I've made threads about it here: http://irrlicht.sourceforge.net/phpBB2/viewtopic.php?t=23045 http://www.gamedev.net/community/forums/topic.asp?topic_id=456737 Basically I got the code from here: http://freespace.virgin.net/hugo.elias/models/m_perlin.htm to compile, but now I have no idea how to use it. I want it to generate heightmaps which I could then record to a text file and compress (I plan on making a lot of these) and later I could uncompress and apply to a 3D model (a sphere). So it would look something like Populous.