Hi Peter, On Tue, Mar 17, 2009 at 9:30 AM, petr <osgfo...@tevs.eu> wrote:
> first q: > -------- > I have got in a root group tree nodes > 1st - the scene (cca 300 triangulates+7 types of textures ) > 2nd - the tank t72-tank_des.flt > 3rd - the personal car (very simple cca 200 triangulates) > two cameras - one is fulscreen, the second is small rectangle in the midle > of the screen on the top. > > Could you you explain me why the view is discontinuous (the quality is > very(!) terrible) ? > I have found that when I'am using the only camera - like fullscreen, the > discontinous view can be "removed" by these function > viewer->startThreading(); - the quality is absolutely briliant! > Could you explain me what does it mean "threading", this word is in a > dictionary - of course, but i would like to know what does the function do > in osg. - or what does it "looking after" ... I can't see how we could answer this without at least a screenshot of what you mean by "discontinuous", and what you expect the result to look like. > second q: > ----------- > Why does a nodes take so long to load? For example - first node the scene > takes in Vega cca 3-4 seconds and now in OSG it takes cca 15 sec. > (The one our big scene cca 20 000t is loaded by 10sec in Vega, but in Osg > it takes almost 1 min) Try converting your models to native OSG format. OpenFlight really sucks for loading performance as the database requires a lot of pre-processing to get into a shape that is suitable for rendering. I would strongly recommend converting to .ive for any visual simulation app. > > pc config: > cpu: Intel 3.2Ghz > Grapic card: GeForce 7600GT/PCI/SSE2, 256MB ram, silent pipe > Monitor resolution: 1280x1024 > rendering test by OpenGL Extension Viewer 3.0: > 1.1 109 FPS > 2.0 104 FPS > 2.1 066 FPS > > Thanks a lot for your replies. > I have no clue what your above 1.1 109 FPS stats relate to, is it anything to do with the OSG? Robert.
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