fresnelExponent
A factor affecting the material’s reflectivity. Animatable.
Declaration
var fresnelExponent: CGFloat { get set }Discussion
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.