# Biomes Workflow

For the Double and Multi preset, you have access to multiple biomes. A biome is the combinaison of the automatic layer, **which defines where the biome is,** and the manually paintable sub-layers.

Just like in the initial setup, you have to assign a **Weight-Blended** LayerInfo for the BIOME and **Correction Layers**, and a **Non Weight-Blended** LayerInfo for the individual Sub-Layers that you want to paint.

The correction layers are layers are are set on top of all the biomes.

{% hint style="danger" %}
Be aware that using multiple biomes is heavy, in terms of shader compilations, complexity, edition time in the Builder, etc. 

It's recommended to stick to the "Single" preset unless you really need to use multiple Biomes !
{% endhint %}

![All 6 Biomes and a Correction layer going on top of them all.](/files/FYFTYuf7W9MqYqSGWeHh)

Each of these Biomes work as expected, with their own filters, Grass support, etc.

![Grass & Filters on the Sub-Layer 2.](/files/edceXr3mQ6vBfsg4N95C)


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