Cesium 与 Babylon.js 可视化 glsl 特效篇（十九）

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 iTime;
 const vec2 iResolution = vec2(1.0,1.0);
 varying vec2 iMouse;
 varying vec2 vUv;
 #define PI 3.1415926
 #define NUM 20.
 #define PALETTE vec3(.0, 1.4, 2.)+1.5
 #define COLORED
 #define MIRROR
 //#define ROTATE
 #define ROT_OFST
 #define TRIANGLE_NOISE
 //#define SHOW_TRIANGLE_NOISE_ONLY
 mat2 mm2(infloat a){float c = cos(a), s = sin(a);return mat2(c,-s,s,c);}
 floattri(infloat x){return abs(fract(x)-.5);}
 vec2 tri2(in vec2 p){return vec2(tri(p.x+tri(p.y2.)),tri(p.y+tri(p.x2.)));}
 mat2 m2 = mat2( 0.970, 0.242, -0.242, 0.970 );
 floattriangleNoise(in vec2 p)
 {
 float z=1.5;
 float z2=1.5;
 float rz = 0.;
 vec2 bp = p;
 for (float i=0.; i<=3.; i++ )
 {
 vec2 dg = tri2(bp2.).8;
 dg = mm2(iTime.3);
 p += dg/z2;
 bp *= 1.6;
 z2 *= .6;
 z *= 1.8;
 p *= 1.2;

Cesium 与 Babylon.js 可视化 glsl 特效篇（十九） － 小专栏