setFromCoplanarPoints method
Implementation
Plane setFromCoplanarPoints(Vector3 a, Vector3 b, Vector3 c) {
final normal =
_vector1.sub2(c, b).cross(_vector2.sub2(a, b)).normalize();
// Q: should an error be thrown if normal is zero (e.g. degenerate plane)?
setFromNormalAndCoplanarPoint(normal, a);
return this;
}