Using the Displace Filter
This is a quick review of how to use the Displace filter to enhance your textures. This filter can be useful to ‘bend’ overlying layers to match the projected depth of an underlying layer. In other words if you draw a bumpy rock wall and then paint a word on it, this filter can help that word distort to follow the bumps and spaces.
To view:
http://stormvisions.com/pages/library/photoshop/using-the-displace-filter.php

