Hi Forest, The GPU draw time is just that the GPU draw time, it is unrelated to anything on the CPU unless the OpenGL fifo is full, and if this is the case then the draw dispatch will block and then CPU draw dispatch and GPU draw times will be rather similar, but this isn't the case - you are absolutely GPU limited.
Robert. On Tue, Dec 2, 2008 at 2:53 AM, forest37 <[EMAIL PROTECTED]> wrote: > hi Robert , > Thanks for your help. > I didn't describe my problem clearly.I want wo konw something about OSG > thread model.Take the single thread model for enstance,the time of one frame > is the sum of event,update,cull and draw .Does it include the GPU draw > time?(I am not sure,but I think it doesn't).So ,if the first frame's draw() > function is finished,the second frame's event() function will be executed > immediately no matter the GPU finishes all the OpenGL commands(am I > right?).And if the GPU draw time is longer than the frame time,maybe the > first frame's opengl commands haven't been finished ,the second frame's > opengl commands will come.Will that happen? > > best regards > > forest > > > ________________________________ > [广告] 金秋最关注楼盘-房不胜房 > _______________________________________________ > 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
