public Vector4F DepthBias { get; set; }

Public Property DepthBias As Vector4F
	Get
	Set

public:
property Vector4F DepthBias {
	Vector4F get ();
	void set (Vector4F value);
}

member DepthBias : Vector4F with get, set

Property Value

This value is used to modify the depth value of the shadow-receiving pixel. A positive value moves the receiver closer to the light source (into the light), a negative value moves the receiver farther away from the light source (into the shadow). If this value is too large, the shadow becomes visually disconnected from the occluder (a.k.a. "Peter Panning").

This value is relative to the shadow map resolution. A depth bias of 1 changes the depth by the size of one shadow map texel. Therefore, the depth bias values automatically scale with the shadow map resolution of each cascade. You can set 4 different values to tune the depth bias for each cascade.

The DepthBias is used to remove "surface acne" at surfaces facing the light source. The NormalOffset is used to remove "surface acne" at steep angles, i.e. surface parallel to the light direction. In practice a combination of DepthBias and NormalOffset is required to remove shadow artifacts.

Reference