How do I do this in iRay? SOLVED

Ademnus

I need to add a tattoo to a charcater's face, which I can do in photoshop just fine -but I need it to be reflective like metal. I can't seem to figure out how to make just the tatoo reflective in the iray settings. I made a texture of just the tatoo against a black background sized to the same size as the face texture so the tattoo is in the right position etc -but I can't find a channel that does what I need nor do I know quite the settings.

KurzonDax

You could add a map to the glossy layer weight setting that has the tattoo shape a lighter color of grey than the rest of the map.  Are you using PBR Metal Roughness for the shader type?  If so, another option might be to create an all black map, and add your tattoo shape to it (in the right place), and make the tattoo shape a little (or a lot) lighter grey.  Put this map to the metallicity channel.  How much lighter you make it will determine how strong the effect is.

  

Design Anvil - Razor42

You could place the tattoo on a geoshell also which would give you full control of its material/surface.

Ademnus

Design Anvil - Razor42 said:

You could place the tattoo on a geoshell also which would give you full control of its material/surface.

 

what's a geoshell?

kitakoredaz

Select your Actor, then from top menu, Create New Geometry Shell.

half opacity  shell auto cover your Actor skin. next you may need to set OFF which you want not  visible part in parameter tab>shell>visibility

you can set ON OFF by surface group = Actor surface group, or face  group for each shell  part.

in my pic,  I only use torso map , then set OFF other grouops. and adjust shell off set too.

 

after that apply shell, tatoo  mat , as same as other mat with your  favorite shader. 

the good point is, geometry shell can apply different UV from Actor UV (though you need to get the UV set for the Actor)

in my pic, I use Victoria7 UV map  for geometry shell,(just because I exported V7uv obj,,in 3d coat before,,

  but genesis3female use default UV set.

then If you use uber iray shader with Geo shell for Tatoo layer, at first you need to make cut-out opacity map from tatoo map,

and add normal ,bump , map too if you can,,, for geometery shell.   and set cut out opacity value. (maybe 1.00 is good for metal tatoo,,)

I can not offer good advice about Uver iray shader parameter to get good metaric tatoo,, then you may better wait other advice. keeping this topic,

(I may learn and steal from it  )

 

 

Ademnus

new and exciting, I never even knew about this feature (and Ive been using DAZ a long, long time).  Will be diving in today, will update with results.

Ademnus

Thanks to KurzonDax and kitakoredaz, for all their help!

 

I really love these geoshells. I will use them for tons of things. Thanks so much! Problem SOLVED.

Design Anvil - Razor42

Aww, no love for me? ;)

Glad you got it sorted! :)

Szark

I love you Design in a purely platonic sense :)

Design Anvil - Razor42

Aw, thanks Szark :) The feeling is platonically mutual :)

Szark

LOL I can feel the love

OminousAutumn

hey guys, very cool. is it possible for me to get a "sleeve tattoo" to conform? i figured out all the steps described above but what kind of file do i need and or what do i need to do to that file so that it will "crop" and "scale" so to speak to the arm or whatever body part? everything i add to the arm just looks like a giant blur which does make sense, however i dont know the work around. i have inked Vol 7 from renderosity but i cant seem to factor that in a helpful way. i dont have photoshot or brushes etc. let me know...cheers :)