Here's a great customizable material that will let you create photorealistic clouds in UE4.
Have a look at SOA CloudsMaker for Unreal Engine that allows users to create photorealistic skies using a fully customizable material for the new VolumetricCloud Actor (UE4.26). Users can tweak the clouds’ main shape, control the vertical profile, add volumetric details and noises, add natural movements, and control the overall quality. The pack also features ten presets and a number of textures for the creation of realistic skies.
- 1 Actor Blueprint (SOA_CloudsMaker) to drag & drop in your scene
- 1 Master material and many material functions for clouds (with comments)
- 2 Default material preset + 13 Material Presets
- 2 Example maps to test your clouds (from the ground, from space)
- 20+ textures to start
- 1 Mountain mesh
- 1 Planet mesh