Arnold can generate a log reporting all the steps needed to render an image and any warnings and errors encountered by the renderer. This log also provides detailed statistics that are useful for debugging, optimizing, and benchmarking renders. Note that an individual log file will be saved for each frame of animation that has been rendered.
Note, C4DtoA will save an individual log file for each frame of animation that has been rendered. You can also defined the padding manually by adding # characters to the path (e.g. c:\armold\log\my_scene_###.log)
Verbosity Level
Specifies the amount of information in the log messages, with Warnings being least and Debug most:
Console
Shows the log in the CINEMA 4D Console (in the Standard layout, click Extensions > Console to see the log).
File
If enabled a log is written to the specified file.
File path
Specifies the output path for Arnold log files. You can use environment variables. You can use padding (#) in the file name.
Max. Warnings
Limits the number of warning messages (of a similar type) that are sent to the log.