RenderStateManager.SlopeScaleDepthBias Property

Language:

Retrieves or sets a value used to determine how much bias can be applied to coplanar primitives to reduce z-fighting.

Definition

Visual Basic Public Property SlopeScaleDepthBias As Single

C# public float SlopeScaleDepthBias { get; set; }

C++ public:
property float SlopeScaleDepthBias {
float get();
void set(float value);
}

JScript public function get SlopeScaleDepthBias() : float
public function set SlopeScaleDepthBias(float);

Visual Basic	Public Property SlopeScaleDepthBias As Single
C#	public float SlopeScaleDepthBias { get; set; }
C++	public: property float SlopeScaleDepthBias { float get(); void set(float value); }
JScript	public function get SlopeScaleDepthBias() : float public function set SlopeScaleDepthBias(float);

Property Value

System.Single
Floating-point value that specifies the slope scale bias to apply.
This property is read/write.

Remarks

The default value is 0.

Polygons that are coplanar in your 3-D space can be made to appear as if they are not coplanar by adding a z-bias to each one. An application can help ensure that coplanar polygons are rendered properly by adding a bias to the z-values that the system uses when rendering sets of coplanar polygons.

The following formula shows how to calculate the bias to be applied to coplanar primitives.

bias = (m * SlopeScaleDepthBias) + DepthBias

where m is the maximum depth slope of the triangle being rendered, defined as:

m = max(abs(delta z / delta x), abs(delta z / delta y))