linearAttenuation
A linear factor applied to the attenuation of a point light or spotlight.
Declaration
var linearAttenuation: GLfloat { get set }Discussion
The distance attenuation factor is calculated as 1.0 / (k0 + k1 * d + k2 * d * d), where d represents the distance from the light to the point being lit. The linearAttenuation property is represented in this calculation as k1. The default value is 0.0.