The intersect feature in Lightroom and Lightroom Classic allows you to combine two or more masks, and wherever they overlap is the area your mask is created. It’s a very useful feature, and I’ll be helping you understand how it works in this article and video.
What is “intersect mask”?
The intersect mask feature allows you to create a single mask from two (or more) masks. Simply put, the areas where the intersected masks overlap create the final masked area of your image. You can combine any of the mask options (such as subject, sky, brush, gradient, and so on) to create your intersected mask.
Why use the intersect feature?
While the intersect feature is one you may not use for every image, when the need arises, it is extremely useful. Here are some examples of when you may want to consider using the intersect feature:
- To make edits to a specific area on a subject that cannot easily be created with a brush
- To subdue the horizon of a sky when the edits are too harsh and the horizon line has a rough transition
- When used in conjunction with an AI mask (such as a subject + gradient) to create a soft transition of your edits on one side of the subject (as in the example below)
- To make a specific part of the background or sky brighter or darker