How to edit and create Biomes
Explores where world generation assets can be found and how to edit them.
Where are the Assets
World generation assets are kept in the HytaleGenerator directory within the assets.
/Server/HytaleGenerator//BiomesBiome assets, with content configurations.
/WorldStructureGenerator files that define which biomes spawn together.
/DensityDensity assets that can be referenced by any other assets.
/AssignmentsProp assets that can be referenced by any Biome assets.
An example of this structure can be found bellow, packed in an asset pack with the instance configuration.
https://drive.google.com/file/d/1sIz_CluANIIe3n8vNiOi-4PQdeqCO0qY/view?usp=drive_link
Ensure you place your asset pack in the correct directory, under Mods.
How to visit our worlds
https://drive.google.com/file/d/1BJurxyj-taE-PXWm04bk7Dl6X7ZHTH92/view?usp=sharing
Requirements
- You must be an Operator in the world.
- To do this, run
/op self
- To do this, run
- You must be in Creative mode.
- Press the
Okey, O for Orange.
- Press the
The generation assets define a set of generators but on their own you cannot visit these. Currently you require an Instance with a generator that will allow you to visit your work.
/Server/Instances/Instances are separate worlds that players can join using the /instances command. Each instance has an Instance.bson configuration asset that specifies which generator to use, among other worldly settings.
{
"WorldGen": {
"Type": "HytaleGenerator",
"WorldStructure": "Basic",
"playerSpawn": {
"X": 123,
"Y": 480,
"Z": 10000,
"Pitch": 0,
"Yaw": 0,
"Roll": 0
}
}
}You can create custom instances for different world structures and biomes as you need them.
How to edit Biomes
We currently use the Hytale Node Editor when editing world generation assets. This can be accessed while in-game from the Content Creation menu when pressing B. The node editor is then found under the asset editor dropdown on the upper left.

Once you have the Hytale Node Editor open, through the file menu you can open Biomes by navigating to the Biomes directory and selecting one from your pack.
/Server/HytaleGenerator/Biomes/Biome Asset Structure
Every Biome has a root Biome node, this node splits into 5 structures. This is covered briefly but more information on each field can be found on the World Generation Concepts page.

Each biome is for the most part self contained, meaning it has control over what appears with the biome. The only exception to this are Base Heights.
Mathematical function nodes that calculate the physical shape of the Biome's terrain.
Logical nodes that determine what materials (blocks) make up a Biome's terrain.
Function nodes that add objects like prefabs and decorations to the terrain.
Logical nodes that determine the environment asset at a given coordinate within the biome. This asset determines things like weather, NPC spawns, and sounds.
Logical function nodes that determine a colour code that can be used by certain blocks in the world. Typically this will be grasses and soils.
How to preview your work
https://drive.google.com/file/d/1mNcHn9LhFnWDF0DzWFH6_YllmKAUvUry/view?t=6
Once you are in an Instance world with the Hytale Generator active you will only be able to see your work by generating new chunks. There are a few ways to do this.
The viewport command selects an area around the Player that will live reload as you make changes to the generator.
/viewport --radius 5You can also create a new world to show your changes.
/instances spawn <instance>The last option is to simply fly south, new chunks will generate with the changes made.