public override bool Hit(Ray ray, float t_min, float t_max, ref HitRecord rec)
{
var temp_record = new HitRecord();
var hit_anything = false;
var closest = t_max;
foreach (var h in list)
{
if (!h.Hit(ray, t_min, closest, ref temp_record))
{
continue;
}
hit_anything = true;
closest = temp_record.t;
rec = temp_record;
}
return(hit_anything);
}
public override bool Hit(Ray ray, float t_min, float t_max, ref HitRecord rec)
{
HitRecord rec1 = new HitRecord(), rec2 = new HitRecord();
if (boundary.Hit(ray, -float.MaxValue, float.MaxValue, ref rec1))
{
if (boundary.Hit(ray, rec1.t + 0.0001f, float.MaxValue, ref rec2))
{
rec1.t = Mathf.Range(rec1.t, t_min, t_max);
if (rec1.t < t_min)
{
rec1.t = t_min;
}
if (rec2.t > t_max)
{
rec2.t = t_max;
}
if (rec1.t >= rec2.t)
{
return(false);
}
if (rec1.t < 0)
{
rec1.t = 0;
}
float distance_inside_boundary = (rec2.t - rec1.t) * ray.direction.length();
float hit_distance = -(1 / density) * Mathf.Log(Mathematics.Random.Get());
if (hit_distance < distance_inside_boundary)
{
rec.t = rec1.t + hit_distance / ray.direction.length();
rec.p = ray.GetPoint(rec.t);
rec.normal = new Vector3(1, 0, 0); // arbitrary
rec.material = phase_function;
return(true);
}
}
}
return(false);
}
public override bool Hit(Ray ray, float t_min, float t_max, ref HitRecord rec)
{
//if (Renderer.main.hit[ray.id] == 1)return false;
var temp_record = new HitRecord();
var hit_anything = false;
var closest = t_max;
foreach (var h in list)
{
if (!h.Hit(ray, t_min, closest, ref temp_record))
{
continue;
}
hit_anything = true;
closest = temp_record.t;
rec = temp_record;
}
// if (!hit_anything)Renderer.main.hit[ray.id]= 1;
return(hit_anything);
}
public abstract bool Hit(Ray ray, float t_min, float t_max, ref HitRecord rec);
