When you create a stereo display region, a StereoDisplayRegion is created, but this points to two DisplayRegions (one for left and one for right) that are also added to the window. These do the actual drawing.
When you create a stereo display region, a StereoDisplayRegion is created, but this points to two DisplayRegions (one for left and one for right) that are also added to the window. These do the actual drawing.