I just added that topic to my Level 2 training sessions.
Here's the original video from James Booth.
That’s a great video, but not what Gerry was referring to.
The demo at the UG was how to import a full 3D model and convert it to a decent (squished) relief model (Ed used a full 3D model of a Mars Rover).
The technique shows how the Emboss tool is used, along with the application of perspective and a duplicate of the model as a “base” overlaid with a detailed version, etc.
I think there was a video on that some time ago past, but I couldn’t locate it. It might have been on a previous UG memory stick.