artyif / tmag

A node-based Terrain Modifier And Generator. TMAG, if you will. (Currently abandoned!)

TMAG (abandoned!)

Terrain Modifier And Generator

As I moved away from Unity, I'll no longer work on this project.

Description

TMAG is a node-based tool to generate terrains and modify pre-created ones. It's currently at a very early stage, but it's pretty usable with several caveats.

Most built-in nodes are powered by compute shaders rendering to Render Textures, making terrain generation a lot faster compared to other free alternatives like MapMagic 2. The node-based architecture also makes it much more flexible and customizable than a lot of other free terrain generators, which usually rely on Perlin noise only.

Dependencies

• From Unity registry (should get installed automatically):
  • Shader Graph
• From OpenUPM:
  • xNode
  • Tri Inspector (don't forget to run the Installer!)
  • Keijiro's Noise Shader Library

To install packages from OpenUPM, you can either use openupm-cli or manually add the scoped registry under Project Settings - Package Manager:

• Name: OpenUPM
• URL: https://package.openupm.com
• Scopes:
  • com.github.siccity.xnode
  • com.codewriter.triinspector
  • jp.keijiro.noiseshader

Install

1. Set up dependencies
2. Open Window - Package Manager
3. Click the plus button and select "Add package from git URL..."
4. Type https://github.com/ArtyIF/TMAG.git and click the "Add" button

Features and Roadmap (no particular order)

• Value, Perlin and Simplex noise generation
• Texture import
• Other generators
• Tool to convert RAW heightmap exports to regular Textures
• Basic math operators (Add, Subtract, Multiply, Divide)
• More math operators
• Steepness operatos
• More terrain-specific operators
• Heightmap output
• Splatmap output
• Detail output
• Terrain grid
• Export terrains to asset
• Infinite terrain?
• Phase out Tri Inspector? Having to install the Installer as well is cumbersome, and I don't see any benefit with this
• Move to compute shaders
• Move to shader generation? Should solve potential OoB issues
• Come up with more features

Thanks

• Denis Pahunov for creating MapMagic 2, which is an incredibly powerful (although slow on Linux Editor) free tool (with extra paid extensions) for terrain generation
• Any contributors. If you aren't one, don't be afraid!