/// Smallest volume of the intersecting elements in the transformed space that will be returned as non-zero.
/// Since the scale is always the same in the transformed space (the target tetrahedron is unitary), this number is independent of the scale of the meshes.
/// Smallest volume of the intersecting elements in the transformed space that will be returned as non-zero.
/// Since the scale is always the same in the transformed space (the target tetrahedron is unitary), this number is independent of the scale of the meshes.