Type Property 型プロパティ

shadowOnly

An option that causes the filter to draw only the shadow, and omit the source object.

Declaration 宣言 

static var shadowOnly: GraphicsContext.ShadowOptions { get }

See Also 参照

Getting Shadow Options

static var disablesGroup: GraphicsContext.ShadowOptions
An option that causes the filter to composite the object and its shadow separately in the current layer.
static var invertsAlpha: GraphicsContext.ShadowOptions
An option that causes the filter to invert the alpha of the shadow.
static var shadowAbove: GraphicsContext.ShadowOptions
An option that causes the filter to draw the shadow above the object, rather than below it.