public static Scene Boolean(bool outlines)
{
Scene scene = new Scene(new Color(255, 255, 255));
Light sun = new LightDirectional(new Color(255, 255, 255), new Vector3(0, -1, 1), scene, false);
LightGroup lightGroup = new LightGroup();
lightGroup.addLight(sun);
Vector3 center1 = new Vector3(-12, 0, 30);
Vector3 center2 = new Vector3(-6, 0, 30);
Vector3 center3 = new Vector3(9, 0, 30);
Vector3 center4 = new Vector3(9, 1, 27);
double radius = 5;
double radius2 = 3;
SurfaceGeometry surfaceIntersection = new SurfaceIntersection(new VolumeSphere(center1, radius), new VolumeSphere(center2, radius));
SurfaceGeometry surfaceDifference = new SurfaceDifference(new VolumeSphere(center3, radius), new VolumeSphere(center4, radius2));
SurfaceMaterial diffuse = new SurfaceDiffuse(new Color(255, 255, 255), lightGroup);
SurfaceMaterial semiopaque = new SurfaceMaterialBlend(new SurfaceTransparent(scene), diffuse, 0.2);
scene.addSurface(new Surface(surfaceIntersection, diffuse));
scene.addSurface(new Surface(surfaceDifference, diffuse));
if (outlines)
{
scene.addSurface(new Surface(new SurfaceSphere(center1, radius), semiopaque));
scene.addSurface(new Surface(new SurfaceSphere(center2, radius), semiopaque));
scene.addSurface(new Surface(new SurfaceSphere(center3, radius), semiopaque));
scene.addSurface(new Surface(new SurfaceSphere(center4, radius2), semiopaque));
}
return(scene);
}
//Scene presenting a non-euclidean space
public static Scene MagicWindow()
{
Scene mainScene = new Scene(new Color(255, 255, 255));
Scene magicScene = new Scene(new Color(255, 255, 255));
SurfaceMaterial solidRed = new SurfaceUnlit(new Color(200, 100, 100));
SurfaceMaterial solidGreen = new SurfaceUnlit(new Color(100, 200, 100));
SurfaceMaterial solidBlue = new SurfaceUnlit(new Color(100, 100, 200));
SurfaceMaterial solidGray = new SurfaceUnlit(new Color(100, 100, 100));
SurfaceMaterial magicWindow = new SurfaceMaterialBlend(solidGray, new SurfaceTransparent(magicScene), 0.9);
//Objects are added into a different scene
magicScene.addSurface(new Surface(new SurfaceSphere(new Vector3(-20, 15, 80), 10), solidRed));
magicScene.addSurface(new Surface(new SurfaceSphere(new Vector3(20, 15, 80), 10), solidGreen));
magicScene.addSurface(new Surface(new SurfaceSphere(new Vector3(0, -15, 80), 10), solidBlue));
//Object in main scene
//We use transparent material, but propagate rays into a different scene
//Therefore, the objects can be seen only while looking through the sphere
mainScene.addSurface(new Surface(new SurfaceSphere(new Vector3(0, 2, 40), 10), magicWindow));
return(mainScene);
}
//Scene presenting different materials
public static Scene Materials()
{
Random random = new Random();
Scene scene = new Scene(new Color(255, 255, 255));
SurfaceMaterial solid = new SurfaceUnlit(new Color(128, 128, 128));
SurfaceMaterial solidRed = new SurfaceUnlit(new Color(255, 128, 128));
SurfaceMaterial solidBlue = new SurfaceUnlit(new Color(128, 128, 255));
SurfaceMaterial reflective = new SurfaceReflective(scene);
SurfaceMaterial hybrid = new SurfaceMaterialBlend(solid, reflective, 0.2); //20% reflective, 80% solid
//80% transparent, 10% reflective, 10% absorptive
SurfaceMaterial glass = new SurfaceMaterialBlend(new SurfaceTransparent(scene),
new SurfaceMaterialBlend(reflective, new SurfaceUnlit(new Color(0, 0, 0)), 0.5), 0.2);
//Red glass
SurfaceMaterial redGlass = new SurfaceMaterialBlend(new SurfaceTransparent(scene), new SurfaceUnlit(new Color(0, 0, 0)),
new Vector3(0, 1, 1)); //We specify that only red channel is affected by transparent material
scene.addSurface(new Surface(new SurfaceFloor(-10, -500, 500, -500, 500), hybrid));
scene.addSurface(new Surface(new SurfaceSphere(new Vector3(-20, 0, 50), 10), glass));
scene.addSurface(new Surface(new SurfaceSphere(new Vector3(20, 0, 50), 10), redGlass));
//We add 4 random spheres into the scene
for (int i = 0; i < 4; i++)
{
scene.addSurface(new Surface
(new SurfaceSphere
(new Vector3(random.Next(-50, 50), random.Next(5, 25), random.Next(60, 80)), random.Next(4, 14)),
new SurfaceMaterialBlend
(new SurfaceUnlit(new Color((byte)random.Next(256), (byte)random.Next(256), (byte)random.Next(256))),
reflective, 0.25)));
}
return(scene);
}
