public override bool Scatter(RTRay ray, HitRecord hit, out Color attenuation, out RTRay scattered)
{
Vector3 reflected = RTMath.Reflect(ray.direction.normalized, hit.n);
scattered = new RTRay().Set(hit.p, reflected + fuzz * RTMath.RndInUnitSphere());
attenuation = albedo;
return(Vector3.Dot(scattered.direction, hit.n) > 0);
}
public override bool Scatter(RTRay ray, HitRecord hit, out Color attenuation, out RTRay scattered)
{
Vector3 target = hit.p + hit.n + RTMath.RndInUnitSphere();
scattered = new RTRay().Set(hit.p, target - hit.p);
attenuation = albedo;
return(true);
}
public RTRay GetRay(float s, float t)
{
Vector3 rd = RTMath.RndInUnitSphere() * len_radius;
Vector3 offset = u * rd.x + v * rd.y;
RTRay ray = new RTRay();
ray.Set(origin + offset, leftBottomCorner + horizontal * s + vertical * t - origin - offset);
return(ray);
}
public override Color GetColor(RTRay ray, int depth)
{
HitRecord hit;
if (scene.Hit(ray, 0.001f, 1000, out hit))
{
Vector3 target = hit.p + hit.n + RTMath.RndInUnitSphere();
float absorptivity = 0.5f;
return(absorptivity * GetColor(new RTRay().Set(hit.p, target - hit.p), depth + 1));
}
return(RTCanvas.GetEnvironmentColor(ray));
}