04/11/2002
15-462 Graphics I
3
Radiosity Equation
•For each patch i:
•
•
•Variables
–Bi = radiosity (unknown)
–Ei = emittance of light sources (given)
– ri = reflectance (given)
–Fi j = form factor from i to j (computed)
–   fraction of light emitted from patch i arriving at patch j
–Ai = area of patch i (computed)