Small gab issue in between modular parts

Hey everyone,
I’ve been experiencing this weird issue and not sure what is the cause of this. I created some modular pieces for the apartment. Parts like straight, corner, inner corner and ect. The width of for example the straight piece is 200cm which is 2.0m in unity. When I was level designing and placing the pieces together, I could see this weird gab in between the parts.

It’s a bit hard to screenshot this issue, but something like this…

All parts are placed next to each other perfectly, I used Unity’s Snapping tool. I have set the move value to 0.5m, so I would need to move the straight part four times in order for it to be perfectly next to the previous straight part and yet for some reason there is 0.01m or 0.02m gab in between each piece… Which is really visible in dark areas.

I also tried using vertex snapping in Unity, yet still same issue… Each part needs to overlap each other by a small 0.01m - 0.02m amount in order for this issue to not occur. :face_with_spiral_eyes:

This is floating point precision issue, it’s seems Is no real solution for this. Overlap hack only work for URP or deferred rendering pipeline due brightness artifacts caused by add mode light sources.