Method cross

extlibs/soloud/src/core/soloud_core_3d.cpp:82–91

		}

		vec3 cross(vec3 a)
		{
			vec3 r;

			r.mX = mY * a.mZ - a.mY * mZ;
			r.mY = mZ * a.mX - a.mZ * mX;
			r.mZ = mX * a.mY - a.mX * mY;

			return r;
		}
	};

	struct mat3