CS 445: Topics for Sept 16/18, 2014

• Labs:

  • Complete: Lab 1: Building a Ray Tracer, Part 2
  • Begin: Lab 1: Building a Ray Tracer, Part 3

• Equations for the Intersection of Rays with Shapes (or just google others):

  • Ray intersection with cone, cylinder equations
  • Ray - Quadric Intersection
  • Ray tracing primitives: cone, cylinder, torus, etc
  • Torus-Ray Hit Method (pdf)
  • Reminder: Finding surface normals - use the gradient

• Ray traced shadows (see Ray Tracing Notes (pdf))

• Using recursion to implement reflections (see Ray Tracing Notes (pdf))

• Anti-aliasing:

  • In Hypergraph
  • In Povray (may be out of date)

• Optimization Techniques

  • Bounding Boxes, Bounding Volume Hierarchies (BVH)
  • Ray Tracing on the GPU

• Textures

  • Look at Ray Tracing Notes
  • 2D Procedural Textures
  • UV Coordinates for odd ball shapes, e.g. Spherical Mapping
  • 3D Textures
  • Perlin Noise, code

---