[aznan]

Thank you for directing me towards the cave module. I'm having some trouble with understanding quaternions for the cave's update function, though. I'm not familiar with quaternions, but a quick Google search indicates that they are used for describing a rotation, rather than a direction. How am I supposed to translate the direction of the eyes to a rotation?

Since I only keep track of one point, and not one for each eye, I assume that the user is always looking toward the center of the table. So I calculate a vector from the head's position to the table. Is it possible to somehow convert this vector into a quaternion? Or is there a better way to indicate where the user is looking? I will need this to get a proper stereo projection.