Computer games have the option available to change the game's resolution, which changes how many pixels the game is displayed by. Years ago, a common resolution was 800 by 600 pixels. Since then, the resolutions have increased drastically and provide a much better view. Changing resolutions can be very simple and can be done quickly. When you increase a resolution, objects appear smaller but you have a larger area to view them in.
Instructions
1
Run your Garry's Mod game.
2
Select "Options" from the Garry's Mod main menu. Select the "Video" tab.
3
Select the drop-down "Resolution" tab.
4
Scroll to and select the resolution you want to run your Garry's Mod game in.