Mapbox 与 Babylon.js 可视化 glsl 特效篇（七）

我决定不从Babylonjs 基础来讲了 直接整合mapbox与babylonjs可视化来讲

我整合一个类库 后续不断更新中

npm i @haibalai/mapbox-babylonjs

初始化mapbox-babylonjs 类库， map 是mapbox.gl 的map 对象

import { BabylonMapManager } from “@haibalai/mapbox-babylonjs”;
BabylonMapManager.init(map);

添加特效

import { BabylonMapManager } from “@haibalai/mapbox-babylonjs”;
const fragmentShader = `
constfloat ratio = 1.0;
float PI = 3.1415926;
uniform float iTime;
const vec2 iResolution = vec2(1.0,1.0);
varying vec2 vUv;
vec2 rotate(vec2 p, float rad) {
mat2 m = mat2(cos(rad), sin(rad), -sin(rad), cos(rad));
return m * p;
}
vec2 translate(vec2 p, vec2 diff) {
return p - diff;
}
vec2 scale(vec2 p, float r) {
return p*r;
}
floatcircle(float pre, vec2 p, float r1, float r2, float power) {
float leng = length§;
float d = min(abs(leng-r1), abs(leng-r2));
if (r1<leng && leng<r2) pre /= exp(d)/r2;
float res = power / d;
return clamp(pre + res, 0.0, 1.0);
}
floatrectangle(float pre, vec2 p, vec2 half1, vec2 half2, float power) {
p = abs§;
if ((half1.x<p.x || half1
Mapbox 与 Babylon.js 可视化 glsl 特效篇（七） － 小专栏