iggi.dev 이끼 / moss
60 FPS f:00000
// scene.docs / iggi-toolkit x:0.000 y:0.000 z:0.000

grow procedural moss

iggi.dev is a small, friendly toolkit for procedural moss and ground-cover generation. drop it into a Unity, Godot, or three.js scene and watch your rocks, ruins, and roof tiles slowly furr up.

quick start

// JavaScript 
import { Iggi } from 'iggi-dev';

const iggi = new Iggi({
  density: 0.62,
  height: 1.2,
  hue: 'moss-warm',
  spread: 'organic'
});

scene.add(iggi.cover(rock));

parameters

  • density0.0 — 1.0how thickly moss grows on the surface
  • height0.1 — 4.0strand height in cm
  • huemoss-warm | shade | sporeoverall color family
  • spreadpatchy | organic | uniformgrowth pattern across the surface
  • moisture0.0 — 1.0affects sheen and saturation

live tuning

scrub the sliders below — the stats panel updates in real time. parameter changes feed directly into the simulated scene below the HUD.

examples

copy / paste these into your project. tested on three.js r160+ and Unity 2023.

temple ruin

// three.js 
const ruin = await loadGLTF('temple.glb');
iggi.cover(ruin, {
  density: 0.78,
  height: 2.1,
  hue: 'shade',
  moisture: 0.71
});

cobblestone path

// Godot 4 (gdscript) 
var iggi = Iggi.new()
iggi.density = 0.31
iggi.spread = "patchy"
iggi.hue = "moss-warm"
iggi.cover(path_mesh)

forest floor field

// Unity (C#) 
var iggi = new Iggi {
    density = 0.94f,
    height  = 0.6f,
    spread  = "organic"
};
iggi.Cover(terrain);

API reference

class Iggi

new Iggi(opts)construct a generator with optional default options.
.cover(target)attach moss geometry to any mesh, group, or terrain.
.set(param, value)update a parameter and trigger a soft regrowth.
.shed()remove all generated moss. plays a small spore-puff effect.
.snapshot()returns the current parameter set as a portable JSON.

events

on('grown')fires once when the initial cover finishes growing.
on('paramchange')fires whenever .set() is called, with old + new value.
on('shed')fires after .shed() finishes.
// scene.stats LIVE
polys 128 432
strands 62 144
tex 2048²
density 0.62
height 1.2
moisture 0.48
// minimap x1.0