Arcgis 与 Claygl 可视化 glsl 特效篇（二十八）

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

初始化gismap4-claygl 类库， view是arcgis的sceneView对象

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);