I'm thinking of creating a simple dual webcam setup for testing OpenCV's stereo depth map feature. All the examples and descriptions I've seen setup the cameras in a fixed position, pointing them straight ahead with their line-of-sight perfectly parallel to each other.
Are there any cases where the cameras are mounted on separate movable axis where they can slightly rotate side to side, in order to "focus" them on a specific point closer or farther away? I'm thinking of a process similar to how the human eye rotates side to side in order to focus on different depth ranges.
Can OpenCV make use of this ability, or does it assume fixed cameras?