light spots after buidling

anonymous_user_9aea2bf8 · May 13, 2018, 8:11pm

hello there,

i recently made a scene and added lights in to it at first everything was fine but now when i build my light i get weird circles (spots) of light on walls that are not even in the light zone and also on object in the light radius. Hope somebody can help me because i want to continue with working hope its not a 4.19 bug

anonymous_user_f26c856c1 · May 13, 2018, 8:19pm

Hi!

No, it’s not a bug but wrong settings!
Those strange shadow/light shapes are because of low lightmap resolution!

anonymous_user_9aea2bf8 · May 13, 2018, 8:39pm

according to my light density its fine ?

_WoLD_AlexG · May 16, 2018, 4:28pm

Make sure your Static Mesh has its own lightmap UV channel (2nd UV channel)
You can generate one in UE4 but its better to create one in your 3d modeling app
Check lightmap resolution and increase it
Open Static Mesh Editor for that Static Mesh and set “Lightmap Coordinate Index” to “1” (see image)
Rebuild your lights