addi wrote:also there is a function minetest.register_ore() that can be used to generate the iron ore in the desert
That function might lead to a significant speedup regarding ore generation. Not only for the iron ore but also for the non-ores (stratus, claylike). To my knowledge, the function offers parameters that might cover those situations. Please explore that :-) LuaVoxelManipulator is also great but may not be necessary here. The new ore generation routines ought to be good enough.

