===== Adjusting FOV for Widescreen =====

By default Quake uses a FOV (field of view) of 90. You can set a higher FOV to distort your view to see more to the sides of the screen. Setting a higher FOV also means that the center of the screen will be "zoomed away".

If you are using a widescreen resolution to play Quake and keep the FOV of 90, you will actually play with a zoomed-in view instead of a realistic one. Widescreen means you should be able to see the same stuff like before but with additional space on the sides.



[[http://www.quakeworld.nu/forum/viewtopic.php?pid=56610#p56610|Lordhavoc was so nice to share the formula]]:

''atan(tan(120*pi/360)*0.75*resolution_x/resolution_y)*360/pi''

For your convenience, here is a table of some more or less common resolutions and the resulting FOV values.

|      ^ fov 90 ^ fov 100 ^ fov 110 ^ fov 120 ^
^ 5:4  |  86.31 |  96.34  | 106.49  | 116.75  |
^ 4:3  |  90    | 100     | 110     | 120     |
^ 3:2  |  96.73 | 106.56  | 116.20  | 125.67  |
^ 8:5  | 100.39 | 110.07  | 119.47  | 128.61  |
^ 5:3  | 102.68 | 112.25  | 121.49  | 130.42  |
^ 16:9 | 106.26 | 115.63  | 124.59  | 133.17  |


  * 5:4 (1.250) resolutions are 1280x1024 and 2560x2048
  * 4:3 (1.3333) resolutions are 320x240, 640x480, 768x576, 800x600, 1024x768, 1280x960, 1400x1050, 1600x1200, 2048x1536. For these you do not need to adjust the FOV.
  * 3:2 (1.5000) resolutions are 480x320, 720x480, 960x640, 1152x768, 1440x960
  * 8:5 (1.6000) resolutions are 320x200, 1280x800, 1440x900, 1680x1050, 1920x1200, 2560x1600
  * 5:3 (1.6667) resolutions are 800x480 and 1280x768
  * 16:9 (1.7778) resolutions: 1280x720 and 1920x1080

                                               
As you can see, if you use the equivalent of FOV 90 on eg 1680x1050 you get a FOV of 100 with no visual distortion. That's what widescreen gives you!



Some other resolutions: 
|      ^ fov 90 ^ fov 100 ^ fov 110 ^ fov 120 ^
^ 854x480 | 106.30 | 115.67 | 124.62 | 133.21 |
^ 1024x600 | 104.00 | 113.51 | 122.64 | 131.44 |
^ 1280x854 | 96.688 | 106.52 | 116.16 | 125.63 |
^ 1366x768 | 106.29 | 115.66 | 124.61 | 133.19 |
^ 2048x1080 | 109.78 | 118.92 | 127.57 | 135.81 |