Varrier is a head-tracked autostereo virtual reality display. Varrier was developed as a part of our efforts to create a "freer VR" experience; one that affords users an effective sense of immersion without the burden of special glasses, wires or controllers where you can simply walk into a room and be fully immersed in an interactive 3D world.
In the Varrier method, a virtual barrier screen is created simulating the physical barrier screen and placed in the virtual world in front of the projection plane. An off-axis perspective projection of this barrier screen, combined with the rest of the virtual world, is projected from at least two viewpoints corresponding to the eye positions of the head-tracked viewer.
My role as a research programmer working on Varrier at Electronic Visualization Laboratory (EVL) was to co-create the initial varrier algorithm with Dan Sandin. I wrote most of the first software applications to test and use the Varrier system. I also had a lead role in developing the single display and 35 panel tiled display hardware prototypes. Additionally, I assisted with writing grant applications and reviews to help fund the project.
The Varrier system was created by EVL at UIC with support of the NSF, DoE and NTT