Java-RTX

Basic java raytracer based on the Raytracing In One Weekend series and some other code I stole off the internet.

I have yet to make a proper sceneloader so deal with this hardcoded shit for now, hopefully I will make a proper sceneloader and API for this project at some point.

API

Define a new scene like this:

HittableList world = new HittableList();

---

Define materials like this

Material green = new Lambertian(new Vector3(0.12, 0.45, 0.15));
Material metal = new Metal(new Vector3(0.7), 0.01);
Material light = new DiffuseLight(new Vector3(15));

For all material types look in Material.java

Lamberitans can be assigned textures, like this

Material checker = new Lambertian(new Checker(0.32, new Vector3(0.2, 0.3, 0.1), new Vector3(0.9)));

---

Add objects (anything that extends Hittable) using world.add like this

world.add(new Quad(new Vector3(555,0,0), new Vector3(0,555,0), new Vector3(0,0,555), green)); // Example of adding a green quad
world.add(new Sphere(new Vector3(0, 1, 0), 1.0, material1));

Hittable box1 = Quad.box(new Vector3(0,0,0), new Vector3(165,330,165), metal);
box1 = new RotateY(box1, 15);
box1 = new Translate(box1, new Vector3(265,0,295));
world.add(box1);

Note that boxes are the only things that can be translated and rotated

You can also add smoke/volumes like this

world.add(new ConstantMedium(box1, 0.01, new Vector3(0,0,0)));
world.add(new ConstantMedium(box2, 0.01, new Vector3(1,1,1)));

Though they do look kinda wierd...

Link to the original tutorials:

https://raytracing.github.io/books/RayTracingInOneWeekend.html

https://raytracing.github.io/books/RayTracingTheNextWeek.html