Assembly: Microsoft.Xna.Framework (in microsoft.xna.framework.dll)
This property specifies a value in the range of 0 through 16 (inclusive). This value is used to make polygons that are physically coplanar appear separate.
Polygons with a high z-bias value appear in front of polygons with a lower value, without requiring sorting for drawing order. For example, polygons with a value of 1 appear in front of polygons with a value of 0.