void DrawPicture()
{
int sampleCount = 1;
Hitable sphere1 = new Sphere(new Vector3(0, 0, -1), 0.5f);
Hitable sphere2 = new Sphere(new Vector3(0, -100.5f, -1), 100);
List <Hitable> hitList = new List <Hitable>();
hitList.Add(sphere1);
hitList.Add(sphere2);
Hitable world = new HitableList(hitList);
CameraRay camRay = new CameraRay();
for (int i = 0; i < screenWidth; ++i)
{
for (int j = 0; j < screenHeight; ++j)
{
Color c = Color.black;
for (int k = 0; k < sampleCount; ++k)
{
float t1 = Random.Range(0.0f, 1.0f);
float t2 = Random.Range(0.0f, 1.0f);
Ray r = camRay.GetRay((i + t1) / screenWidth, (j + t2) / screenHeight);
c += GetColor(r, world);
}
c = c / sampleCount;
MoDraw.Instance.DrawPoint(new Vector2Int(i, j), c);
}
}
}
public void Update(Scene scene)
{
if (sampleCount_ >= maxSampleNum_)
{
return;
}
--y_;
if (y_ < 0)
{
y_ = height_ - 1;
++sampleCount_;
}
var alpha = 1.0f / sampleCount_;
for (int x = 0; x < width_; ++x)
{
float u = ((float)x + Util.UnitRandFloat()) / (float)width_;
float v = ((float)y_ + Util.UnitRandFloat()) / (float)height_;
var color = Util.ConvertToColor(scene.GetColor(cameraRay_.GetRay(u, v)));
pixel_[x, y_] = Color.Lerp(pixel_[x, y_], color, alpha);
}
}
