Mapbox 与 Babylon.js 可视化 glsl 特效篇（十七）

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 = `
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;
}

Mapbox 与 Babylon.js 可视化 glsl 特效篇（十七） － 小专栏