D3DXVec3Unproject function (D3dx9math.h)
Note
The D3DX utility library is deprecated. We recommend that you use DirectXMath instead.
Projects a vector from screen space into object space.
Syntax
D3DXVECTOR3* D3DXVec3Unproject(
_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 screen space to object space.
Remarks
The return value for this function is the same value returned in the pOut parameter. In this way, the D3DXVec3Unproject function can be used as a parameter for another function.
Requirements
| Requirement | Value |
|---|---|
| Header |
|
| Library |
|
See also