Strange artefacts on textures

[timur.omelchak]

When camera position is more than 360 points something strange happens with textures on a big objects (as seen on attachments), what can it be? First picture is normal, when camera stays on 360 points wrom center, and second with artefacts, when camera stays on 368 points.

 

link for nodes of scene http://file.qip.ru/file/Kh7A4G-l/R2_fix2.html