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D3DXVec3Project function

Projects a 3D vector from object space into screen space.

Syntax


D3DXVECTOR3* D3DXVec3Project(
  _Inout_  D3DXVECTOR3 *pOut,
  _In_     const D3DXVECTOR3 *pV,
  _In_     const D3DVIEWPORT9 *pViewport,
  _In_     const D3DXMATRIX *pProjection,
  _In_     const D3DXMATRIX *pView,
  _In_     const D3DXMATRIX *pWorld
);

Parameters

pOut [in, out]

Type: D3DXVECTOR3*

Pointer to the D3DXVECTOR3 structure that is the result of the operation.

pV [in]

Type: const D3DXVECTOR3*

Pointer to the source D3DXVECTOR3 structure.

pViewport [in]

Type: const D3DVIEWPORT9*

Pointer to a D3DVIEWPORT9 structure, representing the viewport.

pProjection [in]

Type: const D3DXMATRIX*

Pointer to a D3DXMATRIX structure, representing the projection matrix.

pView [in]

Type: const D3DXMATRIX*

Pointer to a D3DXMATRIX structure, representing the view matrix.

pWorld [in]

Type: const D3DXMATRIX*

Pointer to a D3DXMATRIX structure, representing the world matrix.

Return value

Type: D3DXVECTOR3*

Pointer to a D3DXVECTOR3 structure that is the vector projected from object space to screen space.

Remarks

The return value for this function is the same value returned in the pOut parameter. In this way, the D3DXVec3Project function can be used as a parameter for another function.

Requirements

Header

D3dx9math.h

Library

D3dx9.lib

See also

D3DXVec3Unproject

 

 

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