Blender 2.8 to UE4 4.25 Light Leaks In Building.

[dzrealkiller]

@darthviper107

Do any faces extend beyond each other in the corners? If a surface is visible on the outside then it can receive light and the pixels of the lightmap won’t line up exactly where the two pieces intersect so the light will be visible inside.

Otherwise, it can be useful to have an outside facing wall to block light even if that outside wall isn’t going to be visible, just use a low-resolution lightmap for it since it just needs to block light.

Nope all corners are merged as one which makes the entire model “Water Tight” There shouldn’t be any light leaking in but for some reason its just leaks the light inside… I’ve rebuilt the model 3 times, I’ve tried planes and thick walls and tried modeling a version with no cuts and kept it all as one piece yet the light still leaks in which should be impossible…