Refer to the README.txt included with the download for install instructions. I made it *VERY* simple for everyone to install.
I will update the download link once I fully create and tweak my own personal preset to make the colors look similar to the promo screenshots.
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Even though this video is rendered in a 4K resolution, it is compressed and still does not do justice to how the game actually looks when you're playing it in motion.
The RAW video file was 64gb, the compressed video ended up being 789mb.
I will attempt to make another video and take my time rendering it in better quality than this in order to show the graphics in different time cycles.
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Check out the screenshots below which provide a better idea of the quality you can achieve with the ReShade/SFX preset setup.
Note that my in-game settings were completely maxed out.
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Do you have a really high-end PC that you want to push for The Witcher 3? If you're an Nvidia user like me, go to your Nvidia Control Panel and under Manage 3D Settings, click Global and enable "DSR" with 20% smoothing. Then click Program Settings, click Add and add the Witcher3.exe file from your computer. You can tweak your settings to enhance Anti-Aliasing.