CS 296: Machine Problem 1

Due: March 5, 11:55pm

Bare Bones Ray Tracing

For your first programming assignment you will implement a bare bones ray-tracer with the following capabilities:

• Ray-object intersection support for:

  • Planes
  • Spheres
  • Triangles

• Orthographic projection

• Perspective projection

• Jittered sampling for the primary rays

• Simple Lambertian shading using a directional light with no position

Hand-in

You will hand in your code and 2 images:

• One orthographic rendering of a scene with spheres and a plane and a triangle

• One perspective rendering of the same scene

Hand-in will be done on Compass and detailed instructions will be forthcoming

Technical Details

• You should use C++

• You can use any image library you want (e.g. libpng) or write your own code to write a ppm file

• You can use any math library you want (e.g. glm)

• Keep in mind that if you use code you didn’t write, you must document the use of that code

Grading: Total of 40 pts

Each item is worth 5 points:

• Compiles and writes out an image!

• Orthographic projection

• Perspective projection

• Sphere intersection

• Plane intersection

• Triangle intersection

• Anti-aliasing

• Shading