three实现三维空间跟随鼠标的眼睛效果代码-html代码-BFW代码库

three实现三维空间跟随鼠标的眼睛效果代码

代码语言：html

所属分类：三维

代码描述：three实现三维空间跟随鼠标的眼睛效果代码，眼睛永远盯着鼠标。

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>
body{
  overflow: hidden;
  margin: 0;
}
</style>


  
</head>

<body translate="no">
  <script type="importmap">
  {
    "imports": {
      "three": "//repo.bfw.wiki/bfwrepo/js/module/three/build/160/three.module.js",
      "three/addons/": "//repo.bfw.wiki/bfwrepo/js/module/three/examples/160/jsm/"
    }
  }
</script>
  
  

      <script  type="module">
// https://discourse.threejs.org/t/make-only-eyes-move-with-look-at-the-mouse-cursor/61166/2
import * as THREE from 'three';
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';

class EyeBall extends THREE.Mesh {
  constructor() {
    let g = new THREE.SphereGeometry(1, 64, 32).rotateX(Math.PI * 0.5);
    let m = new THREE.MeshLambertMaterial({
      onBeforeCompile: shader => {
        shader.vertexShader = `
          varying vec3 vPos;
          ${shader.vertexShader}
        `.replace(
        `#include <begin_vertex>`,
        `#include <begin_vertex>
            vPos = position;
          `);

        console.log(shader.vertexShader);
        shader.fragmentShader = `
          varying vec3 vPos;
          ${shader.fragmentShader}
        `.replace(
        `vec4 diffuseColor = vec4( diffuse, opacity );`,
        `vec4 diffuseColor = vec4( diffuse, opacity );
          
            vec3 dir = vec3(0, 0, 1);
            
            vec3 nPos = normalize(vPos);
            
            float dotProduct = dot(dir, nPos);
            
            float iris = smoothstep(0.75, 0.8, dotProduct);
            diffuseColor.rgb = mix(diffuseColor.rgb, vec3(0, 0, 1), iris);
            
            float pupil = smoothstep(0.95, 0.97, dotProduct);
            diffuseColor.rgb = mix(diffuseColor.rgb, vec3(0), pupil);
          `);

        console.log(shader.fragmentShader);
      } });

    super(g, m);
  }}


class Eyes extends THREE.Group {
  constructor(camera, mouse) {
    super();
    this.camera = camera;

    this.plane = new THREE.Plane();
 .........完整代码请登录后点击上方下载按钮下载查看