I'm interested in creating height maps for 3d modeling. I've been learning to make Photoshop grey-scale clouds to make my own height maps. I also found a number of height maps on line. What I would like to do is create my own library of height maps of real world locations to edit into my unique map art. This will allow me to just paint in a river or valley, etc. I wish to find others who have experience creating height maps, or a tutorial I may have missed on You Tube.