SphericalHarmonics.Dot Method

Language:

Computes the dot product of two spherical harmonic (SH) vectors.

Definition

Visual Basic Public Shared Function Dot( _
    ByVal order As Integer, _
    ByVal vectorA As GraphicsStream, _
    ByVal vectorB As GraphicsStream _
) As Single

C# public static float Dot(
    int order,
    GraphicsStream vectorA,
    GraphicsStream vectorB
);

C++ public:
static float Dot(
    int order,
    GraphicsStream^ vectorA,
    GraphicsStream^ vectorB
);

JScript public static function Dot(
    order : int,
    vectorA : GraphicsStream,
    vectorB : GraphicsStream
) : float;

Visual Basic	Public Shared Function Dot( _ ByVal order As Integer, _ ByVal vectorA As GraphicsStream, _ ByVal vectorB As GraphicsStream _ ) As Single
C#	public static float Dot( int order, GraphicsStream vectorA, GraphicsStream vectorB );
C++	public: static float Dot( int order, GraphicsStream^ vectorA, GraphicsStream^ vectorB );
JScript	public static function Dot( order : int, vectorA : GraphicsStream, vectorB : GraphicsStream ) : float;

Parameters

order System.Int32
Order of the SH evaluation. Must be in the range of SphericalHarmonics.MinimumOrder to SphericalHarmonics.MaximumOrder, inclusive. The evaluation generates order² coefficients. The degree of the evaluation is order - 1.

vectorA Microsoft.DirectX.GraphicsStream
A GraphicsStream object that represents the first SH vector.

vectorB Microsoft.DirectX.GraphicsStream
A GraphicsStream object that represents the second SH vector.

Return Value

System.Single
A floating point value that represents the dot product of the two vectors.

Remarks

Each coefficient of the basis function Y_lm is stored at location l² + m + l, where:

l is the degree of the basis function.

m is the basis function index for the given l value and ranges from -l to l, inclusive.

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order	System.Int32 Order of the SH evaluation. Must be in the range of SphericalHarmonics.MinimumOrder to SphericalHarmonics.MaximumOrder, inclusive. The evaluation generates order² coefficients. The degree of the evaluation is order - 1.
vectorA	Microsoft.DirectX.GraphicsStream A GraphicsStream object that represents the first SH vector.
vectorB	Microsoft.DirectX.GraphicsStream A GraphicsStream object that represents the second SH vector.