public static RayImage ArrayRangeXY(double[,] imagedata, ColorGradient c)
{
int ni = imagedata.GetLength(0);
int nj = imagedata.GetLength(1);
RayImage output = new RayImage(ni, nj);
double minn = double.PositiveInfinity;
double maxx = double.NegativeInfinity;
for (int i = 0; i < ni; i++)
{
for (int j = 0; j < nj; j++)
{
maxx = (imagedata[i, j] > maxx) ? imagedata[i, j] : maxx;
minn = (imagedata[i, j] < minn) ? imagedata[i, j] : minn;
}
}
for (int i = 0; i < ni; i++)
{
for (int j = 0; j < nj; j++)
{
Triple col = c.GetColor(imagedata[i, j], minn, maxx);
output.SetPixelXY(i, j, col);
}
}
return(output);
}
public static RayImage ArrayLogRange(double[,] imagedata_in, ColorGradient c)
{
int ni = imagedata_in.GetLength(0);
int nj = imagedata_in.GetLength(1);
double[,] imagedata = new double[ni, nj];
for (int i = 0; i < ni; i++)
{
for (int j = 0; j < nj; j++)
{
imagedata[i, j] = Math.Log10(Math.Abs(imagedata_in[i, j]) + 1e-10);
}
}
RayImage output = new RayImage(ni, nj);
double minn = double.PositiveInfinity;
double maxx = double.NegativeInfinity;
for (int i = 0; i < ni; i++)
{
for (int j = 0; j < nj; j++)
{
maxx = (imagedata[i, j] > maxx) ? imagedata[i, j] : maxx;
minn = (imagedata[i, j] < minn) ? imagedata[i, j] : minn;
}
}
for (int i = 0; i < ni; i++)
{
for (int j = 0; j < nj; j++)
{
output.SetPixel(i, j, c.GetColor(imagedata[i, j], minn, maxx));
}
}
return(output);
}
public RayImage Render(out double[,] distances, out int[,] ids, out double[,] px_times)
{
rays = camera.GetRays();
im = new RayImage(camera.NX, camera.NY);
nx = camera.NX;
ny = camera.NY;
distance_field = new double[nx, ny];
times_field = new double[nx, ny];
bodyid_field = new int[nx, ny];
if (par_rdr)
{
Parallel.For(0, nx, render_single);
}
else
{
for (int i = 0; i < nx; i++)
{
render_single(i);
}
}
distances = distance_field;
ids = bodyid_field;
px_times = times_field;
return(im);
}
public static void RdrTimeMaps()
{
int nx = 800;
int ny = 600;
double radius = 31;
double cam_z = 30;
int N = 60;
double dtheta = 2 * Math.PI / N;
for (int i = 0; i < N; i++)
{
Info.WriteLine(i);
double theta = 0.5 * Math.PI + i * dtheta;
Camera c = new Camera(new Triple(-radius * Math.Cos(-theta), radius * Math.Sin(-theta), cam_z), 0, 0, nx, ny, 0.9);
c.AzimuthAngle = theta;
Background basic = new Background();
GlobalLightSource light = new GlobalLightSource(new Triple(1, 2, -4));
Scene main_scene = new Scene(basic, c);
Stl stl_subject = new Stl("stl/cat.stl");
FacetBody subject = stl_subject.ToFacetBody(new Triple(0, 0, 25));
RectangularPrism floor = new RectangularPrism(new Triple(0, 0, 21.3), 190, 190, 0.3);
subject.BodyOpticalProperties.BaseColor = new Triple(0.2, 0.2, 0.9);
subject.BodyOpticalProperties.IsReflective = true;
subject.BodyOpticalProperties.Reflectivity = 0.21;
main_scene.AddBody(floor);
main_scene.AddBody(subject);
main_scene.AddLight(light);
double[,] dist, ts;
int[,] id;
RayImage picture = main_scene.Render(out dist, out id, out ts);
RayImage dist_picture = RayImage.ArrayLogRangeXY(dist, ColorGradient.Jedi());
RayImage t_picture = RayImage.ArrayLogRangeXY(ts, ColorGradient.Jedi());
picture.Save("outputdata/images/" + i.ToString().PadLeft(N.ToString().Length, '0') + ".png");
dist_picture.Save("outputdata/dists/" + i.ToString().PadLeft(N.ToString().Length, '0') + ".png");
t_picture.Save("outputdata/times/" + i.ToString().PadLeft(N.ToString().Length, '0') + ".png");
}
/*double[,] a = new double[nx, ny];
* for (int x = 0; x < nx; x++)
* {
* for (int y = 0; y < ny; y++)
* {
* a[x,y] = (double)(x+y);
* }
* }
* RayImage test = RayImage.ArrayRangeXY(a, ColorGradient.Rgb());
* test.Save("frames/s.png");*/
}
public static void Liberty()
{
int nx = 1950;
int ny = 1000;
double radius = 280;
double cam_z = 26;
double theta = 0.5 * Math.PI;
Camera c = new Camera(new Triple(-radius * Math.Cos(-theta), radius * Math.Sin(-theta), cam_z), 0, 0, nx, ny, 0.9);
c.AzimuthAngle = theta;
Background basic = new Background();
GlobalLightSource light = new GlobalLightSource(new Triple(1, 2, -4));
Scene main_scene = new Scene(basic, c);
main_scene.DoShadows = true;
Info.WriteLine("Importing...");
Stl stl_subject = new Stl("stl/liberty.stl");
Info.WriteLine("Done importing.");
FacetBody subject = stl_subject.ToFacetBody(new Triple(0, 0, 250));
RectangularPrism floor = new RectangularPrism(new Triple(0, 0, subject.ZminGlobal - 0.15), 190, 190, 0.3);
c.Position.Z = subject.ZminGlobal;
c.ElevationAngle = 0.78 * Math.PI / 3;
subject.BodyOpticalProperties.BaseColor = new Triple(0.8, 0.5, 0.8);
subject.BodyOpticalProperties.IsReflective = true;
subject.BodyOpticalProperties.Reflectivity = 0.21;
//main_scene.AddBody(floor);
main_scene.AddBody(subject);
main_scene.AddLight(light);
double[,] dist, ts;
int[,] id;
Info.WriteLine("Rendering...");
RayImage picture = main_scene.Render(out dist, out id, out ts);
RayImage dist_picture = RayImage.ArrayLogRangeXY(dist, ColorGradient.Jedi());
RayImage t_picture = RayImage.ArrayLogRangeXY(ts, ColorGradient.Jedi());
Info.WriteLine("Done.");
picture.Save("frames/lib.png");
dist_picture.Save("frames/libdists.png");
t_picture.Save("frames/libtimes.png");
Utils.WriteCsv("frames/dists.csv", dist);
Utils.WriteCsv("frames/times.csv", ts);
}
public static void DestroyComputer()
{
int nx = 1950;
int ny = 1000;
double radius = 25;
double cam_z = 26;
double theta = 0.5 * Math.PI;
Camera c = new Camera(new Triple(-radius * Math.Cos(-theta), radius * Math.Sin(-theta), cam_z), 0, 0, nx, ny, 0.9);
c.AzimuthAngle = theta;
Background basic = new Background();
basic.HasFloor = false;
basic.SkyColor = new Triple(1, 1, 1);
GlobalLightSource light = new GlobalLightSource(new Triple(1, 2, -4));
Scene main_scene = new Scene(basic, c);
main_scene.DoShadows = true;
Info.WriteLine("Importing...");
Stl stl_subject = new Stl("stl/car-a.stl", true);
Info.WriteLine("Done importing.");
FacetBody subject = stl_subject.ToFacetBody(new Triple(0, 0, 25));
RectangularPrism floor = new RectangularPrism(new Triple(0, 0, subject.ZminGlobal - 0.15), 190, 190, 0.3);
subject.BodyOpticalProperties.BaseColor = new Triple(0.5, 0.5, 0.5);
subject.BodyOpticalProperties.IsReflective = false;
subject.BodyOpticalProperties.Reflectivity = 0.21;
//main_scene.AddBody(floor);
main_scene.AddBody(subject);
main_scene.AddLight(light);
double[,] dist, ts;
int[,] id;
Info.WriteLine("Rendering...");
RayImage picture = main_scene.Render(out dist, out id, out ts);
RayImage dist_picture = RayImage.ArrayLogRangeXY(dist, ColorGradient.Jedi());
RayImage t_picture = RayImage.ArrayLogRangeXY(ts, ColorGradient.Jedi());
Info.WriteLine("Done.");
picture.Save("cfdstuff/car.png");
dist_picture.Save("cfdstuff/cardists.png");
t_picture.Save("cfdstuff/cartimes.png");
}
public static void RenderCube()
{
int nx = 1320;
int ny = 768;
int N = 10;
double dtheta = 2 * Math.PI / N;
Triple cube_pos = new Triple(0, 0, 10);
Background basic = new Background();
basic.HasFloor = true;
double radius = 10;
double elev = -0.15;
double height = 15;
Triple pos = new Triple(0, 0, height);
Camera c = new Camera(pos, elev, 0, nx, ny, 0.9);
RectangularPrism cu = new RectangularPrism(cube_pos, 4);
RectangularPrism cu2 = new RectangularPrism(cube_pos + new Triple(6, 0, 0), 4);
RectangularPrism cu3 = new RectangularPrism(cube_pos + new Triple(0, 6, 0), 4);
RectangularPrism cu4 = new RectangularPrism(cube_pos + new Triple(0, 0, 6), 4);
cu.BodyOpticalProperties.BaseColor = new Triple(0.7, 0.2, 0.2);
cu2.BodyOpticalProperties.BaseColor = new Triple(0.2, 0.7, 0.2);
cu3.BodyOpticalProperties.BaseColor = new Triple(0.2, 0.2, 0.7);
cu4.BodyOpticalProperties.BaseColor = new Triple(0.7, 0.2, 0.7);
Scene main_scene = new Scene(basic, c);
main_scene.AddBody(cu);
main_scene.AddBody(cu2);
CustomStopWatch w = new CustomStopWatch();
for (int i = 0; i < N; i++)
{
double theta = i * dtheta;
//pos = new Triple(-radius*Math.Cos(theta), radius*Math.Sin(theta), height);
pos = new Triple(-radius, 0, height);
main_scene.SceneCamera.AzimuthAngle = theta;
main_scene.SceneCamera.Position = pos;
w.tic();
RayImage r = main_scene.Render();
w.toc();
w.Report("render " + i.ToString());
r.Save("frames/img" + i.ToString().PadLeft(3, '0') + ".png");
}
}
public static void RenderZoom()
{
//Confirms that 1.7 is a good number.
int nx = 1320;
int ny = 768;
int N = 15;
for (int i = 0; i < N; i++)
{
double theta = 0;
double height = 30;
double elev = 0;
Triple pos = new Triple(0, 0, height);
Camera c = new Camera(pos, elev, theta, nx, ny, 0.1 + 0.1 * i);
Background basic = new Background();
basic.HasFloor = true;
RayImage r = basic.BasicRender(c);
r.Save("frames/img" + i.ToString().PadLeft(3, '0') + ".png");
}
}
public static void MakeOrbitFrames()
{
int nx = 1320;
int ny = 768;
int N = 400;
double dtheta = 2 * Math.PI / (N - 1);
for (int i = 0; i < N; i++)
{
Info.WriteLine(i);
double theta = i * dtheta;
double height = 28 - 5 * Math.Cos(theta);
double elev = -0.17 + 0.45 * Math.Cos(theta);
Triple pos = new Triple(3 * Math.Sin(theta), 3 * Math.Cos(theta), height);
Camera c = new Camera(pos, elev, theta, nx, ny);
Background basic = new Background();
basic.HasFloor = true;
RayImage r = basic.BasicRender(c);
r.Save("frames/img" + i.ToString().PadLeft(3, '0') + ".png");
}
}
public static void CompareWithAliasing()
{
int nx = 1320;
int ny = 768;
int N = 40;
double theta = 0;
double height = 30;
double elev = 0;
Triple pos = new Triple(0, 0, height);
Camera c = new Camera(pos, elev, theta, nx, ny);
Background basic = new Background();
basic.HasFloor = true;
RayImage r = basic.BasicRender(c);
r.Save("frames/withaa.png");
basic.SetAntiAliasing(false);
RayImage r2 = basic.BasicRender(c);
r2.Save("frames/withnoaa.png");
}
public RayImage BasicRender(Camera c)
{
rays = c.GetRays();
im = new RayImage(c.NX, c.NY);
nx = c.NX;
ny = c.NY;
if (par_rdr)
{
Parallel.For(0, nx, render_single);
}
else
{
for (int i = 0; i < c.NX; i++)
{
for (int j = 0; j < c.NY; j++)
{
im.SetPixelXY(i, j, GetBackgroundColor(rays[i, j]));
}
}
}
return(im);
}
public static void RenderHeights()
{
int nx = 1320;
int ny = 768;
int N = 15;
CustomStopWatch w = new CustomStopWatch();
for (int i = 0; i < N; i++)
{
w.tic();
double height = 0.5 + 5 * i;
Triple pos = new Triple(0, 0, height);
Camera c = new Camera(pos, -0.07, 0.2 * i, nx, ny);
Background basic = new Background();
basic.HasFloor = true;
RayImage r = basic.BasicRender(c);
w.toc();
w.Report("render " + i.ToString());
w.tic();
r.Save("frames/img" + i.ToString().PadLeft(3, '0') + ".png");
w.toc();
w.Report("save " + i.ToString());
}
}
public static double[] OrbitCube()
{
int nx = 1320;
int ny = 768;
int N = 90;
double dtheta = 2 * Math.PI / N;
Triple cube_pos = new Triple(0, 0, 10);
Background basic = new Background();
basic.HasFloor = true;
double radius = 25;
double elev = -0.15;
double height = 15;
List <double> times = new List <double>();
GlobalLightSource light = new GlobalLightSource(new Triple(1, 2, -4));
Triple pos = new Triple(0, 0, height);
Camera c = new Camera(pos, elev, 0, nx, ny, 0.9);
RectangularPrism cu1 = new RectangularPrism(cube_pos, 5, 3, 4);
RectangularPrism cu2 = new RectangularPrism(cube_pos + new Triple(6, 0, 0), 4, 3, 5);
RectangularPrism cu3 = new RectangularPrism(cube_pos + new Triple(0, 6, 0), 3, 5, 4);
RectangularPrism cu4 = new RectangularPrism(cube_pos + new Triple(0, 0, 6), 4, 5, 3);
RectangularPrism cu5 = new RectangularPrism(cube_pos + new Triple(0, 6, 6), 5, 5, 3);
RectangularPrism cu6 = new RectangularPrism(cube_pos + new Triple(6, 6, 6), 4, 5, 4);
RectangularPrism cu7 = new RectangularPrism(cube_pos + new Triple(6, 6, 0), 3, 3, 5);
RectangularPrism cu8 = new RectangularPrism(cube_pos + new Triple(6, 0, 6), 3, 3, 3);
RectangularPrism floor = new RectangularPrism(new Triple(0, 0, 2), 40, 40, 0.3);
cu1.BodyOpticalProperties.BaseColor = new Triple(0.7, 0.2, 0.2);
cu2.BodyOpticalProperties.BaseColor = new Triple(0.2, 0.7, 0.2);
cu3.BodyOpticalProperties.BaseColor = new Triple(0.2, 0.2, 0.7);
cu4.BodyOpticalProperties.BaseColor = new Triple(0.7, 0.2, 0.7);
cu5.BodyOpticalProperties.BaseColor = new Triple(0.7, 0.7, 0.7);
cu6.BodyOpticalProperties.BaseColor = new Triple(0.2, 0.7, 0.7);
cu7.BodyOpticalProperties.BaseColor = new Triple(0.7, 0.7, 0.2);
cu8.BodyOpticalProperties.BaseColor = new Triple(0.67, 0.2, 0.4);
floor.BodyOpticalProperties.BaseColor = new Triple(0.67, 0.67, 0.67);
Scene main_scene = new Scene(basic, c);
main_scene.AddBody(cu1);
main_scene.AddBody(cu2);
main_scene.AddBody(cu3);
main_scene.AddBody(cu4);
main_scene.AddBody(cu5);
main_scene.AddBody(cu6);
main_scene.AddBody(cu7);
main_scene.AddBody(cu8);
main_scene.AddBody(floor);
main_scene.AddLight(light);
CustomStopWatch w = new CustomStopWatch();
for (int i = 0; i < N; i++)
{
double theta = i * dtheta;
pos = new Triple(-radius * Math.Cos(-theta), radius * Math.Sin(-theta), height + 5 * Math.Sin(theta));
//pos = new Triple(-radius, 0, height);
main_scene.SceneCamera.AzimuthAngle = theta;
main_scene.SceneCamera.ElevationAngle = -0.19740 * Math.Sin(theta);
main_scene.SceneCamera.Position = pos;
w.tic();
RayImage r = main_scene.Render();
times.Add(w.toc());
w.Report("render " + i.ToString());
r.Save("frames/img" + i.ToString().PadLeft(3, '0') + ".png");
}
return(times.ToArray());
}
public static double[] RenderSphere()
{
int nx = 1320;
int ny = 768;
int N = 2;
double dtheta = 2 * Math.PI / N;
Triple cube_pos = new Triple(0, 0, 10);
Background basic = new Background();
basic.HasFloor = true;
double radius = 25;
double elev = -0.15;
double height = 15;
List <double> times = new List <double>();
GlobalLightSource light = new GlobalLightSource(new Triple(1, 2, -4));
Triple pos = new Triple(0, 0, height);
Camera c = new Camera(pos, elev, 0, nx, ny, 0.9);
Sphere ball = new Sphere(cube_pos, 3);
RectangularPrism floor = new RectangularPrism(new Triple(0, 0, 2), 70, 70, 1);
RectangularPrism ceil = new RectangularPrism(new Triple(0, 0, 30), 70, 70, 1);
ball.BodyOpticalProperties.BaseColor = new Triple(0.7, 0.2, 0.2);
Scene main_scene = new Scene(basic, c);
main_scene.AddBody(ball);
main_scene.AddBody(floor);
main_scene.AddBody(ceil);
main_scene.AddLight(light);
ceil.Move(new Triple(0, 81 * (70.0 / (N - 1)), 0));
Scene.PAR_RENDER = true;
CustomStopWatch w = new CustomStopWatch();
for (int i = 0; i < N; i++)
{
double theta = i * dtheta;
//pos = new Triple(-radius*Math.Cos(-theta), radius*Math.Sin(-theta), height);// + 5*Math.Sin(theta));
ball.Move(new Triple(0, 0, -0.9));
pos = new Triple(-radius, 0, height);
//main_scene.SceneCamera.AzimuthAngle = theta;
//main_scene.SceneCamera.ElevationAngle = -0.19740*Math.Sin(theta);
main_scene.SceneCamera.Position = pos;
w.tic();
double[,] dist, ts;
int[,] id;
RayImage r = main_scene.Render(out dist, out id, out ts);
times.Add(w.toc());
Utils.WriteCsv("outputdata/ids.csv", id);
Utils.WriteCsv("outputdata/dists.csv", dist);
w.Report("render " + i.ToString());
r.Save("frames/img" + (i).ToString().PadLeft(3, '0') + ".png");
}
return(times.ToArray());
}
public static double[] RenderTeapot()
{
int nx = 1320;
int ny = 768;
int N = 1;
double dtheta = 2 * Math.PI / N;
Triple cube_pos = new Triple(0, 0, 12);
Background basic = new Background();
basic.HasFloor = true;
double radius = 25;
double elev = -0.15;
double height = 15;
//rdr times
List <double> times = new List <double>();
GlobalLightSource light = new GlobalLightSource(new Triple(1, 2, -4));
Triple pos = new Triple(0, 0, height);
Camera c = new Camera(pos, elev, 0, nx, ny, 0.9);
Sphere ball = new Sphere(cube_pos, 3);
Stl teapot_stl = new Stl("stl/frog.stl");
FacetBody teapot = teapot_stl.ToFacetBody(cube_pos + new Triple(5, 1.5, 0));
teapot.WriteAsciiStl("stl/TESTING.stl");
RectangularPrism floor = new RectangularPrism(new Triple(0, 0, 0), 70, 70, teapot.ZminGlobal * 2);
RectangularPrism eq = new RectangularPrism(cube_pos, 10, 10, 10);
ball.BodyOpticalProperties.BaseColor = new Triple(0.7, 0.2, 0.2);
eq.BodyOpticalProperties.BaseColor = new Triple(0.7, 0.2, 0.2);
teapot.BodyOpticalProperties.BaseColor = new Triple(0.7, 0.2, 0.2);
teapot.BodyOpticalProperties.IsReflective = true;
teapot.BodyOpticalProperties.Reflectivity = 0.55;
Scene main_scene = new Scene(basic, c);
//main_scene.AddBody(ball);
main_scene.AddBody(floor);
main_scene.AddBody(teapot);
//main_scene.AddBody(eq);
main_scene.AddLight(light);
Scene.PAR_RENDER = false;
CustomStopWatch w = new CustomStopWatch();
for (int i = 0; i < N; i++)
{
double theta = i * dtheta;
pos = new Triple(-radius * Math.Cos(-theta), radius * Math.Sin(-theta), height); // + 5*Math.Sin(theta));
ball.Move(new Triple(0, 0, -0.9));
//pos = new Triple(-radius, 0, height);
main_scene.SceneCamera.AzimuthAngle = theta;
//main_scene.SceneCamera.ElevationAngle = -0.19740*Math.Sin(theta);
main_scene.SceneCamera.Position = pos;
double[,] dist, times_d;
int[,] id;
w.tic();
RayImage r = main_scene.Render(out dist, out id, out times_d);
times.Add(w.toc());
w.Report("render " + i.ToString());
r.Save("frames/img" + (i).ToString().PadLeft(3, '0') + ".png");
Utils.WriteCsv("outputdata/ids.csv", id);
Utils.WriteCsv("outputdata/dists.csv", dist);
Utils.WriteCsv("outputdata/pxtimes.csv", times_d);
}
return(times.ToArray());
}