Link: Minecraft Like Rendering Experiments in OpenGL 4 – Codeflow
I found this article while browsing reddit and was blown away. I have been a little mystified at the potential algorithms used by notch to render the terrain in Minecraft.
This provides a killer explanation of some interesting algorithms that can be used to generate such worlds. It also contains the source code that you can download and play with.
Minecraft Like Rendering Experiments in OpenGL 4 – Codeflow.