August 2018
Intermediate to advanced
1198 pages
41h 14m
English
book
Real-Time Rendering, Fourth Edition, 4th Edition
by Tomas Akenine-Möller, Eric Haines, Naty Hoffman
Content preview from Real-Time Rendering, Fourth Edition, 4th Edition
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Chapter 8 Light and Color
DOI: 10.1201/b22086-8
“Unweave a rainbow, as it erewhile madeThe tender-person’d Lamia melt into a shade.”
—John Keats
Many of the RGB color values discussed in previous chapters represent intensities and shades of light. In this chapter we will learn about the various physical light quantities measured by these values, laying the groundwork for subsequent chapters, which discuss rendering from a more physically based perspective. We will also learn more about the often-neglected “second half” of the rendering process: the transformation of colors that represent scene linear light quantities into final display colors.
8.1 Light Quantities
The first step in any physically based approach to rendering is to quantify ...
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