Best visuals achieved with Wiedzmin Lighting. (Preferably v8. if you still have it.)

Installation
1. Download Reshade version 3.1.0.
2. Run the "Reshade_Setup_3.1.0.exe" and follow instructions. 'Yes' do download effects.
3. Download my Reshade file in the files section.
4. Put the "Immersive Visuals.ini" in the main Witcher 3 directory, where the .exe is located.
5. Load up the game, and press "F2" or "PG UP" to open the Reshade menu.
6. Follow instructions in menu, and select the "Immersive Visuals.ini"
7. For best loading times of the reshade go to second tab, and select 'Performance mode". 
8. Alternatively you can change the menu key, effect toggle key and every single key to your preferred version. The Reshade UI is very easy to use, you'll be fine.

Uninstallation
1. Remove the following files: 
-reshade-shaders 
-dxgi.ini 
-dxgi.dll 
-dxgi.log  
-Immersive Visuals.ini