For quick answers to general usability questions, we recommend your visit our friendly Trainz forums,
To submit a Support Ticket, click on the Troubleshooter Button, then follow the steps through to the appropriate Category. Login using your Simulator Central or MyTrainz Username and Password.
How do I adjust post-processing?
Posted by N3V Games (Paul) on 27 July 2015 01:13 PM
If you start the game with post-processing on (which it is by default) you can change the slider and it will change the settings (and normally this is quite dramatic).
If you want to experiment with the settings, go to Trainz Launcher > Trainz Settings > Developer then Advanced Debug Settings
View this wiki page for more details on the individual settings.