Ue 5.4.4 & 5.5.1 Lightning Difference

[Slygear]

Hello, as you can see in the two videos below, the lighting in Ue 5.4.4 and 5.5.1 is quite different. Although I am using the same settings, I cannot solve the problem in any way, what could be the reason?

Ue 5.4.4

Ue 5.5.1

[Astrotronic]

Hello,

One thing I notice is that Scalability is set to ‘Cinematic’ in 5.5.1, but is unset in the 5.4 video.

[Slygear]

Hello,

Now I have tested all Scalability settings in Ue 5.5.1, but there is not much difference in the lighting of the blocks.

[Slygear]

I fixed the problem by disabling all Interchange plugins and reimporting mesh.

[UE_FlavienP]

2 things:

1. I advise agains disabling all of the interchange plugins. You can deactivate it just for the FBX format. Use the following CVar Interchange.FeatureFlags.Import.FBX false

2. Your issue comes from the way the normal data is on your mesh.
   It is a change on the default value for the normal import.
   5.4 does an “import normal” while 5.5 “recompute normals”
   I am going to check with dev as Interchange should show the same default behaviour than legacy.

If you use interchange just make sure the “Recompute Normal” option is unticked and your problem should be solved.