Help with bad lightmaps

NAIMA

Hello , I have a big issue with lightmap so far, I have a huge building I want to convert to unreal , its basically a real building from revit , so its made of blocks and so on , but When I export I get all sort of lightmap errors I can't seem to fic neither increasing resolution , isn't an option as its thousands of walls and crashes my pc, neither manually fixing each wall , that woul dtake ages, so I made tests on a small portion ,just a room and I still get same issues even with higher res or manual fix on uvmaps for lightmaps... Can someone help me and point me how to fix ?

Thankyou very much

Here I am uploading a fbx , its just a portion of the huge building need to do , but I want to understand what are the issues, I am having even with custom made plain lightmap uv and on angles I get weird shadowings...

https://files.fm/u/kk5vk3h2

https://i.gyazo.com/b5181362e5237561...3e2e10d188.jpg

zachagreg

What do the lightmaps look like in Unreal? The actual UV layout that is.

NAIMA

zachagreg said:

What do the lightmaps look like in Unreal? The actual UV layout that is.

https://i.gyazo.com/86faf7d809c0f7a7bd51897307046f0e.png

NAIMA

And here is the unreal project level , I just skipped on materials that are too many and heavy folder, I just used anyway a plaster material on walls, glass on windows and plastic on deck , marble on floor.

https://files.fm/u/pqnqe3jf

Any help would be great thankyou!

btw remodeling walls is not an options because there are thousands of them and I could just rescale textures .

fangazza

Take a look at this: https://www.youtube.com/watch?v=rO_YJF-lYWI

NAIMA

Followed the video but didn'thelp , it basically sugests to rise the texture of light bleed points to 4096 ... well even with that nothinchanges, I always have light bleeds from roof and a different coloration seam between two walls , I tried to put even the same item sided two times and one gets a color the other  gets different tone ...