public V2d Intersect(V2d dirVector)
{
if (Origin.Abs().AllSmaller(Constant <double> .PositiveTinyValue))
{
return(Origin); // Early exit when rays have same origin
}
double cross = Direction.Dot270(dirVector);
if (!Fun.IsTiny(cross)) // Rays not parallel
{
return(Origin + Direction * dirVector.Dot270(Origin) / cross);
}
else // Rays are parallel
{
return(V2d.NaN);
}
}
public V2d Intersect(Ray2d r)
{
V2d a = r.Origin - Origin;
if (a.Abs().AllSmaller(Constant <double> .PositiveTinyValue))
{
return(Origin); // Early exit when rays have same origin
}
double cross = Direction.Dot270(r.Direction);
if (!Fun.IsTiny(cross)) // Rays not parallel
{
return(Origin + Direction * r.Direction.Dot90(a) / cross);
}
else // Rays are parallel
{
return(V2d.NaN);
}
}