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Line 7: ===GRASS=== The original version of GRASS was developed by [[Tom DeFanti]] for his 1974 [[Ohio State University]] Ph.D. thesis.{{sfn\|DeFanti\|1980}} It was developed on a [[PDP-11]]/45 driving a [[Vector General 3D\|Vector General 3DR]]R display.{{sfn\|DeFanti\|1980}} As the name implies, this was a purely [[vector graphics]] machine. GRASS included a number of vector-drawing commands, and could organize collections of them into a hierarchy, applying the various animation effects to whole "trees" of the image at once (stored in arrays).{{sfn\|DeFanti\|1980}} After graduation, DeFanti moved to the [[University of Illinois at Chicago\|University of Illinois, Chicago Circle]]. There he joined up with [[Dan Sandin]] and together they formed the ''Circle Graphics Habitat'' (today known as the ''[[Electronic Visualization Laboratory]]'', or EVL). Sandin had joined the university in 1971 and built the [[Sandin Image Processor]], or IP. The IP was an [[analog computer]] which took two video inputs, mixed them, colored the results, and then re-created TV output. He described it as the video version of a [[Moog synthesizer]].{{sfn\|DeFanti\|1980}}

GRASS (programming language): Difference between revisions