Emboss
Places an image as a localized stamp on the surface at a specified UV position. Unlike Bump Map (which tiles the image across the entire surface), Emboss positions a single instance of the image at a specific location with configurable size, rotation, and edge falloff.
Parameters
Amplitude- Emboss relief depth in mm (0–20). Controls how far the stamped image protrudes from the surface.
Image ID- Identifier of the image to emboss (integer). Select from uploaded images.
Position U- Horizontal center of the stamp on the surface (0–1, wraps). Positions the stamp around the circumference.
Position V- Vertical center of the stamp on the surface (0 = bottom, 1 = top). Positions the stamp along the height.
Scale X- Horizontal size of the stamp as a fraction of the surface width (0.01–1). At 1, the stamp spans the full circumference.
Scale Y- Vertical size of the stamp as a fraction of the surface height (0.01–1). At 1, the stamp spans the full height.
Rotation (\u00B0)- Rotates the stamp image in degrees (\u2212180 to 180). Useful for angling logos or text.
Falloff- Width of the blending edge at the stamp boundary (0.01–1). A narrow falloff creates hard stamp edges; a wide falloff blends the stamp smoothly into the surface.
Invert- 0 = normal (bright pixels are raised). 1 = inverted (dark pixels are raised).
How It Works
The effect defines a rectangular region in UV space centered at (Position U, Position V) with dimensions (Scale X, Scale Y). Within this region, the image is sampled with clamping (no tiling). Outside the region, displacement is zero.
The Falloff parameter creates a smooth transition zone at the boundary of the stamp. Within the falloff zone, the displacement is multiplied by a gradient that ramps from 0 at the outer edge to 1 at the inner edge, preventing visible hard edges where the stamp meets the untouched surface.
The Rotation parameter rotates the UV sampling coordinates around the stamp center before looking up the image pixel.