Hi Cor, The OSG is better engineered for muli-threaded multi-context work as it's heritage is in vis-sim and VR, so very much the type of use that one would use with a HMD. Members of the community are alreayd experiementing with Oculus Rift support so do some searches to see the latest of this development.
As for performance, you really have to cut your cloth to the cloth you have, if you are rendering to two displays that you have twice as much geometry work to do, but if the display is lower res than a typical desktop then pixel load might be lower. There is no reason why you should be able to achieve good graphics quality with modern graphics card on a HMD but you'll just need to balance the complexity of the scene you render to the performance metrics you are after. W.r.t latency you'll need to avoid SLI/Multicard altenate frame rending by the driver if you are using two cards as this will screw up latency big time. You will also want to avoid stuffing too many frames down to the grpahics card so use of sync barrier might be appropriate. In immerisve work you'll want low latency and also constist frame rate, this trumps visual effects as if you compromise either of these the user will loose their feeling of immerision and likely feel sick. Robert. On 15 July 2013 10:46, Cor Jansen <[email protected]> wrote: > Hi, > > I'm looking for a graphics engine for a flight simulator using a HMD like the > Oculus Rift. > Because of the HMD I need a very low latency. But I also would like very high > graphics quality. > > Which of the following two approaches would be best? > A. > Use some high quality game engine and switching off all features that result > in high latency. Thus lowering the latency. I do not know if there will still > be high enough quality graphics left. > B. > Use OSG and add features for higher quality graphics witout adding to much > latency. I do not know if that is doable. > > I think the big advantage of B (using OSG) is that I have full controll of > the rendering. So low latency may be easier to get. But how difficult wil it > be to add features to get high quality graphics? > > I hope you guys can give some usefull comments on this. > Thank you! > > Cor > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=55216#55216 > > > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
