[mtoa] Arnold batch rendering flags

MtoA defines a lot of batch render flags for Arnold. For example, here’s how to set the Arnold log verbosity and enable file logging:

render -s 2 -e 2 ^
-r arnold ^
-ai:lve 2 ^
-ai:ltf true ^
-ai:lfn C:/Users/blairs/Downloads/render.log ^

First,  to use the Arnold batch render flags, you need to use the Maya -r flag to specify that the renderer is arnold (otherwise, you’ll get an “Invalid flag” error).

Then you can use the Arnold batch render flags:

  • ai:lve sets the log verbosity level
  • ai:ltf enables file logging (Log To File)
  • ai:lfn is the log file name. I used forward slashes; I could also have used backslashes and put quotation marks around the log file name.