“Garnet Vision” by Iwata
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Conference:
- SIGGRAPH 1997
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More from SIGGRAPH 1997:
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Type(s):
Entry Number: 14
Title:
- Garnet Vision
Program Title:
- Electric Garden
Presenter(s):
Collaborator(s):
Project Affiliation:
- University of Tsukuba
Description:
Visual immersion plays an important role in virtual environments. A head- mounted-display (HMD) provides full solid-angle views of virtual space. However, the HMD’s optical system limits its field of view. One alternative display system is a large screen. Another alternative is a dome screen or
a cubic screen. But those alternatives require large theater-like spaces, which restricts their general use for computer-human interaction. Moreover, existing configurations of large-screen systems do not provide full solid- angle perspectives around the viewer.
In Garnet Vision, the emphasis is on how to build a full solid-angle display in a limited space. Two criteria were established to optimize space utilization:
1 Pixel efficiency (how many pixels are projected on each polygon of a polyhedral screen).
2 Space efficiency (the ratio of displayed polyhedra to overall dead volume of the rear-projection screen).
Thorough examination of these criteria led to selection of a rhombic dodecahedron. The dodecahedron screen, in which a viewer can stand, was built with 12 projectors in a space the size of a normal room. Each projector also has a speaker that generates sound.
