Just about every post I've seen about removing a specific biome has been answered with two words, "Terrain Control". I don't want to get a plugin, just for this. I want to do it myself. I'm extremely new to terrain generation as a whole, so I'm trying to figure this out slowly. I have a few questions. 1. Do you have to change the biome in a BlockPopulator? If not, where? 2. When it gets changed, to do have to re-generate the chunk, or has it not been generated yet? 3. If I have to re-generate the chunk, how can I avoid the obvious chunk borders showing?