double precision. What specific > element you do you change w.r.t double precision?
I enabled OSG_USE_FLOAT_MATRIX and OSG_USE_FLOAT_PLANE and observed a 10% framerate improvement. Might be related to particle systems, which I forgot to mention I'm also using. > > For the change to double precision making a difference it's a hint that you > have a scene that is poorly balanced. > W.r.t. balancing, for exterior environments I have objects organized in a grid of 3x3 cells. A quad tree might yield better results. Main problem though is that I am restricted to runtime optimizations - the scene itself comes from a third party source that I am not at liberty to modify or distribute. The scenes were created for a game in 2002, so not surprising they're CPU bound on modern hardware now. I plan on trying the osgUtil::Optimizer at some point though I'm afraid I can only run it on individual models and not the whole scene - as the scene is tightly connected to game logics, scripting, physics, etc. > > Are you using CPU based animation? Could you shift it onto the GPU? > Yes and yes - I am using software skinning at the moment just because it works. I will try and move to hardware skinning later, but for now I am focused on porting the rest of my rendering code to OSG before optimizing more. Thanks, Jannik[/quote] ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=63421#63421 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
