• Extend your raytracer to generate a nice output
• Get the OpenGL assignment framework code compiling
• Not graded, nicest results will be shown in class
• Bonus points possible

• Create an interesting scene
  • Create your own 3D models/download free ones online
  • Insert them into a scene file (convert to OFF)
  • Recommended 3D suite: Blender
• If you have something pretty, maybe allow us to add it to scenes/ next year?

• Render glass objects
  • Recursively trace reflected AND refracted rays
  • Use Snell’s law to compute refraction angles
  • Use the Fresnel equations to mix reflected/refracted colors.

Author: JrPol Author: Mathness

• Implement ray-torus intersections
  • Good practice for deriving ray-object intersections
  • Solve a quartic equation!

• Create a movie
  • Animate something by generating a different scene for each frame
  • Move camera, lights, objects…
  • Example in scenes/movie:

• Parallelisation: Distribute work across cores
  • Better OpenMP scheduling?
• Low-level optimization: Do the same work faster
  • SIMD? Memory layout, cache optimization?
• Acceleration structures: Do less work
  • e.g., AABB hierarchy, Octree, BSP

• Display pixels on screen as soon as their color is available

https://raytracing.github.io/

• Download assignment_04.zip from ILIAS and build it
• All necessary libraries except OpenGL should be included
• Please contact us early if you run into issues!
• Try to already get familiar with the code :-)

Expected output In a few weeks…