Lots of Unique meshes vs re-using lots of modular meshes.

I would like to merge alot of actors into unique meshes so as to reduce drawcalls, does having more unique meshes impact performance? I currently have 20 unique meshes, after merging actors I will have 40 or so.

Regardless of whether I do or dont merge my actors into lots of little Unique meshes The same materials and textures would be used.

It increases memory use, but if the meshes aren’t complex then it’s not going to make a difference. The other issue is that a single object can only use one lightmap so you would possibly have to increase the lightmap resolution very high.