For usage documentation please visit https://doc.babylonjs.com/extensions and choose "procedural textures library".
To install using npm :
npm install --save @babylonjs/core @babylonjs/procedural-textures
Afterwards it can be imported to your project using:
import { StandardMaterial } from '@babylonjs/core/Materials/standardMaterial';
import { FireProceduralTexture } from '@babylonjs/procedural-textures/fireProceduralTexture';
And used as usual:
// Some awesome code
var fireMaterial = new StandardMaterial("fontainSculptur2", scene);
var fireTexture = new FireProceduralTexture("fire", 256, scene);
fireMaterial.diffuseTexture = fireTexture;
fireMaterial.opacityTexture = fireTexture;
// Some more awesome code
For more information you can have a look at our ES6 dedicated documentation.