[OpenSCAD] Barnsley Fern recursive

Eric Buijs ebuijs at mac.com
Wed Sep 12 17:57:39 EDT 2018

Ronaldo, first I take my hat of for that code. It works perfectly (once I
translated the < to smaller than, <). I wasn't even aware of the C-style
for option in OpenSCAD and therefore discarded the possibility to use
iteration. The Barnsley Fern looks pretty neat taking only 1 minute and 18
seconds on my old computer. Thank you all guys.

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