shadowBias
The amount of correction to apply to the shadow to prevent rendering artifacts.
Declaration
var shadowBias: CGFloat { get set }Discussion
Rendering shadows from a shadow map can result in artifacts where the shadow color does not appear on all pixels in a shadowed surface as intended. (This effect is typically called shadow acne.) This property specifies the error margin SceneKit uses to correct such artifacts.
The default value is 1.0.