I am trying to export this rock model over to Unreal Engine 4. So far, i can import the mesh, but i cant figure out how to import the textures. keep in mind that the texture is made purely from Nodes (veroni, noise ect) so importing the .png isnt possible

just to clarify, i would like to import the textures, made purely using nodes, into Unreal Engine 4 (if possible). Thanks