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72
What simplifications are made for Radiosity? Derive the Radiosity Equation!
Simplification 1: Assume only diffuse surfaces.
Instead of BRDF
, use reflectance 
.
Instead of radiances
, use radiosity 
.
Resulting Radiosity Equation:
Simplification 2: Spatial Discretization
Assume scene consisting of patches
with constant radiosity
Plug the Radiosity Equation into this:
We know that
is constant over 
(with value 
), thus we can pull it out of the integral:
with the Form Factors
Instead of BRDF
, use reflectance .Instead of radiances
, use radiosity .Resulting Radiosity Equation:
Simplification 2: Spatial Discretization
Assume scene consisting of patches
with constant radiosityPlug the Radiosity Equation into this:
We know that
is constant over (with value ), thus we can pull it out of the integral:with the Form Factors
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Flashcard info:
Author: janisborn
Main topic: Informatik
Topic: Computergrafik
School / Univ.: RWTH Aachen
City: Aachen
Published: 18.05.2022