Hi,
The “x y” of win-origin refer to the desktop coordinates of the upper-left corner of the window. For instance, “win-origin 1280 0” would open a window at desktop coordinate (1280, 0), which might be where the first CAVE projector is located on your desktop (assuming you have a 1280x800 desktop and you have arranged your screens to the right of your primary desktop).
But it’s usually better to open one single large window that covers the entire desktop, and subdivide into DisplayRegions, instead of trying to open a different window for each projector. Here’s a thread topic where we had a similar discussion:
[OpenGL (extended monitors) error)
As to your move camera task, I suggest you simply move base.camera, which is the parent node of all of the cameras in base.camList, rather than trying to move the individual cameras separately. Moving base.camera will work regardless of how many cameras you have.
David