this is a Lightwave plug in that I stumbled across one day. A greeble or nurnie is a fine detailing added to the surface of a larger object that makes it appear more complex, and therefore more visually interesting.
The earliest recorded use of the term "greeble" found to date was by those working on the special effects for Star Wars — the group who would later become Industrial Light and Magic. They also described this design method as "guts on the outside".
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