Rule Changes:

• Project is due midnight Monday (11/20/00)
• You are required only to implement an ambient and a directional light source
• Parser for input files:
  • Comments - # the rest of the line after a pound sign is ignored
  • Eye Position - eye x y z
  • Look-at Position - look x y z
  • World-space up vector - up x y z
  • Horizontal field-of-view - fov angle_in_degrees
  • Ambient Light Source - la r g b # color intensities range from 0 to 1
  • Directional Light Source - ld r g b x y z # x y z is a vector from the light to the surface
  • Polygon Vertex - v x y z
  • Polygon Facet - f i₁ i₂ i₃ i₄ ... i_n # index to vertex 0-based
  • Surface Parameters - surf r g b k_a k_d k_s n_shiney