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);
Cesium 与 Babylon.js 可视化 glsl 特效篇（四） － 小专栏