Stroke
Brief Description
Draw a Stroke on the edge of the alpha contour of the source image. Styling can be either a solid fill color or an oriented gradient ramp along the edge.
Controls
| Parameter / Script Name | Type | Default | Function |
|---|---|---|---|
Enabled / enabled
|
Boolean | On | |
Red / process_red
|
Boolean | On | Enable the red channel in output. Otherwise if there's a source the main source content is returned, else 0. |
Green / process_green
|
Boolean | On | Enable the green channel in output. Otherwise if there's a source the main source content is returned, else 0. |
Blue / process_blue
|
Boolean | On | Enable the blue channel in output. Otherwise if there's a source the main source content is returned, else 0. |
Alpha / process_alpha
|
Boolean | On | Enable the alpha channel in output. Otherwise if there's a source the main source content is returned, else 0. |
Position / position
|
Choice | Inside | Outside
Centered Inside |
Technique / technique
|
Choice | Smooth | Smooth
Distance Field |
Style / style
|
Choice | Fill | Fill
Edge Gradient |
Size / size
|
Float | 5 | |
Edge Threshold / threshold
|
Float | 0.25 | Alpha values below this level are considered outside the object; adjusting may help fix edge issues. |
Fill Color / fillColor
|
Color | 1, 1, 1, 1 | |
Gradient / gradient
|
|||
Gradient Wrap Mode / wrap
|
Choice | Constant | Constant
Repeat Mirror |
Invert / inverse
|
Boolean | Off | Invert Gradient. |
Offset / offset
|
Float | 0 | |
Colorspace / input_colorspace
|
Choice | Project Display Space | Project Working Space: Color interpreted in project working space. Project Display Space: Color interpreted in project display space. |
Arrangement / arrangement
|
Choice | Blend With Source | Blend With Source: For Inside & Centered — blends stroke with original. Blend With Source Shrinked: Blends with a shrinked version of the source to avoid overlap. |
Blend Mode / blendMode
|
Choice | Normal |
Add: Ac + Dc — Adds source to destination. Color Dodge: if Ac < 1 → min(1, Bc/(1−Ac)); else 1. Lighten: max(Ac, Bc). Linear Dodge: min(Ac + Bc, 1). Screen: Ac + Bc − Ac×Bc. Hard-light: multiply/screen based on Ac. Hard Mix: vivid-light threshold. Linear Light: burn/dodge based on Ac. Overlay: depends on Bc. Pin Light: removes mid-tones. Soft Light: multi-branch soft‑light model. Vivid Light: burn/dodge mix. Difference: abs(A − B). Divide: Ac/Bc if valid; else 0. Exclusion: Ac + Bc − 2AcBc. Minus: Ac − Bc. Subtract: Bc − Ac. Color: SetLum(Ac, Lum(Bc)). Hue: SetLum(SetSat(Ac, Sat(Bc)), Lum(Bc)). Luminosity: SetLum(Bc, Lum(Ac)). Saturation: SetLum(SetSat(Bc, Sat(Ac)), Lum(Bc)). Replace: Ac. Destination Atop: Bca×Aa + Aca×(1−Ba). Destination Out: Ba×Bc×(1−Aa). Destination Over: Aa×(1−Ba) + Bc. Destination In: Bc×Aa. Source Atop: Ac×Ba + Bc×(1−Aa). Source Out: Ac×(1−Ba). Normal: Ac + Bc×(1−Aa). Source In: Ac×Ba. Xor: Ac×(1−Ba) + Bc×(1−Aa). Average: (Ac + Bc)/2. Conjoint Over: depends on Aa ≤ Ba. Disjoint Over: depends on Aa + Ba ≥ 1. Geometric: 2AcBc/(Ac + Bc). Grain Extract: Bc − Ac + 0.5. Grain Merge: Bc + Ac − 0.5. Hypot: sqrt(Ac² + Bc²). Reflect: Aa²/(1−Ba). Color Burn: 1 − min(1, (1−Bc)/Ac). Darken: min(Ac, Bc). Linear Burn: Bc + Ac − 1. Multiply: Ac × Bc. Multiply (Math): Ac × Bc (negatives preserved). |
Post-Blur / postBlurSize
|
Float | 0 | |
Mask / mask
|
Image | - | |
Mix / mix_with_source
|
Float | 1 | Dissolves between the original image at 0 and the effect-applied image at 1. |