RayTracer

This project is a raytracer. Requirements were to add an object of our own and add refraction to light transmitted through the objects. I chose to add a box object although I rather misnamed the new object as a cube. Refraction is also demonstrated with objects of both index of refraction 1 and 1.52 (glass). I included an image of the final applet outcome since they are rather slow in scanning each line of the image.

Example applets:

Crystal ball with index of refraction 1 - Notice that the sphere behind the crystal ball is visible since the light passes straight through the crystal ball without bending.
Crystal ball with index of refraction 1.52 - Notice that the sphere behind the crystal ball is seen but since the light is bent it is refracted onto a different part of the crystal ball.
A sphere and cubes - A scene demonstrating transparenct along with the new object in festive Christmas colors!
Box Man - A man made of boxes and two glass spheres for eyes!

The Source Code: Note that all .java files are actually located in the same file containing all the classes.

RayTrace.java - Code for applet and file parsing - modified to read in new cube object.
Cube.java - Code for new cube object, including intersection test.
Sphere.java - Code for sphere object, modified to account for rays originating inside the sphere.
Surface.java - Code for storing object surfaces and shading given points - modified to include refraction and internal reflections in shading. Infinite internal bouncing of rays was limited to a depth of 5.
Light.java - Code for lighting in the scene.
Ray.java - A utility class for rays.
Vector3D.java - A utility class for vectors/ points.