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Daily Creative Coding

元「30 min. Processing」。毎日、Creative Codingします。

MeshPhongMaterialのテスト

See the Pen MeshPhongMaterial test by aadebdeb (@aadebdeb) on CodePen.

<!DOCTYPE html>
<html lang="ja">
<head>
  <meta charset="utf-8">
  <title>[2017/03/24] MeshPhongMaterial test</title>
  <style>
    body {
      margin: 0;
      overflow: hidden;
    }
  </style>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/stats.js/r16/Stats.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/dat-gui/0.6.3/dat.gui.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/84/three.min.js"></script>
  <script>
    window.onload = function() {
      init();
      render();
    }
    window.onresize = onResize;

    var camera, scene, renderer;
    var stats;
    var controller;
    var torus;
    var rotation;

    function init() {
      rotation = new THREE.Euler();

      initGui();
      initStats();

      initScene();
      initCamera();
      initRenderer();
    }

    function initStats() {
      stats = new Stats();
      stats.setMode(0);
      stats.domElement.style.position = 'absolute';
      stats.domElement.style.left = '0px';
      stats.domElement.style.top = '0px';
      document.body.appendChild(stats.domElement);
    }

    function initGui() {
      controller = new function() {
        this.background = '#cccccc';
        this.torusColor = '#0000ff';
        this.emissive = '#ff0000';
        this.specular = '#0000ff';
        this.shininess = 30;
      };

      gui = new dat.GUI();
      gui.addColor(controller, 'background').onChange(function(e) {
        renderer.setClearColor(e);
      });
      gui.addColor(controller, 'torusColor').onChange(function(e) {
        replaceTorusKnot();
      });
      gui.addColor(controller, 'emissive').onChange(function(e) {
        replaceTorusKnot();
      });
      gui.addColor(controller, 'specular').onChange(function(e) {
        replaceTorusKnot();
      });
      gui.add(controller, 'shininess', 0, 200).onChange(function(e) {
        replaceTorusKnot();
      });
    }

    function initRenderer() {
      renderer = new THREE.WebGLRenderer();
      renderer.setClearColor(new THREE.Color(controller.background));
      renderer.setSize(window.innerWidth, window.innerHeight);
      renderer.shadowMap.enabled = controller.showsShadow;
      document.body.appendChild(renderer.domElement);
    }

    function initCamera() {
      camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000);
      camera.position.set(0, 0, 200);
      camera.lookAt(scene.position);
    }

    function initScene() {
      scene = new THREE.Scene();
      replaceTorusKnot();

      makeSpotLight(-200, 100, 100);
      makeSpotLight(100, -200, 100);
      makeSpotLight(100, 100, -200);

    }

    function makeSpotLight(x, y, z) {
      var spotLight = new THREE.SpotLight(0xffffff);
      spotLight.position.set(x, y, z);
      spotLight.target = torus;
      scene.add(spotLight);
    }

    function replaceTorusKnot() {
      scene.remove(torus);
      torus = new THREE.Mesh(
        new THREE.TorusKnotGeometry(30, 8, 64, 8),
        new THREE.MeshPhongMaterial({
          color: controller.torusColor,
          emissive: controller.emissive,
          specular: controller.specular,
          shininess: controller.shininess,
        })
      );
      torus.position.set(0, 0, 0);
      scene.add(torus);
    }

    function render() {
      rotation.x += 0.01;
      rotation.y += 0.01;
      rotation.z += 0.01;
      torus.rotation.x = rotation.x;
      torus.rotation.y = rotation.y;
      torus.rotation.z = rotation.z;
      stats.update();
      renderer.render(scene, camera);
      requestAnimationFrame(render);
    }

    function onResize() {
      camera.aspect = window.innerWidth / window.innerHeight;
      camera.updateProjectionMatrix();
      renderer.setSize(window.innerWidth, window.innerHeight);
    }

  </script>
</head>
<body>
</body>
</html>
f:id:aa_debdeb:20170322085408p:plain