palette constructor (three.js)

by mmalex

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/91/three.js"></script>
<script src="https://threejs.org/examples/js/controls/OrbitControls.js"></script>
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
Palette procedural object

CSS

body {
  font-family: monospace;
  font-size: 11px;
  overflow: hidden;
}

JavaScript

var renderer;
var camera;
var controls;

var scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera(54, window.innerWidth / window.innerHeight, 0.1, 1000);

renderer = new THREE.WebGLRenderer({
  antialias: true
});
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.setClearColor(new THREE.Color(0xf9f9f9));
renderer.shadowMap.enabled = true;
renderer.shadowMap.type = THREE.PCFSoftShadowMap; // default THREE.PCFShadowMap
document.body.appendChild(renderer.domElement);

camera.position.x = 15;
camera.position.y = 15;
camera.position.z = 15;
camera.lookAt(0, 0, 0);

controls = new THREE.OrbitControls(camera);

// white spotlight shining from the side, casting a shadow
var spotLight = new THREE.SpotLight(0xffffff, 1.0, 200, Math.PI/6);
spotLight.position.set(-20, 50, 30);

spotLight.castShadow = true;

spotLight.shadow.mapSize.width = 4096;
spotLight.shadow.mapSize.height = 4096;

spotLight.shadow.camera.near = 1;
spotLight.shadow.camera.far = 100;
spotLight.shadow.camera.fov = 30;

scene.add(spotLight);

var light = new THREE.AmbientLight( 0x404040 ); // soft white light
scene.add( light );

//Create a helper for the shadow camera (optional)
// var helper = new THREE.CameraHelper( spotLight.shadow.camera );
// scene.add( helper );

//Create a plane that receives shadows (but does not cast them)
var planeGeometry = new THREE.PlaneBufferGeometry( 20, 20, 32, 32 );
// var planeMaterial = new THREE.MeshPhongMaterial( { color: 0x00ff00 } )
var planeMaterial = new THREE.ShadowMaterial();
planeMaterial.opacity = 0.5;
var plane = new THREE.Mesh( planeGeometry, planeMaterial );
plane.applyMatrix(new THREE.Matrix4().makeRotationX(-Math.PI/2))
plane.receiveShadow = true;
scene.add( plane );

var size = 25;
var divisions = 10;
var gridHelper = new THREE.GridHelper(size, divisions);
scene.add(gridHelper);

var paletteLen = 12;
var paletteWidth = 10;
var baseWidth = 1.5;
var baseThickness = 0.25

var material = new THREE.MeshPhongMaterial({
  color:...