/// <summary>
/// Get intersection
/// </summary>
/// <param name="ray">Ray that is intersecting</param>
/// <returns>Intersection</returns>
public override Intersection GetIntersection(Ray ray)
{
Intersection p1 = a.GetIntersection(ray);
Intersection p2 = b.GetIntersection(ray);
if (p1 != null && p2 != null)
{
if (p1.t < p2.t && p1.t2 < p2.t2) // Objects overlap
{
p1.t2 = p2.t;
return(p1);
}
else if (p2.t2 > p1.t2 && p2.t2 > p1.t && p2.t < p1.t && p2.t < p1.t2)
{
return(null); //Object inside
}
else if (p1.t < p2.t2 && p1.t > p2.t && p1.t2 > p2.t && p1.t2 > p2.t2) // Objects overpal
{
return(null);
}
else if (p1.t < p2.t && p1.t2 < p2.t)
{
if (p2.t2 > 0.001)
{
return(p1); // Objects outside
}
else
{
return(null);
}
}
else if (p1.t > p2.t2 && p1.t2 > p2.t2)
{
return(p1); // Objects outside
}
else
{
return(null);
}
}
else if (p2 == null)
{
return(p1);
}
else
{
return(null);
}
}
/// <summary>
/// Get intersection
/// </summary>
/// <param name="ray">Ray</param>
/// <returns>Intersection if found, null otherwise</returns>
public override Intersection GetIntersection(Ray ray)
{
Intersection p1 = a.GetIntersection(ray);
Intersection p2 = b.GetIntersection(ray);
if (p1 != null && p2 != null)
{
if (p1.t > 0.001 && p2.t > 0.001 && p1.t2 > 0.001 && p2.t2 > 0.001)
{
if (p1.t < p2.t && p1.t2 > p2.t2)
{
return(p1); // p2 in
}
else if (p2.t < p1.t && p2.t2 > p1.t2)
{
return(p2); // p1 in
}
else if (p1.t < p2.t && p1.t2 < p2.t2 && p1.t < p2.t2) // overlay p1 sooner
{
p1.t2 = p2.t2;
p1.normalEnd = p2.normalEnd;
p1.pointOfIntersection2 = p2.pointOfIntersection2;
return(p1);
}
else if (p2.t < p1.t && p2.t2 < p1.t2 && p2.t < p1.t2) // overlay p2 sooner
{
p2.t2 = p1.t2;
p2.normalEnd = p1.normalEnd;
p2.pointOfIntersection2 = p1.pointOfIntersection2;
return(p2);
}
else if (p1.t < p2.t && p1.t2 < p2.t)
{
return(p1); //p1 sooner
}
else if (p2.t < p1.t && p2.t2 < p1.t)
{
return(p2); //p2 sooner
}
}
else
{
if (p2.t2 < 0.001)
{
if (p2.t < p1.t && p2.t < p1.t2)
{
p2.isIn = true;
return(p2);
}
else if (p2.t > p1.t && p2.t < p1.t2)
{
p2.t = p1.t2;
p2.normal = p1.normalEnd;
p2.pointOfIntersection = p1.pointOfIntersection2;
p2.isIn = true;
return(p2);
}
else if (p2.t > p1.t && p2.t > p1.t2)
{
p2.isIn = true;
return(p2);
}
else if (p1.t2 < 0.001 && p2.t < p1.t)
{
p2.t = p1.t;
p2.normal = p1.normal;
p2.pointOfIntersection = p1.pointOfIntersection;
p2.isIn = true;
return(p2);
}
p2.isIn = true;
return(p2);
}
if (p1.t2 < 0.001)
{
if (p1.t < p2.t && p1.t < p2.t2)
{
p1.isIn = true;
return(p1);
}
else if (p1.t > p2.t && p1.t < p2.t2)
{
p1.t = p2.t2;
p1.normal = p2.normalEnd;
p1.pointOfIntersection = p2.pointOfIntersection2;
p1.isIn = true;
return(p1);
}
else if (p1.t > p2.t && p1.t > p2.t2)
{
p1.isIn = true;
return(p1);
}
else if (p2.t2 < 0.001 && p1.t < p2.t)
{
p1.t = p2.t;
p1.normal = p2.normal;
p1.pointOfIntersection = p2.pointOfIntersection;
p1.isIn = true;
return(p1);
}
p1.isIn = true;
return(p1);
}
}
}
else if (p1 == null && p2 != null)
{
if (p2.t2 < 0.001)
{
p2.isIn = true;
return(p2);
}
else
{
return(p2);
}
}
else if (p2 == null && p1 != null)
{
if (p1.t2 < 0.001)
{
p1.isIn = true;
return(p1);
}
else
{
return(p1);
}
}
else
{
return(null);
}
return(null);
}