Okay everyone, i need you VISIBLE
screen sizes. Please measure the actual size of the display area (with an image showing so that you can tell where the display area ends).
A lot of the values you seem to be giving me are not the actual screen area - for example 1440*900 is 16:10 aspect ratio, but 48*27cm is obviously including bezels or something.
Apart from that your calculations seem correct although your answers are in radians - you will need to convert them to degrees (though i think you can do this by changing cell formatting).
Ginetto, you can go to very high resolutions if you use the opengl renderer. It is only the directx 7 one that is vastly limited.
Andreh: arctan is the same thing as tan-1
Can you give me your actual screen height? On the monitor's website i am not sure what the dimensions it is stating actually are. What is the difference between CTN Dimensions and dimensions?
Either way, neither seems to be the actual visible viewing area
dimensions - as they include a depth, which obviously the viewing area doesn't. I can't see the viewing area dimensions listed though, so you will probably have to measure yourself (or it might say in the datasheet if one came with it).
Also, how are you rendering across 3 screens? Matrox? Or ati eyefinity / nvidia surround ? If it is ati or nvidia, then it would be better if you can add bezel compensation and then tell me that resolution.
In some other news, i have worked out a formula to convert horizontal FOV to vertical FOV when you just know the FOV and the aspect ratio.
A useful thing about this is that you don't need to know the size of the screen or distance away from it, just one of the FOV values.
This can also be used to correct the trackside / onboard cameras when using an aspect ratio that isn't 4:3 (did you ever notice that this makes them zoom in? I am guessing they all use a 78 horizontal FOV, which would cause this on change of aspect ratio).
So i might make another thread about that if anyone is interested (the functionality could possibly be added to an automatic tool like gpl shift if possible, as the then user wouldn't be forced to edit all their cam files every time they changed aspect ratio