kCIInputRefractionKey
The index of refraction to use.
Declaration
let kCIInputRefractionKey: StringDiscussion
A key for a scalar value (NSNumber) that specifies the index of refraction of the material (such as glass) used in the effect.
The index of refraction to use.
let kCIInputRefractionKey: StringA key for a scalar value (NSNumber) that specifies the index of refraction of the material (such as glass) used in the effect.