private void InitScene()
{
int width = 2000;
int height = 1000;
bool isSky = true;
Vector3D lookFrom = new Vector3D(13, 2, 3);
Vector3D lookAt = new Vector3D(0, 0, 0);
float diskToFocus = (lookFrom - lookAt).Length();
float aperture = 0;
Camera camera = new Camera(lookFrom, lookAt, new Vector3D(0, 1, 0), 20,
(float)width / (float)height, aperture, 0.7f * diskToFocus, 0, 1);
Texture checker = new CheckerTexture(
new ConstantTexture(new Vector3D(0.2f, 0.3f, 0.1f)),
new ConstantTexture(new Vector3D(0.9f, 0.9f, 0.9f)));
List <Hitable> list = new List <Hitable>();
list.Add(new Sphere(new Vector3D(0, -1000, 0), 1000, new Lambertian(checker)));
for (int a = -11; a < 11; a++)
{
for (int b = -11; b < 11; b++)
{
double chooseMat = Mathf.Randomfloat();
Vector3D center = new Vector3D(a + 0.9f * Mathf.Randomfloat(), 0.2f, b + 0.9f * Mathf.Randomfloat());
if ((center - new Vector3D(4, 0.2f, 0)).Length() > 0.9)
{
if (chooseMat < 0.8)
{
list.Add(new MovingSphere(center, center + new Vector3D(0, 0.5f * Mathf.Randomfloat(), 0), 0, 1, 0.2f,
new Lambertian(new ConstantTexture(new Vector3D(
Mathf.Randomfloat() * Mathf.Randomfloat(),
Mathf.Randomfloat() * Mathf.Randomfloat(),
Mathf.Randomfloat() * Mathf.Randomfloat())))));
}
else if (chooseMat < 0.95)
{
list.Add(new Sphere(center, 0.2f, new Metal(new Vector3D(
0.5f * (1 + Mathf.Randomfloat()),
0.5f * (1 + Mathf.Randomfloat()),
0.5f * (1 + Mathf.Randomfloat())),
0.5f * (1 + Mathf.Randomfloat()))));
}
else
{
list.Add(new Sphere(center, 0.2f, new Dielectric(1.5f)));
}
}
}
}
list.Add(new Sphere(new Vector3D(0, 1, 0), 1, new Dielectric(1.5f)));
list.Add(new Sphere(new Vector3D(-4, 1, 0), 1, new Lambertian(new ConstantTexture(new Vector3D(0.4f, 0.2f, 0.1f)))));
list.Add(new Sphere(new Vector3D(4, 1, 0), 1, new Metal(new Vector3D(0.7f, 0.6f, 0.5f), 0)));
BVHNode bb = new BVHNode(list, list.Count, 0, 1);
HitableList world = new HitableList();
world.list.Add(bb);
scene = new Scene(width, height, world, isSky, camera, 0, false);
}
public void RepeatsInX()
{
var texture = new CheckerTexture(Colors.White, Colors.Black);
texture.LocalColorAt(new Point(0, 0, 0)).Should().Be(Colors.White);
texture.LocalColorAt(new Point(0.99f, 0, 0)).Should().Be(Colors.White);
texture.LocalColorAt(new Point(1.01f, 0, 0)).Should().Be(Colors.Black);
texture.LocalColorAt(new Point(2.01f, 0, 0)).Should().Be(Colors.White);
}
static public Shader create_some_setup_shader()
{
var some_setup = new Shader(Client, Shader.ShaderType.Material)
{
Name = "some_setup ",
UseMis = false,
UseTransparentShadow = true,
HeterogeneousVolume = false
};
var brick_texture = new BrickTexture();
brick_texture.ins.Vector.Value = new float4(0.000f, 0.000f, 0.000f);
brick_texture.ins.Color1.Value = new float4(0.800f, 0.800f, 0.800f);
brick_texture.ins.Color2.Value = new float4(0.200f, 0.200f, 0.200f);
brick_texture.ins.Mortar.Value = new float4(0.000f, 0.000f, 0.000f);
brick_texture.ins.Scale.Value = 1.000f;
brick_texture.ins.MortarSize.Value = 0.020f;
brick_texture.ins.Bias.Value = 0.000f;
brick_texture.ins.BrickWidth.Value = 0.500f;
brick_texture.ins.RowHeight.Value = 0.250f;
var checker_texture = new CheckerTexture();
checker_texture.ins.Vector.Value = new float4(0.000f, 0.000f, 0.000f);
checker_texture.ins.Color1.Value = new float4(0.000f, 0.004f, 0.800f);
checker_texture.ins.Color2.Value = new float4(0.200f, 0.000f, 0.007f);
checker_texture.ins.Scale.Value = 5.000f;
var diffuse_bsdf = new DiffuseBsdfNode();
diffuse_bsdf.ins.Color.Value = new float4(0.800f, 0.800f, 0.800f);
diffuse_bsdf.ins.Roughness.Value = 0.000f;
diffuse_bsdf.ins.Normal.Value = new float4(0.000f, 0.000f, 0.000f);
var texture_coordinate = new TextureCoordinateNode();
some_setup.AddNode(brick_texture);
some_setup.AddNode(checker_texture);
some_setup.AddNode(diffuse_bsdf);
some_setup.AddNode(texture_coordinate);
brick_texture.outs.Color.Connect(diffuse_bsdf.ins.Color);
checker_texture.outs.Color.Connect(brick_texture.ins.Mortar);
texture_coordinate.outs.Normal.Connect(checker_texture.ins.Vector);
texture_coordinate.outs.UV.Connect(brick_texture.ins.Vector);
diffuse_bsdf.outs.BSDF.Connect(some_setup.Output.ins.Surface);
some_setup.FinalizeGraph();
return(some_setup);
}
private HitableList TwoSpheres()
{
List <IHitable> list = new List <IHitable>();
Texture checker = new CheckerTexture(
new ConstantTexture(new Vector3D(0.2, 0.3, 0.1)),
new ConstantTexture(new Vector3D(0.9, 0.9, 0.9)));
list.Add(new Sphere(new Vector3D(0, -10, 0), 10, new Lambertian(checker)));
list.Add(new Sphere(new Vector3D(0, 10, 0), 10, new Lambertian(checker)));
return(new HitableList(list, list.Count));
}
public static List <Hitable> MakeSphereScene(ContentManager content, int sceneComplexity)
{
var list = new List <Hitable>();
list.Add(new Sphere(new Vector3(0, -1000, 0), 1000, new MetalMaterial(new CheckerTexture(), 0.2f)));
var temp = new Vector3(4, 0.2f, 0);
for (var a = -sceneComplexity; a < sceneComplexity; a++)
{
for (var b = -sceneComplexity; b < sceneComplexity; b++)
{
var chooseMat = Random.Value;
var center = new Vector3(a + 0.9f + Random.Value, 0.2f, b + 0.9f + Random.Value);
if ((center - temp).Length() > 0.9f)
{
if (chooseMat < 0.8f)
{
list.Add(new Sphere(center, 0.2f, new LambertMaterial(Random.Value, Random.Value, Random.Value)));
}
else if (chooseMat < 0.95f)
{
list.Add(new Sphere(center, 0.2f, new MetalMaterial(0.5f * (1 + Random.Value), 0.5f * (1 + Random.Value), 0.5f * (1 + Random.Value), 0.5f * Random.Value)));
}
else
{
list.Add(new Sphere(center, 0.2f, new MetalMaterial(0.5f * (1 + Random.Value), 0.5f * (1 + Random.Value), 0.5f * (1 + Random.Value), 0.5f * Random.Value)));
}
}
}
}
var earthTexture = content.Load <Texture2D>("earth");
var amigaTexture = new CheckerTexture(new ConstantTexture(new Color(0.9f, 0.0f, 0.0f)), new ConstantTexture(new Color(0.9f, 0.9f, 0.9f)));
var amigaEmissiveTexture = new CheckerTexture(new ConstantTexture(Color.Red), new ConstantTexture(Color.Black));
if (sceneComplexity > 0)
{
list.Add(new Sphere(new Vector3(0, 1, -2), 1, new LambertMaterial(new ImageTexture(earthTexture))));
list.Add(new Sphere(new Vector3(-4, 1, 0), 1, new LambertMaterial(amigaTexture, amigaEmissiveTexture)));
list.Add(new Sphere(new Vector3(4, 1, 0), 1, new MetalMaterial(0.7f, 0.6f, 0.5f, 0.0f)));
list.Add(new Cube(new Vector3(0, 0, 2), new Vector3(1, 1, 3), new LambertMaterial(amigaTexture)));
}
/*var skin_adventurer = content.Load<Texture2D>("skin_adventurer");
* list.Add(new Mesh(content.Load<Model>("basicCharacter"), new MetalMaterial(0, 0, 0, 0), 0.1f));*/
return(list);
}
public static (List <IHitable>, Camera) RandomScene(ImSoRandom rnd, int nx, int ny)
{
var world = new List <IHitable>();
var texture = new CheckerTexture(new ConstantTexture(0.2f, 0.3f, 0.1f), new ConstantTexture(0.9f, 0.9f, 0.9f));
world.Add(new Sphere(new Vector3(0, -1000f, 0), 1000, new Lambertian(texture)));
for (int a = -11; a < 11; a++)
{
for (int b = -11; b < 11; b++)
{
float choose_mat = rnd.NextFloat();
var center = new Vector3(a + 0.9f * rnd.NextFloat(), 0.2f, b + 0.9f * rnd.NextFloat());
if ((center - new Vector3(4, 0.2f, 0)).Length() > 0.9)
{
if (choose_mat < 0.8)
{ // diffuse
world.Add(new MovingSphere(center, center + new Vector3(0, 0.5f * rnd.NextFloat(), 0), 0.0f, 1.0f, 0.2f, new Lambertian(new ConstantTexture(rnd.NextFloat() * rnd.NextFloat(), rnd.NextFloat() * rnd.NextFloat(), rnd.NextFloat() * rnd.NextFloat()))));
//world.Add(new Sphere(center, 0.2f, new Lambertian(new Vector3(rnd.NextFloat() * rnd.NextFloat(), rnd.NextFloat() * rnd.NextFloat(), rnd.NextFloat() * rnd.NextFloat()))));
}
else if (choose_mat < 0.95)
{ // metal
world.Add(new Sphere(center, 0.2f,
new Metal(new Vector3(0.5f * (1 + rnd.NextFloat()), 0.5f * (1 + rnd.NextFloat()), 0.5f * (1 + rnd.NextFloat())), 0.5f * rnd.NextFloat())));
}
else
{ // glass
world.Add(new Sphere(center, 0.2f, new Dialectric(1.5f)));
}
}
}
}
world.Add(new Sphere(new Vector3(0, 1, 0), 1.0f, new Dialectric(1.5f)));
world.Add(new Sphere(new Vector3(-4, 1, 0), 1.0f, new Lambertian(new ConstantTexture(0.4f, 0.2f, 0.1f))));
world.Add(new Sphere(new Vector3(4, 1, 0), 1.0f, new Metal(new Vector3(0.7f, 0.6f, 0.5f), 0f)));
world.Add(new Sphere(new Vector3(0, 0, 0), 20.0f, new DiffuseLight(new ConstantTexture(new Vector3(1, 1, 1)))));
var lookFrom = new Vector3(13, 2, 3);
var lookAt = new Vector3(0, 0, 0);
var distToFocus = 10;
var aperture = 0.1f;
var cam = new Camera(lookFrom, lookAt, new Vector3(0, 1, 0), 20, (float)nx / (float)ny, aperture, distToFocus, 0.0f, 1.0f);
return(world, cam);
}
private HitableList RandomScene()
{
List <IHitable> list = new List <IHitable>();
Texture checker = new CheckerTexture(
new ConstantTexture(new Vector3D(0.2, 0.3, 0.1)),
new ConstantTexture(new Vector3D(0.9, 0.9, 0.9)));
list.Add(new Sphere(new Vector3D(0, -1000, 0), 1000, new Lambertian(checker)));
for (int a = -11; a < 11; a++)
{
for (int b = -11; b < 11; b++)
{
double chooseMat = RandomDouble();
Vector3D center = new Vector3D(a + 0.9 * RandomDouble(), 0.2, b + 0.9 * RandomDouble());
if ((center - new Vector3D(4, 0.2, 0)).Length() > 0.9)
{
if (chooseMat < 0.8)
{
list.Add(new MovingSphere(center, center + new Vector3D(0, 0.5 * RandomDouble(), 0), 0, 1, 0.2,
new Lambertian(new ConstantTexture(new Vector3D(
RandomDouble() * RandomDouble(),
RandomDouble() * RandomDouble(),
RandomDouble() * RandomDouble())))));
}
else if (chooseMat < 0.95)
{
list.Add(new Sphere(center, 0.2, new Metal(new ConstantTexture(new Vector3D(
0.5 * (1 + RandomDouble()),
0.5 * (1 + RandomDouble()),
0.5 * (1 + RandomDouble()))),
0.5 * (1 + RandomDouble()))));
}
else
{
list.Add(new Sphere(center, 0.2, new Dielectric(1.5)));
}
}
}
}
list.Add(new Sphere(new Vector3D(0, 1, 0), 1, new Dielectric(1.5)));
list.Add(new Sphere(new Vector3D(-4, 1, 0), 1, new Lambertian(
new ConstantTexture(new Vector3D(0.4, 0.2, 0.1)))));
list.Add(new Sphere(new Vector3D(4, 1, 0), 1, new Metal(
new ConstantTexture(new Vector3D(0.7, 0.6, 0.5)), 0)));
return(new HitableList(list, list.Count));
}
public CheckerTextureScene(double aspect)
{
var checker_texture = CheckerTexture.Create(0.2, 0.3, 0.2, 0.9, 0.9, 0.9);
IHitable[] hitables =
{
new Sphere(Vec3.Create(0, -10, 0), 10, new Lambertian(checker_texture)),
new Sphere(Vec3.Create(0, 10, 0), 10, new Lambertian(checker_texture))
};
World = new BVHNode(hitables, 0, 1);
var lookFrom = Vec3.Create(13, 2, 3);
var lookAt = Vec3.Create(0, 0, 0);
double dist_to_focus = 10;
double aderpture = 0;
Camera = Camera.CreateLookAt(lookFrom, lookAt, Vec3.Create(0, 1, 0), 20, aspect, aderpture, dist_to_focus);
}
public CoverSceneRT1Motion(double aspect)
{
var sampler = new Random();
List <IHitable> hitables = new List <IHitable>();
hitables.Add(new Sphere(Vec3.Create(0, -1000, 0), 1000, new Lambertian(CheckerTexture.Create(0.2, 0.3, 0.1, 0.9, 0.9, 0.9))));
for (int a = -11; a < 11; ++a)
{
for (int b = -11; b < 11; ++b)
{
double choos_mat = sampler.NextDouble();
Vec3 center = Vec3.Create(a + 0.9 * sampler.NextDouble(), 0.2, b + 0.9 * sampler.NextDouble());
if ((center - Vec3.Create(4, 0.2, 0)).Length > 0.9)
{
if (choos_mat < 0.8) // diffuse
{
hitables.Add(new MovingSphere(center, center + Vec3.Create(0, 0.5, 0) * sampler.NextDouble(), 0, 1, 0.2,
new Lambertian(ConstantTexture.Create(sampler.NextDouble() * sampler.NextDouble(), sampler.NextDouble() * sampler.NextDouble(), sampler.NextDouble() * sampler.NextDouble()))));
}
else if (choos_mat < 0.9) // metal
{
hitables.Add(new Sphere(center, 0.2,
new Metal(ConstantTexture.Create(0.5 * (1 + sampler.NextDouble()), 0.5 * (1 + sampler.NextDouble()), 0.5 * (1 + sampler.NextDouble())), 0.5 * sampler.NextDouble())));
}
else // glass
{
hitables.Add(new Sphere(center, 0.2, new Dielectric(1.5)));
}
}
}
}
hitables.Add(new Sphere(Vec3.Create(0, 1, 0), 1, new Dielectric(1.5)));
hitables.Add(new Sphere(Vec3.Create(-4, 1, 0), 1, new Lambertian(ConstantTexture.Create(0.4, 0.2, 0.1))));
hitables.Add(new Sphere(Vec3.Create(4, 1, 0), 1, new Metal(ConstantTexture.Create(0.7, 0.6, 0.5), 0)));
double time0 = 0;
double time1 = 1;
World = new BVHNode(hitables.ToArray(), time0, time1);
var lookFrom = Vec3.Create(12, 2, 3);
var lookAt = Vec3.Create(0, 0, 0);
double dist_to_focus = 10;
double aderpture = 0.1;
Camera = Camera.CreateLookAt(lookFrom, lookAt, Vec3.Create(0, 1, 0), 20, aspect, aderpture, dist_to_focus, time0, time1);
}
public List <IHittable> Generate()
{
var world = new List <IHittable>();
var checker = new CheckerTexture(new Vec3(0.2, 0.3, 0.1), new Vec3(0.9, 0.9, 0.9));
world.Add(new Sphere
{
Material = new Lambertian(checker),
Center = new Vec3(0, -10, 0),
Radius = 10
});
world.Add(new Sphere
{
Material = new Lambertian(checker),
Center = new Vec3(0, 10, 0),
Radius = 10
});
return(world);
}
internal static IHitTarget GenerateRandomBvhScene()
{
var rng = new Random();
var returnList = new List <IHitTarget>();
var checkerTexture = new CheckerTexture(new ConstantTexture(new Color(0.2, 0.3, 0.1)), new ConstantTexture(new Color(0.9, 0.9, 0.9)));
var perlinTexture = new NoiseTexture(new Color(1, 1, 1), 10.0, NoiseTypes.TURBULENCE);
returnList.Add(new Sphere(new Vec3(0, -1000, 0), 1000, new Lambertian(perlinTexture)));
for (var i = -11; i < 11; ++i)
{
for (var j = -11; j < 11; ++j)
{
var materialPicker = rng.NextDouble();
var center = new Vec3(i + 0.9 * rng.NextDouble(), 0.2, j + 0.9 * rng.NextDouble());
if (!((center - new Vec3(4, 0.2, 0)).GetLength() > 0.9))
{
continue;
}
if (materialPicker < 0.7)
{
returnList.Add(new Sphere(center, 0.2, new Lambertian(new ConstantTexture(new Color(rng.NextDouble() * rng.NextDouble(), rng.NextDouble() * rng.NextDouble(), rng.NextDouble() * rng.NextDouble())))));
}
else if (materialPicker < 0.8)
{
returnList.Add(new Sphere(center, 0.2, new Glossy(new Color(0.5 * (1 + rng.NextDouble()), 0.5 * (1 + rng.NextDouble()), 0.5 * (1 + rng.NextDouble())), 0.5 * rng.NextDouble())));
}
else
{
returnList.Add(new Sphere(center, 0.2, new Dielectric(new Color(1, 1, 1), 1.5)));
}
}
}
returnList.Add(new Sphere(new Vec3(0, 1, 0), 1.0, new Dielectric(new Color(1, 1, 1), 1.5)));
returnList.Add(new Sphere(new Vec3(-4, 1, 0), 1.0, new Lambertian(new ConstantTexture(new Color(0.4, 0.2, 0.1)))));
returnList.Add(new Sphere(new Vec3(4, 1, 0), 1.0, new Glossy(new Color(0.7, 0.6, 0.5), 0.05)));
return(new BvhNode(returnList, 0.0, 1.0));
}
public override Hitable GetObjects()
{
List <Hitable> list = new List <Hitable>();
var checker = new CheckerTexture(new ConstantTexture(new Vec3(0.2, 0.3, 0.1)), new ConstantTexture(new Vec3(0.9, 0.9, 0.9)));
list.Add(new Sphere(new Vec3(0.0, -1000.0, 0.0), 1000, new Lambertian(checker)));
for (int a = -11; a < 11; a++)
{
for (int b = -11; b < 11; b++)
{
double chooseMaterial = FastRandom.RandomDouble();
Vec3 center = new Vec3(a + 0.9 * FastRandom.RandomDouble(), 0.2, b + 0.9 * FastRandom.RandomDouble());
if ((center - new Vec3(4.0, 0.2, 0.0)).Length() > 0.9)
{
if (chooseMaterial < 0.8) // diffuse
{
list.Add(new MovingSphere(center, center + new Vec3(0.0, 0.5 * FastRandom.RandomDouble(), 0.0), 0.0, 1.0, 0.2, new Lambertian(new ConstantTexture(new Vec3(FastRandom.RandomDouble() * FastRandom.RandomDouble(), FastRandom.RandomDouble() * FastRandom.RandomDouble(), (FastRandom.RandomDouble() * FastRandom.RandomDouble()))))));
}
else if (chooseMaterial < 0.95) // metal
{
list.Add(new Sphere(center, 0.2, new Metal(new Vec3(0.5 * (1.0 + FastRandom.RandomDouble()), 0.5 * (1.0 + FastRandom.RandomDouble()), 0.5 * (1.0 + FastRandom.RandomDouble())), 0.5 * FastRandom.RandomDouble())));
}
else // dielectric
{
list.Add(new Sphere(center, 0.2, new Dielectric(1.5)));
}
}
}
}
list.Add(new Sphere(new Vec3(0.0, 1.0, 0.0), 1.0, new Dielectric(1.5)));
list.Add(new Sphere(new Vec3(-4.0, 1.0, 0.0), 1.0, new Lambertian(new ConstantTexture(new Vec3(0.4, 0.2, 0.1)))));
list.Add(new Sphere(new Vec3(4.0, 1.0, 0.0), 1.0, new Metal(new Vec3(0.7, 0.6, 0.5), 0.0)));
return((Hitable) new BvhNode(list, 0.0, 1.0));
}
/// <summary>
/// Scene from pdf 2, texture; two checker balls touching.
/// </summary>
private void CreateScene3()
{
// Set up camera
this.hFovDeg = 25;
var lookFrom = new Vec3(13, 2, 3);
var lookAt = new Vec3(0, 0, 0);
var lookUp = new Vec3(0, 1, 0);
float focusDist = 10;
float aperture = 0;
this.camera = new CartesianCamera(this.rows, this.columns, this.hFovDeg, lookFrom, lookAt, lookUp,
aperture, focusDist);
// Add items
var hitables = new List <Hitable>();
var oddTexture = new ConstantTexture(new Vec3(0.2f, 0.3f, 0.1f));
var evenTexture = new ConstantTexture(new Vec3(0.9f, 0.9f, 0.9f));
var checkerTexture = new CheckerTexture(evenTexture, oddTexture);
hitables.Add(new Sphere(new Vec3(0, -10, 0), 10, new Lambertian(checkerTexture)));
hitables.Add(new Sphere(new Vec3(0, 10, 0), 10, new Lambertian(checkerTexture)));
this.world = new HitableList(hitables);
}
public List <IHittable> Generate()
{
var world = new List <IHittable>();
var checker = new CheckerTexture(new Vec3(0.2, 0.3, 0.1), new Vec3(0.9, 0.9, 0.9));
var groundMat = new Lambertian(checker);
world.Add(new Sphere {
Center = new Vec3(0, -1000, 0), Radius = 1000, Material = groundMat
});
var earthTex = new ImageTexture("../../Data/earthmap.jpg");
var earthMat = new Lambertian(earthTex);
for (var a = -11; a < 11; a++)
{
for (var b = -11; b < 11; b++)
{
var chooseMat = MathUtils.RandDouble();
var radius = MathUtils.RandDouble(0.2, 0.3);
var offset = 1.0 - (radius / 2);
var center = new Vec3(
a + offset * MathUtils.RandDouble(),
radius,
b + offset * MathUtils.RandDouble());
if ((center - new Vec3(4, radius, 0)).Length <= 0.9)
{
continue;
}
if (chooseMat < 0.05)
{
var albedo = Vec3.Random() * Vec3.Random() * 10;
var mat = new DiffuseLight(albedo);
world.Add(new Sphere
{
Center = center,
Material = mat,
Radius = radius
});
}
if (chooseMat < 0.2)
{
var albedo = Vec3.Random() * Vec3.Random();
var mat = new Lambertian(albedo);
var c2 = center + new Vec3(0, MathUtils.RandDouble(0, 0.2), 0);
world.Add(new MovingSphere {
Center0 = center, Center1 = c2, Radius = radius, Time0 = 0, Time1 = 1, Material = mat
});
}
else if (chooseMat < 0.4)
{
world.Add(new Sphere {
Center = center, Radius = radius, Material = earthMat
});
}
else if (chooseMat < 0.6)
{
var color1 = Vec3.Random() * Vec3.Random();
var color2 = Vec3.One - color1;
var scale = MathUtils.RandomInt(3, 10);
var mat = new Lambertian(new NoiseTexture(color1, color2, scale));
world.Add(new Sphere {
Center = center, Radius = radius, Material = mat
});
}
else if (chooseMat < 0.8)
{
var albedo = Vec3.Random(0.5, 1);
var fuzz = MathUtils.RandDouble(0, 0.5);
var mat = new Metal {
Albedo = albedo, Fuzz = fuzz
};
world.Add(new Sphere {
Center = center, Radius = radius, Material = mat
});
}
else
{
var mat = new Dielectric {
RefractionIndex = 1.5
};
world.Add(new Sphere {
Center = center, Radius = radius, Material = mat
});
}
}
}
var mat1 = new Dielectric {
RefractionIndex = 1.5
};
var mat2 = new Lambertian(new Vec3(0.4, 0.2, 0.1));
var mat3 = new Metal {
Albedo = new Vec3(0.7, 0.6, 0.5), Fuzz = 0.0
};
world.Add(new Sphere {
Center = new Vec3(0, 1, 0), Radius = 1.0, Material = mat1
});
world.Add(new Sphere {
Center = new Vec3(-4, 1, 0), Radius = 1, Material = mat2
});
world.Add(new Sphere {
Center = new Vec3(4, 1, 0), Radius = 1.0, Material = mat3
});
return(world);
}
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 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 void CreateScene(int width, int height, FloatColor color, bool useAntialiasing)
{
var renderTarget = new Framebuffer(width, height);
renderTarget.Clear(color);
var objects = new List <IHittable>
{
new Plane(new Vector3(0, -2, 0), new Vector3(0, 1, 0),
new ReflectiveMaterial(FloatColor.White, 0.4f, 0, 1000, 0.6f, CheckerTexture.Create(FloatColor.Green, FloatColor.Black).ToInfo())),
new Sphere(new Vector3(-3.5f, 0, 0), 2,
new ReflectiveMaterial(FloatColor.UnityYellow, 0.7f, 0.5f, 1000, 0.3f)),
new Sphere(new Vector3(3.5f, 0, 0), 2,
new ReflectiveMaterial(Color.GreenYellow.ToFloatColor(), 0.7f, 0.5f, 1000, 0.3f)),
new Sphere(new Vector3(0, 0, 3.5f), 2,
new ReflectiveMaterial(Color.DeepSkyBlue.ToFloatColor(), 0.7f, 0.5f, 1000, 0.3f)),
new Sphere(new Vector3(0, 0, -3.5f), 2,
new TransparentMaterial(Color.Red.ToFloatColor(), 0.1f, 0, 0.3f, 1.05f, 0.9f)),
};
var sampler = new Sampler(new RegularGenerator(), new SquareDistributor(), 25, 1);
var camera = new PinholeCamera(renderTarget, new Vector3(6, 2, -15),
new Vector3(0, 0.3f, 0), new Vector3(0, -1, 0),
new Vector2(0.7f, 0.7f * height / width), 2)
{
Sampler = sampler,
MaxDepth = 5
};
Scene = new Scene(objects, camera,
new List <Light>
{
new PointLight
{
Position = new Vector3(-5, 5, -3),
Color = FloatColor.White,
Intensity = 2
},
},
FloatColor.Black);
}
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 IHitable GetWorld()
{
var list = new HitableList();
var checkerTexture = new CheckerTexture(
new ColorTexture(0.2f, 0.3f, 0.1f),
new ColorTexture(0.9f, 0.9f, 0.9f),
Vector3.One * 10.0f);
// original color of large sphere...
// var colorTexture = new ColorTexture(0.5f, 0.5f, 0.5f);
list.Add(new Sphere(new Vector3(0.0f, -1000.0f, 0.0f), 1000.0f, new LambertianMaterial(checkerTexture)));
for (int a = -11; a < 11; a++)
{
for (int b = -11; b < 11; b++)
{
float chooseMat = RandomService.Nextfloat();
var center = new Vector3(
Convert.ToSingle(a) * RandomService.Nextfloat(),
0.2f,
Convert.ToSingle(b) + (0.9f * RandomService.Nextfloat()));
if ((center - new Vector3(4.0f, 0.2f, 0.0f)).Length() > 0.9)
{
if (chooseMat < 0.8)
{
// diffuse
list.Add(
new Sphere(
center,
0.2f,
new LambertianMaterial(
new ColorTexture(
RandomService.Nextfloat() * RandomService.Nextfloat(),
RandomService.Nextfloat() * RandomService.Nextfloat(),
RandomService.Nextfloat() * RandomService.Nextfloat()))));
}
else if (chooseMat < 0.95)
{
// metal
list.Add(
new Sphere(
center,
0.2f,
new MetalMaterial(
new ColorVector(
0.5f * (1.0f + RandomService.Nextfloat()),
0.5f * (1.0f + RandomService.Nextfloat()),
0.5f * (1.0f + RandomService.Nextfloat())),
0.5f * RandomService.Nextfloat())));
}
else
{
// glass
list.Add(new Sphere(center, 0.2f, new DialectricMaterial(1.5f)));
}
}
}
}
list.Add(new Sphere(new Vector3(0.0f, 1.0f, 0.0f), 1.0f, new DialectricMaterial(1.5f)));
list.Add(new Sphere(new Vector3(-4.0f, 1.0f, 0.0f), 1.0f, new LambertianMaterial(new ColorTexture(0.4f, 0.2f, 0.1f))));
list.Add(new Sphere(new Vector3(4.0f, 1.0f, 0.0f), 1.0f, new MetalMaterial(new ColorVector(0.7f, 0.6f, 0.5f), 0.0f)));
return(new BvhNode(list, 0.0f, 1.0f));
}
/// <summary>
/// Scene from pdf 1; three spheres with lots around.
/// </summary>
private void CreateScene1()
{
Console.WriteLine("Populating scene..");
// Set up camera
this.hFovDeg = 35;
var lookFrom = new Vec3(13, 2, 3);
var lookAt = new Vec3(0, 0, 0);
var lookUp = new Vec3(0, 1, 0);
float focusDist = (lookAt - lookFrom).Length;
float aperture = 0.1f;
this.camera = new CartesianCamera(this.rows, this.columns, this.hFovDeg, lookFrom, lookAt, lookUp,
aperture, focusDist);
// Add spheres
var hitables = new List <Hitable>();
var oddTexture = new ConstantTexture(new Vec3(0.2f, 0.3f, 0.1f));
var evenTexture = new ConstantTexture(new Vec3(0.9f, 0.9f, 0.9f));
var checkerTexture = new CheckerTexture(evenTexture, oddTexture);
hitables.Add(new Sphere(new Vec3(0, -1000, 0), 1000, new Lambertian(checkerTexture)));
Random random = new Random(10);
int dim = this.ballPlacementDimension;
for (int a = -dim; a < dim; a++)
{
for (int b = -dim; b < dim; b++)
{
double chooseMat = random.NextDouble();
var center = new Vec3(a + 0.9f * (float)random.NextDouble(), 0.2f, b + 0.9f * (float)random.NextDouble());
if ((center - new Vec3(4, 0.2f, 0)).Length > 0.9)
{
if (chooseMat < 0.4) // diffuse
{
hitables.Add(new Sphere(center, 0.2f, new Lambertian(
new ConstantTexture(new Vec3((float)(random.NextDouble() * random.NextDouble()),
(float)(random.NextDouble() * random.NextDouble()),
(float)(random.NextDouble() * random.NextDouble()))))));
}
else if (chooseMat < 0.65) // metal
{
hitables.Add(new Sphere(center, 0.2f, new Metal(
new Vec3(0.5f * (float)(1 + random.NextDouble()),
0.5f * (float)(1 + random.NextDouble()),
0.5f * (float)(1 + random.NextDouble())),
0.5f * (float)random.NextDouble())));
}
else // glass
{
hitables.Add(new Sphere(center, 0.2f, new Dielectric(1.5f)));
}
}
}
}
hitables.Add(new Sphere(new Vec3(0, 1, 0), 1, new Dielectric(1.5f)));
hitables.Add(new Sphere(new Vec3(-4, 1, 0), 1, new Lambertian(new ConstantTexture(new Vec3(0.4f, 0.2f, 0.1f)))));
hitables.Add(new Sphere(new Vec3(4, 1, 0), 1, new Metal(new Vec3(0.7f, 0.6f, 0.5f), 0)));
//this.world = new HitableList(hitables);
this.world = new BVHNode(hitables, this.tMin, this.tMax, new Random());
Console.WriteLine("Populated Scene!");
}
