The main difference between 1D LUTs and 3D LUTs lies in how they handle colors during grading. 1D LUTs adjust only one color channel at a time, mainly affecting brightness, contrast, or gamma. They are simple and useful for basic corrections. In contrast, 3D LUTs work with all color channels together, allowing more detailed and accurate color changes. This makes 3D LUTs more powerful and commonly used in luts for color grading to achieve creative looks. Professionals prefer 3D color grading luts and colour grading luts because they can control hue, saturation, and brightness at the same time, resulting in richer and more cinematic visuals. Conclusion: 1D LUTs are suitable for basic adjustments, while 3D LUTs are better for advanced and professional luts for color grading, offering better color accuracy and creative control.