Flatten Alpha

What It Does

The Flatten Alpha node blends a transparent foreground color with a solid background color to create a single opaque color. It calculates how the colors would appear when layered and removes transparency.

Inputs

Name	Description	Type	Required
Foreground	The (potentially transparent) color to blend on top	Color	Yes
Background	The solid background color to blend with	Color	Yes

Outputs

Name	Description	Type
Value	The resulting opaque color after blending	Color

How to Use It

1. Drag the Flatten Alpha node into your graph.

2. Connect a color with transparency to the "Foreground" input (e.g., #FF000080).

3. Connect a solid color to the "Background" input (e.g., #000).

4. The output will be an opaque color representing the visual appearance of the two blended colors (#800000).

Tips

• This node is useful for converting transparent colors to formats that don't support alpha channels.

• The background color should be fully opaque for accurate results.

See Also

• Mix Colors: For blending colors with control over the mixing percentage.

• Color to String: For converting the resulting color to a specific format.

Use Cases

• Format Conversion: Convert RGBA colors to HEX for systems that don't support transparency.

• Color Export: Prepare colors with transparency for use in older design tools.

• Visual Simulation: Preview how transparent colors will appear against a specific background.