Thanks Robert, no problem take your time for other new features. in the mean time i will progress in PSSM as well...
regards adrian 2008/5/21, Robert Osfield <[EMAIL PROTECTED]>: > Hi Adrian, > > I've got my head down dealing with some other complex areas of the OSG > right now - it's even a multi-threaded part... so I'm not in a good > place to dive into discussion about other complex areas. Give me a > week and I'll be a in better position. > > Robert. > > On Wed, May 21, 2008 at 8:01 AM, Adrian Egli OpenSceneGraph (3D) > <[EMAIL PROTECTED]> wrote: >> Hi Robert, Hi others, >> >> as you may get from the latest mailing list topics on Parallel Split >> Shadow >> Maps implementation and fixes, we get some flickering effect in the shadow >> if we are working in multi-threaded osgShadow.exe example. By add the >> --SingleThread parameters, it works fine, no more flickering effect. (some >> one reported that they have to add also --screen 0, but this not the same >> problem, i guess) so back to the multi-threading issue we have in osg or >> at >> least in pssm. >> >> i guess the problem comes from a bad synchronisation or may we don't >> have >> yet a the camera synchronised or describted in a dependencie graph. >> because in pssm we render (a-c) shadow maps into RTT and then we render >> the >> whole scene as >> default viewing camera master m. the a-c should be finish before we start >> to >> render the visible / master camera. because the shadow maps are view >> depended to the m. >> >> what are we doing: >> >> cull , update all pssm shadow map cameras, render/draw the shadow map >> cameras, render the scene with GLSL based on the shadow map texture. >> >> how can we synchronise this step, it seams not to be enought to work with >> render order prerender nestedrender or postrender. >> >> thanks for short describtion how it works in osg, and how we should fix >> the >> problem we have. >> well for the moment we have a robust working PSSM for singlethread, and >> this >> isn't so bad, but it should also work for other settings. >> >> regards >> adrian >> >> -- >> ******************************************** >> Adrian Egli >> _______________________________________________ >> 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 > -- ******************************************** Adrian Egli _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
