https://dl.dropboxusercontent.com/u/70400220/Bugs/skylight-bsp-bug.png
It should explain everything. Marked area is shadowed BSP surface. As you can see there is no contribution from skylight.
Static Meshes are lit properly by skylight (aside from shadow seams, but that is not issue).
edit:
Bug occurs when Cast Shadow on static lighting is checked.
Are white walls behind it BSP’s? If so then maybe because base colour of object is so dark that it looks like it isn’t receiving any bounce light. Is there a setting in Skylight properties to adjust ambient light? Try changing material of BSP to something with a light colour and see if issue is still there. Also try building lighting too, sometimes it makes a difference and editor doesn’t warn you to re-build. Hope this helps find a solution!
It looks like you’ve got a static mesh in scene (SM_MatPreviewMesh_01) that is being lit same as those BSPs, so I’m not sure this is BSP specific
Yea I noticed that too, I think it’s material that’s assigned which is causing issue, maybe it’s too dark.
No it’s not issue of material. I tried adjusting Skylight intensity and shadowed areas of BSP meshes are simply ignored.
Everything else that is not marked is made of Static Meshes.
Ah ok, did you try re-building lighting? You could upload map here and we could check it out on our systems to see if we get same issue.
You can test it on any level.
1 Use example level.
In World Settings set Enviromental Light to 0 (or color to black).
Add Skylight.
Change DirectionalLight settings to be Movable.
I’m getting same problem here. Any news about it? Looks like it’s only works without “Cast Shadows”
Hey Iniside,
Thanks for your report. I was able to duplicate issue you’re seeing and can confirm that it is a bug. I’ve entered a ticket in our system and sent it to our developers to take a look at.
Thanks again, and please continue to let us know when see issues like that!
I noticed this as well, so instead of creating a new thread I would like to add some new findings after upgrading to 4.1:
In 4.1 BSP seemed to pick up some lighting from skylights, but not all. Further testing indicates that bounced lighting is now picked up by BSP, but lighting from direct exposure to sky is not.