
Photoshop can load a 3D LUT but it's a clumsy place to design one. Build the look in Luttie against a real reference frame, export a .cube, and apply it as a non-destructive adjustment layer.
Exports .cube, .3dl, .look — no plugin or extension to install.
Building the look
The three things worth knowing before you blame the LUT.
Clip it if you don't want it on everything
An adjustment layer affects every layer beneath it. Alt-click (Option-click) between the layers to clip it to just the one below.
Layer opacity is your strength control
There's no intensity slider on Color Lookup itself. Running the layer at 65% is the clean way to apply a look at partial strength.
Drop it in the 3DLUTs folder to keep it handy
Copying the .cube into Photoshop's Presets/3DLUTs folder makes it appear in the dropdown, so you don't browse for it on every file.
Add a Color Lookup adjustment layer (Layer → New Adjustment Layer → Color Lookup), then in its properties choose 3D LUT File → Load 3D LUT… and select the .cube. The layer is non-destructive, so you can adjust or remove it at any point.
Photoshop can export a .cube via File → Export → Color Lookup Tables, but it renders whatever adjustment layers are on the current document, which makes it fiddly to control. Building the look in a tool designed to output a LUT is more predictable.
Yes — a .cube is a .cube. The same file loads in Premiere, Final Cut, Resolve, and CapCut, which is the point of exporting one rather than saving a Photoshop action.
Build your grade in the browser and export a .cube for Color Lookup.
Free to grade and export watermarked previews. Pro — from $11.99/mo or a one-time $68.99 lifetime licence — unlocks clean LUT export, and Luttie is fine to use for commercial and client work.