smoking clover
:smoking clover: n. [ITS] A display hack
originally due to Bill Gosper.
Many convergent lines are drawn on a color monitor in such a way that
every pixel struck has its color incremented. The lines all have one
endpoint in the middle of the screen; the other endpoints are spaced one
pixel apart around the perimeter of a large square. The color map is
then repeatedly rotated. This results in a striking, rainbow-hued,
shimmering four-leaf clover. Gosper joked about keeping it hidden from
the FDA (the U.S.'s Food and Drug Administration) lest its
hallucinogenic properties cause it to be banned.
Jargon File Version 4.3.1, 29 JUN 2001 =
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