Parcel Sandbox

by farazshaikh

HTML

<div id="root"></div>
<script type="importmap">
	{
		"imports": {
      "three": "https://unpkg.com/three/build/three.module.js",
		  "three/webgpu": "https://unpkg.com/three/build/three.webgpu.js",
			"three/tsl": "https://unpkg.com/three/build/three.tsl.js",
      "three/addons/": "https://unpkg.com/three/examples/jsm/"
		}
	}
</script>

CSS

body {
  font-family: sans-serif;
  margin: 0;
  background-color: #080808;
}

JavaScript

import * as THREE from "three/webgpu";
import { OrbitControls } from "three/addons/controls/OrbitControls";
import * as TSL from "three/tsl";

class Material extends THREE.MeshStandardNodeMaterial {
  constructor() {
    super()

    this.colorNode = TSL.vec4(1.0, 1.0, 0.0, 1.0)
  }

  build(...props) {
    super.build(...props)
    console.log("Build ")
  }
}

export default function App(root) {
  const scene = new THREE.Scene();
  const camera = new THREE.PerspectiveCamera(
    75,
    window.innerWidth / window.innerHeight,
    0.1,
    1000
  );
  camera.position.x = 2;
  camera.position.y = 2;
  camera.position.z = 2;

   const camera2 = new THREE.PerspectiveCamera(
    75,
    window.innerWidth / window.innerHeight,
    0.1,
    1000
  );
  camera2.position.x = 5;
  camera2.position.y = 5;
  camera2.position.z = 5;
  camera2.lookAt(0,0,0)

  const renderer = new THREE.WebGPURenderer({
    antialias: true,
  });
  renderer.setSize(window.innerWidth, window.innerHeight);
  document.body.appendChild(renderer.domElement);

  const light = new THREE.DirectionalLight();
  light.position.set(5, 5, -5);
  light.intensity = 5;
  scene.add(light);

  const geometry = new THREE.BoxGeometry();
  const material = new Material({ color: "red" });

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

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

  const post = new THREE.PostProcessing(renderer);

  const scenePass = TSL.pass(scene, camera);
  scenePass.setMRT(
    TSL.mrt({
      output: TSL.output,
      diffuseRough: TSL.vec4(TSL.diffuseColor.rgb, TSL.roughness),
    })
  );

  post.outputNode = TSL.vec4(scenePass.getTextureNode("diffuseRough").rgb, 1.0);


  setInterval(() => {
     scenePass.camera =  scenePass.camera === camera ? camera2 : camera;
  }, 500)

  function animate() {
    requestAnimationFrame(animate);

    mesh.rotation.x += 0.01
   ...