private static void RandomScene(ref HitList list)
{
list.Add(new Sphere(new Vector3(0, -1000, 0), 1000f, new Lambertian(new Vector3(0.5f, 0.5f, 0.5f))));
for (int i = -11; i < 11; ++i)
{
for (int j = -11; j < 11; ++j)
{
Vector3 center = new Vector3(i + 0.9f * RandomFloat01(gSeed), 0.2f, j + 0.9f * RandomFloat01(gSeed));
Vector3 baseCenter = new Vector3(4, 0.2f, 0);
float choose_mat = RandomFloat01(gSeed);
if ((center - baseCenter).magnitude > 0.9)
{
if (choose_mat < 0.5f)
{
list.Add(new Sphere(center, 0.2f, new Lambertian(new Vector3(RandomFloat01(gSeed) * RandomFloat01(gSeed),
RandomFloat01(gSeed) * RandomFloat01(gSeed), RandomFloat01(gSeed) * RandomFloat01(gSeed)))));
}
else if (choose_mat < 0.75f)
{
list.Add(new Sphere(center, 0.2f, new Metal(new Vector3(0.5f * (1 + RandomFloat01(gSeed)),
0.5f * (1 + RandomFloat01(gSeed)),
0.5f * (1 + RandomFloat01(gSeed))), 0.5f * RandomFloat01(gSeed))));
}
else
{
list.Add(new Sphere(center, 0.2f, new Dielectric(1.5f)));
}
}
}
}
list.Add(new Sphere(new Vector3(0, 1, 0), 1f, new Dielectric(1.5f)));
list.Add(new Sphere(new Vector3(-4, 1, 0), 1f, new Lambertian(new Vector3(0.4f, 0.2f, 0.1f))));
list.Add(new Sphere(new Vector3(4, 1, 0), 1f, new Metal(new Vector3(0.7f, 0.6f, 0.5f), 0.0f)));
}
public static void Main()
{
int nx = 640;
int ny = 480;
int ns = 32;
Vector3 lookfrom = new Vector3(13, 5, 3);
Vector3 lookat = new Vector3(0, 0, 0);
float dist_to_focus = 10;
float aperture = 0.1f;
Vector3 up = new Vector3(0, 1, 0);
MotionBlurRayCamera camera = new MotionBlurRayCamera(lookfrom, lookat, up, 20,
(float)(nx) / (float)(ny), aperture, dist_to_focus);
HitList list = new HitList();
RandomScene(ref list);
Texture2D tex = ImageHelper.CreateImg(nx, ny);
for (int j = ny - 1; j >= 0; --j)
{
for (int i = 0; i < nx; ++i)
{
Vector3 color = Vector3.zero;
for (int k = 0; k < ns; ++k)
{
float u = (float)(i + RandomFloat01(gSeed)) / (float)(nx);
float v = (float)(j + RandomFloat01(gSeed)) / (float)(ny);
Ray r = camera.GetRay(u, v);
color += RayCast(r, list, gSeed, 0);
}
color = color / (float)(ns);
color.x = Mathf.Sqrt(color.x);
color.y = Mathf.Sqrt(color.y);
color.z = Mathf.Sqrt(color.z);
ImageHelper.SetPixel(tex, i, j, color);
}
}
ImageHelper.SaveImg(tex, "Img/chapter12_single.png");
Debug.Log("Chapter 12 done");
}
public static void Test()
{
var b = ThreadPool.SetMaxThreads(System.Environment.ProcessorCount, System.Environment.ProcessorCount);
//Debug.Log(b);
int nx = 1280;
int ny = 720;
int ns = 128;
myThreadCount = nx * ny;
Vector3 lookfrom = new Vector3(13, 3, 3);
Vector3 lookat = new Vector3(0, 0, 0);
float dist_to_focus = 10;
float aperture = 0.1f;
Vector3 up = new Vector3(0, 1, 0);
MotionBlurRayCamera camera = new MotionBlurRayCamera(lookfrom, lookat, up, 20,
(float)(nx) / (float)(ny), aperture, dist_to_focus);
HitList list = new HitList();
RandomScene(ref list);
Texture2D tex = ImageHelper.CreateImg(nx, ny);
Vector3[,] imgBin = new Vector3[nx, ny];
ManualResetEvent resetEvent = new ManualResetEvent(false);
for (int j = ny - 1; j >= 0; --j)
{
for (int i = 0; i < nx; ++i)
{
var param = new Param();
param.world = list;
param.camera = camera;
param.pos_x = i;
param.pos_y = j;
param.img_width = nx;
param.img_height = ny;
param.times = ns;
param.img = imgBin;
param.mre = resetEvent;
param.seed = new System.Random();
while (!ThreadPool.QueueUserWorkItem(ThreadRayMain, param))
{
Debug.Log("wait ");
Thread.Sleep(500);
}
}
}
resetEvent.WaitOne();
for (int j = ny - 1; j >= 0; --j)
{
for (int i = 0; i < nx; ++i)
{
ImageHelper.SetPixel(tex, i, j, imgBin[i, j]);
}
}
ImageHelper.SaveImg(tex, "Img/chapter12.png");
Debug.Log("Chapter 12 done");
}