Terrain Generation Study by barrettotte - 3

Procedural

Using Perlin noise to generate a map texture and then generate an LOD enabled terrain mesh from the map. This system was going to be used in a now abandoned project.

Unity 2017.3.1f1Unknown LicenseUpdated 267 days agoCreated on March 28th, 2018
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Terrain-Generation-Study

Using Perlin noise to generate a map texture and then generate an LOD enabled terrain mesh from the map.

About:

This was going to be my attempt at creating a No Man’s Sky-esque planet/terrain system. The planet would share the same map as the terrain and when a ship would land, the appropriate terrain chunks would be generated. I however lost steam after implementing the terrain chunk LOD system and never got around to the UV, transform, and spherical coordinate system translating. If I create a similar project in the future I will use this as the basis.

Features:

  • Implements a port of LibNoise for C# for noise generation
  • Octahedron sphere procedural generation
  • Color mapping based off of noise map values
  • Terrain chunk generation based off of noise map
  • Circular buffer implementation to allow terrain chunk wrapping
  • Terrain chunk LOD system for better performance
  • Threading for map generation

Planned, but Never Implemented:

  • Fix seams between terrain chunks
  • UV, transform, and spherical coordinate translation
  • Landing on planet generates appropriate terrain chunks
  • Planet rotation
  • Planetary generation from seed
  • Longitude/Latitude system

Screenshots:

LOD System Video: LOD.mp4 in this repo.

Flat Color Map Generation Map Generation

Octahedron Sphere Planet Generation Planet Generation

Mesh Generation Mesh Generation

LOD System LOD System

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