public Color ColorCastAtPrimitive(ref Ray ray, int depth)
{
HitInfo hi = new HitInfo();
Primitive nearestHit = null;
nearestHit = CastAtPrimitive(ref ray, ref hi);
if (nearestHit != null)
{
MultiColor baze = new MultiColor();
baze.diffuse = new Color(1, 1, 1);
baze.specular = new Color(1, 1, 1);
Triangle triHit = null;
Sphere sphHit = null;
//if (nearestHit is Triangle)
// triHit=(Triangle)nearestHit;
//if (nearestHit is Sphere)
// sphHit = (Sphere)nearestHit;
// Sphere sphHit =null;
if (nearestHit.GetMaterial().texture != null)
{
if (nearestHit is Triangle)
{
triHit = nearestHit as Triangle;
Vector3 texUV =
triHit.UVx * hi.uvw.x +
triHit.UVy * hi.uvw.y +
triHit.UVz * hi.uvw.z;
int texX = (int)((triHit.GetMaterial().texture.Width - 1) * texUV.x);
int texY = (int)((triHit.GetMaterial().texture.Height - 1) * texUV.y);
System.Drawing.Color tem = triHit.GetMaterial().texture.GetPixel(texX, texY);
baze.diffuse.Set(tem.R, tem.G, tem.B);
}
else if (nearestHit is Sphere)
{
sphHit = nearestHit as Sphere;
Console.WriteLine("xD1");
Console.ReadLine();
Vector3 hit = (hi.point - sphHit.Center) / sphHit.Radius;
double theta, phi;
Vector3 texUV = new Vector3();
theta = Math.Acos(hit.y);
phi = Math.Atan2(hit.x, hit.z);
if (phi < 0.0)
{
phi += 6.28318;
}
if (phi > 6.28318)
{
phi -= 6.28318;
}
if (theta < 0.0)
{
theta += 3.14159;
}
if (theta > 3.14159)
{
theta -= 3.14159;
}
texUV.y = (float)(phi * 0.159154); // u
texUV.x = (float)(1.0 - theta * 0.318309); // v
/*texUV = texUV*4;
* texUV.x = fmod(texUV.x, 1);
* texUV.y = fmod(texUV.y, 1);
* texUV.z = fmod(texUV.z, 1);*/
int texY = (int)((sphHit.GetMaterial().texture.Width - 1) * (1 - texUV.x));
int texX = (int)((sphHit.GetMaterial().texture.Height - 1) * texUV.y);
System.Drawing.Color tem = sphHit.GetMaterial().texture.GetPixel(texX, texY);
//Console.WriteLine((tem.R / 255.0) + "," + (tem.G / 255.0) + "," + (tem.B / 255.0));
baze.diffuse.Set(tem.R, tem.G, tem.B);
// baze.diffuse.Set(sphHit.GetMaterial().diffuseColor.Red(), sphHit.GetMaterial().diffuseColor.Green(), sphHit.GetMaterial().diffuseColor.Blue());
}
}
Color basicColor = new Color();
MultiColor result = new MultiColor();
//if (!baze.specular.isZero() && !baze.specular.isOne())
// baze.specular.Show();
foreach (Light l in scene.lights)
{
MultiColor tmpColor = new MultiColor();
tmpColor.diffuse = baze.diffuse;
tmpColor.specular = baze.specular;
l.TestColor(ref ray, ref hi, ref nearestHit, ref scene.primitives, ref tmpColor);
result.diffuse = result.diffuse + tmpColor.diffuse;
result.specular = result.specular + tmpColor.specular;
}
basicColor = result.diffuse + result.specular + scene.ambientColor * nearestHit.GetMaterial().diffuseColor;
double mirror = nearestHit.GetMaterial().mirror;
double refractive = nearestHit.GetMaterial().refractive;
if (depth > 0)
{
Color mirrorColor = new Color();
Color refractColor = new Color();
bool combine = false;
if (mirror > 0)
{
Vector3 nextRayDirection = ray.Direction.Reflect(hi.normal);
Ray nextRay = new Ray(hi.point + nextRayDirection * 0.01, nextRayDirection);
mirrorColor = ColorCastAtPrimitive(ref nextRay, depth - 1);
combine = true;
}
if (refractive > 0)
{
Vector3 refractiveDir = (ray.Direction - hi.normal * (nearestHit.GetMaterial().refractiveIndex - 1)).GetNormalized();
Ray insideRay = new Ray(hi.point - refractiveDir, refractiveDir);
HitInfo outHit = new HitInfo();
int secondResult = nearestHit.Intersect(ref insideRay, ref outHit);
if (secondResult == -1)
{
Vector3 refractiveDir2 = (insideRay.Direction + outHit.normal * (1 - nearestHit.GetMaterial().refractiveIndex)).GetNormalized();
Ray movedRay = new Ray(outHit.point + refractiveDir2 * 0.01, refractiveDir2);
refractColor = ColorCastAtPrimitive(ref movedRay, depth - 1);
}
Ray temp = new Ray(hi.point + refractiveDir * 0.01, refractiveDir);
refractColor = ColorCastAtPrimitive(ref temp, depth - 1);
combine = true;
}
if (combine)
{
Color c = basicColor * (1.0 - mirror - refractive) + mirrorColor * mirror + refractColor * refractive;
return(c);
}
else
{
return(basicColor);
}
}
else
{
return(basicColor);
}
}
else
{
return(new Color(0, 0, 0));
}
}
static void Main(string[] args)
{
// //Console.WriteLine("ball \n");
//Sphere ball = new Sphere(new Vector3(0f,0f,0f),10f);`
//// Console.WriteLine("ray1 \n");
// Ray ray1 = new Ray(new Vector3(0, 0, -20), new Vector3(0f, 0f, 1f));
// // Console.WriteLine("ray2 \n");
// Ray ray2 = new Ray(new Vector3(0, 0, -20), new Vector3(0f, 1f, 0f));
// float distance1 = 40.0f;
// int intersection1 = ball.countIntersection(ray1, distance1, out float d1);
// distance1 = d1;
// Console.WriteLine("Intersection between ball and ray1:" + intersection1+"\n");
// Console.WriteLine("Closest intersection point:" +ray1.PointAtDistance(distance1).ToString() + "\n");
// float distance2 = 20.0f;
// int intersection2 = ball.countIntersection(ray2, distance2, out float d2);
// distance2 = d2;
// Console.WriteLine("Intersection between ball and ray2:" + intersection2 + "\n");
//// Console.WriteLine("ray3 \n");
// Ray ray3 = new Ray(new Vector3(0, 10, 10), new Vector3(0, -1, 0));
// float distance3 = 20.0f;
// int intersection3 = ball.countIntersection(ray3, distance3, out float d3);
// distance3 = d3;
// Console.WriteLine("Intersection between ball and ray3:" + intersection3 + "\n");
// Console.WriteLine("Closest intersection point:" + ray3.PointAtDistance(distance3).ToString() + "\n");
// // Console.WriteLine("Plane \n");
// Plane p = new Plane(new Vector3(0, 1, 1), new Vector3(0));
// float distance4 = 30.0f;
// int intersection4 = p.countIntersection(ray2, distance4, out float d4);
// distance4 = d4;
// Console.WriteLine("Intersection between plane and ray2:" + intersection4 + "\n");
// Console.WriteLine("Closest intersection point:" + ray2.PointAtDistance(distance4).ToString() + "\n");
//ZAD2
string path = Directory.GetCurrentDirectory() + "\\1a.bmp";
Bitmap imagex = new Bitmap(path);
Bitmap image = new Bitmap(1024, 1024,
System.Drawing.Imaging.PixelFormat.Format32bppRgb);
Bitmap image1 = new Bitmap(1024, 1024,
System.Drawing.Imaging.PixelFormat.Format32bppRgb);
string fileToRead = Directory.GetCurrentDirectory() + "\\CubeTex2.obj";
ObjReader oRead = new ObjReader();
ObjFile meshes = oRead.ReadFromFile(fileToRead);
Primitive plane1 = new Plane(new Vector3(0, 1.5f, 0), new Vector3(0, -1, 0));
plane1.GetMaterial().diffuseColor = new Color(0, 0, 1);
Primitive plane2 = new Plane(new Vector3(0, 0.0f, 12), new Vector3(0, 0, -1));
plane2.GetMaterial().diffuseColor = new Color(0.8, 0.8, 0.2);
// plane2.GetMaterial().mirror = 0.9;
Primitive plane3 = new Plane(new Vector3(0, -2.5f, 0), new Vector3(0, 1, 0));
plane3.GetMaterial().diffuseColor = new Color(1, 1, 1);
//plane3.GetMaterial().mirror = 0.9;
Primitive plane4 = new Plane(new Vector3(3, 0, 0), new Vector3(-1, 0, 0));
plane4.GetMaterial().diffuseColor = new Color(0.1, 1, .1);
//plane3.GetMaterial().mirror = 0.9;
Primitive plane5 = new Plane(new Vector3(-3, 0, 0), new Vector3(1, 0, 0));
plane5.GetMaterial().diffuseColor = new Color(1, .1, .1);
// plane5.GetMaterial().mirror = 0.9;
Primitive plane6 = new Plane(new Vector3(0, 0, -4), new Vector3(0, 0, 1));
plane6.GetMaterial().diffuseColor = new Color(0.2, 0.2, 0.2);
Primitive ball1 = new Sphere(new Vector3(-1, -0.5f, 1.7f), 0.8f);
Primitive ball2 = new Sphere(new Vector3(1, -0.5f, 1.7f), 0.8f);
ball1.GetMaterial().diffuseColor = new Color(1.0, 1.0, 1.0);
ball1.GetMaterial().specularColor = new Color(1.0, 1.0, 1.0);
ball1.GetMaterial().shininess = 12;
ball1.GetMaterial().mirror = 1;
ball1.GetMaterial().refractive = 0;
ball1.GetMaterial().refractiveIndex = 3.5;
ball2.GetMaterial().diffuseColor = new Color(0, 1, 0);
ball2.GetMaterial().specularColor = new Color(1.0, 1.0, 1.0);
ball2.GetMaterial().shininess = 12;
ball2.GetMaterial().mirror = 1;
ball2.GetMaterial().refractive = 0;
ball2.GetMaterial().refractiveIndex = 1.5;
// Console.WriteLine(meshes.meshes[0].name);
// Console.WriteLine(oRead.ReadFromFile(fileToRead).meshes.Count);
Scene scene = new Scene();
Mesh mesh = meshes.meshes[0];
// mesh.obj.Move(new Vector3(0, -1, 0));
mesh.SetTextureForAllFaces(imagex);
// ball1.GetMaterial().texture = imagex;
scene.AddPrimitiveForRendering(ref ball1);
scene.AddPrimitiveForRendering(ref ball2);
scene.AddMeshForRendering(ref mesh);
scene.AddPrimitiveForRendering(ref plane1);
scene.AddPrimitiveForRendering(ref plane2);
scene.AddPrimitiveForRendering(ref plane3);
scene.AddPrimitiveForRendering(ref plane4);
scene.AddPrimitiveForRendering(ref plane5);
// scene.AddPrimitiveForRendering(ref plane6);
PointLight pl1 = new PointLight(new Vector3(-0.5f, -0.5f, -1), new Color(0.7, 0.7, 0.7));
PointLight pl0 = new PointLight(new Vector3(-1, 0, 2), new Color(0.9, 0.9, 0.5));
PointLight pl12 = new PointLight(new Vector3(-1, 0, 6), new Color(0.9, 0.1, 0.9));
//PointLight pl1 = new PointLight(new Vector3(1, 0, -1), new Color(1, 1, 1));
//PointLight pl0 = new PointLight(new Vector3(-1, -0.5f, -1.5f), new Color(0.7, 0.7, 0.7));
scene.lights.Add(pl1);
scene.lights.Add(pl0);
// scene.lights.Add(pl12);
Ortho ort = new Ortho(new Vector3(-0.2f, -0.8f, -2f), new Vector3(0.1f, 0.1f, 1));
ort.adaptiveDepth = 2;
ort.scene = scene;
Console.WriteLine("Zapisywanie do pliku obrazu z kamery ort");
ort.RenderTo(ref image);
image.Save("D:\\Raytracer\\" + "ortho.jpg");
// Perspective per = new Perspective(new Vector3(0.0f, 0.0f, 1.0f), new Vector3(0.0f, 0.0f, -3));
Perspective per = new Perspective(new Vector3(-0.2f, -0.8f, -2f), new Vector3(0.1f, 0.1f, 1));
per.Position = new Vector3(0, 0, -3);
per.Target = new Vector3(0, 0, 1);
per.scene = scene;
per.adaptiveDepth = 2;
per.fov = 75;
Console.WriteLine("Zapisywanie do pliku obrazu z kamery per");
per.RenderTo(ref image1);
image1.Save("D:\\Raytracer\\" + "perpektywa.jpg");
Console.WriteLine((pl1.count + pl0.count));
Console.WriteLine("Koniec");
//ort.RenderTo(ref image, spheres);
//per.RenderTo(image1, spheres);
}