# C1.Util.DX.Direct2D.Effects.PointDiffuse ## Content

PointDiffuse Class

Builtin PointDiffuse effect.

PointDiffuse

public class PointDiffuse : Effect, IDisposable, IUnknown

Public Class PointDiffuse
    Inherits Effect
    Implements IDisposable, IUnknown

Name	Description
PointDiffuse(IntPtr)	Initializes a new instance of the PointDiffuse class.

Name	Description
Color	The color of the incoming light. This property is exposed as a Vector3 – (R, G, B) and used to compute LR, LG, LB.
DiffuseConstant	The ratio of diffuse reflection to amount of incoming light. This property must be between 0 and 10,000 and is unitless.
KernelUnitLength	The size of an element in the Sobel kernel used to generate the surface normal in the X and Y direction. This property maps to the dx and dy values in the Sobel gradient. This property is a Vector2 (Kernel Unit Length X, Kernel Unit Length Y) and is defined in (device-independent pixels (DIPs)/Kernel Unit). The effect uses bilinear interpolation to scale the bitmap to match size of kernel elements.
LightPosition	The light position of the point light source. The property is a D2D1_VECTOR_3F defined as (x, y, z). The units are in device-independent pixels (DIPs) and the values are unitless and unbounded.
ScaleMode	The interpolation mode the effect uses to scale the image to the corresponding kernel unit length. There are six scale modes that range in quality and speed. If you don't select a mode, the effect uses the interpolation mode of the device context. See Scale modes for more info.
SurfaceScale	The scale factor in the Z direction. The value is unitless and must be between 0 and 10,000.

Name	Description
Create(DeviceContext)	Initializes a new instance of PointDiffuse effect.