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Lightmap and shadow

Hello guys,
i have a problem about the shadows. I tried to create one pillar in 3ds max, 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,
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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.

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:

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

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