Tracks Light inside a building

[Richie00]

Hello Guys, im new with creating tracks, and i dont understand why this happening. So basicly the light goes through the wall, what should i do to fix this? Im using blender

 

[Stereo]

It happens because of how shadows work in AC. If you add another inward-facing layer to the wall between inside and outside, then it can stop it. If the wall's infinitely thin then it'll just happen that way.

 

[Richie00]

It happens because of how shadows work in AC. If you add another inward-facing layer to the wall between inside and outside, then it can stop it. If the wall's infinitely thin then it'll just happen that way.

Thank You very much, its working. Happy Holidays to you!