Hi i am working on landscape. and i have encountered this issue there is a dark line came in between my envoirnment. i have tried all things which AI has told me but still unable to resolve this issue
Hello there @iceanimations!
Checking with my peers, and from the looks of your screenshots, that looks like a shadow bias conflict in your lights. The feature controls how close a shadow starts to the object casting it. If it’s too high or too low, shadows will start having strange limits, generating the dark line effect you are seeing.
To fix it, select the light sources in your scene, go to Details, and located “Shadow Bias” and “Shadow Slope Bias”. Play around with the values, starting with small changes, until the line dissapears.
Alternatively, it could be related to your shadow maps, if your scene is using regular, or virtual ones. Go to Edit > Project Settings > Engine > Rendering, and check which method is being used, then change it for the other.
If regular maps fix the problem, you can continue working with them. Yet, if you need VSM to work as intended, try adjusting the following values via console command:
r.Shadow.Virtual.ResolutionLodBias -2
r.Shadow.Virtual.MaxPhysicalPages 4096
For more details on these topics, please check the UE docs below:
my shadow maps method is on virtual shadow map. and i have turned off all lights and as you can see this is showing.






