"JWV" <jwv|at|planet.nl> killed the keyboard with:

> I made a simple macro to create rounded boxes, so you dont't have to
> fool around with slow superellipsoids. My RoundedBox renders in 1/3 (!)
> of the time of a superellipsoid. There are some drawbacks, but it might
> be usefull.

have a look at "shapes.inc"

especially
Round_Box_Union(PtA, PtB, EdgeRadius),
Round_Box_Merge(PtA, PtB, EdgeRadius) and
Round_Box(PtA, PtB, EdgeRadius, UseMerge)

HTH

Wolfgang
-- 
   .-.   This is Linux Country.
   /v\   On a quiet night, you
 /(   )\ can hear Windows reboot.
  ^^ ^^  LFS-No.: 120

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