Right-clicking the Render Message Window displays a pop-up menu with some options for displaying and managing these messages.
The preferences in this section are shortcuts to the . Changing a preference here changes it in the Preferences dialog, and vice versa.
When on, displays informational messages in the Messages Window. Default=off.
When on, displays progress messages in the Messages Window. Default=off.
When on, writes debug messages to the log file, if one has been specified. Default=off.
Debug messages are never displayed in the Messages Window. The renderer can generate a large number of them, which would make the window hard to read.
Whenever the renderer detects an error, it generates an error message. When this option is on, the Messages Window is displayed and the error message appears in it. Default=on.
The preferences in this section are also shortcuts to the Rendering preferences. Changing a preference here changes it in the Preferences dialog, and vice versa.
When on, generates a log file. Default=off.
The other log file options are unavailable unless you turn on Write Messages To File: