Paths in Photoshop

Paths use vector mathematics to define curves and lines that remain sharp at any size. Unlike pixel-based content that becomes blurry when scaled, paths maintain perfect clarity at any dimension.

Paths form the underlying structure for precise selections, vector masks, shape layers, and clipping paths for print work. Understanding path anatomy helps you work effectively with these interconnected features.

Path structure fundamentals

A path consists of one or more segments connected by anchor points. Each segment represents either a straight line or a curve between two anchor points. Photoshop uses these mathematical definitions to render paths at any resolution without quality loss.

Paths can be open or closed. An open path has distinct starting and ending points, like a wavy line or arc. A closed path connects back to its starting point, forming complete shapes like circles, rectangles, or custom polygons.

Anchor point types

Anchor points mark where path segments begin and end. Two types of anchor points determine how curves behave.

Smooth points create flowing curves where the path passes through the anchor point without abrupt direction changes. The path maintains continuous curvature on both sides, producing organic shapes and natural transitions. Smooth points display direction lines extending from both sides of the anchor point.

Corner points create sharp angles or abrupt direction changes in the path. The segments on either side can curve independently or meet at straight angles. Corner points control precisely where curves begin and end, making them essential for geometric shapes or designs requiring distinct angles.

Visual indicators identify anchor point types. Selected anchor points appear as filled squares and unselected anchor points appear as hollow squares. The presence and behavior of direction lines reveal whether you're working with smooth or corner points.

Direction lines and points

On curved path segments, direction lines emerge from anchor points to control the curve's shape and angle. Each direction line ends in a direction point that is a small, filled circle you can manipulate to reshape curves.

Direction lines work like handles, pulling curves in specific directions. The direction line's angle determines curve direction and its length controls how far the curve extends before bending toward the next anchor point. Longer direction lines create pronounced curves and shorter ones create gentler bends.

Smooth and corner points behave differently when you adjust direction lines.

On smooth points, moving one direction line simultaneously affects the opposite direction line. They maintain straight alignment through the anchor point, ensuring the curve flows smoothly. This linked behavior creates the fluid, continuous curves characteristic of organic shapes.

On corner points, direction lines operate independently. Adjusting one direction line affects only the curve on that side of the anchor point, leaving the opposite curve unchanged. This independence creates sharp transitions, S-curves, or shapes where flowing curves meet straight segments.

Curved segments may display one or two direction lines depending on whether they connect to straight segments or other curves. A curve leading into a straight line requires only one direction line to define its shape.

Path components

A single path item can contain multiple separate, non-connected shapes called path components. Each distinct outline within a path represents its own component, even though they exist together in the same path structure.

Path components become particularly relevant when working with shape layers. Each shape on a shape layer represents a separate path component within the layer's vector mask. These components can overlap, combine, or subtract from each other to create complex compositions while remaining independently editable.

Path components explain why selecting one part of a complex path doesn't automatically select separate shapes. They also explain how shape layers contain multiple distinct objects that interact through path operations while maintaining their individual definitions.

Path anatomy in practice

Recognizing these anatomical elements helps you understand what you're looking at when paths appear in your work. Selected paths display all their anchor points, with direction lines and direction points visible on curved segments. This visual feedback shows you exactly where you can make adjustments and how the mathematical curves are currently defined.

The relationship between these components determines your path's final appearance. Straight segments connect corner points directly, curved segments flow through smooth points with natural transitions, and direction lines sculpt the precise character of each curve.