How to Export a LUT from Your Color Grade

If you've built a color grade you're happy with — a warm cinematic look, a moody desaturated style, a consistent aesthetic for your brand — exporting it as a .cube LUT lets you apply it to any footage in seconds, in any professional video editor.

Here's how to do it in Luttie, and how to use the exported file in Resolve, Premiere, Final Cut, and CapCut.

What a LUT Export Actually Does

When you export a LUT, Luttie samples your grade at 33×33×33 points across the full colour space and records the output value for each input colour. The resulting .cube file is a complete description of your colour transform — every input colour mapped to its graded output.

This means the LUT captures everything: your curves adjustments, colour wheel pushes, HSL secondary tweaks, vignette, and any loaded LUT preset. It's a single file that applies your entire grade in one step.

Step 1 — Build Your Grade in Luttie

Go to luttie.app/editor and upload an image representative of your footage. This is the image you'll grade — the exported LUT will encode whatever you do here.

Use any combination of:

• Basic Correction — exposure, contrast, highlights, shadows, whites, blacks, saturation
• Curves — master, R, G, B channels
• Colour Wheels — shadows, midtones, highlights
• HSL Secondary — target specific hue ranges
• Creative — apply a base LUT preset or your own uploaded .cube
• Vignette — if it's part of your look

Work until the grade looks exactly how you want it. The exported LUT will be a snapshot of this exact state.

Step 2 — Export the LUT

Scroll to the bottom of the right panel and click Export LUT (.cube). Luttie processes the grade and downloads a luttie-export.cube file to your computer.

The file is a 33-point .cube — the industry standard format supported by every professional NLE and colour grading application.

Step 3 — Apply in Your NLE

DaVinci Resolve

1. Open the Color page
2. Right-click the LUTs panel → Import LUT → select your .cube
3. Drag the LUT onto a node, or right-click a clip → LUTs → select it
4. Adjust the node's Key output to control blend strength

Premiere Pro

1. Open Lumetri Color panel
2. Go to Creative → Look → Browse
3. Navigate to your .cube file and select it
4. Use the Intensity slider to control strength

Final Cut Pro

1. Select your clip in the timeline
2. In the Effects Browser, find Custom LUT
3. Drag it onto your clip
4. In the Inspector, click Choose Custom LUT → select your .cube

CapCut

1. Go to Adjust → Filter → LUT
2. Tap the + import button
3. Select your .cube file
4. Adjust intensity with the slider

Tips for Better LUT Exports

Grade on a representative frame. A LUT built on a golden-hour landscape may look wrong on a dark interior scene. The LUT encodes the relationship between input and output colours — that relationship depends on the colours in your reference image. For versatile LUTs, grade on a frame with a full tonal range and neutral-to-warm colour temperature.

Apply a log correction first if grading log footage. If your footage is in D-Log M, S-Log3, or C-Log3, apply the technical correction LUT in the Creative section before building your creative grade. The exported LUT will include both — the technical correction and the creative look — in a single file.

Test on hard shots. After exporting, apply the LUT to a few different frames from your footage — ones with extreme highlights, underexposed scenes, and skin tones. A LUT that looks great on your reference frame may clip highlights or shift skin tones on other material. Adjust and re-export if needed.

Save the grade as a preset too. Before exporting, save it as a user preset in the Creative section. You can refine it in Luttie later and re-export without rebuilding from scratch.