In my project there a lot of objects, but for a few objects or part of them shadow is reversed under light, Like this table it’s surface (not legs) is dark when get in front of light and get lighter when get behind to the light.
This is screenshot when surface is under light and it is dark:
This is screenshot when surface is behind the light and it is light:
It is correct in blender:
In front of light:
behind the light:
and this is .gltf file:
table54.zip (701.3 KB)
I have other 3D files with .obj and .babylon files has same issue.