public PLANE CreatePlane(Vector3 v1, Vector3 v2, Vector3 v3)
{
PLANE p = new PLANE();
Vector3 aux1, aux2;
aux1 = v1 - v2;
aux2 = v3 - v2;
p.normal.X = aux2.Y * aux1.Z - aux2.Z * aux1.Y;
p.normal.Y = aux2.Z * aux1.X - aux2.X * aux1.Z;
p.normal.Z = aux2.X * aux1.Y - aux2.Y * aux1.X;
p.normal.Normalize();
p.point = v2;
p.d = -(p.normal.X * p.point.X + p.normal.Y * p.point.Y + p.normal.Z + p.point.Z);
return(p);
}
public PLANE CreatePlane (Vector3 v1, Vector3 v2, Vector3 v3)
{
PLANE p = new PLANE();
Vector3 aux1, aux2;
aux1 = v1 - v2;
aux2 = v3 - v2;
p.normal.X = aux2.Y * aux1.Z - aux2.Z * aux1.Y;
p.normal.Y = aux2.Z * aux1.X - aux2.X * aux1.Z;
p.normal.Z = aux2.X * aux1.Y - aux2.Y * aux1.X;
p.normal.Normalize();
p.point = v2;
p.d = -(p.normal.X * p.point.X + p.normal.Y * p.point.Y + p.normal.Z + p.point.Z);
return p;
}