render_uv_vray.py

import maya.cmds as cmds
import maya.mel as mel
import maya.OpenMaya as om

#Add Render Element Extra_Tex
mel.eval("vrayAddRenderElement ExtraTexElement")

#Rename Extra_Tex
cmds.rename("vrayRE_Extra_Tex", "vrayRE_Extra_Tex_UV")

#Set Consider for Anti-Aliasing to 0
cmds.getAttr("vrayRE_Extra_Tex_UV.vray_considerforaa_extratex")
cmds.setAttr("vrayRE_Extra_Tex_UV.vray_considerforaa_extratex", 0)

#Set Filtering to 0
cmds.getAttr("vrayRE_Extra_Tex_UV.vray_filtering_extratex")
cmds.setAttr("vrayRE_Extra_Tex_UV.vray_filtering_extratex", 0)

#Set Filename suffix to "UV"
cmds.getAttr("vrayRE_Extra_Tex_UV.vray_name_extratex")
cmds.setAttr("vrayRE_Extra_Tex_UV.vray_name_extratex", "UV", type="string")

#Create a Sampler Info Node
cmds.createNode("samplerInfo", n="samplerInfo_UV")

#Connect Sampler Info to UV
cmds.connectAttr("samplerInfo_UV.uCoord", "vrayRE_Extra_Tex_UV.vray_texture_extratexR")
cmds.connectAttr("samplerInfo_UV.vCoord", "vrayRE_Extra_Tex_UV.vray_texture_extratexG")

#Deselect SamplerInfo
cmds.select("samplerInfo_UV", d=True)

#Display Render Element UV created
om.MGlobal.displayInfo("Render Element UV created")