glPolygonOffset Method

public static void PolygonOffset(
	float factor,
	float units
)

Public Shared Sub PolygonOffset ( 
	factor As Single,
	units As Single
)

public:
static void PolygonOffset(
	float factor, 
	float units
)

static member PolygonOffset : 
        factor : float32 * 
        units : float32 -> unit 

When PolygonOffsetFill is enabled, each fragment's depth value will be offset after it is interpolated from the depth values of the appropriate vertices. The value of the offset is (factor × DZ) + (r × units), where DZ is a measurement of the change in depth relative to the screen area of the polygon, and r is the smallest value that is guaranteed to produce a resolvable offset for a given implementation. The offset is added before the depth test is performed and before the value is written into the depth buffer.

PolygonOffset is useful for rendering hidden-line images, for applying decals to surfaces, and for rendering solids with highlighted edges.

OpenGL API: glPolygonOffset