arnold to maya

for a in cmds.ls(type=['aiStandardSurface','aiLayerShader']):
    if 'Rim' in a:
        cmds.delete(a)
    else:
        override_shader = a+'_as_Phong'

        if not cmds.objExists(override_shader):
            cmds.shadingNode('phong',asShader=1,n = override_shader)

        ai_shader_connections =  cmds.listConnections(a,c=1,p=1)
        shdr_engine_plug = ai_shader_connections[1]
        ai_shader_clr = ai_shader_connections[0]

        if shdr_engine_plug.endswith('surfaceShader'):
            try:
                cmds.connectAttr(ai_shader_clr,override_shader+'.color')
            except:
                pass
            cmds.disconnectAttr(ai_shader_clr,shdr_engine_plug)
            cmds.connectAttr(override_shader+'.color',shdr_engine_plug)
            cmds.connectAttr(ai_shader_clr.replace('outColor','transmission'),override_shader+'.transparencyR')
            cmds.connectAttr(ai_shader_clr.replace('outColor','transmission'),override_shader+'.transparencyG')
            cmds.connectAttr(ai_shader_clr.replace('outColor','transmission'),override_shader+'.transparencyB')


for r in cmds.file(q=1,r=1):
    cmds.file(r,ir=1)