Photoshop in one sentence
Vector masks in Adobe Photoshop are used to create crisp, clean edges and shapes by using vector paths to define the visibility of a layer

Vector masks in Adobe Photoshop are paths that use mathematical equations to create selections with precise lines and edges. Unlike pixel-based layer masks, vector masks remain crisp and scalable at any size.They are useful for selecting areas with straight lines, such as in architecture, and can be edited using various tools like the Pen and Shape tools ¹ ² ³. Vector masks also allow for adjustments to opacity and feathering .

A vector mask is a resolution-independent path that clips out the contents of the layer. Vector masks are usually more precise than those created with pixel-based tools. You can create vector masks with the pen or shape tools. Photoshop can be used for various graphical tasks. So, using the standard raster mask and paintbrush, you might struggle to get soft, natural lines. By changing to Vector Mask, you'll be able to achieve geometrical shapes. Vector Masks are excellent editing tools and can isolate product-on-white and trim/shape its outline.

In Adobe Photoshop, vector masks are a type of layer mask that uses vector shapes to define the visibility of specific areas within a layer. Unlike pixel-based layer masks, which use grayscale images to control visibility, vector masks are based on editable vector shapes, allowing for precise and scalable masking effects.

vector masks in Adobe Photoshop provide a powerful and versatile tool for creating precise and scalable masking effects, allowing designers to achieve professional-quality results in their digital artwork and photo editing projects.