From WSGFWiki

Introduction

I wrote this little guide for myself, preparing the arrival of my Dell 2005FPW and of course tweaks for games with proper aspect ratio. The easiest way to use this is pick the RESOLUTION for your game and follow the formula. Also copying and pasting this to NOTEPAD with MONOSPACED fonts will make it more READ-ABLE =)

I hope it helps people out. And for the record 1280x768 is 16:9.6 Aspect Ratio according to my calculations. Please don't bash me if any information is wrong. I'll correct them if proven wrong.

FOV Conversation (By Resolution/Ratio)

Resolutions: 1280x800 / 1680x1050 / 1920x1200

16:10 = 19.2:12
4:3 = 16.0:12

FOV = 2 * INVTAN[(19.20/16.00)*TAN(90/2)]
= 2 * INVTAN[1.2*1]
= 2 * 50.194428907734805993720510180702
= 100.388857815469611987441020361400

Resolutions: 1280x768 / 1600x960 / 1920x1152

16:9.6 = 16.00:9.6
4:3 = 12.80:9.6

FOV = 2 * INVTAN[(16.00/12.80)*TAN(90/2)]
= 2 * INVTAN[1.25*1]
= 2 * 51.340191745909909395994137664827
= 102.680383491819818791988275329650

Resolutions: 1280x720 / 1600x900 / 1920x1080

16:9 = 16:9
4:3 = 12:9

FOV = 2 * INVTAN[(16.00/12.00)*TAN(90/2)]
= 2 * INVTAN[1.3333333333333333333333333333333*1]
= 2 * 53.130102354155978703144387440907
= 106.260204708311957406288774881810

FOV Conversion (Game Examples)

UT/UT2003/UT2004

Default FOV = 90
16:10 FOV = 100.38886
16:9.6 FOV = 102.68038

FullscreenViewportX = 1680
FullscreenViewportY = 1050
MenuViewportX = 1280
MenuViewportY = 720

COD/CODUO

Default FOV = 80
16:10 FOV = 90.395093
16:9.6 FOV = 92.732987

seta r_customwidth = 1680
seta r_customheight = 1050
seta r_mode = -1
seta cg_fov = 90.395093
com_introplayed = 1

Disclaimer, Author & Feedback

The WSGF makes no warranty on the usage of this information/tutorial. Use this information at your own risk, and use common sense. This tutorial was originally authored by blisstik (with help from other forum members). If you have any questions or comments about this tutorial, please post into the original forum thread.