Blend Material to Nanite Mesh - Unreal Engine tutorial
How to generate Nanite meshes from low poly assets with blend material (vertex painted)
This will help you generate detailed models for Nanite scenes with complex blended materials.
Vertex paint will be baked into the Nanite mesh and you can use the same blend material.
If you need to repaint your vertex colors you can disable Nanite repaint and then generate Nanite again.
