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 = `
#ifdef GL_ES
precision highp float;
#endif
uniform float time;
vec2 resolution = vec2(1.0,1.0);
varying vec2 vUv;
#define NUM_PARTICLES 50.
#define iTime time
#define iResolution resolution
#define R iResolution.xy
floatCir (vec2 uv, float r, bool blur) {
float a = blur ? 0.01 : 0.;
float b = blur ? 0.13 : 5./R.y;
return smoothstep(a, b, length(uv)-r);
}
voidmain( void ) {
float intensity = .2;
vec2 fragPosition = (vUv -0.5) * 2.0 ;
for (float i = 0.; i < NUM_PARTICLES; i++) {
float angle = i / NUM_PARTICLES * 2.0 * 3.14159;
float rotatedAngle = angle + time * 1.0;
vec2 xy = vec2(cos(rotatedAngle), sin(rotatedAngle)) *
Arcgis 与 Claygl 可视化 glsl 特效篇（三十五） － 小专栏
