Terrain Generation

In computing, procedural generation is a way of producing data algorithmically rather than manually, usually by integrating human-generated assets and algorithms coupled with computer-generated randomness and processing capacity.Virtual terrains have an important role in computer graphics, and their applications range from landscape design and flight simulators to movies and computer games. A terrain is the dominant visual element of the scene, or it plays a central part in the application.

While there are various methods of generating terrain, using perlin noise is one of the most fundamental method of creating random structure within the terrain. [Original]