Via NURBS (Non-Uniform Rational B-Spline) is the standard
way to model organic shapes in Maya. NURBS consist of four-sided patches that
are often perplexing to artists who are fresh to Maya. At present, you cannot straight
manipulate a NURBS surface; modeling occurs when you manipulate hulls and
control vertices (CVs). Manipulating patches requires that you pay cautious
attention to surface UV parameterization. Edge and worldwide stitching
ostensibly ensure smooth joins between patches; unluckily, keeping edges joined
through animation can be difficult. Also, without a 3D paint program (such as
Deep Paint), texturing
NURBS with complex picture maps can be problematic.
Nevertheless, NURBS surfaces are efficient; so they animate rapidly; and
properly built, they provide an extremely organized surface that you can with
no trouble convert to polygons.
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