D3DUSAGE_DYNAMIC to D3DUSAGE_RENDERTARGET

akira32

m_pShadowMapSurf is the surface attach to RenderTarget texture.
I copy the pSmTile->m_pShadowMapSurf to m_pShadowMapSurf_For_CPU(m_pShadowMapTex) successfully.

But I have a problem
hr=m_pEffect_QVSM_ADAPTIVE->SetTexture("TestBaseTexture", m_pShadowMapTex_For_CPU);

When I SetTexture of m_pShadowMapTex_For_CPU for an effect, it return S_OK.
But I cannot see the Texture I want.
If I save the Texture of m_pShadowMapTex_For_CPU to a png file.
The png file is what I want.
If effect SetTexure of RenderTarget texture, it return OK and the texture display in the screen. So shader code and relative source code have no problems

Is the parameters of D3DUSAGE_DYNAMIC and D3DPOOL_MANAGED incompatible with Effect->SetTexture?

1. 
   
2. HRESULT CSmTile::CopySmTileFrom_GPU_To_CPU(CSmTile* pSmTile)
   
3. {
   
4.         HRESULT hr;
   
5. 
   
6.         D3DSURFACE_DESC Desc;
   
7.         pSmTile->m_pShadowMapSurf->GetDesc(&Desc);
   
8. 
   
9.         // setup shadow map objects
   
10.         hr=m_pd3dDevice->CreateTexture(
    
11.                 Desc.Width,
    
12.                 Desc.Height,
    
13.                 1,
    
14.                 D3DUSAGE_DYNAMIC,
    
15.                 Desc.Format,
    
16.                 D3DPOOL_MANAGED,
    
17.                 &m_pShadowMapTex_For_CPU,
    
18.                 NULL
    
19.                 );
    
20. 
    
21.         hr=m_pShadowMapTex_For_CPU->GetSurfaceLevel(0,&m_pShadowMapSurf_For_CPU);
    
22. 
    
23.         //V_RETURN(m_pd3dDevice->CreateOffscreenPlainSurface(Desc.Width,Desc.Height,Desc.Format,D3DPOOL_SYSTEMMEM,&m_pShadowMapSurf_For_CPU,NULL));//Must be D3DPOOL_SYSTEMMEM for MSDN
    
24.         V_RETURN(m_pd3dDevice->GetRenderTargetData(pSmTile->m_pShadowMapSurf,m_pShadowMapSurf_For_CPU));
    
25. 
    
26.         //hr=D3DXSaveTextureToFile(L"t1.png",D3DXIFF_PNG ,m_pShadowMapTex_For_CPU,NULL);
    
27. 
    
28.         return S_OK;
    
29. }
    

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