MK Fast Landscape Erosion Brush
Drop a brush on your landscape and get eroded ridges and gullies instantly. No simulation to wait for, and nothing baked in.
Drag to compare
Left is the base landscape. Right is the same landscape with one erosion brush over it. Switch to the splat mask to see the layer output the brush writes for your landscape material.
Erosion in seconds
Built on Phacelle noise and driven by your landscape's own height.
Four steps
From a blank landscape to eroded terrain with painted layers.
Enable
Turn on the Landmass plugin and enable Edit Layers on your landscape actor.
Add
In Landscape mode, open Manage › Blueprint and add MK_ErosionBrush.
Tune
Pick a preset or adjust scale, strength, octaves and gully weight. Save your own presets for later projects.
Paint
Name a landscape layer, choose slope, ridge, deposition or altitude, and pick Add, Replace or Multiply.
What you get
Dashed values are placeholders.
Plugin
Version 1| Engine | UE 5.8 5.6 with v1.1 |
|---|---|
| Built with | Blueprint and materials (HLSL) |
| Requires | Landmass plugin, landscape Edit Layers |
| Non-destructive | Yes |
| Nanite | Not required |
| Outputs | Height, weightmap layers (slope, ridge, deposition, altitude) |
| Presets | Yes, save and reuse |
| Author | Michael Kinsey |
Parameters
Full reference in the docs| Shape | Erosion Scale, Erosion Strength, Gully Weight, Cell Scale |
|---|---|
| Detail | Octaves, Gain, Lacunarity, Detail, Noise Scale |
| Quality | Resolution Multiplier, Sample Step |
| Layers | Effect, Blend Type, Splat Strength, Offset |
| Masks | Slope and altitude masks with strength, scale, falloff and invert |
Actively developed
Buying v1 gets you the updates below as they land on Fab.
v1
- Fast procedural erosion brush
- Slope-aware gullies
- Splat mask output
- UE 5.8
v1.1
- Full C++ rewrite, same workflow
- Back-port to UE 5.6
- Height and layers update live as you move or resize the brush
More brushes
- Thermal erosion
- Shoreline terraces
- Deposition
- Wind erosion
- Smoothing
- More noise types
FAQ
Setup, every parameter and known issues live in the docs. Read the docs →
Is this a simulation?
No. Erosion is generated procedurally, so it appears immediately instead of running hundreds of iterations. You can move or remove the brush at any time.
Does it change my landscape permanently?
No. It's a Landmass brush on an edit layer, so the original landscape stays untouched underneath.
Do I need Nanite?
No. It works on regular landscapes.
Which engine versions are supported?
UE 5.8 for v1. Version 1.1 adds UE 5.6.
Can I texture the erosion?
Yes. The splat mask output marks gullies and ridges so your landscape material can layer rock, sediment or grass on them.