Existing in a Real World, we rely upon perceptual avenues to gain access to virtual spaces. That perception is rooted in the body is indisputable, yet the models of how this happens are still unclear. Nevertheless, incorporating the entire body into the perceptual interface, using its mass and sizes, allows the compositor of virtual spaces to coopt the complex developments that places our perceptual selves in our bodies, leading to more convincing and thus more interesting other realities. In this sense the user is not relieved of their body, rather accessoried and the perceived space becomes an explicitly mixed reality.
Keywords: SPIN: Spherical Projection Interface, Perception,
Body, Embodiment, Biomechanics, Proprioception.