1) vizcave will account for the head position relative to the projection surface and tweak the projection matrix so that the virtual objects appear physically correct. In order for this to work in stereo, you will need to know the position of the left and right eye, or the center position/rotation of the eyes. If you are mostly standing in place and viewing some 3D objects, then vizcave might be unnecessary. I would suggest trying it out once so you can form your own opinion about it.
2) You can use the
viz.fullscreen.monitor option to control which monitor Vizard will go fullscreen on. If you want to go fullscreen on monitor 2, then you would use the following code:
Code:
import viz
#Tell Vizard to go fullscreen on monitor 2
viz.setOption('viz.fullscreen.monitor',2)
#Create window
viz.go(viz.FULLSCREEN)