Converting Bot Genesis materials to Iray?

the_assassin

Bot Genesis  comes with some custom 3dl surfaces that don't work in Iray.  (Not when rendering the original materials, and not when converting to the Uber Iray Base either).

Part of the problem is that the metallic effect doesn't work (it comes out looking like matt plastic).  This can be worked around by applying metal shaders to all the surfaces, as discussed here.

However, this doesn't solve the whole problem.  Many of the surfaces have various .jpg images attached, to create various effects (reflections, makeup on the female skin, etc).  Some of these get lost if the Uber Base is applied (and all are if a metal shader is applied).  I can re-apply some of these, but others I have no idea what parameter they apply to in Uber.

Are there any shader experts who can work out where the files should go in Uber Base?  The most important disappearing files 

image file	purpose	3dl parameter	value	Uber Base equivilent
bot_face_fem.jpg	Makeup	Image map (14)	255,255,255	Base/Diffuse/Reflection/Base Color
bot_face_r_m_2.jpg	unknown	Image Map (17)	1	unknown
crm_reflect_2.jpg	reflected image	Reflection colour	255,255,255	unknown

 

Images for reference:

1. original surfaces rendered in 3dl
2. surface rendered in Iray
3. Iray Polished Aluminium shader applied
4. bot_face_fem.jpg added
5. bot_face_fem.jpg
6. bot_face_r_m_2.jpg
7. crm_reflect_2.jpg

Edit: I've been told that the last three images aren't allowed to be posted, so I've removed them and will describe them instead:

1. bot_face_fem.jpg: all the facial detail (lipstick, eyeshadow, eyebrows, blusher)  
2. bot_face_r_m_2.jpg: presumably some sort of masking effect: all black except for some white shapes that align with certain patterns on the bot_face_fem.jpg
3. crm_reflect_2.jpg: A landscape, with two pillars on either side.  If you look carefully, you can see these reflected in the face in the first image.  (The pillars are the dark lines running up the sides of the face and curving over to almost meet at the forehead).  This must be overlaid on the surface somehow, but I can't see what parameter to do to use that.  Everywhere I''ve tried adding it it either has no effect, or appears as a part of the surface rather than a reflection in it.

Leana

You're not allowed to post the textures from a product so they'll probably be removed.

DireWorks

use uber surface, use top coat as weighted, give it a bit of roughness, play with others parameters

you can use both metallic and top coat see whats happen

you can use the map nr. 6 as roughness filter or invert it and use it as metallic filter

white means 100%

black 0%

Roughness play a big role and also 100% metallic means that the surface will become a mirror

the_assassin

Leana said:

You're not allowed to post the textures from a product so they'll probably be removed.

Ah, OK. Didn't realise.  I've removed them. 

the_assassin

Ah, just discovered what to do with the reflection image: for Iray rendering, it doesn't go on the surface at all.  You need to use it as the Environment Map in the Render Settings. 

Hylas

the_assassin said:

Part of the problem is that the metallic effect doesn't work (it comes out looking like matt plastic).

Set Metallicity to 1.0 and Glossy Roughness to about 0.2. Does this help?

the_assassin

Hylas said:

Set Metallicity to 1.0 and Glossy Roughness to about 0.2. Does this help?

Yes, that does it.  Thanks.