Sample landscape images   Sample planet images  

Terrapin is a fractal landscape generator, inspired by the program Terragen. The generated terrains are raytraced, with a real-time preview window in which you can roam around the landscapes, adjusting parameters via a comprehensive set of controls.

When you've got it set up as you like it, you can render a larger scale image, and save it out as a bitmap. Rendering takes a couple of seconds.

Features include:

It also has a mode that allows you to create whole planets viewed from space.