public static void TestRender(int spp, int height)
{
var w = BuildWorld();
var aspectRatio = 3f / 2;
var width = (int)(aspectRatio * height);
// var height = 800;
var canvas = new Canvas(width, height);
var pps = new PerPixelSampler(spp);
var camera = new ApertureCamera(MathF.PI / 3f, 3f / 2, 0.05f,
new Point(0, 1.25f, -4f),
new Point(0, 1, 0), Vectors.Up, 3.5f);
var cws = new ComposableWorldSampler(2,
16,
GGXNormalDistribution.Instance,
GGXSmithGeometricShadow.Instance,
SchlickFresnelFunction.Instance,
w);
var ctx = new RenderContext(canvas, new RenderPipeline(cws, camera, pps));
Console.WriteLine("Rendering at {0}x{1}...", width, height);
var stopwatch = new Stopwatch();
stopwatch.Start();
ctx.Render();
PPM.ToFile(canvas, Environment.GetFolderPath(Environment.SpecialFolder.MyPictures), "scene");
stopwatch.Stop();
Console.WriteLine("Done ({0})", stopwatch.Elapsed);
}
public static void MappingTestRender()
{
Cube Cube(float rotY, float rotX, float tx, float ty)
{
var cube1 = new Cube
{
Material = { Texture = CreateTestCubeMap(), Roughness = 1f, SpecularColor = new Color(0.3f, 0.3f, 0.3f) }
};
cube1.SetTransform(Transform.RotateY(rotY).RotateX(rotX).Translate(tx, ty, 0));
return(cube1);
}
var g = new Group();
g.AddChild(Cube(0.7854f, 0.7854f, -6, 2));
g.AddChild(Cube(2.3562f, 0.7854f, -2, 2));
g.AddChild(Cube(3.927f, 0.7854f, 2, 2));
g.AddChild(Cube(5.4978f, 0.7854f, 6, 2));
g.AddChild(Cube(0.7854f, -0.7854f, -6, -2));
g.AddChild(Cube(2.3562f, -0.7854f, -2, -2));
g.AddChild(Cube(3.927f, -0.7854f, 2, -2));
g.AddChild(Cube(5.4978f, -0.7854f, 6, -2));
g.Divide(1);
var w = new World();
w.SetLights(new PointLight(new Point(0, 2, -100), Colors.White));
w.SetObjects(g);
var width = 800;
var height = 400;
var from = new Point(0, 0, -20f);
var to = new Point(0, 0, 0);
var canvas = new Canvas(width, height);
var pps = new PerPixelSampler(16);
var fov = 0.8f;
var aspectRatio = (float)width / height;
var transform = Transform.LookAt(from, to, new Vector(0, 1, 0));
var camera = new PinholeCamera(transform, fov, aspectRatio);
var cws = new PhongWorldShading(1, w);
var ctx = new RenderContext(canvas, new RenderPipeline(cws, camera, pps));
Console.WriteLine("Rendering at {0}x{1}...", width, height);
var stopwatch = new Stopwatch();
stopwatch.Start();
ctx.Render();
PPM.ToFile(canvas, Environment.GetFolderPath(Environment.SpecialFolder.MyPictures), "mapping");
stopwatch.Stop();
Console.WriteLine("Done ({0})", stopwatch.Elapsed);
}
public void RaycastTest()
{
const int canvasPixels = 100;
var canvas = new Canvas(canvasPixels, canvasPixels);
var s = new Sphere {
Material = { Texture = new SolidColor(new Color(0.4f, 0.2f, 1)) }
};
var light = new PointLight(new Point(-10, 10, -10), new Color(1f, 1f, 1f));
//var t = Transforms.Shear(0.1f, 0, 0, 0, 0, 0).Scale(0.9f, 1f, 1f);
//s.SetTransform(t);
var rayOrigin = new Point(0f, 0f, -5f);
const float wallZ = 10f;
const float wallSize = 7.0f;
const float pixelSize = wallSize / canvasPixels;
const float half = wallSize / 2;
for (var y = 0; y < canvasPixels; y++)
{
var worldY = half - pixelSize * y;
for (var x = 0; x < canvasPixels; x++)
{
var worldX = -half + pixelSize * x;
var position = new Point(worldX, worldY, wallZ);
var r = new Ray(rayOrigin, (position - rayOrigin).Normalize());
var xs = s.Intersects(r);
var hit = xs.Hit();
if (!hit.HasValue)
{
continue;
}
var point = r.Position(hit.Value.T);
var shape = hit.Value.Geometry;
var normal = shape.NormalAt(point, hit.Value);
var eye = -r.Direction;
var color = PhongShading.Lighting(shape.Material, shape, light, point, eye, normal, 1);
canvas.WritePixel(color, x, y);
}
}
PPM.ToFile(canvas, Environment.GetFolderPath(Environment.SpecialFolder.MyPictures), "raycast");
}
public void ProjectileTest()
{
var start = new Point(0, 1, 0);
var vel = new Vector(1f, 1.8f, 0f).Normalize() * 11.25f;
var p = new Projectile(start, vel);
var w = new SimWorld(new Vector(0f, -0.1f, 0f), new Vector(-0.01f, 0, 0));
var c = new Canvas(900, 550);
var(x, y) = p.ToXY();
y = 550 - y;
var red = new Color(1f, 0f, 0f);
while (c.IsInBounds(x, y))
{
c.WritePixel(red, x, y);
p = p.Tick(w);
(x, y) = p.ToXY();
y = 550 - y;
}
PPM.ToFile(c, Environment.GetFolderPath(Environment.SpecialFolder.MyPictures), "projectile");
}
public static void TeapotTest()
{
Console.WriteLine("Loading file...");
var filePath = Path.Combine(GetExecutionPath(), "indoor_env.ppm");
//var filePath = Path.Combine(GetExecutionPath(), "winter_river_1k.ppm");
Console.WriteLine("Parsing file...");
var textureCanvas = PPM.ParseFile(filePath);
var image = new UVImage(textureCanvas);
var map = new TextureMap(image, UVMapping.Spherical);
var skySphere = new Sphere
{
Material =
{
Texture = map, Ambient = 2.5f, CastsShadows = false, Transparency = 0f, Roughness = 1f,
SpecularColor = new Color(0.0f, 0.0f, 0.0f)
}
};
//skySphere.SetTransform(Transforms.RotateY(3.4f).Scale(1000f));
skySphere.SetTransform(Transform.RotateY(3.3f).Scale(10000f));
var path = Path.Combine(GetExecutionPath(), "teapot.obj");
Console.WriteLine("Loading file {0}...", path);
var data = ObjFile.ParseFile(path);
Console.WriteLine("File parsed...");
var triangulated = data.Groups[0];
triangulated.SetTransform(Transform.Scale(0.10f).RotateX(-MathF.PI / 2f).RotateY(MathF.PI / 8f));
var glass = new Material
{
Texture = new SolidColor(new Color(0.8f, 1f, 0.9f)),
Reflective = 0.78f,
Roughness = 0.35f,
Metallic = 0.65f,
SpecularColor = new Color(0.7f, 0.9f, 0.8f),
RefractiveIndex = 1.52f,
Transparency = 0.80f,
Ambient = 0.0f,
Diffuse = 0.2f,
Shininess = 200f,
Specular = 0.9f
};
ApplyMaterialToChildren(triangulated, glass);
var checkerboard = new Material
{
Texture = new CheckerTexture(new Color(0.95f, 0.95f, 0.95f), new Color(0.8f, 0.05f, 0.05f)),
Metallic = 0.4f,
SpecularColor = new Color(0.3f, 0.3f, 0.3f),
Reflective = 0.5f,
Roughness = 0.1f,
Ambient = 0.0f,
Diffuse = 0.3f
};
checkerboard.Texture.SetTransform(Transform.Scale(0.125f));
var group = new Group();
var floor = new Cube();
floor.SetMaterial(checkerboard);
floor.SetTransform(Transform.TranslateY(-1).Scale(5f));
group.AddChild(floor);
group.AddChild(triangulated);
group.AddChild(skySphere);
group.Divide(1);
var w = new World();
w.SetLights(new AreaLight(new Point(-80f, 80, -60), new Vector(100f, 0, 0), 6, new Vector(0, 0f, -10f), 3,
new Color(1.8f, 1.8f, 1.8f), new Sequence(0.7f, 0.3f, 0.9f, 0.1f, 0.5f)));
//w.SetLights(new PointLight(new Point(-30, 30, -30), new Color(1.4f, 1.4f, 1.4f)));
w.SetObjects(group);
//var width = 600;
//var height = 400;
//var transform = Transforms.View(new Point(0, 3.0f, -5f), new Point(0, 1, 0), new Vector(0, 1, 0));
//var c = new PinholeCamera(transform, MathF.PI / 3f, width, height);
////var ws = new ComposableWorldShading(3, GGXNormalDistribution.Instance, SchlickBeckmanGeometricShadow.Instance, SchlickFresnelFunction.Instance, w);
//var ws = new PhongWorldShading(5, w);
//var scene = new Scene(c, ws);
//var aaa = new AdaptiveRenderer(3, 0.05f, scene);
//var canvas = new Canvas(width, height);
var width = 600;
var height = 400;
var from = new Point(0, 2.5f, -2.5f);
var to = new Point(0.25f, 0.5f, 0);
var canvas = new Canvas(width, height);
var pps = new PerPixelSampler(10);
var fov = MathF.PI / 3f;
var aspectRatio = (float)width / height;
var transform = Transform.LookAt(from, to, new Vector(0, 1, 0));
//var camera = new PinholeCamera(transform, fov, aspectRatio);
var camera = new ApertureCamera(fov, aspectRatio, 0.08f, from, to, Vectors.Up);
// var cws = new PhongWorldShading(5, w);
var cws = new ComposableWorldSampler(2,
16,
GGXNormalDistribution.Instance,
GGXSmithGeometricShadow.Instance,
SchlickFresnelFunction.Instance,
w);
var ctx = new RenderContext(canvas, new RenderPipeline(cws, camera, pps));
Console.WriteLine("Rendering at {0}x{1}...", width, height);
var stopwatch = new Stopwatch();
stopwatch.Start();
//RenderContext.Render(canvas, aaa);
ctx.Render();
PPM.ToFile(canvas, Environment.GetFolderPath(Environment.SpecialFolder.MyPictures), "teapot");
stopwatch.Stop();
Console.WriteLine("Done ({0})", stopwatch.Elapsed);
}
public static void LowPolyTeapotTest()
{
var path = Path.Combine(GetExecutionPath(), "teapot-low.obj");
var data = ObjFile.ParseFile(path);
var triangulated = data.Groups[0];
triangulated.SetTransform(Transform.Scale(0.1f).RotateX(-MathF.PI / 2f));
var material = new Material
{
Texture = new SolidColor(new Color(0.3f, 0.3f, 1f)),
Reflective = 0.4f,
Ambient = 0.2f,
Diffuse = 0.3f
};
var floor = new Cube();
floor.SetMaterial(material);
var fg = new Group();
fg.AddChild(floor);
fg.SetTransform(Transform.TranslateY(-1).Scale(1f));
var g = new Group(fg, triangulated);
g.Divide(1);
var w = new World();
w.SetLights(new PointLight(new Point(-10, 10, -10), Colors.White));
w.SetObjects(g);
//var width = 300;
//var height = 200;
//var transform = Transforms.View(new Point(0, 1.5f, -5f), new Point(0, 1, 0), new Vector(0, 1, 0));
//var c = new PinholeCamera(transform, MathF.PI / 3f, width, height);
//var scene = new Scene(c, new PhongWorldShading(1, w));
//var canvas = new Canvas(width, height);
var width = 300;
var height = 200;
var from = new Point(0, 1.5f, -5f);
var to = new Point(0, 1, 0);
var canvas = new Canvas(width, height);
var pps = new PerPixelSampler(3);
var fov = MathF.PI / 3f;
var aspectRatio = (float)width / height;
var transform = Transform.LookAt(from, to, new Vector(0, 1, 0));
var camera = new PinholeCamera(transform, fov, aspectRatio);
var cws = new PhongWorldShading(1, w);
var ctx = new RenderContext(canvas, new RenderPipeline(cws, camera, pps));
Console.WriteLine("Rendering at {0}x{1}...", width, height);
var stopwatch = new Stopwatch();
stopwatch.Start();
//RenderContext.Render(canvas, scene);
ctx.Render();
PPM.ToFile(canvas, Environment.GetFolderPath(Environment.SpecialFolder.MyPictures), "teapot");
stopwatch.Stop();
Console.WriteLine("Done ({0})", stopwatch.Elapsed);
}
public static void SolidTestRender(int spp)
{
Console.WriteLine("Loading file...");
var filePath = Path.Combine(GetExecutionPath(), "neon_env.ppm");
//var filePath = Path.Combine(GetExecutionPath(), "winter_river_1k.ppm");
Console.WriteLine("Parsing file...");
var textureCanvas = PPM.ParseFile(filePath);
var image = new UVImage(textureCanvas);
var map = new TextureMap(image, UVMapping.Spherical);
var skySphere = new Sphere
{
Material =
{
Texture = map, Ambient = 1.0f, CastsShadows = false, Transparency = 0f, Roughness = 1f,
SpecularColor = new Color(0.0f, 0.0f, 0.0f)
}
};
skySphere.SetTransform(Transform.RotateY(3.3f).Scale(1000f));
var radius = 0.25f;
var red = new Material {
Texture = new SolidColor(new Color(1, 0, 0)), Reflective = 0.3f, Roughness = 0.3f, Ambient = 0.0f, Metallic = 0.3f, SpecularColor = new Color(0.3f, 0.3f, 0.3f)
};
var blue = new Material {
Texture = new SolidColor(new Color(0, 0, 1)), Reflective = 0.3f, Roughness = 0.3f, Ambient = 0.0f, Metallic = 0.3f, SpecularColor = new Color(0.3f, 0.3f, 0.3f)
};
var yellow = new Material {
Texture = new SolidColor(new Color(1, 1, 0)), Reflective = 0.3f, Roughness = 0.3f, Ambient = 0.0f, Metallic = 0.3f, SpecularColor = new Color(0.3f, 0.3f, 0.3f)
};
var white = new Material {
Texture = new SolidColor(new Color(1, 1, 1)), Reflective = 0.3f, Roughness = 0.3f, Ambient = 0.0f, Metallic = 0.3f, SpecularColor = new Color(0.3f, 0.3f, 0.3f)
};
var blackPip = new Material {
Texture = new SolidColor(new Color(0.1f, 0.1f, 0.1f)), Ambient = 0.0f, Roughness = 0.8f, Metallic = 0f, SpecularColor = new Color(0.2f, 0.2f, 0.2f)
};
var whitePip = new Material {
Texture = new SolidColor(new Color(0.95f, 0.95f, 0.95f)), Ambient = 0.0f, Roughness = 0.8f, Metallic = 0f, SpecularColor = new Color(0.2f, 0.2f, 0.2f)
};
var d1 = CutPips(RoundedCube(radius, blue), whitePip);
var d2 = CutPips(RoundedCube(radius, red), whitePip);
var d3 = CutPips(RoundedCube(radius, white), blackPip);
var d4 = CutPips(RoundedCube(radius, yellow), blackPip);
d1.SetTransform(Transform.RotateY(-2.2f).TranslateY(1f).Scale(0.5f));
d2.SetTransform(Transform.RotateZ(MathF.PI / 2f).TranslateY(1f).TranslateX(2f).TranslateZ(1f).Scale(0.5f));
d3.SetTransform(Transform.RotateY(0.5f).TranslateY(1f).TranslateX(-4f).TranslateZ(1f).Scale(0.5f));
d4.SetTransform(Transform.RotateY(-0.2f).TranslateY(3f).TranslateX(0.2f).TranslateZ(1.25f).Scale(0.5f));
var lightGray = new Color(0.48f, 0.48f, 0.48f);
var darkGray = new Color(0.15f, 0.15f, 0.15f);
//var s1 = new StripeTexture(lightGray, darkGray);
//var s2 = new StripeTexture(lightGray, darkGray);
//s2.SetTransform(Transforms.RotateY(MathF.PI / 2));
//var pattern = new BlendedCompositeTexture(s1, s2);
//pattern.SetTransform(Transforms.Scale(1f / 20f));
var pattern = new CheckerTexture(lightGray, darkGray);
pattern.SetTransform(Transform.Scale(1f / 20f));
var floor = new Cube
{
Material =
{
Texture = pattern,
Roughness = 0.5f,
Specular = 0.1f,
Diffuse = 0.3f,
Reflective = 0.15f,
SpecularColor = new Color(0.3f, 0.3f, 0.3f),
Ambient = 0f
}
};
floor.SetTransform(Transform.TranslateY(-1f).Scale(20f));
var g = new Group(d1, d2, d3, d4, floor, skySphere);
g.Divide(1);
var w = new World();
w.SetLights(new AreaLight(new Point(-8, 10, -10), new Vector(12f, 0, 0), 6, new Vector(0, 0f, -10f), 3,
new Color(1.1f, 1.1f, 1.1f), new Sequence(0.7f, 0.3f, 0.9f, 0.1f, 0.5f)));
//w.SetLights(new PointLight(new Point(-8, 10, -10), new Color(0.9f, 0.9f, 0.9f)));
//w.SetLights(new AreaLight(new Point(-3, 6, -4), new Vector(1f, 0, 0), 3, new Vector(0, 1f, 0), 3,
// new Color(1.4f, 1.4f, 1.4f), new Sequence(0.7f, 0.3f, 0.9f, 0.1f, 0.5f)));
//w.SetLights(new AreaLight(new Point(-10, 10, -10), new Vector(1,0,0), 4, new Vector(0,1,0), 3, Colors.White));
w.SetObjects(g);
//var width = 600;
//var height = 400;
//var transform = Transforms.View(new Point(0, 1.5f, -5f), new Point(0, 1, 0), new Vector(0, 1, 0));
//var c = new PinholeCamera(transform, MathF.PI / 3f, width, height);
//var ws = new ComposableWorldShading(2, GGXNormalDistribution.Instance, SchlickBeckmanGeometricShadow.Instance, SchlickFresnelFunction.Instance, w);
////var ws = new PhongWorldShading(2, w);
//var scene = new Scene(c, ws);
////var aaa = new AdaptiveRenderer(2, 0.01f, scene);
//var aaa = new SamplesPerPixelRenderer(24, scene);
//var canvas = new Canvas(width, height);
var width = 600;
var height = 400;
var from = new Point(0, 1.5f, -5f);
var to = new Point(0, 1, -0.5f);
var canvas = new Canvas(width, height);
var pps = new PerPixelSampler(spp);
var fov = MathF.PI / 3f;
var aspectRatio = (float)width / height;
var camera = new ApertureCamera(fov, aspectRatio, 0.15f, from, to, Vectors.Up);
//var transform = Transforms.View(from, to, new Vector(0, 1, 0));
//var camera = new PinholeCamera2(transform, fov, aspectRatio);
//var cws = new PhongWorldShading2(4, w);
var cws = new ComposableWorldSampler(2,
4,
GGXNormalDistribution.Instance,
SchlickBeckmanGeometricShadow.Instance,
SchlickFresnelFunction.Instance,
w);
var ctx = new RenderContext(canvas, new RenderPipeline(cws, camera, pps));
Console.WriteLine("Rendering at {0}x{1}...", width, height);
var stopwatch = new Stopwatch();
stopwatch.Start();
ctx.Render();
// RenderContext.Render(canvas, aaa);
PPM.ToFile(canvas, Environment.GetFolderPath(Environment.SpecialFolder.MyPictures), "solid");
stopwatch.Stop();
Console.WriteLine("Done ({0})", stopwatch.Elapsed);
}
public static void RowTestByDelegate(int spp, string fileSuffix, Func <int, Material> materialFunc)
{
Console.WriteLine("Loading file...");
var filePath = Path.Combine(GetExecutionPath(), "winter_river_1k.ppm");
Console.WriteLine("Parsing file...");
var textureCanvas = PPM.ParseFile(filePath);
var image = new UVImage(textureCanvas);
var map = new TextureMap(image, UVMapping.Spherical);
var skySphere = new Sphere
{
Material = { Texture = map, Ambient = 1.5f, CastsShadows = false, Transparency = 1f }
};
skySphere.SetTransform(Transform.RotateY(3.4f).Scale(1000f));
var g = new Group();
var dx = 2.75f;
var dz = 3.5f;
var y = 1f;
var nX = 10;
var nZ = 1;
int n = 0;
for (var z = 0; z < nZ; z++)
{
for (var x = 0; x < nX; x++)
{
var s = new Sphere();
s.SetTransform(Transform.TranslateY(1f).Scale(1.2f).Translate(x * dx, 0, z * dz));
s.SetMaterial(materialFunc(x + 1));
g.AddChild(s);
n++;
}
}
var lightGray = new Color(0.9f, 0.9f, 0.9f);
var darkGray = new Color(0.1f, 0.9f, 0.1f);
var s1 = new StripeTexture(lightGray, darkGray);
var s2 = new StripeTexture(lightGray, darkGray);
s2.SetTransform(Transform.RotateY(MathF.PI / 2));
var pattern = new BlendedCompositeTexture(s1, s2);
pattern.SetTransform(Transform.Scale(1f / 30f));
var text = new CheckerTexture(new Color(0.3f, 0.7f, 0.3f), new Color(0.13f, 0.13f, 0.13f));
text.SetTransform(Transform.Scale(1f / 16f));
var floor = new Cube
{
Material =
{
Texture = text,
SpecularColor = new Color(0.3f, 0.3f, 0.3f),
Metallic = 0f,
Roughness = 0.45f,
Ambient = 0.15f
}
};
floor.SetTransform(Transform.TranslateY(-1f).Scale(40f));
var min = g.LocalBounds().Min;
var max = g.LocalBounds().Max;
var dir = max - min;
var mid = min + (dir * 0.5f);
var g2 = new Group(g, floor, skySphere);
g2.Divide(1);
var w = new World();
w.SetLights(new PointLight(new Point(mid.X, 500, -500), new Color(1.7f, 1.7f, 1.7f)));
w.SetObjects(g2);
var width = 1200;
var height = 140;
var from = new Point(mid.X, 6f, -32f);
var to = mid;
var canvas = new Canvas(width, height);
var pps = new PerPixelSampler(spp);
var fov = MathF.PI / 4f;
var aspectRatio = (float)width / height;
var camera = new ApertureCamera(fov, aspectRatio, 0.2F, from, to, Vectors.Up);
var cws = new ComposableWorldSampler(2,
16,
GGXNormalDistribution.Instance,
GGXSmithGeometricShadow.Instance,
SchlickFresnelFunction.Instance,
w);
var ctx = new RenderContext(canvas, new RenderPipeline(cws, camera, pps));
Console.WriteLine("Rendering at {0}x{1}...", width, height);
var stopwatch = new Stopwatch();
stopwatch.Start();
ctx.Render();
PPM.ToFile(canvas, Environment.GetFolderPath(Environment.SpecialFolder.MyPictures), "col_row_" + fileSuffix);
stopwatch.Stop();
Console.WriteLine("Done ({0})", stopwatch.Elapsed);
}
public static void ColRowTestRender()
{
Console.WriteLine("Loading file...");
//var filePath = Path.Combine(GetExecutionPath(), "indoor_env.ppm");
var filePath = Path.Combine(GetExecutionPath(), "winter_river_1k.ppm");
Console.WriteLine("Parsing file...");
var textureCanvas = PPM.ParseFile(filePath);
var image = new UVImage(textureCanvas);
var map = new TextureMap(image, UVMapping.Spherical);
var skySphere = new Sphere()
{
Material = { Texture = map, Ambient = 1.5f, CastsShadows = false, Transparency = 1f }
};
skySphere.SetTransform(Transform.RotateY(3.4f).Scale(1000f));
var g = new Group();
var dx = 2.75f;
var dz = 3.5f;
var y = 1f;
var nX = 10;
var nZ = 1;
var delta = 1f / (nX * nZ - 1);
int n = 0;
bool metallic = false;
for (var z = 0; z < nZ; z++)
{
for (var x = 0; x < nX; x++)
{
var s = new Sphere();
s.SetTransform(Transform.TranslateY(1f).Scale(1.2f).Translate(x * dx, 0, z * dz));
// var color = x % 2 == 0 ? new Color(1f, 1f, 1f) : new Color(1f, 0.3f, 0.3f);
var color = new Color(1f, 0.3f, 0.3f);
s.Material.Texture = SolidColor.Create(color);
s.Material.SpecularColor = metallic ? color : new Color(0.2f, 0.2f, 0.2f);
s.Material.Roughness = MathFunction.Saturate(n * delta + 0.01f);
s.Material.Metallic = metallic ? 1f : 0f;
s.Material.Ambient = 0f;
s.Material.Reflective = 0.9f;
g.AddChild(s);
n++;
}
}
var lightGray = new Color(0.9f, 0.9f, 0.9f);
var darkGray = new Color(0.1f, 0.9f, 0.1f);
var s1 = new StripeTexture(lightGray, darkGray);
var s2 = new StripeTexture(lightGray, darkGray);
s2.SetTransform(Transform.RotateY(MathF.PI / 2));
var pattern = new BlendedCompositeTexture(s1, s2);
pattern.SetTransform(Transform.Scale(1f / 30f));
var text = new CheckerTexture(new Color(0.3f, 0.7f, 0.3f), new Color(0.13f, 0.13f, 0.13f));
text.SetTransform(Transform.Scale(1f / 16f));
var floor = new Cube
{
Material =
{
Texture = text,
SpecularColor = new Color(0.3f, 0.3f, 0.3f),
Metallic = 0f,
Roughness = 0.45f,
Ambient = 0.15f
}
};
floor.SetTransform(Transform.TranslateY(-1f).Scale(40f));
var min = g.LocalBounds().Min;
var max = g.LocalBounds().Max;
var dir = max - min;
var mid = min + (dir * 0.5f);
var g2 = new Group(g, floor, skySphere);
//var g2 = new Group(g);
g2.Divide(1);
var w = new World();
w.SetLights(new PointLight(new Point(mid.X, 500, -500), new Color(1.7f, 1.7f, 1.7f)));
w.SetObjects(g2);
//var width = 1200;
//var height = 140;
//var transform = Transforms.View(new Point(mid.X, 6f, -32f), mid, new Vector(0, 1, 0));
//var c = new PinholeCamera(transform, MathF.PI / 4f, width, height);
////var c = new ApertureCamera(MathF.PI / 4f, width, height, 0.04f, new Point(mid.X, 6f, -32f), mid);
//var ws = new ComposableWorldShading(3, GGXNormalDistribution.Instance, GGXSmithGeometricShadow.Instance, SchlickFresnelFunction.Instance, w);
////var ws = new PhongWorldShading(3, w);
//var scene = new Scene(c, ws);
//var aaa = new AdaptiveRenderer(4, 0.00001f, scene);
//var canvas = new Canvas(width, height);
var width = 1200;
var height = 140;
var from = new Point(mid.X, 6f, -32f);
var to = mid;
var canvas = new Canvas(width, height);
var pps = new PerPixelSampler(400);
var fov = MathF.PI / 4f;
var aspectRatio = (float)width / height;
var camera = new ApertureCamera(fov, aspectRatio, 0.2F, from, to, Vectors.Up);
var cws = new ComposableWorldSampler(2,
16,
GGXNormalDistribution.Instance,
GGXSmithGeometricShadow.Instance,
SchlickFresnelFunction.Instance,
w);
var ctx = new RenderContext(canvas, new RenderPipeline(cws, camera, pps));
Console.WriteLine("Rendering at {0}x{1}...", width, height);
var stopwatch = new Stopwatch();
stopwatch.Start();
ctx.Render();
//RenderContext.Render(canvas, aaa);
PPM.ToFile(canvas, Environment.GetFolderPath(Environment.SpecialFolder.MyPictures), "col_row");
stopwatch.Stop();
Console.WriteLine("Done ({0})", stopwatch.Elapsed);
}
public static void InsideSphere()
{
Console.WriteLine("Loading file...");
var filePath = Path.Combine(GetExecutionPath(), "winter_river_1k.ppm");
Console.WriteLine("Parsing file...");
var textureCanvas = PPM.ParseFile(filePath);
var image = new UVImage(textureCanvas);
var map = new TextureMap(image, UVMapping.Spherical);
var skySphere = new Sphere()
{
Material = { Texture = map, Ambient = 1.2f, CastsShadows = false, Transparency = 1f }
};
skySphere.SetTransform(Transform.RotateY(2.1f).Scale(1000f));
var s = new Sphere
{
Material =
{
Roughness = 0.1f,
Texture = SolidColor.Create(new Color(1f, 0.0f, 0.0f)),
SpecularColor = new Color(0.2f, 0.2f, 0.2f),
Metallic = 0f,
Ambient = 0f
}
};
var g = new Group();
g.AddChild(skySphere);
g.AddChild(s);
g.Divide(1);
var w = new World();
w.SetLights(new PointLight(new Point(100, 100, -100), new Color(1f, 1f, 1f)));
w.SetObjects(g);
var width = 400;
var height = 400;
var from = new Point(0, -0.8f, -4f);
var to = new Point(0, 0, 0);
var canvas = new Canvas(width, height);
var pps = new PerPixelSampler(1000);
var fov = 0.8f;
var aspectRatio = (float)width / height;
var camera = new ApertureCamera(fov, aspectRatio, 0.05F, from, to, Vectors.Up);
var cws = new ComposableWorldSampler(1,
2,
GGXNormalDistribution.Instance,
SchlickBeckmanGeometricShadow.Instance,
SchlickFresnelFunction.Instance,
w);
var ctx = new RenderContext(canvas, new RenderPipeline(cws, camera, pps));
Console.WriteLine("Rendering at {0}x{1}...", width, height);
var stopwatch = new Stopwatch();
stopwatch.Start();
ctx.Render();
PPM.ToFile(canvas, Environment.GetFolderPath(Environment.SpecialFolder.MyPictures), "sky_sphere");
stopwatch.Stop();
Console.WriteLine("Done ({0})", stopwatch.Elapsed);
}
public static void SphereMappingTestRender()
{
Console.WriteLine("Loading file...");
var filePath = Path.Combine(GetExecutionPath(), "winter_river_1k.ppm");
Console.WriteLine("Parsing file...");
var textureCanvas = PPM.ParseFile(filePath);
var image = new UVImage(textureCanvas);
var map = new TextureMap(image, UVMapping.Spherical);
Sphere Sphere(float rotY, float rotX, float tx, float ty)
{
var s = new Sphere()
{
Material = { Texture = map }
};
s.SetTransform(Transform.RotateY(rotY).RotateX(rotX).Translate(tx, ty, 0));
return(s);
}
var g = new Group();
g.AddChild(Sphere(0.7854f, 0.7854f, -6, 2));
g.AddChild(Sphere(2.3562f, 0.7854f, -2, 2));
g.AddChild(Sphere(3.927f, 0.7854f, 2, 2));
g.AddChild(Sphere(5.4978f, 0.7854f, 6, 2));
g.AddChild(Sphere(0.7854f, -0.7854f, -6, -2));
g.AddChild(Sphere(2.3562f, -0.7854f, -2, -2));
g.AddChild(Sphere(3.927f, -0.7854f, 2, -2));
g.AddChild(Sphere(5.4978f, -0.7854f, 6, -2));
g.Divide(1);
var w = new World();
w.SetLights(new PointLight(new Point(0, 2, -100), Colors.White));
w.SetObjects(g);
var width = 800;
var height = 400;
var from = new Point(0, 0, -20f);
var to = new Point(0, 0, 0);
var canvas = new Canvas(width, height);
var pps = new PerPixelSampler(16);
var fov = 0.8f;
var aspectRatio = (float)width / height;
var transform = Transform.LookAt(from, to, new Vector(0, 1, 0));
var camera = new PinholeCamera(transform, fov, aspectRatio);
var cws = new PhongWorldShading(1, w);
var ctx = new RenderContext(canvas, new RenderPipeline(cws, camera, pps));
Console.WriteLine("Rendering at {0}x{1}...", width, height);
var stopwatch = new Stopwatch();
stopwatch.Start();
ctx.Render();
PPM.ToFile(canvas, Environment.GetFolderPath(Environment.SpecialFolder.MyPictures), "mapping_spheres");
stopwatch.Stop();
Console.WriteLine("Done ({0})", stopwatch.Elapsed);
}