D3DXVec4Lerp

The D3DXVec4Lerp function performs a linear interpolation between two 4-D vectors.

D3DXVECTOR4* D3DXVec4Lerp(
  D3DXVECTOR4* pOut,
  const D3DXVECTOR4* pV1,
  const D3DXVECTOR4* pV2,
  float s
); 

Parameters

pOut

A pointer to the D3DXVECTOR4 structure that is the result of the operation.

pV1

A pointer to a source D3DXVECTOR4 structure.

pV2

A pointer to a source D3DXVECTOR4 structure.

s

This value linearly interpolates between the two given vectors.

Return Values

A 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.

Requirements

  Windows NT/2000: Requires Windows 2000.
  Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
  Windows CE: Unsupported.
  Version: Requires DirectX 7.0.
  Header: Declared in d3dxmath.h.
  Library: Use d3dx.lib.