Bevel Alpha

Brief Description

Add a 3D relief effect to an object based on its alpha channel. The Angle controls which area are considered shadows and which areas are considered light. The relief is produced by duplicating Edge Precision times the edge pixels along a distance of Thickness pixels. The higher the precision, the longeer it is to render.

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 content of the main source is returned instead, else 0.
`Green / process_green`	Boolean	On	Enable the green channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0.
`Blue / process_blue`	Boolean	On	Enable the blue channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0.
`Alpha / process_alpha`	Boolean	On	Enable the alpha channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0.
`Light Color / light_color`	Color	1, 1, 1, 0.9
`Light Mode / light_mode`	Choice	Screen	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 or screen depending on Ac. Hard Mix: if vivid-light(Ac,Bc) < 0.5 then 0 else 1. Linear Light: linear-burn or linear-dodge depending on Ac. Overlay: multiply or screen depending on Bc. Pin Light: completely removes mid-tones. Soft Light: multi-branch soft-light formula. Vivid Light: color burn/dodge. Difference: abs(A - B). Divide: Ac / Bc (if Dc > 0 and Ac > 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: branch based on Aa ≤ Ba. Disjoint Over: branch based 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).
`Shadow Color / shadow_color`	Color	0, 0, 0, 0.9
`Shadow Mode / shadow_mode`	Choice	Multiply	Add: Ac + Dc. Color Dodge: min(1, Bc / (1 - Ac)). Lighten: max(Ac, Bc). Linear Dodge: min(Ac + Bc, 1). Screen: Ac + Bc - Ac * Bc. Hard-light: multiply/screen based on Ac. Hard Mix: threshold version of vivid-light. Linear Light: burn/dodge based on Ac. Overlay: multiply/screen based on Bc. Pin Light: removes mid-tones. Soft Light: complex soft-light model. Vivid Light: color burn/dodge. Difference: abs(A - B). Divide: Ac / Bc (if input valid). 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: branch based on Aa ≤ Ba. Disjoint Over: branch based 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).
`Thickness / thickness`	Float 2D	10, 10
`Angle / angle`	Float	0
`Edge Precision / edge_precision`	Float	10
`Mask / mask`	Image	-
`Mix / mix_with_source`	Float	1	Dissolves between the original image at 0 and the image with the effect applied at 1.
`Light/Shadow Colorspace / input_colorspace`	Choice	Project Display Space	Colorspace in which Light and Shadow color values are expressed: Project Working Space: The color is assumed to be expressed in the project working space. Project Display Space: The color is assumed to be expressed in the project display space.