Virtual Body Presentation.pdf

The Virtual Body

Quest of the Avatar

By Brent Rossen

A brief History and

Implementation of Virtual Bodies

Presentation Outline

Origin of the Avatar and the Virtual

Body

●

The challenges and goal of using Virtual

Bodies

●

Overcoming space limits, creating

metaphors, and tracking

●

Origin of Avatar

Avatar is derived from

Sanskrit, and it means

“incarnation”, usually

implying a descent of a

god into mortal realms

for a special purpose.

●

1985 – Ultima IV, the

first use of “Avatar” as

meaning virtual

representation

●

Origin of Virtual Body

● 1992 – The term Avatar

was popularized in the

novel Snow Crash (by

Neal Stephenson) to

mean Virtual Body.

● Now, Avatar is

commonly used as any

representation of a

person in a computer

generated environment,

including forums and

chat clients.

The Avatar vs. The Virtual Body

Avatar: a user's representation of himself or

herself in a computer generated world.

– Note, there is no intrinsic relationship between the

movements of the user and the avatar.

●

Virtual Body: a representation of the human body

consistent with some internal model of

proprioception.

– The virtual body is positioned based on movements of

the real body

●

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