我决定不从claygl基础来讲了 直接整合arcgis与claygl可视化来讲
关于整合clagyl 有兴趣看我这篇文章 arcgis 与 claygl 引擎结合做地图可视化
我整合一个类库 后续不断更新中
- npm i @haibalai/gismap4-claygl
初始化gismap4-claygl 类库， view是arcgis的sceneView对象
- import { ClayglMapManager} from "@haibalai/gismap4-claygl";
- ClayglMapManager.init(view);
添加特效
- import { ClayglMapManager} from "@haibalai/gismap4-claygl";
- import * as clay from "claygl";
- const fragmentShader =`
- // global remix - Del 30/10/2019
- #ifdef GL_ES
- precision highp float;
- #endif
- #extension GL_OES_standard_derivatives : enable
- vec2 resolution = vec2(1.0,1.0);
- uniform float time;
- uniform vec2 mouse;
- varying vec2 vUv;
- floatsnow(vec2 uv,float scale)
- {
- float _t = time*1.1;
- uv.x+=_t/scale;
- uv*=scale;vec2 s=floor(uv),f=fract(uv),p;float k=40.,d;
- p=.5+.35*sin(11.*fract(sin((s+p+scale)*mat2(7,3,6,5))*5.))-f;d=length(p);k=min(d,k);
- k=smoothstep(0.,k,sin(f.x+f.y)*0.003);
- return k;
- }
- voidmain(void){
- vec2 uv = (vUv -0.5) * 2.0 ;
- //float dd = 1.0-length(uv);
- uv.x += sin(time*0.28);
- uv.y += sin(uv.x*1.4)*0.2;
- uv.x *= 0.09;
- float c=snow(uv,30.)*.3;
- c+=snow(uv,20.)*.5;
- Arcgis 与 Claygl 可视化 glsl 特效篇（三十八） － 小专栏