three+TorusKnot实现三维逼真光线反射效果的玻璃圆柱鱼儿游动动画效果代码-html代码-BFW代码库

three+TorusKnot实现三维逼真光线反射效果的玻璃圆柱鱼儿游动动画效果代码

代码语言：html

所属分类：三维

代码描述：three+TorusKnot实现三维逼真光线反射效果的玻璃圆柱鱼儿游动动画效果代码

代码标签： three TorusKnot 三维逼真光线反射玻璃圆柱鱼儿游动动画

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">
  

  
  
<style>
canvas {
  display: block;
  width: 100%;
  height: 100vh;
  cursor: -webkit-grab;
  cursor: grab;
}
</style>

  


</head>

<body >
  <!-- 
  eel and koi  
-->

<script async type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/es-module-shims.1.5.1.js" crossorigin="anonymous"></script>
<script type="importmap">
  {
    "imports": {
      "three": "//repo.bfw.wiki/bfwrepo/js/module/three/build/146/three.module.js",
      "three/addons/": "//repo.bfw.wiki/bfwrepo/js/module/three/examples/jsm/",
      "postprocessing": "//repo.bfw.wiki/bfwrepo/js/module/postprocessing.esm.js"
    }
  }
</script>

  
      <script type="module">
import * as THREE from 'three'
import { OrbitControls } from 'three/addons/controls/OrbitControls.js'
import { TorusKnot } from 'three/addons/curves/CurveExtras.js'
import { EffectComposer, EffectPass, RenderPass, GodRaysEffect } from 'postprocessing'

// ---
// params
// ---

const TK_RADIUS = 1.0 // torus knot radius
const TK_TUBE_RADIUS = 0.3 // torus knot tube (the eel) radius
const COIL_TUBE_RADIUS = 0.2 // coil tube (the koi) radius 
const TK_POINTS_COUNT = 200 // samples count of torus knot curve 
const TURNS_COUNT = 20.0 // turns count of coil tube
const RAY_COLOR = 'cyan' // scattering color (for tyndall effect)

// credit: Klara Kulikova at unsplash - https://unsplash.com/photos/4YNmgh2PERc
const ALBEDO0_URL = '//repo.bfw.wiki/bfwrepo/image/636d9d021f5a3.png?x-oss-process=image/auto-orient,1/resize,m_fill,w_600,h_400,/quality,q_90'

// credit: Max Ducourneau at unsplash - https://unsplash.com/photos/h_4fe8fmb1E
const ALBEDO1_URL = '//repo.bfw.wiki/bfwrepo/image/636d9bc4a435d.png'

// credit: mrdoob - three.js/examples/textures/
const ENV_URL = '//repo.bfw.wiki/bfwrepo/image/636d9baf40a77.png'

// ----
// main
// ----

const renderer = new THREE.WebGLRenderer({
  powerPreference: 'high-performance',
  antialias: false,
  stencil: false,
  depth: false
})
const scene = new THREE.Scene()
const camera = new THREE.PerspectiveCamera(75, 2, 0.1, 100)
const controls = new OrbitControls(camera, renderer.domElement)

camera.position.set(0, 2, 4)
controls.target.set(0, 2, 0)
controls.enableDamping = true
controls.autoRotate = true
renderer.shadowMap.enabled = true
renderer.toneMapping = THREE.ACESFilmicToneMapping
renderer.toneMappingExposure = 1.0
renderer.outputEncoding = THREE.sRGBEncoding

scene.background = new THREE.Color('white')

new THREE.TextureLoader().load(ENV_URL, (tex) => {
  tex.mapping = THREE.EquirectangularReflectionMapping
  tex.encoding = THREE.sRGBEncoding
  const rt = new THREE.PMREMGenerator(renderer).fromEquirectangular(tex)
  scene.environment = rt.texture
})

const light = new THREE.DirectionalLight()
light.position.set(0, 3, 0)
light.castShadow = true
scene.add(light)
scene.add(new THREE.AmbientLight())

const tk = new TorusKnot(TK_RADIUS)

// ---
// eel
// ---

function create_eel(tk, tube_radius, points_count) {
  const origins = tk.getSpacedPoints(points_count - 1)
  const curve = new THREE.CurvePath()
  const points = []
  for (let i = 0; i <.........完整代码请登录后点击上方下载按钮下载查看