Ajout transparence buggé

enginecustom/applicationclass.cpp

@@ -5,6 +5,8 @@ ApplicationClass::ApplicationClass()
 	m_Direct3D = 0;
 	m_Camera = 0;
 	m_Model = 0;
+	m_Model1 = 0;
+	m_Model2 = 0;
 	m_LightShader = 0;
 	m_Light = 0;
 	m_TextureShader = 0;
@@ -26,6 +28,7 @@ ApplicationClass::ApplicationClass()
 	m_Frustum = 0;
 	m_DisplayPlane = 0;
 	m_ReflectionShader = 0;
+	m_TransparentShader = 0;
 }
 
 
@@ -140,6 +143,9 @@ bool ApplicationClass::Initialize(int screenWidth, int screenHeight, HWND hwnd)
 		return false;
 	}
 
+	
+
+
 	// Create and initialize the render to texture object.
 	m_RenderTexture = new RenderTextureClass;
 
@@ -233,6 +239,37 @@ bool ApplicationClass::Initialize(int screenWidth, int screenHeight, HWND hwnd)
 		return false;
 	}
 
+	// Create and initialize the first model object that will use the dirt texture.
+	m_Model1 = new ModelClass;
+
+	result = m_Model1->Initialize(m_Direct3D->GetDevice(), m_Direct3D->GetDeviceContext(), modelFilename, textureFilename1, textureFilename2, textureFilename3, textureFilename4,
+		textureFilename5, textureFilename6);
+	if (!result)
+	{
+		MessageBox(hwnd, L"Could not initialize the model object.", L"Error", MB_OK);
+		return false;
+	}
+
+	// Create and initialize the second model object that will use the stone texture.
+	m_Model2 = new ModelClass;
+
+	result = m_Model2->Initialize(m_Direct3D->GetDevice(), m_Direct3D->GetDeviceContext(), modelFilename, textureFilename1, textureFilename2, textureFilename3, textureFilename4,
+		textureFilename5, textureFilename6);
+	if (!result)
+	{
+		return false;
+	}
+
+	// Create and initialize the transparent shader object.
+	m_TransparentShader = new TransparentShaderClass;
+
+	result = m_TransparentShader->Initialize(m_Direct3D->GetDevice(), hwnd);
+	if (!result)
+	{
+		MessageBox(hwnd, L"Could not initialize the transparent shader object.", L"Error", MB_OK);
+		return false;
+	}
+
 	// Create and initialize the light shader object.
 	m_LightShader = new LightShaderClass;
 
@@ -364,6 +401,29 @@ bool ApplicationClass::Initialize(int screenWidth, int screenHeight, HWND hwnd)
 
 void ApplicationClass::Shutdown()
 {
+	// Release the transparent shader object.
+	if (m_TransparentShader)
+	{
+		m_TransparentShader->Shutdown();
+		delete m_TransparentShader;
+		m_TransparentShader = 0;
+	}
+
+	// Release the model object.
+	if (m_Model2)
+	{
+		m_Model2->Shutdown();
+		delete m_Model2;
+		m_Model2 = 0;
+	}
+
+	// Release the model object.
+	if (m_Model1)
+	{
+		m_Model1->Shutdown();
+		delete m_Model1;
+		m_Model1 = 0;
+	}
 
 	// Release the shader manager object.
 	if (m_ShaderManager)
@@ -703,6 +763,10 @@ bool ApplicationClass::Render(float rotation, float x, float y, float z, float t
 	XMFLOAT4 diffuseColor[4], lightPosition[4];
 	int  modelCount, renderCount, i;
 	bool result, renderModel;
+	float blendAmount;
+
+	// Set the blending amount to 50%.
+	blendAmount = 0.5f;
 
 	// Clear the buffers to begin the scene.
 	m_Direct3D->BeginScene(0.0f, 0.0f, 0.0f, 1.0f);
@@ -710,6 +774,38 @@ bool ApplicationClass::Render(float rotation, float x, float y, float z, float t
 	// Generate the view matrix based on the camera's position.
 	m_Camera->Render();
 
+	// Get the world, view, and projection matrices from the camera and d3d objects.
+	m_Direct3D->GetWorldMatrix(worldMatrix);
+	m_Camera->GetViewMatrix(viewMatrix);
+	m_Direct3D->GetProjectionMatrix(projectionMatrix);
+
+	// Render the first model that is using the dirt texture using the regular texture shader.
+	m_Model1->Render(m_Direct3D->GetDeviceContext());
+
+	result = m_TextureShader->Render(m_Direct3D->GetDeviceContext(), m_Model1->GetIndexCount(), worldMatrix, viewMatrix, projectionMatrix, m_Model1->GetTexture(0));
+	if (!result)
+	{
+		return false;
+	}
+
+	// Translate to the right by one unit and towards the camera by one unit.
+	worldMatrix = XMMatrixTranslation(1.0f, 0.0f, -1.0f);
+
+	// Turn on alpha blending for the transparency to work.
+	m_Direct3D->EnableAlphaBlending();
+
+	// Render the second square model with the stone texture and use the 50% blending amount for transparency.
+	m_Model2->Render(m_Direct3D->GetDeviceContext());
+
+	result = m_TransparentShader->Render(m_Direct3D->GetDeviceContext(), m_Model2->GetIndexCount(), worldMatrix, viewMatrix, projectionMatrix, m_Model2->GetTexture(5), blendAmount);
+	if (!result)
+	{
+		return false;
+	}
+
+	// Turn off alpha blending.
+	m_Direct3D->DisableAlphaBlending();
+
 	// Get the world, view, and projection matrices from the camera and d3d objects.
 	m_Direct3D->GetWorldMatrix(worldMatrix);
 	m_Camera->GetViewMatrix(viewMatrix);

enginecustom/applicationclass.h

@@ -30,6 +30,7 @@
 #include "rendertextureclass.h"
 #include "displayplaneclass.h"
 #include "reflectionshaderclass.h"
+#include "transparentshaderclass.h"
 
 
 
@@ -91,7 +92,9 @@ private :
 	D3DClass* m_Direct3D;
 	IDXGISwapChain* m_swapChain;
 	ModelClass* m_Model;
+	ModelClass* m_Model1, * m_Model2;
 	TextureShaderClass* m_TextureShader;
+	TransparentShaderClass* m_TransparentShader;
 	ShaderManagerClass* m_ShaderManager;
 	ModelListClass* m_ModelList;
 

enginecustom/enginecustom.vcxproj

@@ -60,6 +60,7 @@
     <ClCompile Include="textureshaderclass.cpp" />
     <ClCompile Include="Timerclass.cpp" />
     <ClCompile Include="translateshaderclass.cpp" />
+    <ClCompile Include="transparentshaderclass.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="alphamapshaderclass.h" />
@@ -103,6 +104,7 @@
     <ClInclude Include="textureshaderclass.h" />
     <ClInclude Include="Timerclass.h" />
     <ClInclude Include="translateshaderclass.h" />
+    <ClInclude Include="transparentshaderclass.h" />
   </ItemGroup>
   <ItemGroup>
     <None Include="alphamap.ps" />
@@ -124,6 +126,8 @@
     <None Include="specmap.vs" />
     <None Include="texture.ps" />
     <None Include="texture.vs" />
+    <None Include="transparent.ps" />
+    <None Include="transparent.vs" />
   </ItemGroup>
   <ItemGroup>
     <None Include="Color.ps">

enginecustom/enginecustom.vcxproj.filters

@@ -156,6 +156,12 @@
     <ClCompile Include="reflectionshaderclass.cpp">
       <Filter>Fichiers sources</Filter>
     </ClCompile>
+    <ClCompile Include="shadermanagerclass.cpp">
+      <Filter>Fichiers sources</Filter>
+    </ClCompile>
+    <ClCompile Include="transparentshaderclass.cpp">
+      <Filter>Fichiers sources</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="systemclass.h">
@@ -281,6 +287,12 @@
     <ClInclude Include="reflectionshaderclass.h">
       <Filter>Fichiers d%27en-tête</Filter>
     </ClInclude>
+    <ClInclude Include="shadermanagerclass.h">
+      <Filter>Fichiers d%27en-tête</Filter>
+    </ClInclude>
+    <ClInclude Include="transparentshaderclass.h">
+      <Filter>Fichiers d%27en-tête</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Image Include="font01.tga">
@@ -313,6 +325,9 @@
     <Image Include="..\..\..\..\Downloads\grass.tga">
       <Filter>Assets</Filter>
     </Image>
+    <Image Include="spec02.tga">
+      <Filter>Assets</Filter>
+    </Image>
   </ItemGroup>
   <ItemGroup>
     <None Include="packages.config" />
@@ -376,8 +391,18 @@
     <None Include="translate.ps">
       <Filter>shader</Filter>
     </None>
-    <None Include="reflection.vs" />
-    <None Include="reflection.ps" />
+    <None Include="reflection.ps">
+      <Filter>shader</Filter>
+    </None>
+    <None Include="reflection.vs">
+      <Filter>shader</Filter>
+    </None>
+    <None Include="transparent.ps">
+      <Filter>shader</Filter>
+    </None>
+    <None Include="transparent.vs">
+      <Filter>shader</Filter>
+    </None>
   </ItemGroup>
   <ItemGroup>
     <Text Include="font01.txt">
@@ -398,8 +423,5 @@
     <Text Include="square.txt">
       <Filter>assets</Filter>
     </Text>
-    <ClCompile Include="shadermanagerclass.cpp" />
-    <ClInclude Include="shadermanagerclass.h" />
-    <Image Include="spec02.tga" />
   </ItemGroup>
 </Project>

enginecustom/shadermanagerclass.cpp

@@ -8,6 +8,7 @@ ShaderManagerClass::ShaderManagerClass()
     m_TranslateShader = 0;
     m_AlphaMapShader = 0;
     m_SpecMapShader = 0;
+    m_TransparentShader = 0;
 }
 
 
@@ -79,6 +80,15 @@ bool ShaderManagerClass::Initialize(ID3D11Device* device, HWND hwnd)
         return false;
     }
 
+    // Create and initialize the specular map shader object.
+    m_TransparentShader = new TransparentShaderClass;
+
+    result = m_TransparentShader->Initialize(device, hwnd);
+    if (!result)
+    {
+        return false;
+    }
+
     return true;
 }
 
@@ -132,6 +142,14 @@ void ShaderManagerClass::Shutdown()
         m_SpecMapShader = 0;
     }
 
+    // Release the transparent shader object.
+    if (m_TransparentShader)
+    {
+        m_TransparentShader->Shutdown();
+        delete m_TransparentShader;
+        m_TransparentShader = 0;
+    }
+
     return;
       
 }

enginecustom/shadermanagerclass.h

@@ -11,6 +11,7 @@
 #include "translateshaderclass.h"
 #include "alphamapshaderclass.h"
 #include "specmapshaderclass.h"
+#include "transparentshaderclass.h"
 
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -32,6 +33,7 @@ public:
     bool RenderAlphaMapShader(ID3D11DeviceContext*, int, XMMATRIX, XMMATRIX, XMMATRIX, ID3D11ShaderResourceView*, ID3D11ShaderResourceView*, ID3D11ShaderResourceView*);
     bool RenderSpecMapShader(ID3D11DeviceContext*, int, XMMATRIX, XMMATRIX, XMMATRIX, ID3D11ShaderResourceView*, ID3D11ShaderResourceView*, ID3D11ShaderResourceView*,
         XMFLOAT3, XMFLOAT4, XMFLOAT3, XMFLOAT4, float);
+    bool RenderTransparentShader(ID3D11DeviceContext*, int, XMMATRIX, XMMATRIX, XMMATRIX, ID3D11ShaderResourceView*, ID3D11ShaderResourceView*);
 
 private:
     TextureShaderClass* m_TextureShader;
@@ -40,6 +42,7 @@ private:
     TranslateShaderClass* m_TranslateShader;
     AlphaMapShaderClass* m_AlphaMapShader;
     SpecMapShaderClass* m_SpecMapShader;
+    TransparentShaderClass* m_TransparentShader;
 };
 
 #endif

enginecustom/transparent.ps

@@ -0,0 +1,38 @@
+/////////////
+// GLOBALS //
+/////////////
+Texture2D shaderTexture : register(t0);
+SamplerState SampleType : register(s0);
+
+cbuffer TransparentBuffer
+{
+    float blendAmount;
+};
+
+
+//////////////
+// TYPEDEFS //
+//////////////
+struct PixelInputType
+{
+    float4 position : SV_POSITION;
+    float2 tex : TEXCOORD0;
+};
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Pixel Shader
+////////////////////////////////////////////////////////////////////////////////
+float4 TransparentPixelShader(PixelInputType input) : SV_TARGET
+{
+    float4 color;
+
+
+    // Sample the texture pixel at this location.
+    color = shaderTexture.Sample(SampleType, input.tex);
+
+    // Set the alpha value of this pixel to the blending amount to create the alpha blending effect.
+    color.a = blendAmount;
+
+    return color;
+}

enginecustom/transparent.vs

@@ -0,0 +1,48 @@
+/////////////
+// GLOBALS //
+/////////////
+cbuffer MatrixBuffer
+{
+    matrix worldMatrix;
+    matrix viewMatrix;
+    matrix projectionMatrix;
+};
+
+
+//////////////
+// TYPEDEFS //
+//////////////
+struct VertexInputType
+{
+    float4 position : POSITION;
+    float2 tex : TEXCOORD0;
+};
+
+struct PixelInputType
+{
+    float4 position : SV_POSITION;
+    float2 tex : TEXCOORD0;
+};
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Vertex Shader
+////////////////////////////////////////////////////////////////////////////////
+PixelInputType TransparentVertexShader(VertexInputType input)
+{
+    PixelInputType output;
+
+
+    // Change the position vector to be 4 units for proper matrix calculations.
+    input.position.w = 1.0f;
+
+    // Calculate the position of the vertex against the world, view, and projection matrices.
+    output.position = mul(input.position, worldMatrix);
+    output.position = mul(output.position, viewMatrix);
+    output.position = mul(output.position, projectionMatrix);
+    
+    // Store the texture coordinates for the pixel shader.
+    output.tex = input.tex;
+    
+    return output;
+}

enginecustom/transparentshaderclass.cpp

@@ -0,0 +1,413 @@
+#include "transparentshaderclass.h"
+
+
+TransparentShaderClass::TransparentShaderClass()
+{
+    m_vertexShader = 0;
+    m_pixelShader = 0;
+    m_layout = 0;
+    m_matrixBuffer = 0;
+    m_sampleState = 0;
+    m_transparentBuffer = 0;
+}
+
+
+TransparentShaderClass::TransparentShaderClass(const TransparentShaderClass& other)
+{
+}
+
+
+TransparentShaderClass::~TransparentShaderClass()
+{
+}
+
+
+bool TransparentShaderClass::Initialize(ID3D11Device* device, HWND hwnd)
+{
+    bool result;
+    wchar_t vsFilename[128];
+    wchar_t psFilename[128];
+    int error;
+
+    // Set the filename of the vertex shader.
+    error = wcscpy_s(vsFilename, 128, L"transparent.vs");
+    if (error != 0)
+    {
+        return false;
+    }
+
+    // Set the filename of the pixel shader.
+    error = wcscpy_s(psFilename, 128, L"transparent.ps");
+    if (error != 0)
+    {
+        return false;
+    }
+
+    // Initialize the vertex and pixel shaders.
+    result = InitializeShader(device, hwnd, vsFilename, psFilename);
+    if (!result)
+    {
+        return false;
+    }
+
+    return true;
+}
+
+
+void TransparentShaderClass::Shutdown()
+{
+    // Shutdown the vertex and pixel shaders as well as the related objects.
+    ShutdownShader();
+
+    return;
+}
+
+bool TransparentShaderClass::Render(ID3D11DeviceContext* deviceContext, int indexCount, XMMATRIX worldMatrix, XMMATRIX viewMatrix,
+    XMMATRIX projectionMatrix, ID3D11ShaderResourceView* texture, float blend)
+{
+    bool result;
+
+
+    // Set the shader parameters that it will use for rendering.
+    result = SetShaderParameters(deviceContext, worldMatrix, viewMatrix, projectionMatrix, texture, blend);
+    if (!result)
+    {
+        return false;
+    }
+
+    // Now render the prepared buffers with the shader.
+    RenderShader(deviceContext, indexCount);
+
+    return true;
+}
+
+
+bool TransparentShaderClass::InitializeShader(ID3D11Device* device, HWND hwnd, WCHAR* vsFilename, WCHAR* psFilename)
+{
+    HRESULT result;
+    ID3D10Blob* errorMessage;
+    ID3D10Blob* vertexShaderBuffer;
+    ID3D10Blob* pixelShaderBuffer;
+    D3D11_INPUT_ELEMENT_DESC polygonLayout[2];
+    unsigned int numElements;
+    D3D11_BUFFER_DESC matrixBufferDesc;
+    D3D11_SAMPLER_DESC samplerDesc;
+    D3D11_BUFFER_DESC transparentBufferDesc;
+
+
+    // Initialize the pointers this function will use to null.
+    errorMessage = 0;
+    vertexShaderBuffer = 0;
+    pixelShaderBuffer = 0;
+
+    // Compile the vertex shader code.
+    result = D3DCompileFromFile(vsFilename, NULL, NULL, "TransparentVertexShader", "vs_5_0", D3D10_SHADER_ENABLE_STRICTNESS, 0,
+        &vertexShaderBuffer, &errorMessage);
+    if (FAILED(result))
+    {
+        // If the shader failed to compile it should have writen something to the error message.
+        if (errorMessage)
+        {
+            OutputShaderErrorMessage(errorMessage, hwnd, vsFilename);
+        }
+        // If there was nothing in the error message then it simply could not find the shader file itself.
+        else
+        {
+            MessageBox(hwnd, vsFilename, L"Missing Shader File", MB_OK);
+        }
+
+        return false;
+    }
+
+    // Compile the pixel shader code.
+    result = D3DCompileFromFile(psFilename, NULL, NULL, "TransparentPixelShader", "ps_5_0", D3D10_SHADER_ENABLE_STRICTNESS, 0,
+        &pixelShaderBuffer, &errorMessage);
+    if (FAILED(result))
+    {
+        // If the shader failed to compile it should have writen something to the error message.
+        if (errorMessage)
+        {
+            OutputShaderErrorMessage(errorMessage, hwnd, psFilename);
+        }
+        // If there was nothing in the error message then it simply could not find the file itself.
+        else
+        {
+            MessageBox(hwnd, psFilename, L"Missing Shader File", MB_OK);
+        }
+
+        return false;
+    }
+
+    // Create the vertex shader from the buffer.
+    result = device->CreateVertexShader(vertexShaderBuffer->GetBufferPointer(), vertexShaderBuffer->GetBufferSize(), NULL, &m_vertexShader);
+    if (FAILED(result))
+    {
+        return false;
+    }
+
+    // Create the pixel shader from the buffer.
+    result = device->CreatePixelShader(pixelShaderBuffer->GetBufferPointer(), pixelShaderBuffer->GetBufferSize(), NULL, &m_pixelShader);
+    if (FAILED(result))
+    {
+        return false;
+    }
+
+    // Create the vertex input layout description.
+    polygonLayout[0].SemanticName = "POSITION";
+    polygonLayout[0].SemanticIndex = 0;
+    polygonLayout[0].Format = DXGI_FORMAT_R32G32B32_FLOAT;
+    polygonLayout[0].InputSlot = 0;
+    polygonLayout[0].AlignedByteOffset = 0;
+    polygonLayout[0].InputSlotClass = D3D11_INPUT_PER_VERTEX_DATA;
+    polygonLayout[0].InstanceDataStepRate = 0;
+
+    polygonLayout[1].SemanticName = "TEXCOORD";
+    polygonLayout[1].SemanticIndex = 0;
+    polygonLayout[1].Format = DXGI_FORMAT_R32G32_FLOAT;
+    polygonLayout[1].InputSlot = 0;
+    polygonLayout[1].AlignedByteOffset = D3D11_APPEND_ALIGNED_ELEMENT;
+    polygonLayout[1].InputSlotClass = D3D11_INPUT_PER_VERTEX_DATA;
+    polygonLayout[1].InstanceDataStepRate = 0;
+
+    // Get a count of the elements in the layout.
+    numElements = sizeof(polygonLayout) / sizeof(polygonLayout[0]);
+
+    // Create the vertex input layout.
+    result = device->CreateInputLayout(polygonLayout, numElements, vertexShaderBuffer->GetBufferPointer(),
+        vertexShaderBuffer->GetBufferSize(), &m_layout);
+    if (FAILED(result))
+    {
+        return false;
+    }
+
+    // Release the vertex shader buffer and pixel shader buffer since they are no longer needed.
+    vertexShaderBuffer->Release();
+    vertexShaderBuffer = 0;
+
+    pixelShaderBuffer->Release();
+    pixelShaderBuffer = 0;
+
+    // Setup the description of the dynamic matrix constant buffer that is in the vertex shader.
+    matrixBufferDesc.Usage = D3D11_USAGE_DYNAMIC;
+    matrixBufferDesc.ByteWidth = sizeof(MatrixBufferType);
+    matrixBufferDesc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
+    matrixBufferDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
+    matrixBufferDesc.MiscFlags = 0;
+    matrixBufferDesc.StructureByteStride = 0;
+
+    // Create the constant buffer pointer so we can access the vertex shader constant buffer from within this class.
+    result = device->CreateBuffer(&matrixBufferDesc, NULL, &m_matrixBuffer);
+    if (FAILED(result))
+    {
+        return false;
+    }
+
+    // Create a texture sampler state description.
+    samplerDesc.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
+    samplerDesc.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
+    samplerDesc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
+    samplerDesc.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;
+    samplerDesc.MipLODBias = 0.0f;
+    samplerDesc.MaxAnisotropy = 1;
+    samplerDesc.ComparisonFunc = D3D11_COMPARISON_ALWAYS;
+    samplerDesc.BorderColor[0] = 0;
+    samplerDesc.BorderColor[1] = 0;
+    samplerDesc.BorderColor[2] = 0;
+    samplerDesc.BorderColor[3] = 0;
+    samplerDesc.MinLOD = 0;
+    samplerDesc.MaxLOD = D3D11_FLOAT32_MAX;
+
+    // Create the texture sampler state.
+    result = device->CreateSamplerState(&samplerDesc, &m_sampleState);
+    if (FAILED(result))
+    {
+        return false;
+    }
+
+    // Setup the description of the transparent dynamic constant buffer that is in the pixel shader.
+    transparentBufferDesc.Usage = D3D11_USAGE_DYNAMIC;
+    transparentBufferDesc.ByteWidth = sizeof(TransparentBufferType);
+    transparentBufferDesc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
+    transparentBufferDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
+    transparentBufferDesc.MiscFlags = 0;
+    transparentBufferDesc.StructureByteStride = 0;
+
+    // Create the constant buffer pointer so we can access the pixel shader constant buffer from within this class.
+    result = device->CreateBuffer(&transparentBufferDesc, NULL, &m_transparentBuffer);
+    if (FAILED(result))
+    {
+        return false;
+    }
+
+    return true;
+}
+
+
+void TransparentShaderClass::ShutdownShader()
+{
+    // Release the transparent constant buffer.
+    if (m_transparentBuffer)
+    {
+        m_transparentBuffer->Release();
+        m_transparentBuffer = 0;
+    }
+
+    // Release the sampler state.
+    if (m_sampleState)
+    {
+        m_sampleState->Release();
+        m_sampleState = 0;
+    }
+
+    // Release the matrix constant buffer.
+    if (m_matrixBuffer)
+    {
+        m_matrixBuffer->Release();
+        m_matrixBuffer = 0;
+    }
+
+    // Release the layout.
+    if (m_layout)
+    {
+        m_layout->Release();
+        m_layout = 0;
+    }
+
+    // Release the pixel shader.
+    if (m_pixelShader)
+    {
+        m_pixelShader->Release();
+        m_pixelShader = 0;
+    }
+
+    // Release the vertex shader.
+    if (m_vertexShader)
+    {
+        m_vertexShader->Release();
+        m_vertexShader = 0;
+    }
+
+    return;
+}
+
+
+void TransparentShaderClass::OutputShaderErrorMessage(ID3D10Blob* errorMessage, HWND hwnd, WCHAR* shaderFilename)
+{
+    char* compileErrors;
+    unsigned long long bufferSize, i;
+    ofstream fout;
+
+
+    // Get a pointer to the error message text buffer.
+    compileErrors = (char*)(errorMessage->GetBufferPointer());
+
+    // Get the length of the message.
+    bufferSize = errorMessage->GetBufferSize();
+
+    // Open a file to write the error message to.
+    fout.open("shader-error.txt");
+
+    // Write out the error message.
+    for (i = 0; i < bufferSize; i++)
+    {
+        fout << compileErrors[i];
+    }
+
+    // Close the file.
+    fout.close();
+
+    // Release the error message.
+    errorMessage->Release();
+    errorMessage = 0;
+
+    // Pop a message up on the screen to notify the user to check the text file for compile errors.
+    MessageBox(hwnd, L"Error compiling shader.  Check shader-error.txt for message.", shaderFilename, MB_OK);
+
+    return;
+}
+
+bool TransparentShaderClass::SetShaderParameters(ID3D11DeviceContext* deviceContext, XMMATRIX worldMatrix, XMMATRIX viewMatrix,
+    XMMATRIX projectionMatrix, ID3D11ShaderResourceView* texture, float blend)
+{
+    HRESULT result;
+    D3D11_MAPPED_SUBRESOURCE mappedResource;
+    MatrixBufferType* dataPtr;
+    unsigned int bufferNumber;
+    TransparentBufferType* dataPtr2;
+
+
+    // Transpose the matrices to prepare them for the shader.
+    worldMatrix = XMMatrixTranspose(worldMatrix);
+    viewMatrix = XMMatrixTranspose(viewMatrix);
+    projectionMatrix = XMMatrixTranspose(projectionMatrix);
+
+    // Lock the constant buffer so it can be written to.
+    result = deviceContext->Map(m_matrixBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
+    if (FAILED(result))
+    {
+        return false;
+    }
+
+    // Get a pointer to the data in the constant buffer.
+    dataPtr = (MatrixBufferType*)mappedResource.pData;
+
+    // Copy the matrices into the constant buffer.
+    dataPtr->world = worldMatrix;
+    dataPtr->view = viewMatrix;
+    dataPtr->projection = projectionMatrix;
+
+    // Unlock the constant buffer.
+    deviceContext->Unmap(m_matrixBuffer, 0);
+
+    // Set the position of the constant buffer in the vertex shader.
+    bufferNumber = 0;
+
+    // Finally set the constant buffer in the vertex shader with the updated values.
+    deviceContext->VSSetConstantBuffers(bufferNumber, 1, &m_matrixBuffer);
+
+    // Set shader texture resource in the pixel shader.
+    deviceContext->PSSetShaderResources(0, 1, &texture);
+
+    // Lock the transparent constant buffer so it can be written to.
+    result = deviceContext->Map(m_transparentBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
+    if (FAILED(result))
+    {
+        return false;
+    }
+
+    // Get a pointer to the data in the transparent constant buffer.
+    dataPtr2 = (TransparentBufferType*)mappedResource.pData;
+
+    // Copy the alpha blending value into the transparent constant buffer.
+    dataPtr2->blendAmount = blend;
+
+    // Unlock the buffer.
+    deviceContext->Unmap(m_transparentBuffer, 0);
+
+    // Set the position of the transparent constant buffer in the pixel shader.
+    bufferNumber = 0;
+
+    // Now set the transparent constant buffer in the pixel shader with the updated values.
+    deviceContext->PSSetConstantBuffers(bufferNumber, 1, &m_transparentBuffer);
+
+    return true;
+}
+
+
+void TransparentShaderClass::RenderShader(ID3D11DeviceContext* deviceContext, int indexCount)
+{
+    // Set the vertex input layout.
+    deviceContext->IASetInputLayout(m_layout);
+
+    // Set the vertex and pixel shaders that will be used to render the geometry.
+    deviceContext->VSSetShader(m_vertexShader, NULL, 0);
+    deviceContext->PSSetShader(m_pixelShader, NULL, 0);
+
+    // Set the sampler state in the pixel shader.
+    deviceContext->PSSetSamplers(0, 1, &m_sampleState);
+
+    // Render the geometry.
+    deviceContext->DrawIndexed(indexCount, 0, 0);
+
+    return;
+}

enginecustom/transparentshaderclass.h

@@ -0,0 +1,61 @@
+#ifndef _TRANSPARENTSHADERCLASS_H_
+#define _TRANSPARENTSHADERCLASS_H_
+
+
+//////////////
+// INCLUDES //
+//////////////
+#include <d3d11.h>
+#include <d3dcompiler.h>
+#include <directxmath.h>
+#include <fstream>
+using namespace DirectX;
+using namespace std;
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Class name: TransparentShaderClass
+////////////////////////////////////////////////////////////////////////////////
+class TransparentShaderClass
+{
+private:
+    struct MatrixBufferType
+    {
+        XMMATRIX world;
+        XMMATRIX view;
+        XMMATRIX projection;
+    };
+
+    struct TransparentBufferType
+    {
+        float blendAmount;
+        XMFLOAT3 padding;
+    };
+
+public:
+    TransparentShaderClass();
+    TransparentShaderClass(const TransparentShaderClass&);
+    ~TransparentShaderClass();
+
+    bool Initialize(ID3D11Device*, HWND);
+    void Shutdown();
+    bool Render(ID3D11DeviceContext*, int, XMMATRIX, XMMATRIX, XMMATRIX, ID3D11ShaderResourceView*, float);
+
+private:
+    bool InitializeShader(ID3D11Device*, HWND, WCHAR*, WCHAR*);
+    void ShutdownShader();
+    void OutputShaderErrorMessage(ID3D10Blob*, HWND, WCHAR*);
+
+    bool SetShaderParameters(ID3D11DeviceContext*, XMMATRIX, XMMATRIX, XMMATRIX, ID3D11ShaderResourceView*, float);
+    void RenderShader(ID3D11DeviceContext*, int);
+
+private:
+    ID3D11VertexShader* m_vertexShader;
+    ID3D11PixelShader* m_pixelShader;
+    ID3D11InputLayout* m_layout;
+    ID3D11Buffer* m_matrixBuffer;
+    ID3D11SamplerState* m_sampleState;
+    ID3D11Buffer* m_transparentBuffer;
+};
+
+#endif