There are two approaches to the 1:1 representation.
- What we all do; fiddling with the FOV.
- Get such big monitors that the image on your monitors is as big as what you see through the windows of a car.
The second choice is nearly impossible because you need really big monitors. The first choice is a preference. You can go from a triple 24 inch monitor setup to a triple 65 inch monitor setup.
You can also choose between different aspect ratios. You can go for the standard 16:9 monitors or get a triple 21:9 or even a 32:9 monitor setup.
You have to take into consideration the resolution of one monitor. The bigger the resolution multiplied by 3, the harder it is for your gaming computer to get decent FPS. But these things you probably already know that.
The size of the monitors depends on how much you want to spend on monitors, how much room you have for a triple monitor setup, how far you are going to sit from your monitors.
The smaller the monitors, the smaller the real estate of the monitors, the closer you have to sit, the smaller your FOV has to be for a 1:1 representation.
The opposite is true for bigger monitors.
The angle of your side monitors is a personal preference.
Keep in mind:
- the bigger the monitors, the more real estate and the further you can sit from your monitors
- The bigger the monitors, the greater the FOV the more of the dashboard and the surroundings of your car (on all three monitors) you'll see.
My personal problem with a triple monitor is; I want to make it possible that the bezels of the centre monitor and the side monitors are where the A-pillar of the car is. If your monitors are too small, the bezels of the right-hand side monitor will coincide with the middle of the dashboard, which will give an unrealistic image.
Example:
FOV calculator as mentioned in my previous post.