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59
Why is Hierarchical Radiosity more efficient than simple Shooting / Gathering?
Adaptive Refinement
Only refines patches whose form factors are large, thus generates fewer patches than uniform refinement.
Generate fewer links
For each element, there is only a constant number of other elements for which the form factor is large. All other elements are connected on different hierarchy levels. Thus, the number of links generated by Hierarchical Radiosity is linear in the number of elements while for classical Radiosity it is quadratic.
Only refines patches whose form factors are large, thus generates fewer patches than uniform refinement.
Generate fewer links
For each element, there is only a constant number of other elements for which the form factor is large. All other elements are connected on different hierarchy levels. Thus, the number of links generated by Hierarchical Radiosity is linear in the number of elements while for classical Radiosity it is quadratic.
Flashcard info:
Author: janisborn
Main topic: Informatik
Topic: Computergrafik
School / Univ.: RWTH Aachen
City: Aachen
Published: 18.05.2022