Hi guys;
I have some problems with the lighning of my stage. I fail to fix the floating shadows on the doors, the chairs do not generate a good shadow, urinals have a clear area in the shadow, ground objects do not generate shadow. Attached some pictures.
I have tried to improve the resolution of the lightmap, building lights on “production mode”, remake mesh with new uvs, but nothing works.
Can anyone help me, please?
Greetings!
urinals -> are those meshes just with one side or are they solid?
ground objects -> have you placed them with the foliage tool? 
other objects -> increase the lightmap resolution of the ground/door
Which lights do you use in your scene (dynamic, static,…) + do you get any errors/warnings when you build the light?
Hi , thank you very much for helping.
Regarding the urinals, sorry but I do not understand. You mean if the mesh of urinals have one side parts and separated from the rest of the mesh? The base mesh urinals was a cylinder. From there, I did modeling box to the desired shape. Hope this can help. If not, let me know, please.
Ground objects were placed manually without foliage. The first time I did it with foliage, but I always got the same error when constructing the lights (“WorldSettings” asked me to rebuild the lights again). So I deleted all the foliage and placed the objects manually on the ground. That fixed the error, however, I see no shadow.
For ground and other objects, I improved lightmap resolution up to 256, but I see no improvement. Should increase more resolution?
The lights are in “movable” mode. All part of the same blueprint. When I build the lights, the same warning (“1 element with zero triangles in static mesh”) always appears. I searched about it but found nothing to help me fix it. I tried to completely redo the blueprint, but does the same.
If you want more information, just let me know, please.
Dynamic lights (Movable) are a little “sloppy” and can cause the floating issues you are seeing. Also, because they are dynamic they are not included in your lighting build. Your lightmap resolution and UVs aren’t doing a single thing if your lighting isn’t being pre-calculated. Try turning your lights to static or Stationary to make use of Lightmass’s global illumination and soft, accurate shadows. After that you can decide if you need more lightmap resolution or better lightmap UVs.
I can’t really help you with the “zero triangles” issue.
