This is a paid asset, but now you can download Farland Skies – Cloudy Crown Pro for FREE, but please remember this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Detail this asset from Unity Store: Original Link
Farland Skies – Cloudy Crown Pro v1.3.2
(Tested with Unity version 2020.3.23f1)
Minimalistic, cartoon style skybox with custom single-pass shader that works as a regular skybox material, avoiding the use of any sphere or mesh.
Customization Demo
Day-Night Cycle Demo
Features:
• Three types of clouds with adjustable colors, height, offset and rotation speed.
• Three types of stars with adjustable tint, twinkling speed and horizon extinction.
• Three types of sun and moon with customizable size, tint, and position.
• Fully customizable day-night cycle.
• Easy to control either from scripts or directly in editor.
• High Performance. Optimized for mobile devices and VR platforms.
• Supports both SRP and LWRP.
Also, it’s easy to integrate, just drag prefab to your scene and you’re ready to go!