Assignment5 - Ray Tracing: Lighting

Overview

Project Requirements

• Create a Scene.  This scene can be the same as the previous assignment EXCEPT: one of the spheres should be represented as a parametric equation and the other should be represented as a tessellated polygon. A recommended tessellation is an octagon and a point in both z directions. The following points define the basis for a suggested polygonal representation of a unit sphere: (1,0,0) ,(√2/2, √2/2, 0), (0,1,0), (-√ 2/2, √2/2, 0), (-1,0,0), (-√2/2, -√2/2, 0), (0, -1,0), (√2/2, -√2/2, 0), for the octagon and the points (0,0,1) and (0,0, -1) as front and back. The scene should have in addition to the two spheres, a flat polygon.
• Phong shading.  Use Phong shading on the two spheres.

• Gourad shading.  Use Gouraud shading on the polygon. Each corner of the polygon should have a unique color to properly demonstrate this type of shading.

• Save and Submit Images.  Create at least one image generated by your ray-tracer demonstrating Phong shading, as well as an image demonstrated Gourad shading

• Documentation:  Briefly explain what your program does and how to operate it. In addition, describe all data structures, major functions, and the program's flow of control. Also document any known bugs and any areas of the assignment you had problems with.
• Extra Credit  You may implement whatever additions to the ray tracer you wish. Suggestions include attenuation, shadows, motion blur, glass, metal, participating media, and texture mapping, as well as other suggestions found in the notes and book. Be sure to submit images that nicely demonstrate your improvements to the original ray tracer and relate in the documentation the commands to reproduce the images that you create as well as a full description of what you did and how.

Resources