Cloning in SpotLight
This tutorial covers the use of SpotLight for cloning parts of an image and then projecting that image directly on to a model with Spotlight projection mode and polypainting. This video is part of a longer tutorial; texturing a Shelby A11 flying helmet and head. In this section a texture for the eyes is prepared using the SpotLight dial to clone out highlights from a source image which is then projected on to the eyes.
http://www.escapestudios.co.uk/free-tutorials-animation-zbrush/
Enjoy!
Best,
Mark