three+cannon模拟三维小球搅拌物理反应动画效果代码-html代码-BFW代码库

代码语言：html
所属分类：三维
代码描述：three+cannon模拟三维小球搅拌物理反应动画效果代码，按住空格键，鼠标点击增加小球。
下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开
<!DOCTYPE html>
<html lang="en" >

<head>

  <meta charset="UTF-8">
  

  <meta name="viewport" content="width=device-width, initial-scale=1.0">

  <link href="https://fonts.googleapis.com/css?family=Ropa+Sans&display=swap" rel="stylesheet">

  <!-- PRELOAD IMAGES -->
  <link rel="preload" as="image"
    href="//repo.bfw.wiki/bfwrepo/images/threecaizhi/ambientOcclusion.avif" crossorigin>
  <link rel="preload" as="image" href="//repo.bfw.wiki/bfwrepo/images/threecaizhi/height.avif"
    crossorigin>
  <link rel="preload" as="image" href="//repo.bfw.wiki/bfwrepo/images/threecaizhi/roughness.avif"
    crossorigin>
  <link rel="preload" as="image" href="//repo.bfw.wiki/bfwrepo/images/threecaizhi/normal.avif"
    crossorigin>
  <link rel="preload" as="image" href="//repo.bfw.wiki/bfwrepo/images/threecaizhi/basecolor.avif"
    crossorigin>


  
  
<style>
html {
  font-family: "Ropa Sans", Arial, sans-serif;
  -ms-text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

*,
*::after,
*::before {
  box-sizing: border-box;
}

h1 {
  margin: 0;
  padding: 0;
}

body {
  padding: 0;
  margin: 0;
  background-color: #341472;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  font-size: 16px;
  color: #fff;
  text-decoration: none;
  padding: 10px;
  transition: background-color 0.3s, color 0.3s;
}

a:hover {
  color: #341472;
  background-color: #fff;
}

#credits {
  margin: 0;
  position: absolute;
  z-index: 1;
  bottom: 10px;
  width: 100%;
  left: 20px;
}

#instructions {
  position: absolute;
  color: #fff;
  z-index: 1;
  top: 0;
  left: 100px;
}

.stats {
  position: absolute;
  top: 0;
  z-index: 0;
  pointer-events: none;
}
</style>


</head>

<body>
  <div class="stats">
</div>

<p id="instructions"> 按住空格键，鼠标点击增加小球</p>

<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/Stats-16.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/three.144.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/OrbitControls.144.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/TransformControls.js"></script>

      <script type="module">
import { Pane } from "//repo.bfw.wiki/bfwrepo/js/module/tweakpane.3.0.2.js";
import * as CANNON from "//repo.bfw.wiki/bfwrepo/js/module/cannon-es.0.20.0.js";

const radians = degrees => {
  return degrees * Math.PI / 180;
};

const hexToRgb = hex => {
  const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);

  return result ?
  {
    r: parseInt(result[1], 16) / 255,
    g: parseInt(result[2], 16) / 255,
    b: parseInt(result[3], 16) / 255 } :

  null;
};

const rgbToHex = (s) =>
s.match(/[0-9]+/g).reduce((a, b) => a + (b | 256).toString(16).slice(1), "#");

const rInterval = function (callback, delay) {
  const dateNow = Date.now;
  const requestAnimation = window.requestAnimationFrame;
  let start = dateNow();
  let stop;

  const intervalFunc = function () {
    dateNow() - start < delay || (start += delay, callback());
    stop || requestAnimation(intervalFunc);
  };

  requestAnimation(intervalFunc);

  return {
    clear: function () {
      stop = 1;
    } };

};

class App {
  init() {
    this.setup();
    this.createScene();
    this.createCamera();
    this.addCameraControls();
    this.addAmbientLight();
    this.addDirectionalLight();
    this.addPhysicsWorld();
    this.addPointLight();
    this.addPointerDebugger();
    this.addFloor();
    this.addFloorGrid();
    this.addPropeller();
    this.addInnerBoudaries();
    this.addAxisHelper();
    this.addStatsMonitor();
    this.addWindowListeners();
    this.addGuiControls();
    this.addInitialSpheres();
    this.animate();
  }

  addGuiControls() {
    this.pane = new Pane();
    this.guiSettings = this.pane.addFolder({
      title: "Settings",
      expanded: false });


    this.guiSettings.addInput(this.colors, "background").on("change", evt => {
      this.floor.material.color = hexToRgb(evt.value);
      document.body.style.backgroundColor = evt.value;
      this.scene.background = new Color(evt.value);
    });

    this.guiSettings.addInput(this.colors, "ring").on("change", evt => {
      this.ringMesh.material.color = hexToRgb(evt.value);
    });

    this.guiSettings.addInput(this.colors, "propeller").on("change", evt => {
      this.meshes.propeller.material.color = hexToRgb(evt.value);
    });

    this.guiSettings.
    addInput(this.colors, "leftSideSphere").
    on("change", evt => {
      this.meshes.sphereLeftSideMaterial.color = hexToRgb(evt.value);
    });

    this.guiSettings.
    addInput(this.colors, "rightSideSphere").
    on("change", evt => {
      this.meshes.sphereRightSideMaterial.color = hexToRgb(evt.value);
    });

    this.guiSettings.
    addInput(this.colors, "displayGrid").
    on("change", evt => {
      if (evt.value) {
        this.scene.add(this.grid);
      } else {
        this.scene.remove(this.grid);
      }
    });
  }

  addPointerDebugger() {
    const material = new THREE.MeshStandardMaterial({ color: 0xff0000 });
    const geometry = new THREE.SphereGeometry(0.01, 16, 16);

    this.pointerDebugger = new THREE.Mesh(geometry, material);

    this.scene.add(this.pointerDebugger);
  }

  addPhysicsWorld() {
    this.world = new CANNON.World();
    this.world.gravity.set(0, -40, 0.5);
    this.world.broadphase = new CANNON.NaiveBroadphase();
    this.world.solver.iterations = 20;
    this.world.defaultContactMaterial.contactEquationStiffness = 1e6;
    this.world.defaultContactMaterial.contactEquationRelaxation = 10;
    this.world.allowSleep = true;
  }

  setup() {
    this.velocity = 0.015;
    this.raycaster = new THREE.Raycaster();
    this.mouse3D = new THREE.Vector2();
    this.width = window.innerWidth;
    this.height = window.innerHeight;
    this.debug = false;

    this.colors = {
      background: rgbToHex(
      window.getComputedStyle(document.body).backgroundColor),

      floor: rgbToHex(window.getComputedStyle(document.body).backgroundColor),
      box: "#ffffff",
      leftSideSphere: "#ff0f40",
      rightSideSphere: "#ffffff",
      ambientLight: "#ffffff",
      directionalLight: "#ffffff",
      ring: "#ffaf00",
      propeller: "#faecec",
      displayGrid: true };


    this.sphereConfig = {
      radius: 0.18,
      width: 32,
      height: 32 };


    this.meshes = {
      container: new THREE.Object3D(),
      spheres: [],
      propeller: null,
      material: new THREE.MeshStandardMaterial({
        color: this.colors.propeller,
        metalness: 0.1,
        roughness: 0.1 }),

      sphereBaseMaterial: new THREE.MeshPhysicalMaterial({ color: "#ff00ff" }),
      sphereLeftSideMaterial: new THREE.MeshPhysicalMaterial({
        color: this.colors.leftSideSphere,
        metalness: 0.1,
        emissive: 0x0,
        roughness: 0.1 }),

      sphereRightSideMaterial: new THREE.MeshPhysicalMaterial({
        color: this.colors.rightSideSphere,
        metalness: 0.1,
        emissive: 0x0,
        roughness: 0.2 }),

      sphereConfig: {
        geometry: new THREE.SphereGeometry(
        this.sphereConfig.radius,
        this.sphereConfig.width,
        this.sphereConfig.height),

        halfsphere: new THREE.SphereGeometry(
        this.sphereConfig.radius,
        16,
        16,
        0,
        3.15) } };




    this.meshes.sphereLeftSideMaterial.clearcoatRoughness = 0;
    this.meshes.sphereLeftSideMaterial.clearcoat = 0;
    this.meshes.sphereLeftSideMaterial.reflectivity = 1;

    this.meshes.sphereRightSideMaterial.clearcoatRoughness = 0;
    this.meshes.sphereRightSideMaterial.clearcoat = 0;
    this.meshes.sphereRightSideMaterial.reflectivity = 1;

    window.addEventListener("mousemove", this.onMouseMove.bind(this), {
      passive: true });

    window.addEventListener("keydown", this.onKeydown.bind(this), {
      passive: true });

    window.addEventListener("keyup", this.onKeyup.bind(this), {
      passive: true });

  }

  createScene() {
    this.scene = new THREE.Scene();
    this.scene.background = new THREE.Color(this.colors.background);
    this.renderer = new THREE.WebGLRenderer({ antialias: true });
    this.renderer.setSize(this.width, this.height);

    this.renderer.shadowMap.enabled = true;
    this.renderer.shadowMap.type = THREE.PCFSoftShadowMap;

    document.body.appendChild(this.renderer.domElement);
  }

  addAxisHelper() {
    const axesHelper = new THREE.AxesHelper(5);

    this.debug && this.scene.add(axesHelper);
  }

  createCamera() {
    this.camera = new THREE.PerspectiveCamera(
    20,
    this.width / this.height,
    1,
    1000);

    this.camera.position.set(0, 25, 20);

    this.scene.add(this.camera);
  }

  addCameraControls() {
    this.orbitControl = new THREE.OrbitControls(
    this.camera,
    this.renderer.domElement);

    this.orbitControl.enableDamping = true;
    this.orbitControl.dampingFactor = 0.02;
    this.orbitControl.maxDistance = 60;
    this.orbitControl.minDistance = 30;
    this.orbitControl.minPolarAngle = THREE.MathUtils.degToRad(0);
    this.orbitControl.maxPolarAngle = THREE.MathUtils.degToRad(70);
    this.orbitControl.enablePan = !this.cameraAutoAnimate;
    this.orbitControl.enableRotate = !this.cameraAutoAnimate;
    this.orbitControl.enableZoom = !this.cameraAutoAnimate;
    this.orbitControl.saveState();

    document.body.style.cursor = "-moz-grabg";
    document.body.style.cursor = "-webkit-grab";

    this.orbitControl.addEventListener("start", () => {
      requestAnimationFrame(() => {
        document.body.style.cursor = "-moz-grabbing";
        document.body.style.cursor = "-webkit-grabbing";
      });
    });

    this.orbitControl.addEventListener("end", () => {
      requestAnimationFrame(() => {
        document.body.style.cursor = "-moz-grab";
        document.body.style.cursor = "-webkit-grab";
      });
    });
  }

  addAmbientLight() {
    const light = new THREE.AmbientLight(
    { color: this.colors.ambientLight },
    0.5);


    this.scene.add(light);
  }

  addDirectionalLight() {
    const target = new THREE.Object3D();
    this.directionalLight = new THREE.DirectionalLi.........完整代码请登录后点击上方下载按钮下载查看