DOCUMENTATION

DISCORD

A simple yet powerful terrain editing tool that lets you modify Unity terrains without permanently altering your original data. Perfect for creating stylized, cartoony landscapes or rapid prototyping—change anything at any time without commitment or hassle. ALL SPLINE BASED!

Easy Setup – Create your terrain and splines, parent them to an empty GameObject, then press the "Find Refs" button - you're ready to go!

FEATURES:

Non-Destructive Workflow - Experiment freely and iterate quickly without permanently modifying your terrain
Multi-Terrain Support - Work seamlessly across multiple terrain objects simultaneously (real-time updates may slow down linearly with the number of active terrains in your scene)
Supports Multiple Terrain Operations - Height, Paint, Hole, Fill, with configurable brushes both global and local
Mixed Workflow - Combine workflows of TerraSplines + Unity Terrain Editor (EXPERIMENTAL)
Detail and Tree Support - place grass and other details, trees on your terrain using splines!

REQUIRMENTS

Unity 2022.3+
Unity Splines Package 2.0.0+
Unity Terrain Tools 5.0+
Universal Render Pipeline (for ShaderGraph Shaders in the Samples)

!!! WARNING !!!

If your scene has a lot of splines and/or terrains the tool will not work in real-time. We recommend switching to manual update mode when the scene gets laggy.

big thanks to David Svez with help with the UI and feature implementation

TerraSplines - Spline Terrain Editor