[MentalRay] Maya Custom Shader Install

How to intall Mental Ray Custom Shader ?

Mental Ray shaders commonly place in 

C:\Program Files\Autodesk\mentalrayForMaya2015\shaders (in Maya2015)

example : MayaShaders.dll

It is a binary data, and the mi place in include : MayaShaders.mi

so you need a pairs file : shader.dll and shader.mi

If you want to place them to custom path

example - D:\shaders\mentalray\

You must to set Maya environment to let Maya know what shader do you install

In common, Maya.env in C:\users\<Username>\documents\maya\<MayaVersion>

We just add two line

MI_CUSTOM_SHADER_PATH=D:\shaders\mentalray\include

MI_LIBRARY_PATH=D:\shaders\mentalray\lib

In here, "lib" just a classify, you also could be place in D:\shaders\mentalray

Best is create yourself AETemplates directory and icon directory

You will not get messy in many file

Try to add 

MAYA_CUSTOM_TEMPLATE_PATH=D:\custom\maya\2015-x64\AETemplates

XBMLANGPATH=D:\custom\maya\2015-x64\prefs\icons

Their are AETemplate & Icons for yours

MI_CUSTOM_SHADER_PATH & MI_LIBRARY_PATH make Maya got custom shaders

Finally, we find C:\Program Files\Autodesk\mentalrayForMaya2015\maya.rayrc

open it and add

registry "{DSO}" value "dll" end registry

registry "{_CUSTOM_SHADERS}" value "D:/shaders/mentalray" end registry

link "{_CUSTOM_SHADERS}/lib/shader.{DSO}"

mi "{_CUSTOM_SHADERS}/include/shader.mi"

Complete install, we now can be use custom shader in Maya

Following reference :

https://knowledge.autodesk.com/support/maya/learn-explore/caas/CloudHelp/cloudhelp/2015/ENU/Maya/files/GUID-3A452245-0676-4FFB-AAF5-72A10F77C54C-htm.html

https://knowledge.autodesk.com/support/maya/learn-explore/caas/mne-help/global/docs/maya2014/en_us/files/mrfMS-Load-shaders-htm.html