Cesium 与 Babylon.js 可视化 glsl 特效篇（六）

我决定不从Babylonjs 基础来讲了 直接整合cesium与babylonjs可视化来讲

我整合一个类库 后续不断更新中

npm i @haibalai/cesium-babylonjs

初始化cesium-babylonjs 类库， viewer是cesium的viewer对象

import { BabylonMapManager } from “@haibalai/cesium-babylonjs”;
 BabylonMapManager.init(viewer);

添加特效

import { BabylonMapManager } from “@haibalai/cesium-babylonjs”;
 const fragmentShader = `
 uniform float ratio;
 float PI = 3.1415926;
 uniform float iTime;
 const vec2 iResolution = vec2(1.0,1.0);
 varying vec2 vUv;
 voidmain() {
 vec2 p = (vUv - 0.5) * 2.0;
 float tau = PI * 2.0;
 float a = atan(p.x,p.y);
 float r = length§*0.75;
 vec2 uv = vec2(a/tau,r);
 //get the color
 float xCol = (uv.x - (iTime / 3.0)) * 3.0;
 xCol = mod(xCol, 3.0);
 vec3 horColour = vec3(0.25, 0.25, 0.25);
 if (xCol < 1.0) {
 horColour.r += 1.0 - xCol;
 horColour.g += xCol;
 }
 elseif (xCol < 2.0) {
 xCol -= 1.0;
 horColour.g += 1.0 - xCol;
 horColour.b += xCol;
 }
 else {

Cesium 与 Babylon.js 可视化 glsl 特效篇（六） － 小专栏