InnerPolyhedron

InnerPolyhedron[poly] gives the inner polyhedron of the polyhedron poly.

Examples

Get the inner polyhedron of a stellated shape:

InnerPolyhedron[PolyhedronData["GreatStellatedDodecahedron"]]

Compute the inner polyhedron of a custom polyhedron:

poly = ConvexHullMesh[RandomPoint[Sphere[], 20]];
InnerPolyhedron[poly]

Please visit the official Wolfram Language Reference for more details.