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What is grasssystemthreejs?

achrefelouafi/grasssystemthreejs — explained in plain English

Analysis updated 2026-05-18

48JavaScriptAudience · developerComplexity · 2/5LicenseSetup · easy

In one sentence

A browser based interactive 3D soil and terrain sandbox built with Three.js, featuring procedural ground, moss, wind animated grass, and cinematic rendering.

Mindmap

mindmap
  root((Soil Studio))
    What it does
      Procedural 3D terrain
      Live sculpting controls
      Cinematic rendering
    Tech stack
      Three.js
      Vite
      lil-gui
    Use cases
      3D graphics demos
      Terrain shader learning
      Portfolio showcase
    Audience
      Developers
      3D graphics enthusiasts
    Setup
      Node.js 18 plus
      WebGL2 browser

Code map

Detail Auto

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filefunction / class

What do people build with it?

USE CASE 1

Explore a live 3D terrain sandbox with sliders for soil, moss, cracks, and wind.

USE CASE 2

Study the source code as an example of procedural shader based terrain in Three.js.

USE CASE 3

Drop in your own 3D model and see it blend into the procedural ground with moss.

USE CASE 4

Use the cinematic post-processing setup as a reference for depth of field and bloom in Three.js.

What is it built with?

Three.jsJavaScriptViteWebGL2

How does it compare?

achrefelouafi/grasssystemthreejsnetflix/ember-batch-request0xsufi/fable-jailbreak
Stars484847
LanguageJavaScriptJavaScriptJavaScript
Last pushed2023-03-24
MaintenanceDormant
Setup difficultyeasymoderateeasy
Complexity2/53/52/5
Audiencedeveloperdeveloperdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · easy Time to first run · 5min

Requires a browser with WebGL2 support to see the full rendering pipeline.

MIT license, free to use for any purpose including commercial use, as long as the copyright notice is kept.

So what is it?

Soil Studio is an interactive 3D sandbox that runs in a web browser and lets you sculpt and explore a patch of realistic looking ground in real time. It is built with the Three.js graphics library, and even though the repository is named GrassSystemThreeJS, the project has grown far beyond just grass into a full soil and terrain playground with moss, weather effects, and a movable camera all in one scene. The core of the project is a single ground surface that gets its shape and coloring entirely on the graphics card. Sliders in an on screen control panel let you adjust things like mounded terrain, dry cracked patches, and damp moisture areas, all generated procedurally rather than hand drawn. A moss covering can be layered on top with its own texture and raised height, and a full field of grass blades can be added, each one individually placed and animated to bend in the wind while following the shape of the ground and moss beneath it. You can also drop in a 3D model, such as a bundled rusty car or Porsche, and upward facing surfaces on that model will pick up their own moss the same way the ground does. Beyond the ground itself, the scene includes volumetric clouds rendered with a light marching technique for realistic shading, plus a cinematic camera pipeline with depth of field blur, bloom glow, color grading, film grain, and adjustable field of view. A three point lighting setup completes the look, mixing a warm key light, a cool fill light, and a rim light. To run it you need Node.js version 18 or newer and a browser that supports WebGL2. After installing dependencies you start a local development server with a single command and open the printed local address in your browser. Most of the heavier features like grass, moss, clouds, and the 3D model are turned off by default and need to be enabled from the control panel. The project is released under the MIT license.

Copy-paste prompts

Prompt 1
Explain how the procedural soil shader in Soil Studio generates mounds and cracks.
Prompt 2
Walk me through installing and running Soil Studio locally with npm and Vite.
Prompt 3
How does the GPU instanced grass system stay glued to the terrain height field?
Prompt 4
Show me how to load my own GLB model into this project and get moss to appear on it.

Frequently asked questions

What is grasssystemthreejs?

A browser based interactive 3D soil and terrain sandbox built with Three.js, featuring procedural ground, moss, wind animated grass, and cinematic rendering.

What language is grasssystemthreejs written in?

Mainly JavaScript. The stack also includes Three.js, JavaScript, Vite.

What license does grasssystemthreejs use?

MIT license, free to use for any purpose including commercial use, as long as the copyright notice is kept.

How hard is grasssystemthreejs to set up?

Setup difficulty is rated easy, with roughly 5min to a first successful run.

Who is grasssystemthreejs for?

Mainly developer.

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