static void Main(string[] args)
{
RayObjects = new List<SLRayPrimitive>();
Lights = new List<SLLight>();
ReadScene("scene.urt");
dir = EYE - SPOT;
right = UP.Cross(dir);
right.Normalize();
screenCenter = dir.Cross(right);
screenV = screenCenter * (float)Math.Tan(FOVY * 0.5f);
screenU = right * screenV.Magnitude() * ASPECT;
WIDTH_DIV_2 = ImageWidth / 2;
HEIGHT_DIV_2 = ImageHeight / 2;
random = new Random(01478650229);
Bitmap outputImage = new Bitmap(ImageWidth, ImageHeight);
// add some objects
float distance = 20.0f;
float offset = distance / 2.0f;
for (int i = 0; i < 5; i++)
{
float x = (float)(random.NextDouble() * distance) - offset;
float y = (float)(random.NextDouble() * distance) - offset;
float z = (float)(random.NextDouble() * 10.0f + 2.0f);
Color c = Color.FromArgb(255, random.Next(255), random.Next(255), random.Next(255));
SLSphere s = new SLSphere(new SLVector3f(x, y, z), (float)(random.NextDouble() + 0.5), c);
RayObjects.Add(s);
}
int dotPeriod = ImageHeight / 10;
Stopwatch stopwatch = new Stopwatch();
System.Console.WriteLine("Rendering...\n");
System.Console.WriteLine("|0%---100%|");
stopwatch.Start();
for (int j = 0; j < ImageHeight; j++)
{
if ((j % dotPeriod) == 0) System.Console.Write("*");
for (int i = 0; i < ImageWidth; i++)
{
// Go through each pixel to get the color
Color c = Render(i, j);
outputImage.SetPixel(i, j, c);
}
}
stopwatch.Stop();
TimeSpan ts = stopwatch.Elapsed;
string output = ts.Minutes.ToString() + "_" + ts.Seconds.ToString() + ".png";
outputImage.Save(output);
}
static void ReadScene(string path)
{
StreamReader file = new StreamReader(path);
string delim = file.ReadLine();
if (delim != "U5")
return;
// Get resolution
string[] res = file.ReadLine().Split(' ');
ImageWidth = Int32.Parse(res[0]);
ImageHeight = Int32.Parse(res[1]);
// Get Eye
string[] eye = file.ReadLine().Split(' ');
EYE = new SLVector3f(float.Parse(eye[0]), float.Parse(eye[1]), float.Parse(eye[2]));
// Get Spot
string[] spot = file.ReadLine().Split(' ');
SPOT = new SLVector3f(float.Parse(spot[0]), float.Parse(spot[1]), float.Parse(spot[2]));
// Get Up
string[] up = file.ReadLine().Split(' ');
UP = new SLVector3f(float.Parse(up[0]), float.Parse(up[1]), float.Parse(up[2]));
// Get aspect
string[] viewVol = file.ReadLine().Split(' ');
FOVY = float.Parse(viewVol[0]);
ASPECT = float.Parse(viewVol[1]);
// Read in Ambient Values
string[] ambient = file.ReadLine().Split(' ');
LaR = float.Parse(ambient[0]);
LaG = float.Parse(ambient[1]);
LaB = float.Parse(ambient[2]);
// Read in spheres
while (!file.EndOfStream)
{
string[] line = file.ReadLine().Split(' ');
string del = line[0];
switch(del)
{
case "l": // LIGHTS
SLVector3f pos = new SLVector3f(float.Parse(line[1]), float.Parse(line[2]), float.Parse(line[3]));
SLLight l = new SLLight(pos, float.Parse(line[4]), float.Parse(line[5]), float.Parse(line[6]));
Lights.Add(l);
break;
case "s": // SPHERES
SLSphere s = new SLSphere(new SLVector3f(float.Parse(line[1]), float.Parse(line[2]), float.Parse(line[3])), float.Parse(line[4]),
Color.FromArgb((int)float.Parse(line[5])*255, (int)float.Parse(line[6])*255, (int)float.Parse(line[7])*255));
RayObjects.Add(s);
break;
case "p": // PLANES
float offset;
if (float.Parse(line[1]) != 0.0f) offset = float.Parse(line[1]);
else if (float.Parse(line[2]) != 0.0f) offset = float.Parse(line[2]);
else offset = float.Parse(line[3]);
float pR = float.Parse(line[7]) * 255.0f;
float pG = float.Parse(line[8]) * 255.0f;
float pB = float.Parse(line[9]) * 255.0f;
SLPlane p = new SLPlane(new SLVector3f(float.Parse(line[4]), float.Parse(line[5]), float.Parse(line[6])), offset,
Color.FromArgb((int)pR, (int)pG, (int)pB));
RayObjects.Add(p);
break;
}
}
}
