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[[Image:CAVE Crayoland.jpg|thumb|The CAVE]]
[[Image:CAVE Crayoland.jpg|thumb|The CAVE]]
−A '''cave automatic virtual environment''' ('''CAVE''') is a [[virtual reality]] environment where [[digital projector|projectors]] are directed to between three and six of the walls of a room-sized cube. The name is a reference to the allegory of the Cave in Plato's ''Republic''.
+A '''cave automatic virtual environment''' ('''CAVE''') is a [[virtual reality]] environment where [[digital projector|projectors]] show images on the walls of a room. The images are projected to at least three of the walls of a room-sized cube. The name is a reference to the allegory of the Cave in Plato's ''Republic''.
The CAVE was invented at the [[University of Illinois, Chicago]] [[Electronic Visualization Laboratory]] in 1992.<ref>{{cite journal|last1=Cruz-Neira|first1=Carolina|last2=Sandin|first2=Daniel J.|last3=DeFanti|first3=Thomas A.|last4=Kenyon|first4=Robert V.|last5=Hart|first5=John C.|title=The CAVE: Audio Visual Experience Automatic Virtual Environment|journal=Commun. ACM|date=1 June 1992|volume=35|issue=6|pages=64–72|doi=10.1145/129888.129892|s2cid=19283900 |issn=0001-0782|doi-access=free}}</ref> The images on the walls were in stereo to give a depth cue.<ref name="Carlson 2017 c094">{{cite web | last=Carlson | first=Wayne E. | title=17.5 Virtual Spaces | publisher=The Ohio State University | date=2017-06-20 | url=https://ohiostate.pressbooks.pub/graphicshistory/chapter/17-5-virtual-spaces/ | access-date=2024-04-12}}</ref>
The CAVE was invented at the [[University of Illinois, Chicago]] [[Electronic Visualization Laboratory]] in 1992.<ref>{{cite journal|last1=Cruz-Neira|first1=Carolina|last2=Sandin|first2=Daniel J.|last3=DeFanti|first3=Thomas A.|last4=Kenyon|first4=Robert V.|last5=Hart|first5=John C.|title=The CAVE: Audio Visual Experience Automatic Virtual Environment|journal=Commun. ACM|date=1 June 1992|volume=35|issue=6|pages=64–72|doi=10.1145/129888.129892|s2cid=19283900 |issn=0001-0782|doi-access=free}}</ref> The images on the walls were in stereo to give a depth cue.<ref name="Carlson 2017 c094">{{cite web | last=Carlson | first=Wayne E. | title=17.5 Virtual Spaces | publisher=The Ohio State University | date=2017-06-20 | url=https://ohiostate.pressbooks.pub/graphicshistory/chapter/17-5-virtual-spaces/ | access-date=2024-04-12}}</ref>