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1993-03-24
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Press Release
The Virtual Reality Alliance of Students and Professionals (VRASP)
announces a new development in Virtual Reality software for IBM compatible
personal computers. This technology uses a pair of Power Gloves (originally
sold for the Nintendo Entertainment System) to allow two people to
simultaneously manipulate objects in a virtual world. It is based on REND386
written by Bernie Roehl and Dave Stampe, which originally provided support
for only one Power Glove. Mark Pflaging, Vice President of VRASP, has
grafted his own Power Glove program into REND386 to enhance its
capabilities. The addition of another Power Glove increases the capability of
the system by allowing cooperation (or competition) between two people when
selecting, moving, and rotating objects that are part of a three dimensional
system. REND386 also includes the capability to generate stereoscopic views
compatible with Sega 3D glasses or the Toshiba 3 Dimension Scope. The cost
of this system is very low even though it rivals much more expensive systems
in some ways. Beyond the cost of the computer itself, a complete two user
system can be assembled for under $400, which would include two gloves and
two pairs of 3D glasses. VRASP sells Power Gloves and Power Glove
connectors, and will begin selling connectors for 3D glasses as well. The
software itself is free to avoid patent infringement (it may not be resold).
Each person sees the same view of the virtual world (on one computer
monitor) but there are two separate "disembodied hands" that reflect the
position and posture of the users' actual hands. The composition of the world
is determined by data files, and there are several such "world files" available.
A joystick or keyboard is used to navigate the world (though it will soon be
possible to use one of the gloves to navigate.) Each person can "select" a
different virtual object by "pointing" at it. If the user makes a fist, the selected
object follows the motion of the user's hand. The object can be rotated (tilted)
by making a "pinch" gesture. The two participants can be manipulating
separate objects without restriction. If both people select the same object, the
controlling user is determined dynamically: The last person to make a gesture
is the one who has control. For example, one person may be moving an object
with a "fist" gesture. If the second person makes a "pinch" gesture, the first
person can no longer move the object; instead, the second person is now
rotating the object. If the first person then flattens his hand and re-forms a
fist, then they could again have control. This level of interactivity in Virtual
Reality has not been previously achieved with such minimal hardware
requirements. This software and hardware will be
exhibited at the Virtual Reality Systems conference in New York March 15-17
and at IEEE's Electro Conference in Piscataway, New Jersey April 27-29.
VRASP is proud to bring this news to you first and provide you
with the means to put together a low-cost PC Virtual Reality system.