Terrainy

Quickly create natural-looking terrain with customizable noise parameters. This tool is designed to create simple terrains that do not require manual painting
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• 📦 Installation
• Getting started 📝
  • Terrain parameters 🗻
    • Mesh resolution
    • Size depth
    • Size width
    • Max terrain height
    • Terrain meshes
    • Terrain Material
  • Noise parameters
    • Randomize noise seed
    • Noise
    • Noise texture
    • Elevation curve
    • Fallof map texture
      • Smooth edges
      • Abstract Curve
      • Black Holes
      • Center Line
      • Center Soft
      • Circle
      • Inverted Circle
      • Tiny Circle
      • Circle Irregular
      • Vertical
• Shader materials 🏞️
  • Albedo terrain mix

📦 Installation

1. Download Latest Release
2. Unpack the addons/ninetailsrabbit.terrainy folder into your /addons folder within the Godot project
3. Enable this addon within the Godot settings: Project > Project Settings > Plugins

To better understand what branch to choose from for which Godot version, please refer to this table:

Godot Version	terrainy Branch	terrainy Version
	main	1.x

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Getting started 📝

Creating a new terrain is as easy as adding the Terrainy node into your scene.

This node will warn you in the editor that it needs:

• A terrain meshes array representing a group of MeshInstance3D from which you want to generate the terrains.
• A noise value with an instance of FastNoiseLite which is used as a template for generating the terrain surface or a custom noise_texture.

If you try to generate a terrain without this values a warning will be pushed to the output window but it does not interrupt the execution of your game.

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Terrain parameters 🗻

This section contains information on parameters that affects the terrain generation. Each time one of this is change in the editor, a new terrain is generated.

Mesh resolution

More resolution means more detail (more dense vertex) in the terrain generation, this increases the mesh subdivisions and could reduce the performance in low-spec pcs.

Size depth

The depth size of the mesh (z) in godot units (meters)

Size width

The width size of the mesh (x) in godot units (meters)

Max terrain height

The maximum height (y) at which this terrain can be generated in godot units (meters). The noises values are in a range of (0, 1). So if the noise value in a specific vertex point it's 0.5 the height returned for a max_terrain_height of 50 the result will be 50 * 0.5 = 25

Terrain meshes

The terrain meshes Array[MeshInstance3D] where the terrain meshes will be generated. On each mesh a new PlaneMesh is generated be careful if you have a mesh already created

The final mesh will always end up as a result in an ArrayMesh.

Terrain Material

This is the material that will be applied to the Terrain. Take a look on Shader material examples to get a detailed terrain surface mixing textures.

Noise parameters

Randomize noise seed

When enabled, in each generation the seed of the selected noise will be randomized. Disable it to do it manually and keep the same seed for the generated land and not lose the structure.

Noise

This is a FastNoiseLite instance. Noise values are perfect to generate a variety of surfaces, higher frequencies tend to generate more mountainous terrain.

Play with the parameters and different types of noise to get the result you want, take into account that if this noise variable is defined, the noise_texture will be ignored.

Noise texture

Use a texture as noise to generate the terrain. If a noise is defined, this texture will be ignored.

You can find a lot of ready noise textures inside the addon in this path addons/ninetailsrabbit.terrainy/assets/SBS - Noise Texture Pack - 256x256 folder from ScreamingBrainStudios

This textures are divided into categories:

• Cracks
• Craters
• Gabor
• Grainy
• Manifold
• Marble
• Melt
• Milky
• Perlin
• Spokes
• Streak
• Super Noise
• Super Perlin
• Swirl
• Techno
• Turbulence
• Vein
• Voronoi

Elevation curve

This curve is powerful that you can adjust what the maximum height on the ground will be according to the graph from left to right in the generated noise image. This allows you to create flat mountains or holes in the generated terrain

Here you can see an example:

Fallof map texture

Use an image to smooth the edges on the terrain. We provide a few images to get some extra shapes in the generated terrains by being able to create islands, cliffs and so on.

Below I will show the images and the result of the generated plots.

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Smooth edges

Abstract Curve

Black Holes

Center Line

Center Soft

Circle

Inverted Circle

Tiny Circle

Circle Irregular

Vertical

Shader materials 🏞️

When you generate the terrain with a StandardMaterial3D the result will be simple and with a single colour unless you use gradients.

This can be useful for some cases where you don't need a lot of detail but if you need something more advanced there are some shaders that can help us.

Albedo terrain mix

This addons comes with a modified shader from DiztyNinja that can be used on terrain_material exported parameter.

With this shader you can mix a total of 3 textures that represents a surface based on the height of the terrain where grass represents the top surface, the rock represents the medium surface and the sand represents the bottom_surface.

Play around with the parameters until you get the result you want.

You can see an example here using textures from https://ambientcg.com/