webgl+canvas生成三维线几何螺旋图形效果代码-html代码-BFW代码库

webgl+canvas生成三维线几何螺旋图形效果代码

代码语言：html

所属分类：三维

代码描述：webgl+canvas生成三维线几何螺旋图形效果代码

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 {
  margin: 0;
  overflow: hidden;
}
canvas {
  
  width: 100vw;
  height: 100vh;
}
</style>



</head>

<body  >
  <script type="text/fragment" id="vertShader">#version 300 es
  in vec3 position;
  
  uniform mat4 u_viewMatrix;
  uniform mat4 u_modelMatrix;
  uniform mat4 u_modelViewMatrix;
  uniform mat4 u_projectionMatrix;
  uniform mat3 u_normalMatrix;
  
  out vec3 vNormal;
  out vec3 vPosition;
  out vec3 vWorldPosition;
  out vec2 vUV;
  
  void main() {
    vec4 camPos = u_projectionMatrix * u_modelViewMatrix * vec4(position, 1.0);
    
    gl_Position = camPos;
    
    vWorldPosition = (u_modelMatrix * vec4(0,0,0, 1.0)).xyz;
    vPosition = (u_modelMatrix * vec4(position, 1.0)).xyz;
  }
</script>
<script type="text/fragment" id="fragShader">#version 300 es
  precision highp float;
  
  in vec3 vNormal;
  in vec2 vUV;
  in vec4 camPos;
  in vec3 vPosition;
  in vec3 vWorldPosition;
  
  out vec4 colour;
  
  void main() {
    colour = vec4(1,1,1,1);
  }
</script>

  
      <script type="module">
import {
Obj,
TransformFeedback,
Renderer,
Program,
Mesh,
Uniform,
PointCloud,
GeometryAttribute,
Camera,
Plane,
Texture,
Geometry,
DollyCamera } from
"https://cdn.skypack.dev/wtc-gl@1.0.0-beta.47";

import { Vec2, Vec3, Mat4 } from "https://cdn.skypack.dev/wtc-math@1.0.13";

console.clear();

const d = new Vec2(window.innerWidth, window.innerHeight);
d.update = function () {
  uniforms.u_resolution.value = this.array;
  renderer.dimensions = this;
  camera.perspective({ aspect: gl.canvas.width / gl.canvas.height });
  return this;
}.bind(d);
window.addEventListener('resize', () => d.reset(window.innerWidth, window.innerHeight).update());

// Uniforms
const uniforms = {
  u_time: new Uniform({ name: 'time', value: 0 }),
  u_resolution: new Uniform({ name: 'time', value: d.array }) };


// Renderer
const renderer = new Renderer({ width: d.width, height: d.height, antialias: true });
const { gl } = renderer;
gl.clearColor(0, 0, 0, 1);
document.body.appendChild(gl.canvas);

// Camera
const camera = new DollyCamera();
camera.target.reset(0, 2, 0);
camera.setPosition(0, 10., 10.);
camera.fov = 45;
camera.perspective({ aspect: gl.canvas.width / gl.canvas.height });

// Geometry, shaders and mesh
const vertex = document.getElementById('vertShader').innerText;
const fragment.........完整代码请登录后点击上方下载按钮下载查看