How to Create Custom LUTs for HitFilm

Creating custom Look-Up Tables (LUTs) for HitFilm is a powerful way to establish a consistent visual identity for your projects without relying on generic presets. A LUT is essentially a 3D matrix that maps input colors to output colors, allowing you to replicate a specific film stock, digital camera look, or artistic style with a single click. For many editors, the process feels intimidating, but it is actually quite logical once you understand the workflow. The core method involves creating a new adjustment node, dialing in your desired color grade using HitFilm’s color correction tools, and then saving that specific configuration as a `.cube` file. This file can then be imported back into HitFilm’s LUT manager. By following this structured approach, you move from guessing at settings to building a reusable library of professional-grade looks. Whether you are aiming for a cinematic teal-and-orange vibe or a desaturated, moody thriller aesthetic, mastering this technique gives you total creative control over your final image quality.

Understanding the LUT Workflow in HitFilm

Before diving into the technical steps, it is crucial to grasp how HitFilm handles color grading. Unlike some other NLEs, HitFilm uses a node-based color grading system. This means you aren’t just adjusting a single track; you are building a chain of effects. When you create a custom LUT, you are essentially freezing a specific chain of color adjustments into a single mathematical map. This is beneficial because it reduces CPU load during playback and ensures that your look remains consistent across different clips, even if the source footage varies slightly in exposure or white balance. Think of it as baking a cake: you mix the ingredients (your color adjustments) once, and then you can use that recipe (the LUT) for every future batch.

Step 1: Preparing Your Source Footage

Success with custom LUTs starts with good source material. You cannot fix bad footage, but you can enhance good footage. Select a clip that has good dynamic range and neutral colors. Ideally, this should be a shot with a flat color profile if possible, as this provides the most flexibility for grading. If you are using footage from a camera with a log profile, ensure you have already applied a base correction to bring it to a standard Rec.709 range before attempting to create a creative LUT. A common mistake is trying to create a creative look on top of uncorrected log footage, which results in muddy, inconsistent colors.

Step 2: Building Your Grade

Navigate to the Color tab in HitFilm and add a new Color Grade node to your clip. This is where the creative work happens. Start by adjusting the White Balance to ensure your neutrals are truly neutral. Next, use the Hue vs. Hue tool to introduce subtle color shifts. For example, to achieve a classic cinematic look, you might shift the shadows slightly toward teal and the highlights toward orange. Don’t be afraid to experiment with the Curves panel for contrast control. A gentle S-curve often adds depth and punch to an image. As you make these adjustments, watch the histogram to ensure you are not clipping your blacks or whites. The goal is a balanced, pleasing image that represents the "before" state you want to capture.

Step 3: Saving and Exporting the LUT

Step 4: Importing and Testing

Best Practices for Consistency

To get the most out of your custom LUTs, always apply them after basic color correction. A LUT is a creative tool, not a correction tool. If your footage is too dark or too blue, fix that first with standard tools, then apply your custom LUT for the final artistic touch. Additionally, keep your LUTs subtle. A good LUT should enhance the image, not overpower it. If you find yourself having to drastically adjust the intensity slider to make the LUT work, you might want to revisit your original grade and make it less extreme. Consistency is key; use the same LUT across all clips in a scene to maintain visual cohesion.

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