Reference / Effects / Utility
Updated
Erosion
Erosion is a Utility effect.
What it does
Section titled “What it does”Above 0, each pixel takes the most transparent pixel within Amount and the shape shrinks. Below 0 it takes the most opaque one and the shape grows, carrying its edge colours out. Corners stay square.
Parameters
Section titled “Parameters”| Parameter | Control | Range | Default | Unit |
|---|---|---|---|---|
| Amount | Slider | -64 to 64 | 8 | Pixels at composition size |
What each control does
Section titled “What each control does”- Amount: how far the shape shrinks, or grows below 0.
- Mix: how much of the result replaces the original.
- Matte and Invert drive the strength of the effect from another layer’s brightness; see Effects.