Basic material/texturing question

[ingoerik]

So, i have the nice Arroway concrete textures collection and want to make them Vray ready. Each set has a color map, a specular/reflection map and a bump map. Color and bump are easy, but i am struggling with the reflection settings. The possible Vray settings are reflection color and reflection glossiness, and i have an specular/reflection map i want to use. So can anyone enlighten me what settings i should use and maybe even explain to me why ?

[vladimir.nedev]

You should be asking whoever created the maps in the first place, he should know their intended use.

Greetings,
Vladimir Nedev

[Muhammed_Hamed]

Would be nice if you share how the maps look.

[ingoerik]

Hi Muhammed, you can see them all here : https://www.arroway-textures.ch/en/products/concrete-1

[Muhammed_Hamed]

I would use the specular map in Reflection color slot, then you have your Diffuse map and bump map
I would create a reflection glossiness map from the bump map with a simple color correction node, but you can just use a value like what they say on the website (.25 or so)
Using IOR of 3 , and GGX tail falloff of about 1.6 to 1.8
The textures are really nice and you can easily get your materials to look the same as the previews on their website.

[ingoerik]

Thanks, thats a great help. I use the specular map for reflection glossiness and for reflection color with the number they suggested, for example concrete-001_s050_g050 has the opacity 50% for reflection color and 50 % for reflection glossiness.

I just don't know about the bump mapping since they suggested it in % too, but thats a guessing game.

[boyan]

thx Muhammed,

[Muhammed_Hamed]

@lngoerlk You don't need to use the exact values they provided, but they might be a good starting point for testing. Same for bump mapping, turn on RT and eyeball it
Check your specular,reflection and diffuse filter render elements to have an idea of how things should look like.
boyan Cheers!