Hi!

I'm currently making my biome (i'm using json files). Everything is alright, but only top layer appears. Stone IS in the game, but just don't go to the biome. What should I do?

{
    "config": {
        "top_material":{
            "Name": "mymode:miracle_grass"
        },
        "under_material":{
            "Name": "mymode:miracle_stone"
        },
        "underwater_material":{
            "Name": "mymode:miracle_stone"
        }
    },
    
    "type": "mymode:miracle"
}

 

 

is the file in the correct folder of your datapack,
show the SurfaceBuilder (mymode:miracle)

Yes, it's in the correct place, because the top layer is generated correctly. 

public class MiracleSurfaceBuilder extends SurfaceBuilder<SurfaceBuilderConfig> {

	
	public static final BlockState MIRACLE_GRASS = BlockInit.MIRACLE_GRASS.get().getDefaultState();
	
	public static final SurfaceBuilderConfig MIRACLE_GRASS_CONFIG = new SurfaceBuilderConfig(MIRACLE_GRASS, MIRACLE_GRASS, MIRACLE_GRASS);

	public MiracleSurfaceBuilder(Codec<SurfaceBuilderConfig> codec) {
		super(codec);
		// TODO Auto-generated constructor stub
	}

	@Override
	public void buildSurface(Random random, IChunk chunkIn, Biome biomeIn, int x, int z, int startHeight, double noise,
			BlockState defaultBlock, BlockState defaultFluid, int seaLevel, long seed, SurfaceBuilderConfig config) {
			SurfaceBuilder.DEFAULT.buildSurface(random, chunkIn, biomeIn, x, z, startHeight, noise, defaultBlock, 
					defaultFluid, seaLevel, seed, MIRACLE_GRASS_CONFIG);
	
		}
		
	}

}

 

your code looks okay, can you post a git repo so i can debug this?

Is "mymode" the same as your modid?