It took over 45 minutes to delete 10500 objects from a level

[anonymous_user_10cd5e1d1 (anonymous_user_10cd5e1d)]

@anonymous_user_e137096b

As an alternative workflow for this issue, I have gotten into the habit of using level streaming and importing one datasmith import per level. If I want to delete the import, I can remove the streaming level from the persistent level, close unreal, and then delete the imported folder and related level directly from windows explorer. It only helps when you want to delete the entire import (which sounds like what you are doing in this case). And if you have used anything from the import in other levels, it will mess things up, so you have to be careful about managing the project.

This is, verbatim, what I was going to suggest. Our DS files are something like 20,000 objects and I’ve missed deadlines early on when learning Unreal due to this. However, I’ve now learned to break that one DS file into perhaps 5 (architecture, casework, furniture, lights, structural) and create 5 corresponding levels, each with nothing but one of those DS files on it. This gives me a few benefits. One is that if the architecture changes, I only need to export/import that single file instead of EVERYTHING, and two if I need to wipe it clean and start over I can do he process quoted above. Only takes about 10 minutes total which isn’t bad.

The other benefit is the more you split them up, the more artists can all work simultaneously. I can have someone working on architecture materials, someone working on lights, someone working on furniture all at once with Perforce.