add command line argument parser
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360fb2c990
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e4e241a314
@ -5,11 +5,14 @@ import eu.jonahbauer.raytracing.render.Color;
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import eu.jonahbauer.raytracing.render.ImageFormat;
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import eu.jonahbauer.raytracing.render.camera.Camera;
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import eu.jonahbauer.raytracing.render.camera.SimpleCamera;
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import eu.jonahbauer.raytracing.render.canvas.Canvas;
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import eu.jonahbauer.raytracing.render.canvas.Image;
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import eu.jonahbauer.raytracing.render.canvas.LiveCanvas;
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import eu.jonahbauer.raytracing.render.material.*;
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import eu.jonahbauer.raytracing.render.renderer.SimpleRenderer;
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import eu.jonahbauer.raytracing.scene.*;
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import eu.jonahbauer.raytracing.scene.Hittable;
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import eu.jonahbauer.raytracing.scene.Scene;
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import eu.jonahbauer.raytracing.scene.SkyBox;
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import eu.jonahbauer.raytracing.scene.hittable2d.Parallelogram;
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import eu.jonahbauer.raytracing.scene.hittable3d.ConstantMedium;
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import eu.jonahbauer.raytracing.scene.hittable3d.Sphere;
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@ -17,185 +20,287 @@ import eu.jonahbauer.raytracing.scene.util.Hittables;
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import org.jetbrains.annotations.NotNull;
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import java.io.IOException;
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import java.nio.file.InvalidPathException;
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import java.nio.file.Path;
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import java.util.ArrayList;
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import java.util.Random;
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import java.util.function.IntFunction;
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public class Main {
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public static void main(String[] args) throws IOException {
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var example = getCornellBoxSmoke();
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var config = Config.parse(args);
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var example = config.example;
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var scene = example.scene();
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var camera = example.camera();
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var renderer = SimpleRenderer.builder()
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.withSamplesPerPixel(1000)
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.withMaxDepth(50)
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.withIterative(true)
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.withSamplesPerPixel(config.samples)
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.withMaxDepth(config.depth)
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.withIterative(config.iterative)
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.build();
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var image = new LiveCanvas(new Image(camera.getWidth(), camera.getHeight()));
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image.preview();
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long time = System.nanoTime();
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renderer.render(camera, scene, image);
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System.out.printf("rendering finished after %dms", (System.nanoTime() - time) / 1_000_000);
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ImageFormat.PNG.write(image, Path.of("scene-" + System.currentTimeMillis() + ".png"));
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}
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private static @NotNull Example getSpheres() {
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var rng = new Random(1);
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var objects = new ArrayList<Hittable>();
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objects.add(new Sphere(new Vec3(0, -1000, 0), 1000, new LambertianMaterial(new Color(0.5, 0.5, 0.5))));
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for (int a = -11; a < 11; a++) {
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for (int b = -11; b < 11; b++) {
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var center = new Vec3(a + 0.9 * rng.nextDouble(), 0.2, b + 0.9 * rng.nextDouble());
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if (Vec3.distance(center, new Vec3(4, 0.2, 0)) <= 0.9) continue;
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Material material;
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var rnd = rng.nextDouble();
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if (rnd < 0.8) {
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// diffuse
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var albedo = Color.multiply(Color.random(rng), Color.random(rng));
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material = new LambertianMaterial(albedo);
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} else if (rnd < 0.95) {
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// metal
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var albedo = Color.random(rng, 0.5, 1.0);
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var fuzz = rng.nextDouble() * 0.5;
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material = new MetallicMaterial(albedo, fuzz);
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} else {
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// glass
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material = new DielectricMaterial(1.5);
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}
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objects.add(new Sphere(center, 0.2, material));
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}
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Canvas canvas;
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if (config.preview) {
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var image = new LiveCanvas(new Image(camera.getWidth(), camera.getHeight()));
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image.preview();
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canvas = image;
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} else {
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canvas = new Image(camera.getWidth(), camera.getHeight());
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}
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objects.add(new Sphere(new Vec3(0, 1, 0), 1.0, new DielectricMaterial(1.5)));
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objects.add(new Sphere(new Vec3(-4, 1, 0), 1.0, new LambertianMaterial(new Color(0.4, 0.2, 0.1))));
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objects.add(new Sphere(new Vec3(4, 1, 0), 1.0, new MetallicMaterial(new Color(0.7, 0.6, 0.5))));
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long time = System.nanoTime();
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renderer.render(camera, scene, canvas);
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System.out.printf("rendering finished after %dms", (System.nanoTime() - time) / 1_000_000);
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var camera = SimpleCamera.builder()
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.withImage(1200, 675)
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.withPosition(new Vec3(13, 2, 3))
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.withTarget(new Vec3(0, 0, 0))
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.withFieldOfView(Math.toRadians(20))
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.withFocusDistance(10.0)
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.withBlurAngle(Math.toRadians(0.6))
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.build();
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return new Example(new Scene(getSkyBox(), objects), camera);
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ImageFormat.PNG.write(canvas, config.path);
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}
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private static @NotNull Example getSquares() {
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return new Example(
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new Scene(
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getSkyBox(),
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new Parallelogram(new Vec3(-3, -2, 5), new Vec3(0, 0, -4), new Vec3(0, 4, 0), new LambertianMaterial(new Color(1.0, 0.2, 0.2))),
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new Parallelogram(new Vec3(-2, -2, 0), new Vec3(4, 0, 0), new Vec3(0, 4, 0), new LambertianMaterial(new Color(0.2, 1.0, 0.2))),
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new Parallelogram(new Vec3(3, -2, 1), new Vec3(0, 0, 4), new Vec3(0, 4, 0), new LambertianMaterial(new Color(0.2, 0.2, 1.0))),
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new Parallelogram(new Vec3(-2, 3, 1), new Vec3(4, 0, 0), new Vec3(0, 0, 4), new LambertianMaterial(new Color(1.0, 0.5, 0.0))),
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new Parallelogram(new Vec3(-2, -3, 5), new Vec3(4, 0, 0), new Vec3(0, 0, -4), new LambertianMaterial(new Color(0.2, 0.8, 0.8)))
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),
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SimpleCamera.builder()
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.withImage(400, 400)
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.withFieldOfView(Math.toRadians(80))
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.withPosition(new Vec3(0, 0, 9))
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.withTarget(new Vec3(0, 0, 0))
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.build()
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);
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private record Config(@NotNull Example example, @NotNull Path path, boolean preview, boolean iterative, int samples, int depth) {
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public static @NotNull Config parse(@NotNull String @NotNull[] args) {
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IntFunction<Example> example = null;
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Path path = null;
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boolean preview = true;
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boolean iterative = false;
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int samples = 1000;
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int depth = 50;
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int height = -1;
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for (int i = 0; i < args.length; i++) {
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switch (args[i]) {
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case "--output" -> {
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if (i + 1 == args.length) throw fail("missing value for parameter --output");
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try {
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path = Path.of(args[++i]);
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} catch (InvalidPathException ex) {
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throw fail("value " + args[i] + " is not a valid path");
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}
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}
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case "--preview" -> preview = true;
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case "--no-preview" -> preview = false;
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case "--iterative" -> iterative = true;
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case "--no-iterative" -> iterative = false;
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case "--samples" -> {
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if (i + 1 == args.length) throw fail("missing value for parameter --samples");
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try {
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samples = Integer.parseInt(args[++i]);
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if (samples <= 0) throw fail("samples must be positive");
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} catch (NumberFormatException ex) {
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throw fail("value " + args[i] + " is not a valid integer");
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}
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}
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case "--depth" -> {
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if (i + 1 == args.length) throw fail("missing value for parameter --depth");
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try {
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depth = Integer.parseInt(args[++i]);
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if (depth <= 0) throw fail("depth must be positive");
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} catch (NumberFormatException ex) {
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throw fail("value " + args[i] + " is not a valid integer");
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}
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}
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case "--height" -> {
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if (i + 1 == args.length) throw fail("missing value for parameter --height");
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try {
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height = Integer.parseInt(args[++i]);
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if (height <= 0) throw fail("height must be positive");
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} catch (NumberFormatException ex) {
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throw fail("value " + args[i] + " is not a valid integer");
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}
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}
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case String str when !str.startsWith("-") -> example = switch (str) {
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case "SIMPLE" -> Examples::getSimpleScene;
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case "SPHERES" -> Examples::getSpheres;
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case "SQUARES" -> Examples::getSquares;
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case "LIGHT" -> Examples::getLight;
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case "CORNELL" -> Examples::getCornellBox;
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case "CORNELL_SMOKE" -> Examples::getCornellBoxSmoke;
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default -> throw fail("unknown example " + str + ", expected one of SIMPLE, SPHERES, SQUARES, LIGHT, CORNELL or CORNELL_SMOKE");
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};
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default -> throw fail("unknown option " + args[i]);
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}
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}
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if (example == null) example = Examples::getCornellBoxSmoke;
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if (path == null) path = Path.of("scene-" + System.currentTimeMillis() + ".png");
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return new Config(example.apply(height), path, preview, iterative, samples, depth);
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}
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private static @NotNull RuntimeException fail(@NotNull String message) {
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System.err.println(message);
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System.exit(1);
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return new RuntimeException();
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}
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}
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private static @NotNull Example getLight() {
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return new Example(
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new Scene(
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new Sphere(new Vec3(0, -1000, 0), 1000, new LambertianMaterial(new Color(0.2, 0.2, 0.2))),
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new Sphere(new Vec3(0, 2, 0), 2, new LambertianMaterial(new Color(0.2, 0.2, 0.2))),
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new Parallelogram(new Vec3(3, 1, -2), new Vec3(2, 0, 0), new Vec3(0, 2, 0), new DiffuseLight(new Color(4.0, 4.0, 4.0))),
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new Sphere(new Vec3(0, 7, 0), 2, new DiffuseLight(new Color(4.0, 4.0, 4.0)))
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),
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SimpleCamera.builder()
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.withImage(400, 225)
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.withFieldOfView(Math.toRadians(20))
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.withPosition(new Vec3(26, 3, 6))
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.withTarget(new Vec3(0, 2, 0))
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.build()
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);
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}
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private static class Examples {
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public static @NotNull Example getSimpleScene(int height) {
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if (height <= 0) height = 675;
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return new Example(
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new Scene(
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getSkyBox(),
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new Sphere(new Vec3(0, -100.5, -1.0), 100.0, new LambertianMaterial(new Color(0.8, 0.8, 0.0))),
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new Sphere(new Vec3(0, 0, -1.2), 0.5, new LambertianMaterial(new Color(0.1, 0.2, 0.5))),
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new Sphere(new Vec3(-1.0, 0, -1.2), 0.5, new DielectricMaterial(1.5)),
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new Sphere(new Vec3(-1.0, 0, -1.2), 0.4, new DielectricMaterial(1 / 1.5)),
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new Sphere(new Vec3(1.0, 0, -1.2), 0.5, new MetallicMaterial(new Color(0.8, 0.6, 0.2), 0.0))
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),
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SimpleCamera.builder()
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.withImage(height * 16 / 9, height)
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.build()
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);
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}
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private static @NotNull Example getCornellBox() {
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var red = new LambertianMaterial(new Color(.65, .05, .05));
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var white = new LambertianMaterial(new Color(.73, .73, .73));
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var green = new LambertianMaterial(new Color(.12, .45, .15));
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var light = new DiffuseLight(new Color(15.0, 15.0, 15.0));
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public static @NotNull Example getSpheres(int height) {
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if (height <= 0) height = 675;
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return new Example(
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new Scene(
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new Parallelogram(new Vec3(555, 0, 0), new Vec3(0, 555, 0), new Vec3(0, 0, 555), green),
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new Parallelogram(new Vec3(0, 0, 0), new Vec3(0, 555, 0), new Vec3(0, 0, 555), red),
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new Parallelogram(new Vec3(343, 554, 332), new Vec3(-130, 0, 0), new Vec3(0, 0, -105), light),
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new Parallelogram(new Vec3(0, 0, 0), new Vec3(555, 0 ,0), new Vec3(0, 0, 555), white),
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new Parallelogram(new Vec3(555, 555, 555), new Vec3(-555, 0 ,0), new Vec3(0, 0, -555), white),
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new Parallelogram(new Vec3(0, 0, 555), new Vec3(555, 0 ,0), new Vec3(0, 555, 0), white),
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Hittables.box(new Vec3(0, 0, 0), new Vec3(165, 330, 165), white).rotateY(Math.toRadians(15)).translate(new Vec3(265, 0, 295)),
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Hittables.box(new Vec3(0, 0, 0), new Vec3(165, 165, 165), white).rotateY(Math.toRadians(-18)).translate(new Vec3(130, 0, 65))
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),
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SimpleCamera.builder()
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.withImage(600, 600)
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.withFieldOfView(Math.toRadians(40))
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.withPosition(new Vec3(278, 278, -800))
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.withTarget(new Vec3(278, 278, 0))
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.build()
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);
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}
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var rng = new Random(1);
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var objects = new ArrayList<Hittable>();
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objects.add(new Sphere(new Vec3(0, -1000, 0), 1000, new LambertianMaterial(new Color(0.5, 0.5, 0.5))));
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private static @NotNull Example getCornellBoxSmoke() {
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var red = new LambertianMaterial(new Color(.65, .05, .05));
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var white = new LambertianMaterial(new Color(.73, .73, .73));
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var green = new LambertianMaterial(new Color(.12, .45, .15));
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var light = new DiffuseLight(new Color(7.0, 7.0, 7.0));
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for (int a = -11; a < 11; a++) {
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for (int b = -11; b < 11; b++) {
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var center = new Vec3(a + 0.9 * rng.nextDouble(), 0.2, b + 0.9 * rng.nextDouble());
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if (Vec3.distance(center, new Vec3(4, 0.2, 0)) <= 0.9) continue;
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return new Example(
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new Scene(
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new Parallelogram(new Vec3(555, 0, 0), new Vec3(0, 555, 0), new Vec3(0, 0, 555), green),
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new Parallelogram(new Vec3(0, 0, 0), new Vec3(0, 555, 0), new Vec3(0, 0, 555), red),
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new Parallelogram(new Vec3(113, 554, 127), new Vec3(330, 0, 0), new Vec3(0, 0, 305), light),
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new Parallelogram(new Vec3(0, 0, 0), new Vec3(555, 0 ,0), new Vec3(0, 0, 555), white),
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new Parallelogram(new Vec3(555, 555, 555), new Vec3(-555, 0 ,0), new Vec3(0, 0, -555), white),
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new Parallelogram(new Vec3(0, 0, 555), new Vec3(555, 0 ,0), new Vec3(0, 555, 0), white),
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new ConstantMedium(
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Hittables.box(new Vec3(0, 0, 0), new Vec3(165, 330, 165), white).rotateY(Math.toRadians(15)).translate(new Vec3(265, 0, 295)),
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0.01, new IsotropicMaterial(Color.BLACK)
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),
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new ConstantMedium(
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Hittables.box(new Vec3(0, 0, 0), new Vec3(165, 165, 165), white).rotateY(Math.toRadians(-18)).translate(new Vec3(130, 0, 65)),
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0.01, new IsotropicMaterial(Color.WHITE)
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)
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),
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SimpleCamera.builder()
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.withImage(600, 600)
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.withFieldOfView(Math.toRadians(40))
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.withPosition(new Vec3(278, 278, -800))
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.withTarget(new Vec3(278, 278, 0))
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.build()
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);
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}
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Material material;
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var rnd = rng.nextDouble();
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if (rnd < 0.8) {
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// diffuse
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var albedo = Color.multiply(Color.random(rng), Color.random(rng));
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material = new LambertianMaterial(albedo);
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} else if (rnd < 0.95) {
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// metal
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var albedo = Color.random(rng, 0.5, 1.0);
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var fuzz = rng.nextDouble() * 0.5;
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material = new MetallicMaterial(albedo, fuzz);
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} else {
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// glass
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material = new DielectricMaterial(1.5);
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}
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private static @NotNull Scene getSimpleScene() {
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return new Scene(
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getSkyBox(),
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new Sphere(new Vec3(0, -100.5, -1.0), 100.0, new LambertianMaterial(new Color(0.8, 0.8, 0.0))),
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new Sphere(new Vec3(0, 0, -1.2), 0.5, new LambertianMaterial(new Color(0.1, 0.2, 0.5))),
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new Sphere(new Vec3(-1.0, 0, -1.2), 0.5, new DielectricMaterial(1.5)),
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new Sphere(new Vec3(-1.0, 0, -1.2), 0.4, new DielectricMaterial(1 / 1.5)),
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new Sphere(new Vec3(1.0, 0, -1.2), 0.5, new MetallicMaterial(new Color(0.8, 0.6, 0.2), 0.0))
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);
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}
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objects.add(new Sphere(center, 0.2, material));
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}
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}
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private static @NotNull SkyBox getSkyBox() {
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return SkyBox.gradient(new Color(0.5, 0.7, 1.0), Color.WHITE);
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objects.add(new Sphere(new Vec3(0, 1, 0), 1.0, new DielectricMaterial(1.5)));
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objects.add(new Sphere(new Vec3(-4, 1, 0), 1.0, new LambertianMaterial(new Color(0.4, 0.2, 0.1))));
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objects.add(new Sphere(new Vec3(4, 1, 0), 1.0, new MetallicMaterial(new Color(0.7, 0.6, 0.5))));
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var camera = SimpleCamera.builder()
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.withImage(height * 16 / 9, height)
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.withPosition(new Vec3(13, 2, 3))
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.withTarget(new Vec3(0, 0, 0))
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.withFieldOfView(Math.toRadians(20))
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.withFocusDistance(10.0)
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.withBlurAngle(Math.toRadians(0.6))
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.build();
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return new Example(new Scene(getSkyBox(), objects), camera);
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}
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public static @NotNull Example getSquares(int height) {
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if (height <= 0) height = 600;
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return new Example(
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new Scene(
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getSkyBox(),
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new Parallelogram(new Vec3(-3, -2, 5), new Vec3(0, 0, -4), new Vec3(0, 4, 0), new LambertianMaterial(new Color(1.0, 0.2, 0.2))),
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new Parallelogram(new Vec3(-2, -2, 0), new Vec3(4, 0, 0), new Vec3(0, 4, 0), new LambertianMaterial(new Color(0.2, 1.0, 0.2))),
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new Parallelogram(new Vec3(3, -2, 1), new Vec3(0, 0, 4), new Vec3(0, 4, 0), new LambertianMaterial(new Color(0.2, 0.2, 1.0))),
|
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new Parallelogram(new Vec3(-2, 3, 1), new Vec3(4, 0, 0), new Vec3(0, 0, 4), new LambertianMaterial(new Color(1.0, 0.5, 0.0))),
|
||||
new Parallelogram(new Vec3(-2, -3, 5), new Vec3(4, 0, 0), new Vec3(0, 0, -4), new LambertianMaterial(new Color(0.2, 0.8, 0.8)))
|
||||
),
|
||||
SimpleCamera.builder()
|
||||
.withImage(height, height)
|
||||
.withFieldOfView(Math.toRadians(80))
|
||||
.withPosition(new Vec3(0, 0, 9))
|
||||
.withTarget(new Vec3(0, 0, 0))
|
||||
.build()
|
||||
);
|
||||
}
|
||||
|
||||
public static @NotNull Example getLight(int height) {
|
||||
if (height <= 0) height = 225;
|
||||
return new Example(
|
||||
new Scene(
|
||||
new Sphere(new Vec3(0, -1000, 0), 1000, new LambertianMaterial(new Color(0.2, 0.2, 0.2))),
|
||||
new Sphere(new Vec3(0, 2, 0), 2, new LambertianMaterial(new Color(0.2, 0.2, 0.2))),
|
||||
new Parallelogram(new Vec3(3, 1, -2), new Vec3(2, 0, 0), new Vec3(0, 2, 0), new DiffuseLight(new Color(4.0, 4.0, 4.0))),
|
||||
new Sphere(new Vec3(0, 7, 0), 2, new DiffuseLight(new Color(4.0, 4.0, 4.0)))
|
||||
),
|
||||
SimpleCamera.builder()
|
||||
.withImage(height * 16 / 9, height)
|
||||
.withFieldOfView(Math.toRadians(20))
|
||||
.withPosition(new Vec3(26, 3, 6))
|
||||
.withTarget(new Vec3(0, 2, 0))
|
||||
.build()
|
||||
);
|
||||
}
|
||||
|
||||
public static @NotNull Example getCornellBox(int height) {
|
||||
if (height <= 0) height = 600;
|
||||
|
||||
var red = new LambertianMaterial(new Color(.65, .05, .05));
|
||||
var white = new LambertianMaterial(new Color(.73, .73, .73));
|
||||
var green = new LambertianMaterial(new Color(.12, .45, .15));
|
||||
var light = new DiffuseLight(new Color(15.0, 15.0, 15.0));
|
||||
|
||||
return new Example(
|
||||
new Scene(
|
||||
new Parallelogram(new Vec3(555, 0, 0), new Vec3(0, 555, 0), new Vec3(0, 0, 555), green),
|
||||
new Parallelogram(new Vec3(0, 0, 0), new Vec3(0, 555, 0), new Vec3(0, 0, 555), red),
|
||||
new Parallelogram(new Vec3(343, 554, 332), new Vec3(-130, 0, 0), new Vec3(0, 0, -105), light),
|
||||
new Parallelogram(new Vec3(0, 0, 0), new Vec3(555, 0 ,0), new Vec3(0, 0, 555), white),
|
||||
new Parallelogram(new Vec3(555, 555, 555), new Vec3(-555, 0 ,0), new Vec3(0, 0, -555), white),
|
||||
new Parallelogram(new Vec3(0, 0, 555), new Vec3(555, 0 ,0), new Vec3(0, 555, 0), white),
|
||||
Hittables.box(new Vec3(0, 0, 0), new Vec3(165, 330, 165), white).rotateY(Math.toRadians(15)).translate(new Vec3(265, 0, 295)),
|
||||
Hittables.box(new Vec3(0, 0, 0), new Vec3(165, 165, 165), white).rotateY(Math.toRadians(-18)).translate(new Vec3(130, 0, 65))
|
||||
),
|
||||
SimpleCamera.builder()
|
||||
.withImage(height, height)
|
||||
.withFieldOfView(Math.toRadians(40))
|
||||
.withPosition(new Vec3(278, 278, -800))
|
||||
.withTarget(new Vec3(278, 278, 0))
|
||||
.build()
|
||||
);
|
||||
}
|
||||
|
||||
public static @NotNull Example getCornellBoxSmoke(int height) {
|
||||
if (height <= 0) height = 600;
|
||||
var red = new LambertianMaterial(new Color(.65, .05, .05));
|
||||
var white = new LambertianMaterial(new Color(.73, .73, .73));
|
||||
var green = new LambertianMaterial(new Color(.12, .45, .15));
|
||||
var light = new DiffuseLight(new Color(7.0, 7.0, 7.0));
|
||||
|
||||
return new Example(
|
||||
new Scene(
|
||||
new Parallelogram(new Vec3(555, 0, 0), new Vec3(0, 555, 0), new Vec3(0, 0, 555), green),
|
||||
new Parallelogram(new Vec3(0, 0, 0), new Vec3(0, 555, 0), new Vec3(0, 0, 555), red),
|
||||
new Parallelogram(new Vec3(113, 554, 127), new Vec3(330, 0, 0), new Vec3(0, 0, 305), light),
|
||||
new Parallelogram(new Vec3(0, 0, 0), new Vec3(555, 0 ,0), new Vec3(0, 0, 555), white),
|
||||
new Parallelogram(new Vec3(555, 555, 555), new Vec3(-555, 0 ,0), new Vec3(0, 0, -555), white),
|
||||
new Parallelogram(new Vec3(0, 0, 555), new Vec3(555, 0 ,0), new Vec3(0, 555, 0), white),
|
||||
new ConstantMedium(
|
||||
Hittables.box(new Vec3(0, 0, 0), new Vec3(165, 330, 165), white).rotateY(Math.toRadians(15)).translate(new Vec3(265, 0, 295)),
|
||||
0.01, new IsotropicMaterial(Color.BLACK)
|
||||
),
|
||||
new ConstantMedium(
|
||||
Hittables.box(new Vec3(0, 0, 0), new Vec3(165, 165, 165), white).rotateY(Math.toRadians(-18)).translate(new Vec3(130, 0, 65)),
|
||||
0.01, new IsotropicMaterial(Color.WHITE)
|
||||
)
|
||||
),
|
||||
SimpleCamera.builder()
|
||||
.withImage(height, height)
|
||||
.withFieldOfView(Math.toRadians(40))
|
||||
.withPosition(new Vec3(278, 278, -800))
|
||||
.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);
|
||||
}
|
||||
}
|
||||
|
||||
private record Example(@NotNull Scene scene, @NotNull Camera camera) {}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user