While I can still reply to this post I thought I would just mention that of these 3 resources, permadi, lodev, and flipcode, www.flipcode.com was the most impor

While I can still reply to this post I thought I would just mention that of these 3 resources, permadi, lodev, and flipcode, www.flipcode.com was the most important for understanding how to do heightmap terrain in a raycaster, like how Comanche and Delta Force did it. Those are just for understanding, to go deeper, into code, perhaps the most important thing I found was here: http://rainmak3r.altervista.org/voxel/ukvoxel.htm http://rainmak3r.altervista.org/voxel/ukvoxel.htm if anything is broken I believe archive.org has copies of the zip files as well, not just the html. Just wanted to stick it here so perhaps someone else will find it easier to find, it took me a lot of googling and wandering through abandoned forums, looking for out-of-print books that no one has bothered to digitize, etc.