Can I delete lightmaps from map file?

cgrebeld · July 7, 2014, 3:13pm

I suspect that the lightmass lightmaps are taking up a lot of disk space in the umap file for my map. It seems wasteful to submit the lightmass assets into source control because they can be simply regenerated. So I would like to clear them out before submitting to perforce.

Is there a way to see how much disk space the lightmass lightmaps are using?
Can I ‘build clean’ or simply delete the lightmaps from the map file?

anonymous_user_f2b8b290 · July 8, 2014, 2:11am

There’s no way to delete those assets from the map package manually. You can check bForceNoPrecomputedLighting and rebuild, that will cause them to be deleted.

cgrebeld · July 8, 2014, 1:41pm

Thanks! I don’t know how I missed that checkbox. It’s a dramatic reduction in file size.

anonymous_user_e369cdc2 · January 23, 2015, 6:48pm

Thanks for the hint, but where can i find this setting?

anonymous_user_6e7b421a · January 23, 2015, 7:29pm

Within your ‘World Settings’ under the ‘Lightmass’ section there is a checkbox labeled ‘Force No Precomputed Lighting.’

World Settings

Cheers,

Tim_Hobson · January 23, 2015, 7:31pm

This is located in “World Settings” (Enable this panel by going to Settings in the toolbar > World Settings) located next to the Details Panel tab. If you search or scroll down to the tab labeled “Precomputed Visibility” and enable the check box.

anonymous_user_e369cdc2 · January 24, 2015, 1:23pm

Super awesome, thanks a lot!!

HighlySpammable · November 6, 2015, 7:15am

So this works but I kinda feel like it shouldn’t be a problem to begin with. Probably worth flagging this as an issue with the Engine to Epic.