I need help with creating material

[Simon11]

Hello guys, I dont know how to create this kind of meterial, do you guys saw this type of material on some site or know how to create such structure. I completely dont know how to make roughness and bump map.
https://www.maxfliz.pl/produkt/plytka-ceramiczna-60x120-miin612ly07,15574

[Simon11]

I created this viz, maybe you can tell whats wrong with he material

[Simon11]

Update, I found out that I need to work more on bump map rathen than flat diffuse map. Do you know how to create such bump structure ?

[Aram Avetisyan]

Hi,

You are pretty close. The effect you are looking for is most probably achieved by reflection glossiness (the inverse of roughness and vice versa) and a bit of bump.
You can simply download the sample from the link you shared as a texture and create different greyscale maps from it for roughness and bump.
I think the part you are missing is the texture mapping/scale at this point, rather than the material channels.

[Simon11]

wow, that sound just like the answer to my problem, i have never done that, i mean converting image to bump and gloss but maybe it will work correctly you. I will post the resoult tommorow

[Simon11]

ok so there is another problem, my mapping randomizer is creating this weird thing like the black frame in textures, its regullar, do you know how to get rid of this ?

[Aram Avetisyan]

It seems a tiling issue to me.
I think you should enable the randomization for each tile, and then tweak the settings to your liking.