Adaptive Shadow Sampling and 8.0

Adaptive Shadow Sampling allows the renderer to save time by adaptively lowering render quality parameters in dim shadow areas. This can save quite a bit of time in some scene, but can also introduce artifacts if set too high. This tutorial discusses how the gamma function in 8.0 can necessitate different values as compared to 7.x
View Tutorial

Anti-Aliasing & Pixel Detail settings in 8.0

The Block Volume Subdivision Limit controls which pixels get anti-aliased, often called oversampling, by examining pixel intensity differences between neighboring pixels. This tutorials specifically addresses how this variable is affected by the new gamma controls in 8.0.
View Tutorial

8.0: Working with Floating Point Color, 3

This tutorial shows how to adjust the colors of an HDRI floating-point color image to heighten bright area in a predictable fashion. It will help you to become familiar with working in the realm of floating point color.
View Tutorial