I am doing a blueprint project but I find some unknown error of lighting and incorrect shadow.
My project is a normal apartment. However, I find the light come out from the edge between two walls and appear some black points on walls after building.
I find some methods on the internet and I create a new level to try them. I just import walls, celling and floor to the empty level.
According this UE4 post : https://forums.unrealengine.com/showthread.php?46269-Modular-Asset-Lighting-Problem
I create an second UV map for lighting in 3ds Max and set suggest value that I circle below.
My value is 512x512 and grid size is 1/512=0.00195312
And the follow is my UV map.
I also set the light map resolution to 1024 in UE4 but the problem still here.
Below is my level. I try to import walls one by one before. However, the problem appear so I try to attach all walls to one object so it may be no space between two walls. Unfortunately, the light
still come out from edge (show below).
I also try to attach roof to walls but problem still here. The level just have two objects, roof+walls and floor but the light still can come out. You can see the light from top edge near roof. Light come
out from same place in two tests.
However, I found that the wrong lights will appear when I use Sky Light. I use Directional Light with Sky Light in all my levels. The following picture is just include Directional Light.
Those error light is gone but the black points are worse.
Would anyone can fix it? Thx