JSFiddle - React, Tailwind, and code Playground

by ingun37

JavaScript

// Simple three.js example

import * as THREE from "https://threejs.org/build/three.module.js";

var mesh, renderer, scene, camera, controls, light, obj;


init();
animate();

function init() {

    // renderer
    renderer = new THREE.WebGLRenderer();
    renderer.setSize( window.innerWidth, window.innerHeight );
    renderer.setPixelRatio( window.devicePixelRatio );
    document.body.appendChild( renderer.domElement );

    // scene
    scene = new THREE.Scene();
    scene.background = new THREE.Color(0xffffff);
    
    // camera
    camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 10000 );

camera.position.z = 30;

scene.add(new THREE.Mesh(new THREE.SphereBufferGeometry(), new THREE.ShaderMaterial({
  vertexShader: `void main() {
  gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
  }`,
  fragmentShader: `
  uniform highp sampler2DShadow dt;
  void main() {
    float cmp = texture(dt, vec3(0.0, 0.0, gl_FragCoord.z));
    if(0.0 < cmp) {
          
    }
    gl_FragColor = vec4(1.0,0.0,1.0,1.0);
  }
  `,
  uniforms: {
    dt: {value: new THREE.DepthTexture(16,16)}
  }
})))
    
    // ambient
    scene.add( new THREE.AmbientLight( 0x222222 ) );
    
    // light
   	light = new THREE.DirectionalLight( 0xffffff, 1 );
    light.position.set( 20,20, 0 );
    scene.add( light );
    
}


function animate() {

    requestAnimationFrame( animate );
    renderer.render( scene, camera );
}