Keywords: UE4, Cloud, Sky, Weather

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Engine Default Sky Sphere:
Blueprint'/Engine/EngineSky/BP_Sky_Sphere.BP_Sky_Sphere'

Editor Usage

How to set up Sky Sphere

How to change Sky Color

Uncheck Colors Determined By Sun Position, and change Zenith Color

if uncheck Colors Determined By Sun Position, Sky Color would affect whole scene objects.

How to change Sun Position

In Level Editor, change the rotation of Directional Light.

Then click Refresh Material of Sky Sphere.

Reference: How to change basic sun position in editor (not PIE)?
https://answers.unrealengine.com/questions/317372/how-to-change-basic-sun-position-in-editor-not-pie.html

Assets

Sky & Weather

The ultimate, award winning, real-time sky & weather renderer.
https://simul.co/truesky/

Hemisphere is a sky and cloud plugin based on real life high dynamic range recordings featuring physically accurate lighting values. Get the plugin and timelapses here!
https://www.unrealengine.com/marketplace/en-US/product/hemisphere-plugin
https://gumroad.com/wouterweynants

A flexible dynamic sky system with natural cloud motion, plus customizable sun, moon and stars.
https://www.unrealengine.com/marketplace/en-US/product/ultra-dynamic-sky

An extensive tool to control dynamic time of day and weather settings using realistic volumetric clouds and atmosphere.
https://www.unrealengine.com/marketplace/en-US/product/sky-creator

CloudScape: Volumetric Cloud & Fog Library, A collection of Volumetric Cloud and Fog assets, materials and blueprints
https://www.unrealengine.com/marketplace/en-US/product/cloudscape-volumetric-cloud-library

Stylized Forest and Volumetric Clouds for Unreal Engine 4.27 and 5
https://arghanion.gumroad.com/l/szrbi

UE4 Cloud Creation Tutorial
https://80.lv/articles/ue4-cloud-creation-tutorial/

Sky Box Texture (Skybox)

Skies, 25 Skies (8k). Photorealistic good Quality and Simplicity with good performance.
https://www.unrealengine.com/marketplace/en-US/product/skies

Clouds & Skies, 30 Clouds (4k) and 8 Skies (8k). Photorealistic good Quality and Simplicity with good performance and customizable Materials.
https://www.unrealengine.com/marketplace/en-US/product/clouds-skies

Space Skybox Backgrounds
https://www.unrealengine.com/marketplace/en-US/product/space-skybox-backgrounds

UE5 Skybox Textures

UE5: Space Skyboxes, Unique and Stunning space nebula skyboxes. Dive into the realism of space in Unreal Engine 5.
https://www.unrealengine.com/marketplace/en-US/product/space-skyboxes-01

Nebula Skyboxes, 5 Unique and Stunning space nebula skyboxes. Dive into the realism of space in Unreal Engine 5.
https://www.unrealengine.com/marketplace/en-US/product/nebula-skyboxes

Tutorials

Youtube Tutorials

Advanced Volumetric Clouds in UE5. Tutorial & Free Download https://www.unrealengine.com/marketplace/en-US/product/winter-snow-landscape-01

Volumetric Paint Clouds FIX in Unreal Engine 4.26
https://www.youtube.com/watch?v=Q5taeumHw3M

快乐属于那些选择了孤独的人，因为你是从那儿来的，而且你还要回到那儿去。——《托马斯福音》（GospelofThomas）