Watch Dogs PC graphics has been different from what was shown at E3.......

You can enable the E3 graphics in you're game by 'TheWorse Mod (0.7+Fix) for Watch_Dogs'......


What does the mod do?

Included in this mod(not all features are available yet):

Changes to the default fog values 
Enabled bokeh DOF for the main cameras 
Stuttering Improvements 
E3 2012 Bloom 
Performance Improvements 
Enabled Headlight Shadows 
LoD Changes 
Reflection changes 
Added 3 new cameras to the game(closer, normal, further) 
Rain changes(High quality rain drops, properly reacting to light, etc) 
LensFlares(WIP) 
Lighting changes(TESTING AND WIP) 
Civilians density changes 

How do I install the mod?
 
Extract the .rar file 
Once extracted, you will find 3 folders, they are called: 
Closer Camera
Far Camera
Normal Camera
The names of the folders above mean the distance the camera is away from the character (Aiden Pearce). So, the Closer Camera means the camera view is closer to Aidens
back/shoulder, Far camera means it is further away so you see more of Aidens body and Normal Camera is the normal default view.
Choose the folder that matches the camera view you want. 
Inside you will find 2 files - patch.dat and patch.fat  
Copy and Paste these two files into the folder called data_win64 that is in your Watch Dogs install directory. For example C:ProgramFilesUbisoftWATCH_DOGS or whereever you have the game installed on your computer. So to clarify, the 2 files need to go into the data_win64 folder. You will notice there are many .dat and .fat files already in there from when the game was installed. 
(Optional step) TheWorse designed this mod with the Ultra setting in mind to recreate the visuals from what was seen at E3 2012. 
To recreate this quality of graphics, the Ultra setting is recommended. 

It should be noted that many - if not all - of his mods will still work in the other graphics settings too, eg, Low, Medium and High. These 'overall' graphics settings of Low, Medium, High and Ultra is the first option in the Advanced Graphic Settings in the Main Menu in Watch Dogs.

Note: Back up ur save games and both of these just in case any error occurs....
I tested it with the normal camera and the graphics drastically changed especially at night time of the game and it's performance didn't go down as well........

ENJOY....