Hello fellow Keyshooters,
I have been trying to replicate a Neoprene material of this Kettlebell, but after I am not quite able to do it. It seems to have rough parts, but also some parts are reflective
Maybe someone can help me?
Or am I already pixel blind and this is an actual taken picture?
I covered the logo and name of the brand.
Thanks in advance!
Cheers!
I can take a look at it tomorrow. Could easily be a picture as well since the material is a liquid form of neoprene and I reckon they just give it a few baths to get the thickness they need.
It’s an oil based product so it’s dark grey/black by default and guess mixed with paints to give it the color they want. At least, that’s what I see if I check some online info about it.
I would start with a very rough paint or plastic material and just use two different seamless textures for some roughness differences and a bit of bump. Might be even better to take a sub surface scattering material as base but that will create longer render times.
My bet is plastic material with cellular noise attached to bump and roughness.
Was also my first guess, but I tried ~30 different iterations, but nothing came close.
Especially when zooming in, the resolution is so off, regardles of which resolution and dpi I use to render.
Playing a lot with specular and refrective index as well, but no luck so far.
I did an attempt and must say I’m quite happy with the result and tried to keep it simple. Because I wanted to try to do it with sub surface scattering material I thought to model the rest of the kettlebell which I think was a waste of time but well… I thought it might have an impact on the result depending on the depth of the scattering.
Tadaa:
Than I started with just a subsurface scattering material including some noise to drive the density. I think it’s a bit odd the scattering medium itself still has a density number even when you use a texture to basically create that value. Maybe Mr Will has an explanation for it.
This was the result and it looked a bit clean compared to your closeup (screenshot example):
So I than thought to use basically the same noise to also drive a label. I don’t get it why I just can’t connect the same thing to the ‘bump’ slot but well, seems bump is treated differently than everything else still in KS2024.1
Which gives me these results:
It gives it a bit of a less equal, flakey feel. Might be better if it’s a bit smaller but I thought to just use the same noise thing to keep the graph a bit more simple.
If I look to other images of such fitness equipment with neoprene coating it’s really a diffuse material without hard shadows because of the foam like structure. As long as you don’t need real closeups I wouldn’t actually bother too much about the structure you see in close-ups.
The render time of the close-up was pretty long and of course you can’t use denoise here since it would remove the structure.
The light setup of your scene was really complicated which I think makes it even harder to get an idea how the material acts. I now used just an HDR from some Studio Set Pack I had and that makes it easier to tweak a material since it’s not as distracting with all the lights you had put in.
I’ll upload it in a few minutes and will send you the link in a PM. Hope it helps and let me know if you need some more or want improvements. I think the material now reacts really nice on light but it’s a bit heavier to render.
I would use the advanced material type. The noise could be used in the ambient channel as well to define subtle highlights
