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UCracking02A

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Cracking (aka subdivision) of triangular geometry. Uses ArrayList to efficiently handle storage of new triangles while removing old ones after they've been subdivided. This version builds starting shape using a UGeometry instance built from an array of vertex lists. UFace instances are extracted and used to initialize the custom Poly class, allowing us to construct a complex starting form. Other subdivision implementations: http://ncodescripting.blogspot.be/2010/06/subdivision.html http://formativecomplexity.blogspot.com/2012/02/aranda-lasch-seattle-public-library.html
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