Cesium 与 Babylon.js 可视化 glsl 特效篇（四）
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， map 是cesium 的viewer对象
- import { BabylonMapManager } from "@haibalai/cesium-babylonjs";
- BabylonMapManager.init(map);
添加特效
- import { BabylonMapManager } from "@haibalai/cesium-babylonjs";
- const fragmentShader = `
- uniform float ratio;
- float PI2 = 6.28318530718;
- float PI = 3.1416;
- uniform float iTime;
- const vec2 iResolution = vec2(1.0,1.0);
- varying vec2 vUv;
- floatvorocloud(vec2 p){
- float f = 0.0;
- vec2 pp = cos(vec2(p.x * 14.0, (16.0 * p.y + cos(floor(p.x * 30.0)) + iTime * PI2)) );
- p = cos(p * 12.1 + pp * 10.0 + 0.5 * cos(pp.x * 10.0));
- vec2 pts[4];
- pts[0] = vec2(0.5, 0.6);
- pts[1] = vec2(-0.4, 0.4);
- pts[2] = vec2(0.2, -0.7);
- pts[3] = vec2(-0.3, -0.4);
- float d = 5.0;
- for(int i = 0; i < 4; i++){
- pts[i].x += 0.03 * cos(float(i)) + p.x;
- pts[i].y += 0.03 * sin(float(i)) + p.y;
- d = min(d, distance(pts[i], pp));
- }
- f = 2.0 * pow(1.0 - 0.3 * d, 13.0);
