XGen, Mental Ray and archives's colors

#1

Hello,

I’ve been working with XGen and custom archives in Mental Ray this last days and I would like my archives to get their color from the texture or paintmap on the surface they’re attached to. In other words I would just like to control my archives color with an XGen expressions. I’ve seen very simple tutorials for Arnold & VRay, and they’re both using similar nodes (AiUserDataColor and VRayUserColor) to add custom attributes and link them to XGen’s custom shader parameters. However I can’t find any information on how to do the same thing with mental ray. Anyone has a solution ?

Arnold Tut. : https://support.solidangle.com/display/mayatut/Assigning+Color+to+Primitive+Archives
Vray Tut. : http://docs.chaosgroup.com/display/VRAY3MAYA/XGen+Archive+Primitives

#2

Yes Pahuska, I’ve been watching the same tut with Arnold and Vray, but couldn’t replicate the same coloring result with “native” Mental ray with Xgen. Anyone?

#3

I’ve found similar nodes in maya called mib_data_color, mib_data_get_color, mib_data_color_array, etc… I have no idea how to use them. I tried like in the Arnold tutorial but it’s not working…

#4

http://area.autodesk.com/blogs/daryl/maya-monday---xgen-index-archive-tool

#5

I’ve seen this video but that’s not what I’m looking for. This tutorial shows you how to paint the archives’s indexes, what I want is to the color that will be used in the shader for rendering.