ExpandPostProcessExpansionWidth Property

Gets or sets the width of the expansion (the distance in pixels that are checked away from the current pixel). ExpansionWidth values can be between 1 (zero is not allowed) and 16 (ExpandPostProcess.MaxExpansionWidth). Bigger numbers mean that more pixels will be sampled in pixel shader and will therefore require more time to execute the post process.

public int ExpansionWidth { get; set; }