Hi, i have the same problem .... I have a system where graphic board (nvidia K5000) must be setted to 60Hz, and a projector able to go to 120Hz (between graphic card and projector there are 2 devices that work only to 60 Hz). To visualize stereo 3D, this system uses a player like butterfly3D (or BINO, http://bino3d.org/doc/bino.html#Overview-1). It loads a syde-by-syde left-right movie (60 Hz) and sends an alternating left-right (60Hz) to projector. The projector (Vivitek D5380U), receives a 60Hz input signal and visualizes a type of stereo (like quad buffer) at 120Hz. It seems to duplicates the frequency. Using Bino, stereo works (quite correctly). I would like to visualize OSG application in stereo mode (using the same approach), on this system. My question is : If i use quadbuffer stereo forcing frequency to 60 Hz, do i get the same result? This becouse i have no side by side source. So i suppose that with a slow quad buffer, i can simulate the alternating output to projector. Is it possible to force quadbuffer to 60Hz? On a common workstation with nvidia quadro 600, using a 60Hz monitor and use quadbuffer stereo, i see the alternating frames slower than on 120 Hz monitor. This is the reason for forcing the quadbuffer to 60Hz. I try to direct execute quadbuffer on the system with openscenegraph application, but i don't see the alternating images (i get also an error : detect OpenGL error 'invalid operation' at after RenderBin::draw(...). I see a single image (like mono view).
Thank you! Cheers, Andrea ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=62389#62389 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
