> Thanks, I go to try this when my render in works will stop.
OK but I still find it odd you get an error when using Y as a parameter.
What is the exact error you get, can you copy and paste it here for us
to see?
If you copy the below code into an empty POV document (so just 1 line) -
does it work?
#local xyYtoR = function (x,y,Y){ x+y+Y }
