Bump & Normal maps shading artifacts

[Liketheriver]

Hello to all,
There is something new about the shading artifact issue when adding normal maps or bump maps?
The workaround to increase the subdivisions operates well in small scenes (although on closeups the problem persists), but in large environments like architectural interiors with lots of fornitures, it saturated in a short time the available memory, and transfer times increase accordingly, especially in animation with large animated geometry when the scene is update frame by frame...
cheers
A.

[mark0spasic]

Try to change Ray epsilon value.

[Liketheriver]

It works!

thanks for the advice! that's the only parameter i had not taken into consideration