Material compression and LOD export

  1. if I have a static mesh asset that has two components assigned the same material- will the engine compress these into 1 component at runtime?

  2. Is there a way to export LODs from a static mesh through the export function or any way else?

I’m trying to fix assets I don’t have the source for. Thanks!

No this is not supported you will need to get rid of the extra Material if you want to save on rendering costs.

Currently this is not supported natively in UE4. But depending on your LOD’s you could use something like Pro Optimizer in 3Ds Max to re-create them from the original or exported mesh.