Function ncollide_utils::tetrahedron_signed_volume

pub fn tetrahedron_signed_volume<P>(p1: &P, p2: &P, p3: &P, p4: &P) -> P::Vect::Scalar where P: Point

Computes the signed volume of a tetrahedron.

If it is positive, p4 is on the half-space pointed by the normal of the oriented triangle (p1, p2, p3).