Weird Lod With Trees Poping In 150m Before Train (solved)

Hi!

I have an issue with LOD on trees and sometimes also shadows on tracks witch does render just before the train (150-200m). I have limit FPS to 35 but my system can hande 56 - 62 fps on most routes. (I use a gaming laptop, i have done this so the PC doesn't run on full capacity to reduce heat and fan noise)

In game settings are on ultra preset and 1080p.

In engine.ini i have tried

foliage.LODDistanceScale=5
foliage.DitheredLOD=5
r.viewdistanacescale=5

But this have no effect. Any ideas?

 

It happens since the latest big update introducing UE 4.26. Quite annoying.

 

have video look?

 

Video link:

 

You don´t need foliage.DitheredLOD as the dithering feature is intended to vanish objects. Just use foliage.LODDistanceScale=5 and that should be fine.

Anyway the effect in the video appears to be related to shadows and not to LODs. You can try the following:

r.Shadow.DistanceScale=2
r.Shadow.TransitionScale=2
r.Shadow.CSM.TransitionScale=2

This doubles the distance of shadows details, which is not too much but enough to keep performance. Those three lines and the foliage.LODDistanceScale=5 are the settings I use.

Cheers

 

It is better, i even adjustet the settings. But the trees are still popping in and the shadows are rendered just in front of the train. See the new video
My current settings in engine.ini:

r.BloomQuality=3
r.Color.Max=1.0
r.Color.Mid=0.5
r.Color.Min=0
r.SkylightIntensityMultiplier=0.6
r.EyeAdaptationQuality=1
r.Tonemapper.Quality=0
r.ToneMapper.Sharpen=1
r.HighQualityLightMaps=10
r.Shadow.DistanceScale=5
r.Shadow.TransitionScale=5
r.Shadow.CSM.TransitionScale=5
foliage.LODDistanceScale=5
r.ViewDistanceScale=5
r.Streaming.HLODStrategy=2

 

Something is acting strange in your system. I use foliage.LODDistanceScale=4 and have far less foliage pop-in than you in the video....

Just a though - remove all your supplied parameters in the ini file, and leave ONLY the foliage.LODDistanceScale and see what happens. Might be that some of those other parms are clashing with the foliage LOD.

 

Not so. foliage.ditheredLOD also controls fade-in, which camouflages tree pop-in.

 

Thanks but this didn't solve it. its just realy annoying because it did work prior to 4.26 on the same system.

 

Edit, it was a typing error. forget to add [SystemSettings] on top of my changes (facepalm)

But thanks to all who tried to help.