render(_:to:bounds:colorSpace:)
Renders a region of an image into an IOSurface object.
Declaration
func render(_ image: CIImage, to surface: IOSurfaceRef, bounds: CGRect, colorSpace: CGColorSpace?)Parameters
- image:
A Core Image image object.
- surface:
The destination IOSurface object.
- bounds:
The rectangle in the destination IOSurface object to draw into.
- colorSpace:
The color space of the destination IOSurface object.