In this video we spawn a block landscape of cubes by spawning a grid and then offsetting the cube height using perlin noise. This is a similar technique to the way Unity terrain generation works. You would probably start with a similar technique if you wanted to make something like minecraft in Unity3d. Perlin noise is a popular technique in procedural generation overall. We use this technique here to spawn a simple cube landscape but we've also used it in our Imaginary Cities video to set the heights of buildings during procedural city generation.
Get the source on GitHub for free: https://github.com/mirrorfishmedia/ImaginaryCities
