Hi Carsten, I tried to add a usleep, but the behavior didn't change, therefore, I uploaded a screenshot to picpaste
http://www.picpaste.com/ace364df969ce68907ae34d443b55312.jpg The artifacts are stable, i.e. they don't change while the simulation is running, or lets say, some movie is playing in quicktime (i use mac os x). I use the coordinate system of the physics engine, therefore, the ground plate is z = 0, and upwards in the scene is z>0, downwards is z<0. The camera is located higher than the walking machine, hence, i looks into negative z direction. if i rotate the camera towards positive z-axis, the artifacts disappear, and don't show up anymore. It happens with any shadow mode (I tried them all, with different smoothness parameters). Cheers, Keyan On 8 Nov 2011, at 19:31, Carsten Neumann wrote: > Hello Keyan, > > On 11/08/2011 11:51 AM, Keyan wrote: >> shadows work fine, for one exception. When I start my application, I have >> artifacts, e.g. fragments of the screen saver of the last movie I watched in >> my application window. They disappear, and never appear again, if I rotate >> the camera towards the z-axis. I start my app with the camera pointing >> towards the negative z-axis. > > that probably is the content of a FBO that is used before it is written > to, so you see whatever happens to be there in graphics memory. In that > case it should only happen on the very first frame that is rendered, do > you only render frames on demand (i.e. if the camera moves) or do you > continually render? > >> if i start my application with setShadowOn(false), this behavior does not >> occur. Am I missing some important initialization? I copied the shadow code >> from the testShadowST2.cpp. > > Hmm, could also be a bug in the implementation of the ShadowStage. Which > shadow mode do you use? > > Cheers, > Carsten > > ------------------------------------------------------------------------------ > RSA(R) Conference 2012 > Save $700 by Nov 18 > Register now > http://p.sf.net/sfu/rsa-sfdev2dev1 > _______________________________________________ > Opensg-users mailing list > Opensg-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/opensg-users ------------------------------------------------------------------------------ RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 _______________________________________________ Opensg-users mailing list Opensg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/opensg-users
