--- mapgen_helper.old/noise_manager.lua
+++ mapgen_helper/noise_manager.lua
@@ -47,7 +47,7 @@ mapgen_helper.perlin3d = function(name, minp, maxp, perlin_params)
 	
 	buffer.nvals_perlin_buffer = buffer.nvals_perlin_buffer or {}
 	buffer.nobj_perlin = buffer.nobj_perlin or minetest.get_perlin_map(perlin_params, chunk_lengths)
-	if buffer.nobj_perlin.get_3d_map_flat then
+	if false and buffer.nobj_perlin.get_3d_map_flat then
 		return buffer.nobj_perlin:get_3d_map_flat(minp, buffer.nvals_perlin_buffer), VoxelArea:new{MinEdge=minp, MaxEdge=maxp}
 	else
 		return buffer.nobj_perlin:get3dMap_flat(minp, buffer.nvals_perlin_buffer), VoxelArea:new{MinEdge=minp, MaxEdge=maxp}