"the_ajj" <adr### [at] tiscalicouk> wrote:
> aoi??

http://www.google.com/search?hl=en&q=megapov+aoi ;)

Short for "angle of incidence":

The value returned by this pattern is proportional to the angle between a
certain ray and the (perturbed) normal at the surface of the object. The
range of returned values goes from 0 to 1. (from
http://megapov.inetart.net/manual-1.2.1/patterns.html#aoi_pattern)

Regards Roman

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