D3DXVec4Lerp Function

Performs a linear interpolation between two 4-D vectors.

Syntax

D3DXVECTOR4 *D3DXVec4Lerp(      

    D3DXVECTOR4 *pOut,
    CONST D3DXVECTOR4 *pV1,
    CONST D3DXVECTOR4 *pV2,
    FLOAT s
);

Parameters

pOut

[in, out] Pointer to the D3DXVECTOR4 structure that is the result of the operation.

pV1

[in] Pointer to a source D3DXVECTOR4 structure.

pV2

[in] Pointer to a source D3DXVECTOR4 structure.

s

[in] Parameter that linearly interpolates between the vectors.

Return Value

Pointer to a D3DXVECTOR4 structure that is the result of the linear interpolation.

Remarks

This function performs the linear interpolation based on the following formula: V1 + s(V2-V1).

The return value for this function is the same value returned in the pOut parameter. In this way, the D3DXVec4Lerp function can be used as a parameter for another function.

Function Information

Header	d3dx9math.h
Import library	d3dx9.lib
Minimum operating systems	Windows 98