FOV clarification

I need some pointers and clarification about FOV in Assetto Corsa... see, I'm not really sure AC actually uses vertical FOV.

My correct vertical FOV would be 46 - and in Stock Car Extreme, it seems to be right, apexes go where I would expect, and I feel comfortable in the car, I easily hit my turn-in and braking points.

If, however, I set Assetto Corsa to 46, it for start looks vastly different than SCE - well, lets say the seating position is different. Next, driving feels generally horrible - car feels understeery, I'm scared to push, I cant hit any apexes, I constantly brake too early or too late.

For a while I was not sure what was wrong, but recently I randomly got a FOV of 55 - and suddenly everything is vastly different and comfortable, and I enjoy driving in AC again. So... I guess 46 is way too low. 55 might be couple degrees too high, cars feel bit oversteery now, but I like it.

How is FOV calculated then in AC? It might actually be extremely important to know. To note - I dont have triple screens, and I can't use the ingame app.

EDIT: never mind, it seems the calculator is wrong... And in a roundabout way I can use triple screen rendering to calculate my single screen FOV, which is exactly 51.5... This calculator http://www.edracing.com/edr/FOV.php gives correct values.

 

Just out of curiousity, if your correct FOV is that high on a single monitor, how big is it?

 

that calculator seems to be calculating correctly and FOV in AC and GSC should be the same ... if you don`t consider seating, are proportions and distances the same? if you load the same track on both games and place yourself to the same possition .. also if you have single screen and your FOV is 46 .. you must be like sitting 59cm far from 40 inch screen (or under 50 from 32inch screen, etc) ... is it the case or are you putting incorrect numbers into calculator ? what the size of your screen and how far do you sit ?

 

Are you sure you got your number right?
http://www.projectimmersion.com/fov/index.php?m=1

 

21 inch monitor, 30 cm from my eyes. It was not the calculator, it was my error... first, the monitor is 21.5 inches, not 21, second, its 16:10, not 16:9... Still, GSCE feels and looks abit different. But 51.5 is my correct fov for sure... And it feels nice.

I also completely reinstalled the game, as in uninstalling and installing it again... It made significant differences on all fronts. I guess "verify cache" doesnt do a thing whatsoever.

 

man, it is your eyes and your bussines but 30cm is crazy close ..

 

No, its not a problem... its lcd monitor... are you looking at your smartphone from arm's length? What about oculus then, its less then 5 cm I would guess...

 

my phone has pixel density 368PPI and I`m looking at it from 35-45cm distance ... fullHD PC screen has pixel density usualy under 100PPI ..probably around 90PPI
Also the heat from a screen is much higher, the brightness typically too, you are are focusing on very close distance, pretty much on the edge of average human eye minimum focus distance, that is putting your eyes under stress ..
So there is a significant difference ... but as I say ... you eyes - your bussiness .. play the way you enjoy it!

and oculus is working in different way and can`t be comparet to it at all

 

30cm? Really? Does it mean that you have the wheel behind the screen?

You'd better to have an oculus rift because at that so small distance any move of your head will have a significant impact on your perception of the world.

 

Problem is the price tho... I can get realistic FOV without looking through a letterbox or spending around 1500-2000 dollars. Current setup cost me around 10 bucks. For 20 more bucks I made myself aluminium pedals with clutch, I made the brake feel pretty close to loadcell, and also an h-shifter that is probably significantly better than g-27 one.

The picture above is just driving with wrong FOV...

 

To give you an idea, I have a 27 inch monitor with the wheel right in front of it and I can't go any higher than 37 FOV, and that's with the seat right forward. I think the FOV calculator resulted in something a lot smaller.

 

Yep and for my 22 (also 16:10 as OPs) with bezel touching the wheel base and reasonable 50cm distance it is 33 vFOV

 

My monitor is 20 cm infront of the steering wheel, lower bezel is on level with the top of the wheel.

Heres a picture taken with a potato:



When I'm not racing, I remove the wheel from the table and push the monitor to the side.

 

For a ingame value, such as default 56º, lateral FOV is dependent on the monitor's aspect ratio, and this can be a bit confusing when set on other than the intended AR (possibly 16:9).
On a 16:9 1920x1080 monitor I can see more to the sides than in the other 16:10 1680x1050 with the same FOV value set. Instead of having more fov up and down on 16:10, 5:4, 3:4, the lateral image is cropped while keeping similar "height".

If the same 16:10 1680x1050 monitor is set with a 16:9 resolution (1680x945) with black bars over and under, FOVs will match. Else, approximately 62.2 on a 16:10 resolution at 1:1 will be needed to match the same 56 on native 16:9 (and respectively, a 16:10 resolution set at 56 has approximately the same lateral view as a 16:9 set to 52.3).

 

Well it is vertical FOV so it kind of make sense it would be higher on 16:10 screen

 

Sorry, I don't quite understand that comment and photo. Are you saying that you drive with the steering wheel behind the monitor?

 

Gee....that's tight.

 

Yes, exactly. Why not? I also turn on the ingame steering wheel and set it so it matches... pretty nice if you ask me.

 

That clarifies it all
Must be quite immersive, playing like that. Might be a huge strain for the eye, but you're the only one who can feel and act accordingly so who are we to blaim you for this setup?