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1. [SOLVED] UE4 lighting artifact issue - strange bright spots on static mesh

   

   

   Topic by CrackRockSteady · Mar 2018 · Home› Unreal Engine

   Hello! Hopefully someone here can help me out with this lighting issue I'm having, I've tried everything I can think of to fix this to no avail. Everything in the scene is baked lighting, I'm running 4.18, the problem i'm having is a bright spot that appears on a shadowed part of the mesh, but the spot only appears when…

2. Re: [SOLVED] UE4 lighting artifact issue - strange bright spots on static mesh

   

   Reply by CrackRockSteady · Mar 2018 · Home› Unreal Engine

   @Obscura I had to go look up what cascaded shadows were and then check my scene (like i said, not super familiar with UE4 right now). My light was using cascaded shadow maps. I set the dynamic shadow distance to 0 to disable it and it immediately fixed the problem. Thank you so much!

3. Re: [SOLVED] UE4 lighting artifact issue - strange bright spots on static mesh

   

   Reply by CrackRockSteady · Mar 2018 · Home› Unreal Engine

   @JordanN I am already using a lightmass importance volume. I'd rather not go overboard with the lightmass settings. I'm looking for what's causing the issue and a more realistic solution than going crazy with the settings. Even increasing the lightmap resolution was only intended as a way to determine what was causing the…

4. Re: [SOLVED] UE4 lighting artifact issue - strange bright spots on static mesh

   

   Reply by CrackRockSteady · Mar 2018 · Home› Unreal Engine

   Yes I think you're right, for my purposes that will work best. Happy to have been able to learn something, thanks a lot for helping me out with this I was pulling my hair out.

5. Re: [SOLVED] UE4 lighting artifact issue - strange bright spots on static mesh

   

   Reply by Obscura · Mar 2018 · Home› Unreal Engine

   Are you using stationary directional light with cascaded shadows? I was only able to reproduce this kind of resolution change over distance, using these.

6. Re: [SOLVED] UE4 lighting artifact issue - strange bright spots on static mesh

   

   Reply by CrackRockSteady · Mar 2018 · Home› Unreal Engine

   I wasn't sure which lightmap was for this asset so I changed the setting on all of them just to be sure. I tried disabling mipmaps first and then tried changing them all to Sharpen but I am still getting this bright splotch. I'll keep poking around with it and see if I can figure it out.

7. Re: [SOLVED] UE4 lighting artifact issue - strange bright spots on static mesh

   

   Reply by CrackRockSteady · Mar 2018 · Home› Unreal Engine

   @Obscura gave that a shot just now, tried baking with it set to 64, 128, 256, same results each time :/

8. Re: [SOLVED] UE4 lighting artifact issue - strange bright spots on static mesh

   

   Reply by CrackRockSteady · Mar 2018 · Home› Unreal Engine

   @Obscura Thanks for your reply, I'll give it a try tonight when i get home!

9. Re: [SOLVED] UE4 lighting artifact issue - strange bright spots on static mesh

   

   Reply by Obscura · Mar 2018 · Home› Unreal Engine

   Great. I think in a scene where the sun condition cannot change, you should rather go with static movability. Reflection quality can be worse though... So I guess its up to your consideration, but if you take a look at the profiling tool, you can see that cascaded shadows are more expensive than static ones.

10. Re: [SOLVED] UE4 lighting artifact issue - strange bright spots on static mesh

    

    Reply by Obscura · Mar 2018 · Home› Unreal Engine

    Too bad...Then you can try this, but it will affect multiple objects, not only this one. Go to the world settings, and go to the lightmass section there. You'll see the array of baked lightmaps on the bottom section - its also visible on your last picture. Find the one that belongs to this object, and either disable…