BP_Biome
Biome
Spawn and Manage PCG Biome
BP_Biome — Spawns biomes such as forests, meadows, deserts, and fields, depending on the assets you own, while also managing biome intersections. It’s flexible and efficient, offering adjustable parameters and multiple presets stored in Data Tables. For more details, see Biome Presets.
Each farm or garden has the same set of options
Biome
Biome preset
Data Table
Biome presets and parameters are stored in data tables. For more info visit
Biome Presets.
Row Name
Each biome has multiple presets such as "Dense Forest", "Dead Forest", or "Forest with Meadows". Select the preset here.
Quality Preset
Changes biome generation quality. It affects foliage density, draw distances, WPO, shadows, and GI. High preset targets 60–70 FPS on an RTX 4090 at 4K resolution with 50% Epic settings. The Cinematic preset has the same foliage density as High, but it disables mesh culling — all meshes cast real shadows and affect GI. Use it for cinematics. The Lowest preset has WPO disabled.
Landscape
Pick desired landscape here if your level has multiple. When level is partitioned, leave this field unchanged.
Runtime
EXPERIMENTAL FEATURE! Forces all meshes to be spawned at runtime instead of storing them in the level. Greatly improves loading times. For more info.
Seed
Affects generation outcome. Each seed produces a different biome layout.
Spawn Options
FX
Sound
Ambient sound actors.
Particles
Particle actors like insects, falling leaves, etc., if present in the biome.
Garden
Rows
Number of garden rows on each side of the center.
Row Distance
Distance between garden rows.
Garden Bed
Garden bed on top of the field.
Border
Garden border.
Border Width
Garden border width.
Plants
Amount
Plants amount.
Distance
Distance between plants.
Scale
Plants scale.
Position Random
Amount of random offset to plant positions.
Direction
Direction which plants face. Used for directional species such as sunflowers.
Direction Random
Random variation to plant facing direction.
Weed
Particle actors like insects, falling leaves, etc., if present in the biome.
Allign to Landscape
Aligns plants to the landscape’s surface angle.
Spline
Accuracy
Distance between points when resampling the spline. More points increase accuracy but can reduce editor viewport performance.
Biome Presets.
Double Resample
Performs an extra resampling pass for smoother splines. Recommended only if visual inconsistencies are noticeable.
Hide All Splines
Hides all spline components in the editor viewport.
Preview
Dynamic Spline Preview
Updates the spline in real time during editing, which may impact viewport performance.
Controls
Help
Opens the Documentation page.
Clear PCG Link
Removes all PCG logic and creates Instanced Static Mesh Components out of the biome’s meshes.
Remove
Removes the biome.
Spawn
Spawns the biome.
Regeneration
Pause
Stops dynamic updates. Any changes within the editor, like spline or landscape adjustments, parameter changes, etc., will not force the biome to update.
Resume
Resumes dynamic updates.
Each forest or bushes strip has the same set of options
Biome
Biome preset
Data Table
Biome presets and parameters are stored in data tables. For more info visit
Biome Presets.
Row Name
Each biome has multiple presets such as "Dense Forest", "Dead Forest", or "Forest with Meadows". Select the preset here.
Quality Preset
Changes biome generation quality. It affects foliage density, draw distances, WPO, shadows, and GI. High preset targets 60–70 FPS on an RTX 4090 at 4K resolution with 50% Epic settings. The Cinematic preset has the same foliage density as High, but it disables mesh culling — all meshes cast real shadows and affect GI. Use it for cinematics. The Lowest preset has WPO disabled.
Landscape
Pick desired landscape here if your level has multiple. When level is partitioned, leave this field unchanged.
Runtime
EXPERIMENTAL FEATURE! Forces all meshes to be spawned at runtime instead of storing them in the level. Greatly improves loading times. For more info.
Seed
Affects generation outcome. Each seed produces a different biome layout.
Spawn Options
FX
Sound
Ambient sound actors.
Particles
Particle actors like insects, falling leaves, etc., if present in the biome.
Forest
Trees
Trees and bushes amount.
Grass
Grass and weed amount.
Spline
Accuracy
Distance between points when resampling the spline. More points increase accuracy but can reduce editor viewport performance.
Biome Presets.
Double Resample
Performs an extra resampling pass for smoother splines. Recommended only if visual inconsistencies are noticeable.
Hide All Splines
Hides all spline components in the editor viewport.
Preview
Dynamic Spline Preview
Updates the spline in real time during editing, which may impact viewport performance.
Controls
Help
Opens the Documentation page.
Clear PCG Link
Removes all PCG logic and creates Instanced Static Mesh Components out of the biome’s meshes.
Remove
Removes the biome.
Spawn
Spawns the biome.
Regeneration
Pause
Stops dynamic updates. Any changes within the editor, like spline or landscape adjustments, parameter changes, etc., will not force the biome to update.
Resume
Resumes dynamic updates.
BP_Road
Road
Spawn and Manage PCG Biome
BP_Biome — Spawns biomes such as forests, meadows, deserts, and fields, depending on the assets you own, while also managing biome intersections. It’s flexible and efficient, offering adjustable parameters and multiple presets stored in Data Tables. For more details, see Biome Presets.
Each road or path has the same set of options
Biome
Biome preset
Data Table
Biome presets and parameters are stored in data tables. For more info visit
Biome Presets.
Row Name
Each biome has multiple presets such as "Dense Forest", "Dead Forest", or "Forest with Meadows". Select the preset here.
Quality Preset
Changes biome generation quality. It affects foliage density, draw distances, WPO, shadows, and GI. High preset targets 60–70 FPS on an RTX 4090 at 4K resolution with 50% Epic settings. The Cinematic preset has the same foliage density as High, but it disables mesh culling — all meshes cast real shadows and affect GI. Use it for cinematics. The Lowest preset has WPO disabled.
Landscape
Pick desired landscape here if your level has multiple. When level is partitioned, leave this field unchanged.
Runtime
EXPERIMENTAL FEATURE! Forces all meshes to be spawned at runtime instead of storing them in the level. Greatly improves loading times. For more info.
Seed
Affects generation outcome. Each seed produces a different biome layout.
Spline
Accuracy
Distance between points when resampling the spline. More points increase accuracy but can reduce editor viewport performance.
Biome Presets.
Double Resample
Performs an extra resampling pass for smoother splines. Recommended only if visual inconsistencies are noticeable.
Hide All Splines
Hides all spline components in the editor viewport.
Preview
Dynamic Spline Preview
Updates the spline in real time during editing, which may impact viewport performance.
Spawn Options
Road
Width
Road width.
Lift
Road lift above landscape.
Separator
Gives the road a track-like appearance.
Sides
Extended road border.
Plants Amount.
Amount of wild weed and plants.
Controls
Help
Opens the Documentation page.
Clear PCG Link
Removes all PCG logic and creates Instanced Static Mesh Components out of the biome’s meshes.
Remove
Removes the biome.
Spawn
Spawns the biome.
Regeneration
Pause
Stops dynamic updates. Any changes within the editor, like spline or landscape adjustments, parameter changes, etc., will not force the biome to update.
Resume
Resumes dynamic updates.
BP_Biome
Biome
Spawn and Manage PCG Biome
BP_Biome — Spawns biomes such as forests, meadows, deserts, and fields, depending on the assets you own, while also managing biome intersections. It’s flexible and efficient, offering adjustable parameters and multiple presets stored in Data Tables. For more details, see Biome Presets.
Each land biome has the same set of options
Biome
Biome preset
Data Table
Biome presets and parameters are stored in data tables. For more info visit
Biome Presets.
Row Name
Each biome has multiple presets such as "Dense Forest", "Dead Forest", or "Forest with Meadows". Select the preset here.
Quality Preset
Changes biome generation quality. It affects foliage density, draw distances, WPO, shadows, and GI. High preset targets 60–70 FPS on an RTX 4090 at 4K resolution with 50% Epic settings. The Cinematic preset has the same foliage density as High, but it disables mesh culling — all meshes cast real shadows and affect GI. Use it for cinematics. The Lowest preset has WPO disabled.
Landscape
Pick desired landscape here if your level has multiple. When level is partitioned, leave this field unchanged.
Runtime
EXPERIMENTAL FEATURE! Forces all meshes to be spawned at runtime instead of storing them in the level. Greatly improves loading times. For more info.
Seed
Affects generation outcome. Each seed produces a different biome layout.
Spawn Options
FX
Sound
Ambient sound actors.
Particles
Particle actors like insects, falling leaves, etc., if present in the biome.
Garden
Rows
Number of garden rows on each side of the center.
Row Distance
Distance between garden rows.
Garden Bed
Garden bed on top of the field.
Border
Garden border.
Border Width
Garden border width.
Plants
Amount
Plants amount.
Distance
Distance between plants.
Scale
Plants scale.
Position Random
Amount of random offset to plant positions.
Direction
Direction which plants face. Used for directional species such as sunflowers.
Direction Random
Random variation to plant facing direction.
Weed
Particle actors like insects, falling leaves, etc., if present in the biome.
Allign to Landscape
Aligns plants to the landscape’s surface angle.
Spline
Accuracy
Distance between points when resampling the spline. More points increase accuracy but can reduce editor viewport performance.
Biome Presets.
Double Resample
Performs an extra resampling pass for smoother splines. Recommended only if visual inconsistencies are noticeable.
Hide All Splines
Hides all spline components in the editor viewport.
Preview
Dynamic Spline Preview
Updates the spline in real time during editing, which may impact viewport performance.
Controls
Help
Opens the Documentation page.
Clear PCG Link
Removes all PCG logic and creates Instanced Static Mesh Components out of the biome’s meshes.
Remove
Removes the biome.
Spawn
Spawns the biome.
Regeneration
Pause
Stops dynamic updates. Any changes within the editor, like spline or landscape adjustments, parameter changes, etc., will not force the biome to update.
Resume
Resumes dynamic updates.
The river biome differs only in the "Spawn Options" section
Biome
Spawn Options
Water
Water
Water surface and duckweed.
FX
Sound
Ambient sound actors.
Particles
Particle actors like insects, falling leaves, etc., if present in the biome.
BP_Biome_River
Water Biome
Spawn and Manage Water PCG Biome
BP_Biome — Spawns water biomes such as rivers, lakes, and swamps, depending on the assets you own, while also managing intersections with land biomes. It’s flexible and efficient, offering adjustable parameters and multiple presets stored in Data Tables. For more details, see Biome Presets.
Each land biome has the same set of options
Biome
Biome preset
Data Table
Biome presets and parameters are stored in data tables. For more info visit
Biome Presets.
Row Name
Each biome has multiple presets such as "Dense Forest", "Dead Forest", or "Forest with Meadows". Select the preset here.
Quality Preset
Changes biome generation quality. It affects foliage density, draw distances, WPO, shadows, and GI. High preset targets 60–70 FPS on an RTX 4090 at 4K resolution with 50% Epic settings. The Cinematic preset has the same foliage density as High, but it disables mesh culling — all meshes cast real shadows and affect GI. Use it for cinematics. The Lowest preset has WPO disabled.
Landscape
Pick desired landscape here if your level has multiple. When level is partitioned, leave this field unchanged.
Fill Entire Landscape
Skips spline bounds and covers the whole landscape.
Runtime
EXPERIMENTAL FEATURE! Forces all meshes to be spawned at runtime instead of storing them in the level. Greatly improves loading times. For more info.
Seed
Affects generation outcome. Each seed produces a different biome layout.
Intersection
Intersect
Handles intersections with other biomes.
Biome Priority
Higher biome priority will replace biomes with lower priority when they overlap and if the Intersect option is enabled.
Spawn Options
Water
Water
Water surface and duckweed.
FX
Sound
Ambient sound actors.
Particles
Particle actors like insects, falling leaves, etc., if present in the biome.
Controls
Help
Opens the Documentation page.
Clear PCG Link
Removes all PCG logic and creates Instanced Static Mesh Components out of the biome’s meshes.
Remove
Removes the biome.
Spawn
Spawns the biome.
Regeneration
Pause
Stops dynamic updates. Any changes within the editor, like spline or landscape adjustments, parameter changes, etc., will not force the biome to update.
Resume
Resumes dynamic updates.
BP_Remover
Remover
Remove selected biome elements.
BP_Remover — Removes selected types of foliage, terrain elements, trees, and bushes from the biome. It’s an efficient tool for fine-tuning or clearing specific areas without affecting the rest of the biome.
Removes specific species from PCG Biome inside selected spline area
Default
Remover Preset
Data Table
Remover tags are stored in data tables.
Row Name
Select species or specific parts here.
Select the preset here.
BP_FoliageManager
Foliage Manager
Controls wind and foliage quality.
BP_FoliageManager — Manages global foliage behavior, including wind strength and overall foliage quality settings. Ensures consistent environmental effects across all biomes.
Foliage related adjustments
Wind
Help
Opens the wind settings documentation.
Reset Water Level
Reverts water level to default baseline. Use when wate biome is removed, but water level is not updated.
Wind Strength
Overall wind intensity affecting foliage and FX.
Wind Strength Cinematic
Normal wind strength can not be controlled with sequencer, this is a multiplier for normal wind strength.
Wind Direction Random
Adds random variation to the wind’s direction over time.
Wind Direction Random Speed
Sets how quickly wind direction randomness changes.
Render
Foliage Quality
Particles Amount
Controls particle density (rain, leaves, insects, etc.).
Night
Enables night-specific effects.
Rain
Rain visuals, and wetness effects.
Snow
Snow cover amount for some biomes.
Background hills and mountains share the same options
Scatter
Scatter
Enables or disables tree scattering across mountain surfaces.
Type
Selects one of five mountain types used for scattering rules.
Density
Controls the number of trees placed per area unit.
Area
Defines the region size where trees are distributed.
Scale
Adjusts the overall scale of scattered trees.
Slope
Limits scattering based on surface steepness.
Default
Clear PCG Link
Clears all procedural generation logic and converts spawned meshes into an Instance Static Mesh Components from the selected mountain.
Clear PCG Link Level
Clears all procedural generation logic and converts spawned meshes into an Instance Static Mesh Components across the entire level.
Regenerate Level
Regenerates all mountains and their foliage across the level.
Spawn
Manually spawns or refreshes the selected mountain instance.
Culling
Cull
Enables back-face tree culling to hide vegetation behind the mountain.
Culling Amount
Controls how aggressively backside trees are removed.
Biome data table structure. Each biome and its presets are stored in this table
Data Table
Row Name
Defines the biome variation preset. You can create biome variations by duplicating a row and adjusting its values. To apply a preset, select the corresponding row in your biome blueprint.
Mesh Collections
Our system for storing and organizing meshes. You can mix biomes by adding collections from other biomes, but this only works if the original biome includes similar foliage types. For example, you can add different kinds of trees only if the biome already contains trees. To add a collection, click the + button and drag a collection into the new empty slot. To remove one, click the arrow at the end of the slot and select Delet
DT_Poplar_Collection
this is the example of the mesh collection.
DT_BoxElder_Collection
this is the example of the mesh collection.
DT_MeadowPlants_Collection
this is the example of the mesh collection.
PCG Graphs
Biome Graph
The main PCG graph responsible for spawning large meshes such as trees and bushes in forest biomes.
Coverage Graph
The PCG graph that handles smaller elements like grass, plants, and ground debris.
Terrain Graph
The PCG graph used to spawn terrain features such as cliffs and large rocks.
Biome Coverage
Defines the balance between dense and open areas using global noise. In a forest, this noise determines where trees or meadows appear. A value of 1 fully covers the area with trees, while 0 spawns only open fields.
Biome Density
Controls how densely trees are placed within forested regions.
Biome Season
Adjusts the amount of foliage on trees and bushes. A value of 0 spawns only dead trees, while 1 produces maximum leaf coverage. Each tree is affected individually, so even at 0.9, a few dead trees may appear.
Shore Distance
Used in water biomes to control how far the shoreline extends from the water.
Quality Settings
Group Name
Plants and trees are organized into groups, allowing each group to have its own spawn quality settings. Trees are grouped as “Trees Large”, “Trees Huge”, “Trees Small”, and similar categories. It’s important to preserve these group names, as the biome system specifically searches for meshes within predefined groups.
Submesh
Mesh Name
The name of an individual tree part, such as Trunk, Branches, or Leaves01–04. Here you can fine-tune quality settings for each specific mesh.
Cull Distance
The distance at which the mesh stops being rendered.
Cast Shadow
Determines whether the mesh casts shadows.
Indirect Lighting
Defines whether the mesh contributes to indirect lighting.
Distance Field
Controls whether the mesh is included in the distance field.
Ray Tracing
Controls whether the mesh is included in ray tracing calculations.
Scale
Overall foliage scale.
WPO
The distance at which WPO (wind and interaction animation) stops being rendered.
Tags
Index [...]
Biome Tag added to the biome blueprint.