Function triangleNormal

Vector!(float,3) triangleNormal (
  Vector!(float,3) p1,
  Vector!(float,3) p2,
  Vector!(float,3) p3
) nothrow @safe;

Vector!(float,3) triangleNormal (
  ref float[3] p1,
  ref float[3] p2,
  ref float[3] p3
) nothrow @safe;