func (m *Mass) SetBox(density, lx, ly, lz Real) { C.dMassSetBox((*C.dMass)(m), C.dReal(density), C.dReal(lx), C.dReal(ly), C.dReal(lz)) }
// SetBox sets the mass for a box of given properties. func (m *Mass) SetBox(density float64, lens Vector3) { c := &C.dMass{} C.dMassSetBox(c, C.dReal(density), C.dReal(lens[0]), C.dReal(lens[1]), C.dReal(lens[2])) m.fromC(c) }