MAJOR BUG. Running ApplyViewport more than once breaks the viewport for BOTH stereo eye renders. Figure this out! Making a backup cause I haven't in ages
Shaders working, stereo rendering working barely. Right eye is doing some model movements. A bad matrix perhaps?
Head tracking and proper projection mapping for stereo rendering functioning. Need to figure out how the input manager gets coordinates from the view so hotspots match up with the camera. Head tracking yaw and pitch is backwards.