virtual reality and "virtainment"

There are many ways in which Virtual Reality (VR) can be used for entertainment purposes. Virtual reality amusement ("virtainment") spans Virtual Reality (VR) games, 3D movies, virtual pets ("virpets"), Virtual Reality (VR) television, and other entertainment uses. For these reasons, is it no surprise that many people still think of virtual reality mainly in terms of amusement -- despite it's being increasingly used in education, medicine, applied science, product development, exploration, information processing, real estate, and many other uses. Linked page 3D Studio MAX also has further info.

Your two eyes see things from two intersecting angles. Even though your two eyes see two different images, they function synergistically and your brain merges the two images into one picture with depth perception. The muscles in both eyes alter the position of one's eyes to create one picture of the object , which is called axial convergence. Also, the lenses in both eyes change shape to change the focus distance of the object -- called accommodation. This is known as parallax vision. Realistically artificially creating parallax vision in virtual reality is challenging. How can a person cause one's eyes to see two different pictures? How far away should the pictures be? In the event that the pictures are too distant, then the screen might be too small to span enough of the range of sight. If the screen is too nearby, then muscles that achieve axial convergence and accommodation may fight with each other. If you are interested, then also see VR site Virtual Tours Vermont for more.

Linked page Virtual Reality also deals with these topics.