Type Property 型プロパティ

lighten

A mode that creates composite image samples by choosing the lighter samples from either the source image or the background.

Declaration 宣言 

static var lighten: GraphicsContext.BlendMode { get }

Discussion 議論

When you draw in this mode, source image samples that are lighter than the background replace the background. Otherwise, the background image samples remain unchanged.

See Also 参照

Lightening

static var screen: GraphicsContext.BlendMode
A mode that multiplies the inverse of the source image samples with the inverse of the background image samples.
static var colorDodge: GraphicsContext.BlendMode
A mode that brightens the background image samples to reflect the source image samples.
static var plusLighter: GraphicsContext.BlendMode
A mode that adds the components of the source and background images, resulting in a lightened composite.