A Free noise textures pack by Yoeri ‘Luos‘ Vleer 😀 He’s giving away loads of free (VFX) noise textures and a neat material setup! This free package contains:

6 merged noise textures.
22 noise gradient textures.
28 noise normal maps.
Paste-file for UE4 material setup.
Image to setup UE4 Material.
Examples on how to set the texture options in UE4.