A factor affecting the material’s reflectivity. Animatable.
- iOS 8.0+
- macOS 10.9+
- tvOS 9.0+
- watchOS 2.0+
The Fresnel exponent of a material interacts with its
reflective property to determine the intensity of reflections in a surface based on its angle relative to the viewer. A higher Fresnel exponent increases the visibility of reflections when the material is viewed from a shallow angle.
You can animate changes to this property’s value. See Animating SceneKit Content.