Mesh Edges while rendering elevation

Rendering V-Ray
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1

Ive been struggling here with those mesh edges (are those mesh edges?) appearing on some of the surfaces while rendering my elevations. Nothing like that appeared in rendered isometries or perspectives, where can be the problem? could it be in textures? most of them are generic vray materials simply colored, nothing fancy…

thank you in advance !

bug
bug592×739 371 KB

2

Export just the surfaces that show this problem to a new 3dm file, then upload if you want people to investigate what actually is going on.

Until then we can only guess: too course render mesh settings?