Painting the Interdimensional Traveler - ZBrush Creature Design: Creating Dynamic Concept Imagery for Film and Games - page 304

Final Effects: Noise and Depth of Field
We have nearly completed this illustration. Now we will add the final touches to help pull the image together.
This section will look at how to add a layer of noise to the image as well as create the impression of depth
of field. Both of these effects are borrowed from the discipline of photography where noise and depth of
field are natural occurrences in all photos and help create a sense of realism. Noise is a random pattern that