Help needed: Trying to make a skin look oily/shiny

ps2000

I am currently trying to make a genesis 8 female skin look oily/shiny.

It's the following characters skin:

https://www.daz3d.com/danai-hd-for-nida-8

I tried to increase the Dual Lobe Specular surface settings to no avail (Dual lobe specular weight and reflectivity, specular roughness 1 and 2, Dual lobe specular ratio). 

The skin looks basically still the same. 

 I have wet and tanned skins for genesis 8 but the problem is that this product also changes the skin tone and I don't want that.

Any ideas on how I can get the skin to look oily?

thanks

Richard Haseltine

Try setting Top Coat Weight to a non-zero value and then playing with the settings that are exposed under it

Marty3D

Have a look at the Glossy Reflectivity and Glossy Roughness settings too.

The Blurst of Times

If there's a map in the Glossy Layered Weight or Top Coat Weight, remove those. (Maybe do it one at a time as you can use both in similar fashion, and better not to change all the variables at once.) Any maps in those channels can complicate what the engine is doing, really. Especially if you just want to represent a layer of oil... better not to have a map at all unless you really want to be specific about where the oily look is.

Anyway, remove the maps, increase the weight. Play with the sub-dials, like Glossy Reflectivity and Roughness, as others have said.

ps2000

I played around with the top coat settings.

I was able to change the color with the thin film option. But no luck in making the skin look oily.

Trying the glossy options next.

Thanks.

ps2000

Increasing glossy reflectivity and decreasing glossy roughness did result in a shine.

But I am still not satisfied with the result.

 

magog_a4eb71ab

ps2000 said:

I am currently trying to make a genesis 8 female skin look oily/shiny.

It's the following characters skin:

https://www.daz3d.com/danai-hd-for-nida-8

I tried to increase the Dual Lobe Specular surface settings to no avail (Dual lobe specular weight and reflectivity, specular roughness 1 and 2, Dual lobe specular ratio). 

The skin looks basically still the same. 

 I have wet and tanned skins for genesis 8 but the problem is that this product also changes the skin tone and I don't want that.

Any ideas on how I can get the skin to look oily?

thanks

 For oily skin, the Top Coat layer is probably the best way to go. Something like Top Coat Weight 0.18 to 0.25(using the character specular maps is recommended), Top Coat Color 1.00 1.00 1.00, Top Coat Color Effect "Scatter & Transmit", Top Coat Roughness 0.25 to 0.35, Top Coat Layering Mode "Fresnel", Top Coat IoR 1.49, Top Coat Thin Film 100 to 800, Top Coat Thin Film IoR 1.40, Top Coat Bump Mode either "Height Map" for bump maps or "Normal Map" for normal maps, Top Coat Bump 0.5 or higher/lower depending on the map.

The Glossy Layer and/or Dual Lober Specular settings should correspond with the Top Layer settings for the effects you're trying to get in regards to roughness, meaning you want to have a greater roughness for Glossy Layer(by at least TC Roughness + 0.10 or leave at the default if its high enough) & Dual Lobe Specular, but you don't want their effects to be too strong. Also, I would recommend playing around with the Top Coat Anisotropy and Top Coat Rotations in conjunction with the aforementioned Top Coat settings. I'm using Daz Studio 4.10 right now, so the results might be a bit different for you if you're using a newer version.

magog_a4eb71ab

ps2000 said:

I played around with the top coat settings.

I was able to change the color with the thin film option. But no luck in making the skin look oily.

Trying the glossy options next.

Thanks.

You shouldn't need to change the color. Its all down to using the proper amount of weight, roughness, thin film thickness, and bump or normal maps in the Top Coat settings. Proper bump/normals keep the reflective Top Coat surface from looking like a mirror or the surface of still-water and more like oily skin as it breaks up the reflection. Adding Top Coat Anisotropy I've found can help a little more, too.

ps2000

Thanks for that really detailed post, Magog.

That really helped.

The result looks much better now.

But adding the specular maps of the character under top coat and top coat bump strangely had the reverse result and destroyed the oily look. 

So I think I have to remove them again like Blurst of times suggested.

magog_a4eb71ab

ps2000 said:

Thanks for that really detailed post, Magog.

That really helped.

The result looks much better now.

But adding the specular maps of the character under top coat and top coat bump strangely had the reverse result and destroyed the oily look. 

So I think I have to remove them again like Blurst of times suggested.

I don't own the character you're working with, but you might need to adjust the Top Coat Weight(i.e. increase it) for the particular map being used, unless you're going for that oiled-up from head to toe beach look, in which case you can just not use the specular map in the top coat weight. You still want to use a bump or normal map(whichever works better) for the Top Coat Bump.

Hylas

This may also help: https://thinkdrawart.com/how-to-get-wet-skin-in-iray

Taoz

An older thread, someone posted a nornal map there you can use:

https://www.daz3d.com/forums/discussion/353671/get-a-wet-and-a-oily-looking-skin-for-figure-with-anagenesis-shader-added/p1