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Emboss

Node icon
Filter

Creates a raised relief effect by highlighting edges based on a simulated light direction.

Emboss simulates a light source hitting a raised surface, creating highlights on one side of edges and shadows on the other. The angle controls the light direction (135° = classic top-left), and the size controls how far the relief extends.

In Alpha mode, the emboss uses the silhouette shape instead of the color detail, which is useful for creating beveled buttons or badge effects from flat icons.

Parameters

Section titled “Parameters”

Pins

ImagePixels
InputRequired
MaskMask
InputOptional
ImagePixels
Output

Filter

SourceChoice
Default: Color
  • ColorCreates relief from the image's color/detail, embossing texture and content.
  • AlphaCreates relief from the silhouette shape, producing a beveled button/badge effect.
AngleNumber
Default: 135 Range: 0–360

Direction of the light source. 135 = top-left (classic emboss). 315 = bottom-right

SizeNumber · px/%
Default: 1.0 Range: 0.5–200.0 px / 0–100%

Width of the highlight and shadow spread. Small = sharp, tight edges. Large = wide, soft bevel

StrengthNumber
Default: 1.0 Range: 0.0–5.0

Intensity of the highlight and shadow edges. 0 = no effect. 1.0 = subtle emboss. Higher = more pronounced relief

Mask

Mask FromChoice
Default: Luminance
Color image connected to the mask input

How the connected color image is read as a mask. Luminance: the image's brightness. Alpha: the image's transparency. Red / Green / Blue: a single channel

  • LuminanceRead the image's brightness as the mask. The default.
  • AlphaRead the image's transparency as the mask.
  • RedUse the red channel as the mask.
  • GreenUse the green channel as the mask.
  • BlueUse the blue channel as the mask.
Mask FitChoice
Default: None (native size)
Mask connected

How the mask is sized when it doesn't match the image. None: center at native size, no scaling. Stretch: scale to exactly match image dimensions. Fit: scale to fit inside image, preserving aspect ratio. Fill: scale to fill image, cropping overflow

  • None (native size)Center the mask at its native size, with no resizing. Unmasked regions are unaffected.
  • StretchStretch the mask to exactly match the image dimensions. May distort the mask shape.
  • Fit (letterbox)Scale the mask to fit inside the image, preserving aspect ratio. Letterboxes where needed.
  • Fill (crop)Scale the mask to fill the image, preserving aspect ratio. Crops edges if aspect ratios differ.

Usage Tips

Section titled “Usage Tips”
  • Alpha mode creates a bevel effect from any silhouette, making it great for UI icons.
  • Combine with Composite (Overlay mode) to emboss on top of the original image.
  • Use a small size (1–3) for subtle texture enhancement.
  • Connect a mask input to apply the emboss effect to only part of the image.
Section titled “Related Nodes”