Contents

brightness(_:)

Returns a filter that applies a brightness adjustment.

Declaration

static func brightness(_ amount: Double) -> GraphicsContext.Filter

Parameters

  • amount:

    An amount to add to the pixel’s color components.

Return Value

A filter that applies a brightness adjustment.

Discussion

This filter is different than brightness filter primitive defined by the Scalable Vector Graphics (SVG) specification. You can obtain an effect like that filter using a grayscale(_:) color multiply. However, this filter does match the CIColorControls filter’s brightness adjustment.

See Also

Changing brightness and contrast