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Shapes can be scaled by any factor. Shapes are enlarged (increases) or shrunk (diminishes) by a scale factor. The result of scaling is a similar shape (in the geometric sense) to the original.
Learn about the scaling shapes at Wikipedia.org
Defaults:
var obj = sphere(5) scale(2,obj) scale([1,2,3],obj)
The CSG library functions can also be used. NOTE: Deprecated in the V2 API
obj.scale([1,2,3])