change arnold shader to vray using script

[no4access]

its not work on  maya 2017

'''
Convert Arnold Shader to VRay shader
'''
from pymel.core import *


selected = ls(materials=True, sl=True)

for g in selected:


'''check for arnold mat'''

if(nodeType(g) == "aiStandard"):
sg = g.listConnections(type='shadingEngine')[0]
mesh = sg.listConnections(type='mesh')
n = shadingNode('VRayMtl', asShader=True, name='vr_'+g)

#Make array with all the attributes that need to be compared, Arnold material attribute first, VRay material attribute second


attrList = \
[('color','color'),\
('Kd','diffuseColorAmount'),\
('diffuseRoughness','roughnessAmount'),\
('Ks','reflectionColorAmount'),\
('KsColor','reflectionColor'),\
('specularRoughness','reflectionGlossiness'),\
('specularAnisotropy','anisotropy'),\
('specularRotation','anisotropyRotation'),\
('reflectionExitColor','reflectionExitColor'),\
('Kt' ,'refractionColorAmount'),\
('IOR','refractionIOR'),\
('refractionRoughness','refractionGlossiness'),\
('KtColor','refractionColor'),\
('Fresnel','useFresnel')]

#Connect maps if available, otherwise adjust values/colours

for a in attrList:
if connectionInfo(g + "." + a[0], id=True):
outAttr = listConnections(g + "." + a[0], p=True)[0]
inAttr = (n + "." + a[1])
connectAttr(outAttr, inAttr)
else:
outAttr = getAttr(g + "." + a[0])
inAttr = (n + "." + a[1])
setAttr(inAttr, outAttr)
roughnessCheck = ['specularRoughness','refractionRoughness']

if a[0] in roughnessCheck:
newVal = 1-int(cmds.getAttr(inAttr)*1000)/1000.0
cmds.setAttr (inAttr, newVal)

#If there is a bump map, connect it and adjust the multiplier
listAttr(g)
if connectionInfo(g + ".normalCamera", id=True):
outAttr = listConnections(g + ".normalCamera")[0]
outValue = listConnections(outAttr + ".bumpValue", p=True)[0]
inValue = (n + "." + 'bumpMap')
connectAttr(outValue, inValue+"R")
connectAttr(outValue, inValue+"G")
connectAttr(outValue, inValue+"B")
outDepth = getAttr(outAttr + ".bumpDepth")
inDepth = (n + "." + 'bumpMult')
setAttr(inDepth, outDepth)

vraySG = sets(renderable=True, noSurfaceShader=True, empty=True, name='vr_'+g+'_SG')
# connect the mat and SG
connectAttr(n+'.outColor', vraySG+'.surfaceShader', force=True)
sets(vraySG, forceElement=mesh)

[haggi_master]

Thanks for sharing the script. But did you only want to share it or do you have any problem with it?