Level Design Strange light issue

[Sgt.NightFire]

I am having this strange light issue, nymets already has been trying to help but we have not found a fix for it yet, it looks like the sphere you see of the light in the editor, seeing you see it better in video format, here is a example:

https://www.youtube.com/watch?v=N1AKhUiRZ7c

 

[nymets1104]

Also, the problem only appears in game and it is not visible in the editor or PIE. He tried replacing the Point Lights and got the same results. Correct me if I am wrong, but this is a BSP building also.

 

[StmRtn]

I had that same problem, but it was the fog volume that was somehow ''broken''.

 

[Sgt.NightFire]

Also, the problem only appears in game and it is not visible in the editor or PIE. He tried replacing the Point Lights and got the same results. Correct me if I am wrong, but this is a BSP building also.

Yes, it is a BSP building indeed.

I had that same problem, but it was the fog volume that was somehow ''broken''.

Well, that would be helpful, only i don't have a fog volume in the map.

 

[Twrecks]

BSP is typically vertex lit, and very poor shadow resolution.

From The WorldofLevelDesign.com :

"Left-click on the BSP surface to select it. Press F4 to go to Surface Properties.

In the window you will be able to set lightmap resolution. The only thing you need to know is the lower the value of BSP Lightmap resolution, the better it will look. Which is opposite of Static Mesh lightmaps."

Use only powers of 2 (ie. 2, 4, 8, 16, 32, 64). I belive the default for BSP is 32, which looks like poo.

Large BSP surfaces also suffer from bad shadow resolution especially if multiple light sources are contributing shadows. Solution, break large BSP surfaces, so instead of having 1x 2048 UU square surface, have 4x 1024 UU squares.

In addition, lights may have the following variables:
MinShadowResolution
MaxShadowResolution
ShadowFadeResolution
ShadowDistance

Obvious tweeks there.

 

[Sgt.NightFire]

I tried some tweaking with the shadow res, fade res and such, and this seems to have fixed it!

 

[nymets1104]

Awesome!