Setting up triple screens in Straight4 Studios' simulation, Project Motor Racing, requires configuring the native display settings introduced across post-launch updates. Triple-screen support initially arrived as an experimental Alpha feature in Update 2.1 before transitioning to an integrated Beta feature in Version 2.2. On modern builds, PC racers no longer need third-party rendering wrappers or command-line switches to run three displays.
Because the feature remains in an active Beta state, proper setup requires adjusting internal FOV geometry and knowing how to recover if the game fails to boot after applying multi-monitor resolutions.
How to Enable Native Triple Screens
Following Version 2.2, triple-screen functionality is integrated directly into the standard PC options menu. You do not need external desktop-stretching software to engage three displays.
- Launch Project Motor Racing and go to Settings from the main menu.
- Select the Triple Screen menu tab.
- Set the mode selection from None to Triples. The interface also provides a Widescreen option intended for single ultra-wide monitors.
- Input your physical rig measurements across the configuration fields:
- Eye Distance: The direct distance measured from your eyes to your center screen.
- Central Monitor Width: The horizontal width of your center display panel.
- Left Screen Angle: The inward angle (in degrees) of your left monitor relative to the center panel.
- Right Screen Angle: The inward angle (in degrees) of your right monitor relative to the center panel.
- Bezel: The frame thickness between your displays to prevent bezel distortion.
- Select Confirm. The game will prompt for a restart to initialize the new multi-display viewport.
- Once restarted, note that the main menu renders strictly on the center screen. Your side monitors activate automatically once you enter a live driving session or pit lane.
Fine-Tuning Cockpit FOV and In-Game Mirrors
After the three screens are active in a session, you must dial in your driver seat position and side mirrors to eliminate car distortion across the monitor seams.
Open Cockpit Setup from the in-session menu to access driver camera adjustments. Move the seat forward or backward using the slider until the virtual seat bolsters do not intrude on your side monitors. While in Cockpit Setup, you can also adjust the physical angle of both exterior wing mirrors and the center rearview mirror. The game allows independent left, right, and vertical yaw adjustments for mirrors, ensuring you can align the horizon across the side panels.
In testing builds, trackside replays render exclusively across the center monitor rather than spanning all three displays. This is normal behavior during the feature's active development phase.
Launch Options: Alpha vs. Beta Differences
The procedure for activating multi-monitor setups changed significantly between early development patches:
| Feature Setting | Update 2.1 (Early Alpha) | Version 2.2 Onward (Beta) |
|---|---|---|
| Steam Launch Parameter | Required: -allowExperimentalRenderUI | None required (removed) |
| Configuration Location | In-game menu unlocked via launch parameter | Native Settings menu by default |
| Desktop Surround Tools | Disabled to avoid resolution conflicts | Works with or without driver-level spanning |
If you are running an archived build of Update 2.1, you must right-click Project Motor Racing in your Steam Library, select Properties, and enter -allowExperimentalRenderUI in the Launch Options field. For Version 2.2 and later, this parameter should be removed.
Recommended Graphics and Anti-Aliasing Settings
Triple-screen rendering places a heavy load on GPU hardware because the engine must project three distinct viewports simultaneously.
Community testing shows that NVIDIA DLSS is frequently grayed out or restricted when running multi-monitor setups in borderless windowed modes. When DLSS is unavailable, TAA (Temporal Anti-Aliasing) is the recommended post-processing option. While DLAA offers sharp rendering, it incurs a substantial performance cost on triple-screen resolutions. Testing on high-end hardware shows that selecting TAA smooths out common edge flickering and shadow artifacting across side screens while sustaining target frame rates near 60 to 70 FPS.
Troubleshooting Startup Crashes and Freezes
A widespread issue during the triple-screen rollout occurs when the game refuses to launch or gets stuck in a boot loop immediately after confirming triple-screen settings and restarting.
Resetting Resolution in game.xml
If the game crashes on launch or freezes on the loading screen, the engine is failing to initialize the combined resolution span. You can recover without reinstalling:
- Close Steam or end the game process in Task Manager.
- Open Windows File Explorer and navigate to your documents folder: Documents > My Games > ProjectMotorRacing.
- Right-click the file named game.xml and open it with Notepad.
- Locate the display section under the graphic tag.
- Change the width value back to the native width of your single center screen (for example, 1920 for 1080p, 2560 for 1440p, or 3440 for ultrawide).
- Save the file and close Notepad.
- Launch the game normally.
If manual file edits fail to restore startup, deleting the game.xml file entirely forces the game to regenerate default display settings upon the next boot.
Resolving Driver-Level Display Conflicts
Running NVIDIA Surround or AMD Eyefinity alongside Project Motor Racing's internal triple-screen tool can trigger conflicting resolution calls. If you encounter crashes or stretched menu elements:
- Open NVIDIA Control Panel or AMD Software and disable Surround or Eyefinity display grouping.
- Confirm that your primary center monitor is marked as the primary display in Windows Display Settings.
- Launch Project Motor Racing on a single screen and ensure your resolution matches your native center display.
- Enable triple screens via the in-game Settings menu, confirm your physical monitor dimensions, and allow the application to restart.
Frequently Asked Questions
Does Project Motor Racing require NVIDIA Surround for triple monitors?
No. While earlier workarounds relied on desktop spanning software or ReShade shaders, native triple-screen rendering in Version 2.2 and later calculates angles and bezels directly within the game engine. NVIDIA Surround can be disabled.
Why do my side monitors stay black on the main menu?
The user interface and menu screens in Project Motor Racing are locked to a single 16:9 or primary center display. The left and right monitors only render when you load onto a track in a practice, qualifying, or race session.
What should I do if the steering wheel moves wildly in the menu after enabling triples?
This is a known control-binding conflict reported on certain direct-drive wheelbases (such as Simagic hardware). Navigate to Settings > Controls and clear any conflicting navigation arrow bindings assigned to the wheelbase axes by pressing X on the keyboard.
Can I run DLSS while using triple screens?
In testing of Update 2.1 through Version 2.3, DLSS is frequently disabled or grayed out when triple-screen rendering is engaged. Racers should use TAA or FSR options in the graphics settings to manage frame rates.
