© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2023
B. E. HollisterEssential Guide to RenderMan® Shading Plugin Developmenthttps://doi.org/10.1007/978-1-4842-9392-8_3

3. Radiometry and Bidirectional Scattering Functions

Brad E. Hollister1  
(1)
Carson, CA, USA
 

In order to write Bxdf plugins, it is necessary to understand the fundamentals of the “rendering equation.” This chapter describes basic theory for writing Bxdf plugins. This chapter is concerned with basic radiometry, both the integral calculus used to describe its equations and its physical intrinsic quantities.

The information in this chapter is presented informally, but a serious attempt is required and will give a better contextual understanding of ...

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