Downloaded materials - "seamless" textures?

Question

3D

Good afternoon.
I downloaded about 600 materials from vray-materials.de.
I impose on a plane, do tiling, I see that the textures are not seamless, although everything looks fine on the attached previews.

Perhaps I'm doing something wrong? Maybe they need to be tiled with an overlay? If yes, how to do it?

Answer 1

The preview is just a tricky scan, so the seams are on the back of the model and are not visible from this viewing angle. On such a model, any texture will look like a seamless one. And this particular texture is non-seamless, which is what you see on the plane.