public IntersectionInfo(float distance, Ray4 localRay, Vector3 baryCoord, Geomertry geomertry)
{
Distance = distance;
BaryCoord = baryCoord;
LocalRay = localRay;
Geomertry = geomertry;
}
public IntersectionInfo(float distance, Ray originalRay, Vector3 baryCoord, Geomertry geomertry)
{
Distance = distance;
BaryCoord = baryCoord;
OriginalRay = originalRay;
Geomertry = geomertry;
}
public static Intersectable CreateIntersectable(Geomertry geomertry)
{
if (geomertry is Triangle)
return new TriangeIntersectable((Triangle) geomertry);
else if (geomertry is CalculatedTriangle)
{
return new CalculatedTriangeIntersectable((CalculatedTriangle) geomertry);
}
else if (geomertry is Sphere)
{
return new SphereIntersectable((Sphere) geomertry);
}
throw new Exception("Unsuported geometry type");
}
private static bool ContaiseGeomertry(BoundingBox box, Geomertry geomertry)
{
if (geomertry is Triangle)
{
Triangle triangle = (Triangle) geomertry;
Vector3 at = Vector3.Transform(triangle.A, triangle.Transform);
Vector3 bt = Vector3.Transform(triangle.B, triangle.Transform);
Vector3 ct = Vector3.Transform(triangle.C, triangle.Transform);
return box.Contains(at) == ContainmentType.Contains ||
box.Contains(bt) == ContainmentType.Contains ||
box.Contains(ct) == ContainmentType.Contains;
}
else if (geomertry is Sphere)
{
Sphere sphere = (Sphere) geomertry;
Vector3 center = Vector3.Transform(sphere.Center, sphere.Transform);
float rx = sphere.Radius*sphere.Transform.M11;
float ry = sphere.Radius*sphere.Transform.M22;
float rz = sphere.Radius*sphere.Transform.M33;
float maxR = Math.Max(rx, Math.Max(ry, rz));
float a = box.Max.X - box.Min.X;
float b = box.Max.Y - box.Min.Y;
float c = box.Max.Z - box.Min.Z;
float halfDiagonal = (float) ((Math.Sqrt(a*a + b*b + c*c))/2.0);
float distance = Vector3.Distance(center, (box.Max + box.Min)/2.0f);
return distance <= halfDiagonal + maxR;
}
throw new Exception("Unsupported geometry");
}
public Intersectable(Geomertry geomertry)
{
Geomertry = geomertry;
}
public IntersectionInfo(float distance, Ray4 localRay, Geomertry geomertry)
{
Distance = distance;
LocalRay = localRay;
Geomertry = geomertry;
}
public IntersectionInfo(float distance, Ray originalRay, Geomertry geomertry)
{
Distance = distance;
OriginalRay = originalRay;
Geomertry = geomertry;
}