I gave a demo at PCD of software for "texture shading," a new method of showing terrain relief. The software is available free at www.box.net/textureshading, along with last year's slides which give an introduction to the topic, and some sample images including those I showed at PCD.
If you download the software, check back for occasional updates. If you like, email me through CartoTalk and I'll let you know when changes are made, or with a free Box.net account you can "join" my folder to get notified of updates.
A new version of the texture shading command-line tool is now available, at app.box.com/textureshading/. This update includes algorithm changes that improve the image results and make the program run faster.
In addition, Brett Casebolt of Natural Graphics has written a user-friendly texture shading application for the Mac called Terrain Texture Shader (TTS). It's available at www.naturalgfx.com/tts.htm.