ABSTRACT
This chapter covers algorithms that generate hard shadows. The discussions around each categorized approach include details of individual papers and details on how tomake each approach feasible in terms of image quality and performance. The main categorized approaches include
● Fake shadows on planar receivers (Section 2.2) [7, 355]. ● Shadow depth maps (Section 2.3) [7, 354, 507, 158]. ● Shadow volumes (Section 2.4) [7, 355, 158]. ● Ray tracing (Section 2.5) [613]. The chapter concludes with other miscellaneous hard shadow algorithms (Sec-
tion 2.6), followed by trends and analysis of the criteria for application, success, and deployment of each categorized approach (Section 2.7).
