stencilbuffer with reflector

by GnanaSai

HTML

<script type="importmap">
	{
		"imports": {
			"three": "https://raw.githack.com/mrdoob/three.js/dev/build/three.webgpu.js",
      "three/webgpu": "https://raw.githack.com/mrdoob/three.js/dev/build/three.webgpu.js",
      "three/tsl": "https://raw.githack.com/mrdoob/three.js/dev/build/three.tsl.js",
      "three/addons/": "https://raw.githack.com/mrdoob/three.js/dev/examples/jsm/"
		}
	}
</script>

CSS

body {
	margin: 0px;
}

JavaScript

import * as THREE from 'three';
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
import { Fn, vec2, vec4, texture, uv, textureBicubic, rangeFogFactor, reflector, time, mx_noise_vec3, positionGeometry, screenUV, color } from 'three/tsl';

let mesh, renderer, scene, camera, controls;

init();

function init() {

  // renderer
  renderer = new THREE.WebGPURenderer();
  renderer.setSize(window.innerWidth, window.innerHeight);
  renderer.setPixelRatio(window.devicePixelRatio);
  renderer.setAnimationLoop(animate);
  document.body.appendChild(renderer.domElement);
  renderer.stencil = true;

  // scene
  scene = new THREE.Scene();
  scene.background = new THREE.Color(0x000000);

  // camera
  camera = new THREE.PerspectiveCamera(40, window.innerWidth / window.innerHeight, 1, 10000);
  camera.position.set(20, 20, 20);

  // controls
  controls = new OrbitControls(camera, renderer.domElement);

  // ambient
  scene.add(new THREE.AmbientLight(0x222222));
  scene.background = new THREE.Color("#aaaaaa")
  // light
  const light = new THREE.DirectionalLight(0xffffff, 2);
  light.position.set(20, 20, 0);
  scene.add(light);


  const light1 = new THREE.AmbientLight(0x404040, 1); // soft white light
  scene.add(light1);

  // axes
  scene.add(new THREE.AxesHelper(20));

  // Sphere
  const geometry = new THREE.SphereGeometry(3, 6, 8);
  geometry.translate(0, 5, 0)
  const material = new THREE.MeshStandardNodeMaterial({
    color: 0x00ffff,
    flatShading: true,


  });

  material.stencilWrite = true;
  material.stencilRef = 1;
  material.stencilFunc = THREE.EqualStencilFunc;

  // Plane
  mesh = new THREE.Mesh(geometry, material);
  scene.add(mesh);


  const planegeo = new THREE.PlaneGeometry(5, 5, 2, 2)
  planegeo.translate(0, 5, 3)
  const planeMat = new THREE.MeshStandardNodeMaterial({ side: THREE.DoubleSide })

  planeMat.colorWrite = true;
  planeMat.depthWrite = false;
 ...