Photoshop Live Curves understanding LUTs
Want to see what LUTs are doing to your footage in terms of curves? Los Angeles-based photographer and retoucher Edmon Amiraghyan has created a special PSD file called Live Curves. It’s simply a Document window that contains a Curves view of the document that updates in real time.
Usually used by photographers you can use it to understand how to get that "LUT" look yourself by using curves in DaVinci Resolve, After Effects, Photoshop, etc.
Just open the Live_Curves.PSD file in Photoshop and add the adjustment layer "Color Lookup". In the properties of Color Lookup load your 3DLUT File and watch what happens to the curves. Get the PSD file from Petapixel.