D3DXVec4Lerp

Performs a linear interpolation between two 4-D vectors.

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 Values

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

  Header: Declared in D3dx8math.h.
  Import Library: Use D3dx8.lib.