i made snow using nigara system and i want it to fall all al around the snow area

[Td1 (CLZ)]

@jwatte

first need to define what you even mean by “snow biome” – how do you define a biome in your level?
If it’s “painting the terrain with a particular layer

ye snow biome is painted in white layer in the landscape

@jwatte

create some kind of volume actor that you size to cover the areas you consider being snow biome

so i create blueprint class , actor then i put a box collusion ?

@jwatte

then you will probably want to query the terrain for the layer at location across some kind of grid, and spawn emitters at the places where the query says the particular layer is used.

i never tried to do the query method , so i dont have many info about it can you please explain it for me and how to do it