From WSGFWiki

Game Information

By: Ion Storm, Eidos Interactive
Genre: Sci-Fi, RPG/FPS
Release Date: December 2, 2003
Players: 1
Version: 1.2 - Steam version (shouldn't matter)

The sequel to Deus Ex.

Widescreen Support

Method

Hack, ini and hex adjustments

Step 1; Resolution:

Go to; My Documents\Deus Ex - Invisible War. Open user.ini and find the following (probably close to the bottom) to set your resolution;

FullscreenViewportY=xxx
FullscreenViewportX=xxxx

Step 2; HUD size:

Go to; ...\deus ex invisible war\System. Open default.ini and find the "FOV__d=" setting.
There's no "correct" setting as such, but for the purpose of screen shots I've used these values;

4:3;
FOV__d=67

16:10;
FOV__d=58

16:9;
FOV__d=53

Smaller values for wider aspect ratios.

Step 3; Field of View:

In the same folder (...\deus ex invisible war\System) open the Engine.d2u file with a hex editor. It would be wise to make a backup copy of this before editing anything. I know that's obvious, but safety first.

Search for the hex string "AA 42". Before I go any further, here's what that means (I think);

---
Hexadecimal value | AA | 24 |
---
Decimal value | 170 | 66 |
---
Engine value | fov 85 | float |
---

You should find three instances of this string that represent the following values (I think);

FOVAngle=85.000
DesiredFOV=85.000000
DefaultFOV=85.000000

The three "AA" values will be changed. The "42" part must be left alone.

For 16:10;
change "AA" to "CC"
giving you an FOV of 102

For 15:9;
change "AA" to "D4"
giving you an FOV of 106 (untested, but mathematically, has to be correct)

For 16:9;
change "AA" to "E3"
giving you an FOV of 113.5

I am aware that these aren't the orthodox numerical adjustments, but they are correct. Below is a picture which I'm hoping will be pretty self explanatory.

In the Unreal Engine 2 Runtime (which is what I used to figure this out) the FOV is set to 85 in the source code, but overridden to 90 in the User.ini. So if you want to use a derivative of the more standard FOV 90 setting, make one of these adjustments;

For 4:3;
change "AA" to "B4"
giving you an FOV of 90

For 16:10;
change "AA" to "D8"
giving you an FOV of 108

For 15:9;
change "AA" to "E1"
giving you an FOV of 112.5 (again untested, but...)

For 16:9;
change "AA" to "F0"
giving you an FOV of 120

And another three screen blend;

For these FOV settings I used the hex editor available here. It's freeware and doesn't require installation, so yay.

First unpack the xvi32.zip, open XVI32.exe and use it to open the Engine.d2u file in the ...\deus ex invisible war\System folder. Next use the Search-->Replace... function and you'll see this window;

That's how it would be filled in for an FOV of 108. Notice the "D8", that's where your new value goes. You'd put "B4" for an FOV of 90 and so on. Next just hit Replace all and you should see this;

Hit OK, save and you're done.

Screen change

Hor +

1200x900, fov90, FOV__d=67

1280x800, fov108, FOV__d=58

Surround Gaming support

None known.

Known Issues

he intro and ending cutscenes are prerendered bink files. They stretch. These can be re-encoded to a widescreen ratio. The rather involved process can be found in the Detailed Report.

Condensed detailed report

WSGF links

Detailed Report - http://www.widescreengamingforum.com/forum/viewtopic.php?t=10546

External links

http://www.eidosinteractive.co.uk/gss/dxiw/