Hello Daniel, That is basically true. I want to get a feeling about DisplayLists and VBOs. I know that the display list is a precompiled sequence of OpenGL commands. That is the reason that I tought the display lists should be faster. But the question isn't the comparison, but the slow render performance when I want to use display lists. I think everything is wrong in my implementation. But I don't know what.
Cheers Martin -------- Original-Nachricht -------- > Datum: Tue, 28 Feb 2012 11:37:36 +0100 > Von: Daniel Trstenjak <daniel.trsten...@science-computing.de> > An: OpenSceneGraph Users <osg-users@lists.openscenegraph.org> > Betreff: Re: [osg-users] Slow rendering with displaylist. > > Hi Martin, > > > I am surprised about my little test program. I would like compare > > displaylists with frame buffer objects. Because, I suppose that the > > displaylists have to be faster than the vbo, because the displaylists > > are precompiled. But in my example I get another result: > > I think what you're testing is the performance difference between vertex > data on system memory and vertex data on graphics card memory. > > It doesn't makes that much sense to compare displaylists with fbos, > because displaylists are about opengl commands and fbos about opengl data. > > > Greetings, > Daniel > > -- > > > Daniel Trstenjak Tel : +49 (0)7071-9457-264 > science + computing ag FAX : +49 (0)7071-9457-511 > Hagellocher Weg 73 mailto: daniel.trsten...@science-computing.de > D-72070 Tübingen WWW : http://www.science-computing.de/ > > -- > Vorstand/Board of Management: > Dr. Bernd Finkbeiner, Michael Heinrichs, > Dr. Roland Niemeier, Dr. Arno Steitz, Dr. Ingrid Zech > Vorsitzender des Aufsichtsrats/ > Chairman of the Supervisory Board: > Philippe Miltin > Sitz/Registered Office: Tuebingen > Registergericht/Registration Court: Stuttgart > Registernummer/Commercial Register No.: HRB 382196 > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- NEU: FreePhone 3-fach-Flat mit kostenlosem Smartphone! Jetzt informieren: http://mobile.1und1.de/?ac=OM.PW.PW003K20328T7073a _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
