This is a paid asset, but now you can download Skybox Plus Free.
Detail this asset from Unity Store: Original Link
Skybox Plus v1.2.1
Skybox Plus is a beautiful, dynamic, skybox solution that includes real-time, animated haze & procedural clouds as well as hand-painted, multi-layered, clouds.
** Key Features **
– Dynamic skybox with day/night cycle and beautiful Sun, dawns/sunsets.
– Highly customizable skybox material with tons of options.
– Procedural haze/clouds with customizable colors, scale, density and rotation.
– Up to 7 layered cubemaps with customizable transparency, horizontal & vertical position and animation.
– Stars & Moon.
** Resources **
– Two master skybox shaders (only clouds, clouds + mountains).
– 28 ready to use skybox materials.
– 8 hand-painted, stylized clouds (cubemaps) inspired by Studio Ghibli style.
– 3 hand-painted, stylized mountain landscapes (cubemaps).
– 1 hand-painted, stylized Moon texture.
– Demo scene & documentation (PDF) included.
** Compatibility **
– Built-in & Universal Rendering Pipeline (URP) compatible.
– No global keywords used.
– Gamma & Linear color space support.
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