
CHAPTER 5
Other Treatments of
Shadows
5.1 What’s C overed in This Chapter
is chapter covers other treatments of shadows. e topics include
● Bump-mapped surfaces taking self-shadowing into proper account (Sec-
tion 5.2) [573].
● Treatments of masking and self-shadowing within advanced reection mod-
els (Section 5.3).
● “Quasi” shadows from semitransparent and translucent surfaces (Sec-
tion 5.4). It is quasi because these are technically not creating shadows. ey
use shadow algorithms not to compute a region not occluded from light, but
a region that represents the transmissivity of light through the semitranspar-
ent or translucent surfaces.
● Highly