Question Light going through walls when smoothness is under 0.7

Hello, i'm having this problem when my materials smoothness are under 0.7 light is going into reflections through walls.

Smoothness 0.69:


Smoothness 0.7:



I've been struggling with this problems for days and i don't know why this is happening.

I've tried with screen space reflections, with ray tracing, different places for the reflection probes and nothing fixed it.

 

Yeah that was it. Thank you very much!

And is there any way to make it work without screen space reflections?

The same thing happens without screen space reflection enabled but with 0.9 instead of 0.7

 

No, in my case i'm using 3 reflection probes. One for the bedroom, one for the corridor and one for the room the camera is in.

The only thing that worked for me to completely remove the light going through the walls was to make another reflexion probe in this areas where the light is going through but i don't know if this is the right way or not as you clarly see tell where the reflexion proble influence volume is.

Reflexion probes in the middle of the room + corners:



A Single reflexion probe in the middle of the room:


As you can see if i only place one reflexion probe in the middle the corner are very lit but if i add more reflexion probes you can see it's influece box.

Also it's worth noting that i'm using a reflexion proxy volume for this room.