Cesium 与 Babylon.js 可视化 glsl 特效篇（四十六）
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， 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 =
- `
- // trixelized
- #ifdef GL_ES
- precision mediump float;
- #endif
- vec2 resolution = vec2(1.0,1.0);
- varying vec2 vUv;
- uniform float time;
- mat2 rotate2d(float _angle){
- return mat2(cos(_angle),-sin(_angle),
- sin(_angle),cos(_angle));
- }
- floathash(infloat n)
- {
- return fract(sin(n)*43758.5453123);
- }
- floathash (in vec2 st) {
- return fract(sin(dot(st.xy,
- vec2(12.9898,78.233))) * 43758.5453123);
- }
- floatnoise (in vec2 st) {
- vec2 i = floor(st);
- vec2 f = fract(st);
- float a = hash(i);
- float b = hash(i + vec2(1.0, 0.0));
- float c = hash(i + vec2(0.0, 1.0));
