Shadow Algorithms Data Miner

CHAPTER 4

Soft Shadows

4.1 What’s C overed in This Chapter

In addition to the visually pleasing aspects of so shadows, studies by Rademacher

et al. [472] indicate that the presence of so shadows contribute greatly to the real-

ism of an image, which makes the generation of so shadows that much more im-

portant. In this chapter, we only discuss so shadows from extended light sources,

such as linear lights, polygonal, spherical, and general area lights, and volumetric

lights. Several excellent surveys [227, 7, 158] exist on this topic. Other sources of

so shadows are discussed in Chapter 5; they include motion blur (Section 5.7),

ambient occlusio