i have my custom dimension working. but it is generating like the world type. i am using a custom biome and using the worldChunkManagerHell class. My goal is to not have nether portals spawn when you teleport to this dimension and to have no terrain generate.any help is welcomed

You probably could extend the worldChunkManagerHell class and overwrite the given methods.

If you really want a void world, with no world gen at all, you might need to create your own chunk provider that simply returns an array of all 0's (yep, 65536 repetition of 0) to make everything an air block.  This isn't too hard -- making a new chunk provider that produces actual terrain in a new way would be, but filling with all one block, not so much.  I did this once before with bedrock (planned to house dungeons), but its been away and I don't have that code -- but if you really want nothing, having a chunk provider that is based on all air will work,

 

You should look at the chunk providers / terrain gen stuff in the vanilla code -- not world gen, the step before world gen, terrain gen, specifically chunk providers for clues.  The chunk does start as an array of byte[65536] which is why you have to use id and only ids from 0-255 (contrary to popular misconception, this limit applies only terrain generation, not to world gen in general).

 

Not sure what else I can add -- I hope I understood your intentions and that this helps.

 

(BTW, what do you want with a void dimension anyway?)

i did manage to make a void world. sadly a nether portal keeps showing up in the dimension. how can i stop this from happening?

net.minecraft.world.Teleporter creates the nether portal, you need to extend it and override makePortal to make your portal instead. Then use that instead of Teleporter when teleporting the player to your dimension.

Then use that instead of Teleporter when teleporting the player to your dimension.

 

And from.

thanks i got it working