Packaged Win64 project .UBULK, .UEXP, and .UMAP files?


I’m noticing 3 different files for my map in a packaged project: map.ubulk, map.uexp, and map.umap. The ubulk and uexp files are both very large. Do I need all 3 of these files? I tried searching for a definition of the different map file types but could not find an answer. If anyone could enlighten me I’d appreciate it!

Bump. Noone has an answer for this?

Yes, you need all 3 files. They contain bulk data like lightmaps, which are usually much larger than the map itself.

Ah I see. I’ll have to try to find other ways to reduce the file size of my map itself and just project in general then. Thanks very much for the response!