02/04/2003
15-462 Graphics I
17
Basic Calculation
•Calculate
each primary color separately
•Start
with global ambient light
•Add
reflections from each light source
•Clamp
to [0, 1]
•Reflection
decomposed into
–Ambient
reflection
–Diffuse
reflection
–Specular
reflection
•Based
on ambient, diffuse, and specular lighting and material properties