Arcgis 与 Claygl 可视化 glsl 特效篇（十七）

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 = `
 precision highp float;
 uniform float iTime;
 uniform vec2 iResolution;
 varying vec2 vUv;
 // Rand value between 0 and 1
 floatrand(vec2 p) {
 return fract(sin(dot(p, vec2(12.543,514.123)))4732.12);
 }
 // Value noise
 floatnoise(vec2 p) {
 vec2 f = smoothstep(0.0, 1.0, fract§);
 vec2 i = floor§;
 float a = rand(i);
 float b = rand(i+vec2(1.0,0.0));
 float c = rand(i+vec2(0.0,1.0));
 float d = rand(i+vec2(1.0,1.0));
 return mix(mix(a, b, f.x), mix(c, d, f.x), f.y);
 }
 // Fractal noise
 floatfbm(vec2 p) {
 float a = 0.5;
 float r = 0.0;
 for (int i = 0; i < 8; i++) {
 r += anoise§;
 a = 0.5;
 p = 2.0;
 }
 return r;
 }
 // Lasers originating from a central point
 floatlaser(vec2 p, int num) {
 float r = atan(p.x, p.y);
 float sn = sin(rfloat(num)+iTime);
 float lzr = 0.5+0.5sn;

Arcgis 与 Claygl 可视化 glsl 特效篇（十七） － 小专栏