lazer scan importing

hi , ive got a lazer scan of an aircraft hanger but am trying to import it into unity. Ive managed to import it as a .ply file but some of the points seem to be inverted or objects withing the lazer scan are back to front. but once i import the same lazer scan into blender its fine . i was hoping someone in these forums might be able to help me fix this .
many thanks,
Kieran

 

is it reconstructed mesh (not actual point cloud?)

if mesh:
then some faces are probably backwards (flipped normals).

you can try 2 sided shader in unity,
or in blender if it has some tool to unify normals (or select bad ones and flip) ?

 

how would i know if it is reconstructed mesh ? as im not the one who did the scan i was just given the file to import into unity for a project ?

 

also can you send me a link to that 2 sided shader package for unity ? if it is one ?

 

heres one, https://assetstore.unity.com/packages/vfx/shaders/free-double-sided-shaders-23087
from forums can find few, do you need standard shader or unlit shader?