BSPs will be built with light/shadow extrapolated even if they are placed in a hidden sub_level of the project at the time of building.

Also Tested in 4.10.4, 4.11 Preview 6 and Dev-Editor-CL-2877235

Steps to Reproduce

*Quick Repro - Open the Attached 4.12 Project and Build Lighting for SubLevel_01 only*

  1. Create a Blank Project with NO Starter Content
  2. Save the default Unititled Level as Persistent.umap
  3. Open the Level Browser
  4. Create a New Level called Sub_Level_01
  5. Create a New Level called Sub_Level_02
  6. Select all items in the Persistent Level except the Player Start and move to the Sub_Level_01
  7. With Sub_Level_02 set to the working level, add a BSP object into the map
  8. Back in the Level Browser, hide Sub_Level_02 (This should only hide the BSP.)
  9. Set the Directional Light to Static
  10. Build Lighting

RESULTS: The BSP will pop back up and light will be built around it in Sub_Level_01 even though it is hidden via Sub_Level _02

EXPECTED: The BSP should not be built nor should lighting be built around it.

Have Comments or More Details?

Head over to the existingAnswerHub thread and let us know what's up.

Login to Vote

ComponentTools - BSP
Affects Versions4.
CreatedFeb 23, 2016
UpdatedAug 8, 2017