Arcgis 与 Claygl 可视化 glsl 特效篇（三十四）
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 = `
- uniform float time;
- vec2 iResolution = vec2(1.0,1.0);
- varying vec2 vUv;
- #define AA 1
- #define HEIGHT 12.
- vec3 _col;
- #define iTime time
- #define PI 3.14159
- #define TAU 6.28318
- vec3 spunk(vec2 uv)
- {
- vec3 col = vec3(.55,0.35,1.225);
- uv.x += sin(0.2+uv.y*0.8)*0.5;
- uv.x = uv.x*50.0;
- float dx = fract(uv.x);
- uv.x = floor(uv.x);
- float t = iTime*0.4;
- uv.y *= 0.15;
- float o=sin(uv.x*215.4);
- float s=cos(uv.x*33.1)*.3 +.7;
- float trail = mix(95.0,35.0,s);
- float yv = fract(uv.y + t*s + o) * trail;
- yv = 1.0/yv;
- yv = smoothstep(0.0,1.0,yv*yv);
- yv = sin(yv*PI)*(s*5.0);
- float d2 = sin(dx*PI);
- yv *= d2*d2;
- col = col*yv;
- return col;
- }
- voidmain(void)
- {
- float an = sin(iTime*64564.8);
- //float dist = 36.0+sin(iTime)*7.0;
- float dist = 200.0;
- vec3 ro = vec3( dist*cos(an), sin(iTime*0.75)*14.0, dist*sin(an) );
- vec3 ta = vec3( 0.0, 0.0, 0.0 );
- // camera matrix
- vec3 ww = normalize( ta - ro );
- vec3 uu = normalize( cross(ww,vec3(0.0,1.0,0.0) ) );
- vec3 vv = normalize( cross(uu,ww));
- vec3 tot = vec3(0.0);
- vec2 ppp = (-iResolution.xy + 2.*(gl_FragCoord.xy))/iResolution.y;
- vec3 bbk = spunk(vUv.xy);
- //vec2 p = (-iResolution.xy + 2.0*gl_FragCoord.xy)/iResolution.y;
- vec2 p = (vUv -0.5) * 2.0 ;
