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!