包含了昼夜系统，多云，大雨，雪天等等天气，可支持拓展接口，简单易用，实力推荐

简单容易上手的unity天气系统工具，效果不错，消耗有一点大，需要合理的设置，也可以进行二次开发

Unity 完整动态AAA天空和天气系统 Sky and Weather v2.0.3

实现雨雪雾霾等天气，里面有相关pdf教程，使游戏效果更加逼真

unity天空天气系统Enviro - Sky and Weather v2.0.3 所支持的Unity版本：5.6.0 及以上版本 Enviro - The complete dynamic AAA sky and weather solution! Very easy setup: Just drag-and drop into your scene and assign your main camera or use the runtime assignment features. Profile System: Enviro's new profile system makes tweaking your sky as easy as possible. Tweak settings in runtime and save to profile. Load profiles in design and runtime. Create different profiles for different scenes or share your configurations with other user. Day-Night cycle: Enviro supports a realistic day-night cycle. With correct sun and moon positions with full location support with latitude and longitude. You have options to use your system time or let enviro update time based on realtime minutes. Skybox: Enviro includes an advanced fast atmospheric skybox shader to get great looking skies! You got a lot of options to tweak the sky and even can setup funky alien skies!