jonah/raytracing
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add cornell box

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This commit is contained in:
jbb01 2024-08-05 15:13:17 +02:00
parent 3be855cffd
commit ebbf711403
2 changed files with 62 additions and 2 deletions
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29
src/main/java/eu/jonahbauer/raytracing/Main.java
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@ -18,12 +18,11 @@ import org.jetbrains.annotations.NotNull;
import java.io.IOException;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
public class Main {
public static void main(String[] args) throws IOException {
var example = getLight();
var example = getCornellBox();
var scene = example.scene();
var camera = example.camera();
@ -125,6 +124,32 @@ public class Main {
);
}
private static @NotNull Example getCornellBox() {
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(130, 0, 65), new Vec3(295, 165, 230), white),
Hittables.box(new Vec3(265, 0, 295), new Vec3(430, 330, 460), white)
),
SimpleCamera.builder()
.withImage(600, 600)
.withFieldOfView(Math.toRadians(40))
.withPosition(new Vec3(278, 278, -800))
.withTarget(new Vec3(278, 278, 0))
.build()
);
}
private static @NotNull Scene getSimpleScene() {
return new Scene(
getSkyBox(),

35
src/main/java/eu/jonahbauer/raytracing/scene/util/Hittables.java Normal file
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@ -0,0 +1,35 @@
package eu.jonahbauer.raytracing.scene.util;
import eu.jonahbauer.raytracing.math.Vec3;
import eu.jonahbauer.raytracing.render.material.Material;
import eu.jonahbauer.raytracing.scene.Hittable;
import eu.jonahbauer.raytracing.scene.hittable2d.Parallelogram;
import org.jetbrains.annotations.NotNull;
import java.util.ArrayList;
public final class Hittables {
private Hittables() {
throw new UnsupportedOperationException();
}
public static @NotNull Hittable box(@NotNull Vec3 a, @NotNull Vec3 b, @NotNull Material material) {
var sides = new ArrayList<Hittable>();
var min = Vec3.min(a, b);
var max = Vec3.max(a, b);
var dx = new Vec3(max.x() - min.x(), 0, 0);
var dy = new Vec3(0, max.y() - min.y(), 0);
var dz = new Vec3(0, 0, max.z() - min.z());
sides.add(new Parallelogram(new Vec3(min.x(), min.y(), max.z()), dx, dy, material)); // front
sides.add(new Parallelogram(new Vec3(max.x(), min.y(), max.z()), dz.neg(), dy, material)); // right
sides.add(new Parallelogram(new Vec3(max.x(), min.y(), min.z()), dx.neg(), dy, material)); // back
sides.add(new Parallelogram(new Vec3(min.x(), min.y(), min.z()), dz, dy, material)); // left
sides.add(new Parallelogram(new Vec3(min.x(), max.y(), max.z()), dx, dz.neg(), material)); // top
sides.add(new Parallelogram(new Vec3(min.x(), min.y(), min.z()), dx, dz, material)); // bottom
return new HittableList(sides);
}
}