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 iTime;
- const vec2 iResolution = vec2(1.0,1.0);
- varying vec2 vUv;
- float time;
- floathash( float n )
- {
- return fract(sin(n)*43758.5453);
- }
- floatnoise( in vec2 x )
- {
- vec2 p = floor(x);
- vec2 f = fract(x);
- f = f*f*(3.0-2.0*f);
- float n = p.x + p.y*57.0;
- float res = mix(mix( hash(n+ 0.0), hash(n+ 1.0),f.x),
- mix( hash(n+ 57.0), hash(n+ 58.0),f.x),f.y);
- return res;
- }
- floatSmokeParticle(vec2 loc, vec2 pos, float size, float rnd)
- {
- loc = loc-pos;
- float d = dot(loc, loc)/size;
- if (d > 1.0) return 0.0;
- float r= time*rnd*1.85;
- float si = sin(r);
- float co = cos(r);
- d = noise(hash(rnd*828.0)*83.1+mat2(co, si, -si, co)*loc.xy*2./(pos.y*.16)) * pow((1.-d), 3.)*.7;
- return d;
- }
- floatRockParticle(vec2 loc, vec2 pos, float size, float rnd)
- {
- loc = loc-pos;
- float d = dot(loc, loc)/size;
- if (d > 1.0) return 0.0;
- float r= time*1.5 * (rnd);
- float si = sin(r);
Arcgis 与 Claygl 可视化 glsl 特效篇(二十八) - 小专栏
标签:glsl,loc,1.0,float,pos,Claygl,Arcgis,vec2,claygl From: https://www.cnblogs.com/haibalai/p/17349649.html