Revisions to Loading and using an HLSL shader?

deleted 162 characters in body

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edited Jun 10, 2011 at 13:53

321
1
3

Load effect and set the technique

// Declaration of your effect variable LPD3DXEFFECT mDSEGeometryStage; ... initEffects() { //With this method you load your effect file HR(D3DXCreateEffectFromFile( d3ddev, "./DeferredEffect_MaterialsStage.fx", 0, 0, D3DXSHADER_DEBUG, 0, &mDSEGeometryStage, &errors);) // Some Error checking
if( errors ) { MessageBoxA(0, (char *)errors->GetBufferPointer(), 0, 0); errors->Release(); }
// Retrieve a Technique from your effects handler D3DXHANDLE mhTech = mDSEGeometryStage->GetTechniqueByName("MaterialsTech"); // Set the technique to be used HR(mDSEGeometryStage->SetTechnique(mhTech)); }
Then, in the rendering stage you can passProvide data to the effect like that:

renderGeometryStage() { // Effect values handlers (String parameter is the name of a variable in your .fx file) D3DXHANDLE mhView = mDSEGeometryStage->GetParameterByName(0, "gView");
D3DXHANDLE mhProjection = mDSEGeometryStage->GetParameterByName(0, "gProjection");
D3DXHANDLE mhNearClip = mDSEGeometryStage->GetParameterByName(0, "gNearClip"); D3DXHANDLE mhFarClip = mDSEGeometryStage->GetParameterByName(0, "gFarClip");
```
 // Set effect values indicating the handler and the data as paramters
```
HR(mDSEGeometryStage->SetMatrix(mhProjection, &(camera->getProjectionMatrix()))); HR(mDSEGeometryStage->SetMatrix(mhView, &(camera->getViewMatrix())));
HR(mDSEGeometryStage->SetFloat(mhFarClip, camera->getFarClip()));
```
 ...
```

Render: As said in a previous answer

As said in a previous answer:

    ...

// Begin Scene  
HR(d3ddev->BeginScene());
{
                ...     

    // Clear targets surface
    d3ddev->Clear(0, NULL, D3DCLEAR_TARGET |D3DCLEAR_ZBUFFER, 
        D3DCOLOR_ARGB(0, 0,0,0), 1.0f, 0);    
    
    // Begin Effect passes.
    UINT numPasses = 0;
    HR(mDSEGeometryStage->Begin(&numPasses, 0))
    {
        // Render your objects
        for(RenderizableObjectsList::iterator it = visibleObjects.begin();
            it != visibleObjects.end();
            ++it)
   PLACE HERE YOUR RENDERING STUFF {
            // Render
          like:  drawTexturedQuad(*it)->render(mDSEGeometryStage, true, numPasses);
        }
    }
    // End Effect passes
    HR(mDSEGeometryStage->End());
}   
// End scene rendering
HR(d3ddev->EndScene());    
}// End of renderGeometryStage method

Load effect and set the technique

// Declaration of your effect variable LPD3DXEFFECT mDSEGeometryStage; ... initEffects() { //With this method you load your effect file HR(D3DXCreateEffectFromFile( d3ddev, "./DeferredEffect_MaterialsStage.fx", 0, 0, D3DXSHADER_DEBUG, 0, &mDSEGeometryStage, &errors);) // Error checking
if( errors ) { MessageBoxA(0, (char *)errors->GetBufferPointer(), 0, 0); errors->Release(); }
// Retrieve a Technique from your effects handler D3DXHANDLE mhTech = mDSEGeometryStage->GetTechniqueByName("MaterialsTech"); // Set the technique to be used HR(mDSEGeometryStage->SetTechnique(mhTech)); }
Then, in the rendering stage you can pass data to the effect like that:

renderGeometryStage() { // Effect values handlers (String parameter is the name of a variable in your .fx file) D3DXHANDLE mhView = mDSEGeometryStage->GetParameterByName(0, "gView");
D3DXHANDLE mhProjection = mDSEGeometryStage->GetParameterByName(0, "gProjection");
D3DXHANDLE mhNearClip = mDSEGeometryStage->GetParameterByName(0, "gNearClip"); D3DXHANDLE mhFarClip = mDSEGeometryStage->GetParameterByName(0, "gFarClip");
```
 // Set effect values indicating the handler and the data as paramters
```
HR(mDSEGeometryStage->SetMatrix(mhProjection, &(camera->getProjectionMatrix()))); HR(mDSEGeometryStage->SetMatrix(mhView, &(camera->getViewMatrix())));
HR(mDSEGeometryStage->SetFloat(mhFarClip, camera->getFarClip()));
```
 ...
```

As said in a previous answer:

    ...

// Begin Scene  
HR(d3ddev->BeginScene());
{
                ...     

    // Clear targets surface
    d3ddev->Clear(0, NULL, D3DCLEAR_TARGET |D3DCLEAR_ZBUFFER, 
        D3DCOLOR_ARGB(0, 0,0,0), 1.0f, 0);    
    
    // Begin Effect passes.
    UINT numPasses = 0;
    HR(mDSEGeometryStage->Begin(&numPasses, 0))
    {
        // Render your objects
        for(RenderizableObjectsList::iterator it = visibleObjects.begin();
            it != visibleObjects.end();
            ++it)
        {
            // Render
            (*it)->render(mDSEGeometryStage, true, numPasses);
        }
    }
    // End Effect passes
    HR(mDSEGeometryStage->End());
}   
// End scene rendering
HR(d3ddev->EndScene());    
}// End of renderGeometryStage method

Load effect and set the technique

// Declaration of your effect variable LPD3DXEFFECT mDSEGeometryStage; ... initEffects() { //With this method you load your effect file HR(D3DXCreateEffectFromFile( d3ddev, "./DeferredEffect_MaterialsStage.fx", 0, 0, D3DXSHADER_DEBUG, 0, &mDSEGeometryStage, &errors);) // Some Error checking
if( errors ) { MessageBoxA(0, (char *)errors->GetBufferPointer(), 0, 0); errors->Release(); }
// Retrieve a Technique from your effects handler D3DXHANDLE mhTech = mDSEGeometryStage->GetTechniqueByName("MaterialsTech"); // Set the technique to be used HR(mDSEGeometryStage->SetTechnique(mhTech)); }
Provide data to the effect:

renderGeometryStage() { // Effect values handlers (String parameter is the name of a variable in your .fx file) D3DXHANDLE mhView = mDSEGeometryStage->GetParameterByName(0, "gView");
D3DXHANDLE mhProjection = mDSEGeometryStage->GetParameterByName(0, "gProjection");
D3DXHANDLE mhNearClip = mDSEGeometryStage->GetParameterByName(0, "gNearClip"); D3DXHANDLE mhFarClip = mDSEGeometryStage->GetParameterByName(0, "gFarClip");
```
 // Set effect values indicating the handler and the data as paramters
```
HR(mDSEGeometryStage->SetMatrix(mhProjection, &(camera->getProjectionMatrix()))); HR(mDSEGeometryStage->SetMatrix(mhView, &(camera->getViewMatrix())));
HR(mDSEGeometryStage->SetFloat(mhFarClip, camera->getFarClip()));
```
 ...
```

Render: As said in a previous answer

    ...

// Begin Scene  
HR(d3ddev->BeginScene());
{
                ...     

    // Clear targets surface
    d3ddev->Clear(0, NULL, D3DCLEAR_TARGET |D3DCLEAR_ZBUFFER, 
        D3DCOLOR_ARGB(0, 0,0,0), 1.0f, 0);    
    
    // Begin Effect passes.
    UINT numPasses = 0;
    HR(mDSEGeometryStage->Begin(&numPasses, 0))
    {
       // PLACE HERE YOUR RENDERING STUFF 
       // like:  drawTexturedQuad();    
    }
    // End Effect passes
    HR(mDSEGeometryStage->End());
}   
// End scene rendering
HR(d3ddev->EndScene());    
}// End of renderGeometryStage method

added 284 characters in body

Source Link

edited Jun 10, 2011 at 8:52

Axel M. Garcia

321
1
3

First you have to create the effect and assign the technique to itThere are three steps:

  LPD3DXEFFECT  mDSEGeometryStage; // Deferred Shading Effect Geometry Stage
  ...
  initEffects()
  {
  HR(D3DXCreateEffectFromFile( d3ddev, "./DeferredEffect_MaterialsStage.fx", 0, 0, D3DXSHADER_DEBUG, 0, &mDSEGeometryStage, &errors);) 
    if( errors )
    {
        MessageBoxA(0, (char *)errors->GetBufferPointer(), 0, 0);
        errors->Release();
    }       
    // TECHNIQUE
    D3DXHANDLE mhTech = mDSEGeometryStage->GetTechniqueByName("MaterialsTech");
    HR(mDSEGeometryStage->SetTechnique(mhTech));
  }

Then, in the rendering stage you can pass data to the effect like that:

Load effect and set the technique

Provide data to the effect

Render

renderGeometryStage()
{
    // Effect values handlers (String parameter is the name of a variable in your .fx file)
D3DXHANDLE mhView       = mDSEGeometryStage->GetParameterByName(0, "gView");            
D3DXHANDLE mhProjection = mDSEGeometryStage->GetParameterByName(0, "gProjection");      
D3DXHANDLE mhNearClip = mDSEGeometryStage->GetParameterByName(0, "gNearClip");
D3DXHANDLE mhFarClip = mDSEGeometryStage->GetParameterByName(0, "gFarClip");
    
    // Set effect values indicating the handler and the data as paramters
HR(mDSEGeometryStage->SetMatrix(mhProjection, &(camera->getProjectionMatrix())));
HR(mDSEGeometryStage->SetMatrix(mhView, &(camera->getViewMatrix())));       
HR(mDSEGeometryStage->SetFloat(mhFarClip, camera->getFarClip()));
 
    ...

Load effect and set the technique

// Declaration of your effect variable LPD3DXEFFECT mDSEGeometryStage; ... initEffects() { //With this method you load your effect file HR(D3DXCreateEffectFromFile( d3ddev, "./DeferredEffect_MaterialsStage.fx", 0, 0, D3DXSHADER_DEBUG, 0, &mDSEGeometryStage, &errors);) // Error checking
if( errors ) { MessageBoxA(0, (char *)errors->GetBufferPointer(), 0, 0); errors->Release(); }
// Retrieve a Technique from your effects handler D3DXHANDLE mhTech = mDSEGeometryStage->GetTechniqueByName("MaterialsTech"); // Set the technique to be used HR(mDSEGeometryStage->SetTechnique(mhTech)); }

Then, in the rendering stage you can pass data to the effect like that:

renderGeometryStage() { // Effect values handlers (String parameter is the name of a variable in your .fx file) D3DXHANDLE mhView = mDSEGeometryStage->GetParameterByName(0, "gView");
D3DXHANDLE mhProjection = mDSEGeometryStage->GetParameterByName(0, "gProjection");
D3DXHANDLE mhNearClip = mDSEGeometryStage->GetParameterByName(0, "gNearClip"); D3DXHANDLE mhFarClip = mDSEGeometryStage->GetParameterByName(0, "gFarClip");
```
 // Set effect values indicating the handler and the data as paramters
```
HR(mDSEGeometryStage->SetMatrix(mhProjection, &(camera->getProjectionMatrix()))); HR(mDSEGeometryStage->SetMatrix(mhView, &(camera->getViewMatrix())));
HR(mDSEGeometryStage->SetFloat(mhFarClip, camera->getFarClip()));
```
 ...
```

First you have to create the effect and assign the technique to it:

  LPD3DXEFFECT  mDSEGeometryStage; // Deferred Shading Effect Geometry Stage
  ...
  initEffects()
  {
  HR(D3DXCreateEffectFromFile( d3ddev, "./DeferredEffect_MaterialsStage.fx", 0, 0, D3DXSHADER_DEBUG, 0, &mDSEGeometryStage, &errors);) 
    if( errors )
    {
        MessageBoxA(0, (char *)errors->GetBufferPointer(), 0, 0);
        errors->Release();
    }       
    // TECHNIQUE
    D3DXHANDLE mhTech = mDSEGeometryStage->GetTechniqueByName("MaterialsTech");
    HR(mDSEGeometryStage->SetTechnique(mhTech));
  }

Then, in the rendering stage you can pass data to the effect like that:

renderGeometryStage()
{
    // Effect values handlers (String parameter is the name of a variable in your .fx file)
D3DXHANDLE mhView       = mDSEGeometryStage->GetParameterByName(0, "gView");            
D3DXHANDLE mhProjection = mDSEGeometryStage->GetParameterByName(0, "gProjection");      
D3DXHANDLE mhNearClip = mDSEGeometryStage->GetParameterByName(0, "gNearClip");
D3DXHANDLE mhFarClip = mDSEGeometryStage->GetParameterByName(0, "gFarClip");
    
    // Set effect values indicating the handler and the data as paramters
HR(mDSEGeometryStage->SetMatrix(mhProjection, &(camera->getProjectionMatrix())));
HR(mDSEGeometryStage->SetMatrix(mhView, &(camera->getViewMatrix())));       
HR(mDSEGeometryStage->SetFloat(mhFarClip, camera->getFarClip()));
 
    ...

There are three steps:

Load effect and set the technique

Provide data to the effect

Render

Load effect and set the technique

// Declaration of your effect variable LPD3DXEFFECT mDSEGeometryStage; ... initEffects() { //With this method you load your effect file HR(D3DXCreateEffectFromFile( d3ddev, "./DeferredEffect_MaterialsStage.fx", 0, 0, D3DXSHADER_DEBUG, 0, &mDSEGeometryStage, &errors);) // Error checking
if( errors ) { MessageBoxA(0, (char *)errors->GetBufferPointer(), 0, 0); errors->Release(); }
// Retrieve a Technique from your effects handler D3DXHANDLE mhTech = mDSEGeometryStage->GetTechniqueByName("MaterialsTech"); // Set the technique to be used HR(mDSEGeometryStage->SetTechnique(mhTech)); }

Then, in the rendering stage you can pass data to the effect like that:

renderGeometryStage() { // Effect values handlers (String parameter is the name of a variable in your .fx file) D3DXHANDLE mhView = mDSEGeometryStage->GetParameterByName(0, "gView");
D3DXHANDLE mhProjection = mDSEGeometryStage->GetParameterByName(0, "gProjection");
D3DXHANDLE mhNearClip = mDSEGeometryStage->GetParameterByName(0, "gNearClip"); D3DXHANDLE mhFarClip = mDSEGeometryStage->GetParameterByName(0, "gFarClip");
```
 // Set effect values indicating the handler and the data as paramters
```
HR(mDSEGeometryStage->SetMatrix(mhProjection, &(camera->getProjectionMatrix()))); HR(mDSEGeometryStage->SetMatrix(mhView, &(camera->getViewMatrix())));
HR(mDSEGeometryStage->SetFloat(mhFarClip, camera->getFarClip()));
```
 ...
```

Source Link

answered Jun 10, 2011 at 8:41

Axel M. Garcia

321
1
3

First you have to create the effect and assign the technique to it:

  LPD3DXEFFECT  mDSEGeometryStage; // Deferred Shading Effect Geometry Stage
  ...
  initEffects()
  {
  HR(D3DXCreateEffectFromFile( d3ddev, "./DeferredEffect_MaterialsStage.fx", 0, 0, D3DXSHADER_DEBUG, 0, &mDSEGeometryStage, &errors);) 
    if( errors )
    {
        MessageBoxA(0, (char *)errors->GetBufferPointer(), 0, 0);
        errors->Release();
    }       
    // TECHNIQUE
    D3DXHANDLE mhTech = mDSEGeometryStage->GetTechniqueByName("MaterialsTech");
    HR(mDSEGeometryStage->SetTechnique(mhTech));
  }

Then, in the rendering stage you can pass data to the effect like that:

renderGeometryStage()
{
    // Effect values handlers (String parameter is the name of a variable in your .fx file)
D3DXHANDLE mhView       = mDSEGeometryStage->GetParameterByName(0, "gView");            
D3DXHANDLE mhProjection = mDSEGeometryStage->GetParameterByName(0, "gProjection");      
D3DXHANDLE mhNearClip = mDSEGeometryStage->GetParameterByName(0, "gNearClip");
D3DXHANDLE mhFarClip = mDSEGeometryStage->GetParameterByName(0, "gFarClip");
    
    // Set effect values indicating the handler and the data as paramters
HR(mDSEGeometryStage->SetMatrix(mhProjection, &(camera->getProjectionMatrix())));
HR(mDSEGeometryStage->SetMatrix(mhView, &(camera->getViewMatrix())));       
HR(mDSEGeometryStage->SetFloat(mhFarClip, camera->getFarClip()));
 
    ...

As said in a previous answer:

ID3DXEffect provides Begin() and BeginPass() methods.

So, in the same rendering method you can start to render by calling the device BeginScene() method and inside call the Begin or BeginPass methods of your effect.

    ...

// Begin Scene  
HR(d3ddev->BeginScene());
{
                ...     

    // Clear targets surface
    d3ddev->Clear(0, NULL, D3DCLEAR_TARGET |D3DCLEAR_ZBUFFER, 
        D3DCOLOR_ARGB(0, 0,0,0), 1.0f, 0);    
    
    // Begin Effect passes.
    UINT numPasses = 0;
    HR(mDSEGeometryStage->Begin(&numPasses, 0))
    {
        // Render your objects
        for(RenderizableObjectsList::iterator it = visibleObjects.begin();
            it != visibleObjects.end();
            ++it)
        {
            // Render
            (*it)->render(mDSEGeometryStage, true, numPasses);
        }
    }
    // End Effect passes
    HR(mDSEGeometryStage->End());
}   
// End scene rendering
HR(d3ddev->EndScene());    
}// End of renderGeometryStage method

Hope it helps, but your question is not about a chunk of code that you can copy/paste, its more about "basic" concepts. So for this kind of things I really recommend you to follow some tutorial because you will understand all the underlying concepts better. Cheers!

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