3DTilesRendererJS/src/three/utilities.js

import { Color } from 'three';

const colors = {};

// Return a consistant random color for an index
export function getIndexedRandomColor( index ) {

	if ( ! colors[ index ] ) {

		const h = Math.random();
		const s = 0.5 + Math.random() * 0.5;
		const l = 0.375 + Math.random() * 0.25;

		colors[ index ] = new Color().setHSL( h, s, l );

	}
	return colors[ index ];

}