radius
The radius of the sphere. Animatable.
Declaration
var radius: CGFloat { get set }Discussion
The sphere is centered in its local coordinate system. For example, if you create a sphere whose radius is 5.0, it extends from -5.0 to 5.0 along each of the the x, y, and z-axes. A radius of zero or less creates an empty geometry.
You can animate changes to this property’s value. See Animating SceneKit Content.