JSFiddle - React, Tailwind, and code Playground

by navinleon

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/109/three.min.js"></script>
<script id="vertexShader" type="x-shader/x-vertex">
  void main() {
    gl_Position =   projectionMatrix * 
                    modelViewMatrix * 
                    vec4(position,1.0);
  }
</script>

<script id="fragmentShader" type="x-shader/x-fragment">
  uniform sampler2D texture1;
  const vec2  size = vec2(1024, 512);
  
  void main() {
    gl_FragColor = texture2D(texture1,gl_FragCoord.xy/size.xy); 
  }
</script>
<canvas id="c"></canvas>

CSS

body {
  margin: 0;
}
#c {
  width: 100vw;
  height: 100vh;
  display: block;
}

JavaScript

function main() {
  // Uniform texture setting
  const uniforms = {
    texture1: { type: "t", value: new THREE.TextureLoader().load( "https://threejsfundamentals.org/threejs/resources/images/wall.jpg" ) }
  };
  // Material by shader
   const myMaterial = new THREE.ShaderMaterial({
        uniforms: uniforms,
        vertexShader: document.getElementById('vertexShader').textContent,
        fragmentShader: document.getElementById('fragmentShader').textContent
      });
  const canvas = document.querySelector('#c');
  const renderer = new THREE.WebGLRenderer({canvas});

  const fov = 75;
  const aspect = 2;  // the canvas default
  const near = 0.1;
  const far = 5;
  const camera = new THREE.PerspectiveCamera(fov, aspect, near, far);
  camera.position.z = 2;

  const scene = new THREE.Scene();

  const boxWidth = 1;
  const boxHeight = 1;
  const boxDepth = 1;
  		 var geometry=new THREE.SphereGeometry(0.4, 100, 100);
//  geometry = new THREE.BoxGeometry(boxWidth, boxHeight, boxDepth);

  const cubes = [];  // just an array we can use to rotate the cubes
  
  const cube = new THREE.Mesh(geometry, myMaterial);
  scene.add(cube);
  cubes.push(cube);  // add to our list of cubes to rotate

  function resizeRendererToDisplaySize(renderer) {
    const canvas = renderer.domElement;
    const width = canvas.clientWidth;
    const height = canvas.clientHeight;
    const needResize = canvas.width !== width || canvas.height !== height;
    if (needResize) {
      renderer.setSize(width, height, false);
    }
    return needResize;
  }

  function render(time) {
    time *= 0.001;
    
    if (resizeRendererToDisplaySize(renderer)) {
      const canvas = renderer.domElement;
      camera.aspect = canvas.clientWidth / canvas.clientHeight;
      camera.updateProjectionMatrix();
    }

    cubes.forEach((cube, ndx) => {
      const speed = .2 + ndx * .1;
      const rot = time * speed;
      
      
      //cube.rotation.x = rot;
    //  cube.rotation.y = rot;      
    });
 ...