Lightmap and shadow

Development Rendering
1

Hello guys,
i have a problem about the shadows. I tried to create one pillar in 3ds , use UV-MAP as a box and export, i tried to use a Shape_Cube and a Brush Box but the problem is still the same,

2363d6ea2840a4fb0dc1f54f97b7d169802cd234.jpeg
2363d6ea2840a4fb0dc1f54f97b7d169802cd234.jpeg1920×1038 186 KB

as you can see the shadow of the pillar projected on the floor is not continuous but is made up of these small squares. I do not think it’s a problem of lightmap because even with UE4 objects have the same problem , i tried to increase the lightmap resolution from 32 to 512 but it is always the same. Please help me.
Thank you.

2

Normally it is a lightmap problem:

  1. add a lightmass importance volume
  2. rebuild the light
  3. increase the lightmap resolution of the floor :slight_smile:
3

Thank you very much, i will try asp. :slight_smile: :slight_smile: :slight_smile:

4

It’s the floor, the lightmap resolution of the floor is too low