D3DXFillVolumeTexture
Microsoft DirectX 9.0 SDK Update (October 2004)

D3DXFillVolumeTexture Function


Uses a user-provided function to fill each texel of each mip level of a given volume texture.

Syntax

HRESULT WINAPI D3DXFillVolumeTexture(      

    LPDIRECT3DVOLUMETEXTURE9 pTexture,     LPD3DXFILL3D pFunction,     LPVOID pData );

Parameters

pTexture
[out, retval] Pointer to an IDirect3DVolumeTexture9 interface, representing the filled texture.
pFunction
[in] Pointer to a user-provided evaluator function, which will be used to compute the value of each texel. The function follows the prototype of LPD3DXFILL3D.
pData
[in] Pointer to an arbitrary block of user-defined data. This pointer will be passed to the function provided in pFunction.

Return Value

If the function succeeds, the return value is D3D_OK.

If the function fails, the return value can be one of the following values.

D3DERR_INVALIDCALLThe method call is invalid. For example, a method's parameter may have an invalid value.


Remarks

If the volume is non-dynamic (because usage is set to 0 when it is created), and located in video memory (the memory pool set to D3DPOOL_DEFAULT), D3DXFillVolumeTexture will fail because the volume cannot be locked.

This example creates a function called ColorVolumeFill, which relies on D3DXFillVolumeTexture.

// Define a function that matches the prototype of LPD3DXFILL3D
VOID WINAPI ColorVolumeFill (D3DXVECTOR4* pOut, const D3DXVECTOR3* pTexCoord, 
const D3DXVECTOR3* pTexelSize, LPVOID pData)
{
   *pOut = D3DXVECTOR4(pTexCoord->x, pTexCoord->y, pTexCoord->z, 0.0f);
}


// Fill volume texture
if (FAILED (hr = D3DXFillVolumeTexture (m_pTexture, ColorVolumeFill, NULL)))
{
       return hr;
}

Function Information

Headerd3dx9tex.h
Import libraryd3dx9.lib
Minimum operating systems Windows 98


© 2004 Microsoft Corporation. All rights reserved.
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