This course covers a variety of topics related to procedural asset creation within Unreal.
This video covers the process for adding irregularity using Perlin deformation, baking ambient occlusion into the vertex colors using Geometry Scripting, and accessing those vertex colors in a material.
Unreal Project available here: https://www.artstation.com/a/38584585
Full course playlist available here:
• Procedural Modeling with Unreal 5