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Microsoft DirectX 9.0

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

Headerd3dx9math.h
Import libraryd3dx9.lib
Minimum operating systems Windows 98


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