From dfe80011c90d2ac1e03f318f4349d33013fa01b7 Mon Sep 17 00:00:00 2001
From: jbb01 <32650546+jbb01@users.noreply.github.com>
Date: Wed, 7 Aug 2024 15:50:09 +0200
Subject: [PATCH] add "final" scene

---
 .../eu/jonahbauer/raytracing/Examples.java    | 70 +++++++++++++++++++
 1 file changed, 70 insertions(+)

diff --git a/src/main/java/eu/jonahbauer/raytracing/Examples.java b/src/main/java/eu/jonahbauer/raytracing/Examples.java
index 464d5d0..5f38dcb 100644
--- a/src/main/java/eu/jonahbauer/raytracing/Examples.java
+++ b/src/main/java/eu/jonahbauer/raytracing/Examples.java
@@ -14,6 +14,7 @@ import eu.jonahbauer.raytracing.scene.hittable2d.Parallelogram;
 import eu.jonahbauer.raytracing.scene.hittable3d.ConstantMedium;
 import eu.jonahbauer.raytracing.scene.hittable3d.Sphere;
 import eu.jonahbauer.raytracing.scene.util.Hittables;
+import eu.jonahbauer.raytracing.scene.util.HittableBinaryTree;
 import org.jetbrains.annotations.NotNull;
 
 import java.util.*;
@@ -36,6 +37,7 @@ public class Examples {
         register("DIAGRAMM", Examples::getDiagramm);
         register("EARTH", Examples::getEarth);
         register("PERLIN", Examples::getPerlin);
+        register("FINAL", Examples::getFinal);
     }
 
     public static @NotNull IntFunction<Example> getByName(@NotNull String name) {
@@ -296,6 +298,74 @@ public class Examples {
         );
     }
 
+    public static @NotNull Example getFinal(int height) {
+        if (height <= 0) height = 400;
+
+        var objects = new ArrayList<Hittable>();
+        var random = new Random(1);
+
+        // boxes
+        var boxes = new ArrayList<Hittable>();
+        var ground = new LambertianMaterial(new Color(0.48, 0.83, 0.53));
+        for (int i = 0; i < 20; i++) {
+            for (int j = 0; j < 20; j++) {
+                var w = 100.0;
+                var x0 = -1000.0 + i * w;
+                var z0 = -1000.0 + j * w;
+                var y0 = 0.0;
+                var x1 = x0 + w;
+                var y1 = random.nextInt(1, 101);
+                var z1 = z0 + w;
+                boxes.add(new Box(new Vec3(x0, y0, z0), new Vec3(x1, y1, z1), ground));
+            }
+        }
+        objects.add(new HittableBinaryTree(boxes));
+
+        // light
+        objects.add(new Parallelogram(
+                new Vec3(123, 554, 147), new Vec3(300, 0, 0), new Vec3(0, 0, 265),
+                new DiffuseLight(new Color(7., 7., 7.))
+        ));
+
+        // spheres with different materials
+        objects.add(new Sphere(new Vec3(400, 400, 200), 50, new LambertianMaterial(new Color(0.7, 0.3, 0.1))));
+        objects.add(new Sphere(new Vec3(260, 150, 45), 50, new DielectricMaterial(1.5)));
+        objects.add(new Sphere(new Vec3(0, 150, 145), 50, new MetallicMaterial(new Color(0.8, 0.8, 0.9), 1.0)));
+
+        // glass sphere filled with gas
+        var boundary = new Sphere(new Vec3(360, 150, 145), 70, new DielectricMaterial(1.5));
+        objects.add(boundary);
+        objects.add(new ConstantMedium(boundary, 0.2, new IsotropicMaterial(new Color(0.2, 0.4, 0.9))));
+
+        // put the world in a glass sphere
+        objects.add(new ConstantMedium(
+                new Sphere(new Vec3(0, 0, 0), 5000, new DielectricMaterial(1.5)),
+                0.0001, new IsotropicMaterial(new Color(1., 1., 1.))
+        ));
+
+        // textures spheres
+        objects.add(new Sphere(new Vec3(400, 200, 400), 100, new LambertianMaterial(new ImageTexture("/earthmap.jpg"))));
+        objects.add(new Sphere(new Vec3(220, 280, 300), 80, new LambertianMaterial(new PerlinTexture(0.2))));
+
+        // box from spheres
+        var white = new LambertianMaterial(new Color(.73, .73, .73));
+        var spheres = new ArrayList<Hittable>();
+        for (int j = 0; j < 1000; j++) {
+            spheres.add(new Sphere(new Vec3(random.nextDouble(165), random.nextDouble(165), random.nextDouble(165)), 10, white));
+        }
+        objects.add(new HittableBinaryTree(spheres).rotateY(Math.toRadians(15)).translate(new Vec3(-100, 270, 395)));
+
+        return new Example(
+                new Scene(objects),
+                SimpleCamera.builder()
+                        .withImage(height, height)
+                        .withFieldOfView(Math.toRadians(40))
+                        .withPosition(new Vec3(478, 278, -600))
+                        .withTarget(new Vec3(278, 278, 0))
+                        .build()
+        );
+    }
+
     private static @NotNull SkyBox getSkyBox() {
         return SkyBox.gradient(new Color(0.5, 0.7, 1.0), Color.WHITE);
     }