Let's summarize a few of the things that we have covered in this chapter.

Well, for one thing, we have taken a look at how the Inverse Square law works and in particular seen how this affects lighting in the real world. We also noted that besides making this physically accurate decay type available to artists, V-Ray lights also offer a number of nonphysical decay options, whose behavior we demonstrated.

We also looked briefly at the color of light sources, noting that real-world lighting artists make use of the Kelvin color temperature scale to accurately describe or define their color. Since, mimicking real-world lighting setups and making use of real-world lighting data is something that we may be required to do when rendering with V-Ray, getting to understand the Kelvin color temperature scale should be considered an important part of our technical rendering education.

Color bleed, we noted, is a product of bounced light and surface material coloration that can present quite a problem...