public Ray(V3 origin, V3 direction, Object3D originObject = null)
{
Origin = origin;
Direction = direction;
Direction.Normalize();
OriginObject = originObject;
Distance = float.MaxValue;
}
public V3(V3 t)
{
X = t.X;
Y = t.Y;
Z = t.Z;
}
public V3 RefractedVector(V3 normalVec, float n1, float n2)
{
float n;
float cosI;
if (normalVec * this < 0.0f) { // medium 1 -> medium 2
n = n1 / n2;
cosI = -normalVec * this;
}
else { // medium 2 -> medium 1
n = n2 / n1;
cosI = normalVec * this;
}
float sinT_pow2 = n * n * (1.0f - (cosI * cosI));
float cosT = Mathf.Sqrt(1.0f - sinT_pow2);
return n * this + (n * cosI - cosT) * normalVec;
}
/// Gets the reflected vector to the surface defined by normalVec for
/// the current (incident) vector.
public V3 ReflectedVector(V3 normalVec)
{
return 2 * (normalVec * this)
* normalVec - this;
}
/// Gets the reflected vector to the surface defined by normalVec for
/// the current (incident) vector.
public V3 ReflectedVector(V3 normalVec)
{
return(2 * (normalVec * this)
* normalVec - this);
}
public V3(V3 t)
{
X = t.X;
Y = t.Y;
Z = t.Z;
}
