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visualize3D[points,colors,options] is a 3-dimensional version of visualization.

The colors may be an integer, color function, or the string "Random"; if fewer colors then points are specified, the last color in the list is used.

If color=-1, then Mathematica's standard Lighting functions are used. If color="Random" then a random RGBColor is generated.

Implementation note: The convex hull of each cell in the boundedCellVoronoi diagram is plotted using convexHullSurface.