3 Replies Latest reply on Apr 29, 2013 2:37 AM by chm

    Framelock with 3D Stereo Content (multiple v7900 and S400)


      Hi All,

      I'd to sinchronize 5 workstations equipped with a FirePro v7900 and S400, each connected to 4 identical projectors (120Hz HD-Ready).

      S400s are chained connected others using ethernet cables, to the workstation which generate sync signal, is connect an IR emitter for Active shutter glasses.

      How can i sync 3D stereo Contents between workstations? The Framelock seems not to work on 3D Stereo Content: frames are locked, Left and Right BACK_BUFFERS are randomly swapped between walls (projectors on same workstation are well synchronized).


      I'm trying to synchronize glut applications using glutSwapBuffers.

      I also tried using this code:

      bool ret = wglQueryMaxSwapGroupsNV(mhDC, &nMaxGroups, &nMaxBarriers);

      if (nMaxGroups > 0 && nMaxBarriers > 0){

      if (!wglJoinSwapGroupNV(mhDC, nGroup))


      if (!wglBindSwapBarrierNV(nGroup, nBarrier))



      but same result.


      Which function i should use to syncronize correctly Stereo Contents?