A fix by mike_ar69 & DarkStarSword

Assembler and alternate wrapper by Flugan

3DMigoto improvements by Bo3b and DarkStarSword

Profile and 1.10/1.21 update by Helifax

Special thanks to everyone on the forum who helped out with testing!

The Witcher 3 - Patch 1.21 Update

Fixed so far:
- Decals (quite a lot of them)
- Rain splashes /drops
- Blood
- Hairworks shadows
- Fixed witcher senses bubbles & warp bubbles so they now are at proper depth.
- Crosshair is pushed to DEPTH
- All other UI is still at FIXED depth.
- Stars at night (thx SKAUT) for the savegame and pointing it out;)

- I added presets for different convergence levels on Keys "Z" and "XBOX-RIGHT_THUMB_PRESS". - The Witcher Senses bubbles are also aligned for these 2 convergence values and might not work for others (haven't tested).

- I recommend using these presets to play the game (if you aren't already using something like this). One if for Cutscenes/Interior the other is for outside:)

Fixed

• Lights
• Shadows
• Global illumination
• Specular highlights
• Environmental reflections
• Decals
• UI Depth adjustment added (cycle with ~ key)
• Hairworks MSAA one-eye transparency
• Hairworks glitch at specific depth from camera
• Hairworks shadows
• Light shafts
• Sun & moon depth
• Sun & moon reflection in water
• Approximate fix for water environment reflection probes (Note that an SLI bug affects these - see below)
• Approximate fix for direct reflections on water

Installation

1. Use driver 358.87 (Newer drivers may work as well, but this the recommended driver for this game as it is known to work well for a lot of people, including Windows 10 users).
   
2. Install Helifax' custom profile for The Witcher 3. Note that you will have to repeat this any time you reinstall the nvidia drivers (instructions summarised from here):
   
   1. Download Geforce 3D Profile Manager.exe attached to this page
      
   2. In the "C:\ProgramData\NVIDIA Corporation\Drs" folder delete the nvdrssel.bin file (It will get automatically generated on profile import).
      
   3. In Geforce 3D Profile Manager, choose "Export SLI Profiles" and save the NVIDIA Profiles.txt somewhere.
      
   4. Open NVIDIA Profiles.txt in notepad (other editors may corrupt the file's non-standard encoding) and search for "Witcher 3". Remove the existing profile and replace it with this one:
      

      Profile "The Witcher 3"
          ShowOn GeForce
          ProfileType Application
          Executable "witcher3.exe"
          Executable "witcher3release.exe"
          Setting ID_0x00a06946 = 0x780020F5
          Setting ID_0x1033cec2 = 0x00000002
          Setting ID_0x1033dcd3 = 0x00000004
          Setting ID_0x70092d4a = 0xb19c3533 InternalSettingFlag=V0
          Setting ID_0x701eb457 = 0x2241ab21 InternalSettingFlag=V0
          Setting ID_0x702442fc = 0x1c22fe24 InternalSettingFlag=V0
          SettingString ID_0x7049c7ec = "웪ꑌ" InternalSettingFlag=V0
          SettingString ID_0x7051e5f5 = "籪鸙" InternalSettingFlag=V0
          Setting ID_0x708db8c5 = 0x5c3300b3 InternalSettingFlag=V0
          Setting ID_0x708db8c5 = 0x3FF13DD9 UserSpecified=true
          Setting ID_0x709a1ddf = 0x4b1cd968 InternalSettingFlag=V0
          SettingString ID_0x70b5603f = "榛鳈⏙ꢗ" InternalSettingFlag=V0
          Setting ID_0x70edb381 = 0x24208b6c InternalSettingFlag=V0
          Setting ID_0x70f8e408 = 0x80b671f3 InternalSettingFlag=V0
          Setting ID_0x709a1ddf = 0x4b1cd968 InternalSettingFlag=V0
          Setting ID_0x709adada = 0x37f58357 InternalSettingFlag=V0
      EndProfile
      

   5. In the "C:\ProgramData\NVIDIA Corporation\Drs" folder delete the nvdrssel.bin file. (if it got generated).
      
   6. In Geforce 3D Profile Manager, choose "Import SLI Profiles" and select the modified NVIDIA Profiles.txt
      
3. Extract 3Dfix-Witcher3-1.21 into the game directory. If done correctly, the d3d11.dll file should be in the same directory as witcher3.exe.
   
4. Make sure that "Enable advanced in-game settings" is enabled in the NVIDIA control panel under Set Up Stereoscopic 3D -> Set keyboard shortcuts.
   
5. Launch the game. If 3D does not kick in change the video settings to exclusive full screen mode (This setting has a tendency to reset from time to time, so this step may need to be repeated on occasion).
   
6. Disable compatibility mode with Ctrl+Alt+F11 (check the green text to confirm that it is disabled - you should only need to do this once).
   

Keys and Configuration
~: Cycles UI depth between several presets. You may customise the default depth by editing the d3dx.ini and adjusting x under [Constants]. Negative numbers go into the screen, positive numbers will pop out. To customise the presets on the ~ key, find the [KeyHUD] section and adjust the list as desired.
When raining, raindrops will land on the camera. If you find this distracting you can disable it by editing the d3dx.ini file and setting x1 under [Constants] to 1.
Known Issues

• Sometimes after dying and loading a previous save the game may crash, or the 3D may glitch out. If this happens, restart the game.
  
• Possibly related to the above, sometimes HBAO+ may stop working correctly. If you see a false ambient occlusion shadow appear to the right of objects, you can press F11 to quickly disable HBAO+ without having to use the menus. This is often an indicator that the 3D is going to die or that the game may even crash soon, so it is recommended to save your game and restart as soon as possible.
  
• On SLI systems, water in certain areas may display an incorrect reflection (e.g. reflecting clouds from the sky while underground). These false reflections can be disabled by pressing F3.