如何?得effect file?面的一??整?抵

akira32

我想?算?入Pixel Shader的次??然後在C++中印出???次??我用ID3DXEffect的GetInt去?得???在Shader中的整??但是?得的值都是等於我用ID3DXEffect的SetInt去?定的初始值.

1. 
   
2. int m_nSM_0_Light_Area;
   
3. D3DXHANDLE m_hSM_0_Light_Area;
   
4. m_hSM_0_Light_Area = g_pEffect_ASM->GetParameterByName(NULL, "SM_0_Light_Area");
   
5. g_pEffect_ASM->SetInt(m_hSM_0_Light_Area, 0);
   
6. 
   
7.     D3DMATERIAL9 *pMtrl;
   
8.     pMtrl = m_MeshShip.m_pMaterials;
   
9. 
   
10.     IDirect3DBaseTexture9** ppTexArray=m_MeshShip.m_pTextures;
    
11. 
    
12.     for(unsigned int i=0; i<m_MeshShip.m_dwNumMaterials; i++)
    
13.     {
    
14.      vTemp.x = pMtrl->Diffuse.r;
    
15.      vTemp.y = pMtrl->Diffuse.g;
    
16.      vTemp.z = pMtrl->Diffuse.b;
    
17.      vTemp.w = pMtrl->Diffuse.a;
    
18.      if(m_hMaterialColor_ASM != NULL)
    
19.      {
    
20.      g_pEffect_ASM->SetVector(m_hMaterialColor_ASM, &vTemp);
    
21.      }
    
22. 
    
23.      if (ppTexArray[i]==NULL)
    
24.      {
    
25.      HRESULT hr;
    
26.      hr=g_pEffect_ASM->SetBool(m_hUseDiffuseTexture_ASM,FALSE);
    
27.      }
    
28.      else
    
29.      {
    
30.      HRESULT hr;
    
31.      hr=g_pEffect_ASM->SetTexture("DiffuseTexture", ppTexArray[i]);
    
32.      hr=g_pEffect_ASM->SetBool(m_hUseDiffuseTexture_ASM,TRUE);
    
33.      }
    
34. 
    
35.      g_pEffect_ASM->CommitChanges();
    
36.      m_MeshShip.GetLocalMesh()->DrawSubset(i);
    
37.      pMtrl++;
    
38.     }
    
39. 
    
40. g_pEffect_ASM->GetInt(m_hSM_0_Light_Area,&m_nSM_0_Light_Area);
    

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// shader code

1. 
   
2. extern int SM_0_Light_Area;
   
3. 
   
4. float4 PSScene(VS_OUTPUT In) : COLOR
   
5. {
   
6.     SM_0_Light_Area++;
   
7.     return float4(1,0,0,1);
   
8. }
   

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