Specular lighting

enginecustom/applicationclass.cpp

@@ -23,7 +23,7 @@ ApplicationClass::ApplicationClass()
 	m_Fps = 0;
 	m_FpsString = 0;
 	m_NormalMapShader = 0;
-
+	m_SpecMapShader = 0;
 }
 
 
@@ -74,6 +74,16 @@ bool ApplicationClass::Initialize(int screenWidth, int screenHeight, HWND hwnd)
 	m_Camera->SetPosition(0.0f, 0.0f, -12.0f);
 	m_Camera->SetRotation(0.0f, 0.0f, 0.0f);
 
+	// Create and initialize the specular map shader object.
+	m_SpecMapShader = new SpecMapShaderClass;
+
+	result = m_SpecMapShader->Initialize(m_Direct3D->GetDevice(), hwnd);
+	if (!result)
+	{
+		MessageBox(hwnd, L"Could not initialize the specular map shader object.", L"Error", MB_OK);
+		return false;
+	}
+
 	// Create and initialize the normal map shader object.
 	m_NormalMapShader = new NormalMapShaderClass;
 
@@ -221,6 +231,7 @@ bool ApplicationClass::Initialize(int screenWidth, int screenHeight, HWND hwnd)
 	strcpy_s(textureFilename1, "stone01.tga");
 	strcpy_s(textureFilename2, "normal01.tga");
 	strcpy_s(textureFilename3, "alpha01.tga");
+	// A FAIRE: Ajouter une nouvelle texture pour le multitexturing
 
 	// Create and initialize the model object.
 	m_Model = new ModelClass;
@@ -248,6 +259,8 @@ bool ApplicationClass::Initialize(int screenWidth, int screenHeight, HWND hwnd)
 
 	m_Light->SetDiffuseColor(1.0f, 1.0f, 1.0f, 1.0f);
 	m_Light->SetDirection(0.0f, 0.0f, 1.0f);
+	m_Light->SetSpecularColor(1.0f, 1.0f, 1.0f, 1.0f);
+	m_Light->SetSpecularPower(16.0f);
 
 	// Set the number of lights we will use.
 	m_numLights = 4;
@@ -414,6 +427,14 @@ void ApplicationClass::Shutdown()
 		m_Model = 0;
 	}
 
+	// Release the specular map shader object.
+	if (m_SpecMapShader)
+	{
+		m_SpecMapShader->Shutdown();
+		delete m_SpecMapShader;
+		m_SpecMapShader = 0;
+	}
+
 	// Release the normal map shader object.
 	if (m_NormalMapShader)
 	{
@@ -704,9 +725,18 @@ bool ApplicationClass::Render(float rotation, float x, float y, float z)
 		return false;
 	}*/
 
-	//Normal Mapping
-	result = m_NormalMapShader->Render(m_Direct3D->GetDeviceContext(), m_Model->GetIndexCount(), worldMatrix, viewMatrix, projectionMatrix,
-		m_Model->GetTexture(0), m_Model->GetTexture(1), m_Light->GetDirection(), m_Light->GetDiffuseColor());
+	////Normal Mapping
+	//result = m_NormalMapShader->Render(m_Direct3D->GetDeviceContext(), m_Model->GetIndexCount(), worldMatrix, viewMatrix, projectionMatrix,
+	//	m_Model->GetTexture(0), m_Model->GetTexture(1), m_Light->GetDirection(), m_Light->GetDiffuseColor());
+	//if (!result)
+	//{
+	//	return false;
+	//}
+
+	//Specular Mapping
+	result = m_SpecMapShader->Render(m_Direct3D->GetDeviceContext(), m_Model->GetIndexCount(), worldMatrix, viewMatrix, projectionMatrix,
+		m_Model->GetTexture(0), m_Model->GetTexture(1), m_Model->GetTexture(2), m_Light->GetDirection(), m_Light->GetDiffuseColor(),
+		m_Camera->GetPosition(), m_Light->GetSpecularColor(), m_Light->GetSpecularPower());
 	if (!result)
 	{
 		return false;

enginecustom/applicationclass.h

@@ -23,6 +23,7 @@
 #include "fpsclass.h"
 #include "inputclass.h"
 #include "normalmapshaderclass.h"
+#include "specmapshaderclass.h"
 
 
 /////////////
@@ -76,6 +77,7 @@ private:
 	TextClass* m_FpsString;
 	int m_previousFps;
 	NormalMapShaderClass* m_NormalMapShader;
+	SpecMapShaderClass* m_SpecMapShader;
 };
 
 #endif

enginecustom/enginecustom.vcxproj

@@ -37,6 +37,7 @@
     <ClCompile Include="modelclass.cpp" />
     <ClCompile Include="Multitextureshaderclass.cpp" />
     <ClCompile Include="normalmapshaderclass.cpp" />
+    <ClCompile Include="specmapshaderclass.cpp" />
     <ClCompile Include="Spriteclass.cpp" />
     <ClCompile Include="Systemclass.cpp" />
     <ClCompile Include="textclass.cpp" />
@@ -61,6 +62,7 @@
     <ClInclude Include="modelclass.h" />
     <ClInclude Include="Multitextureshaderclass.h" />
     <ClInclude Include="normalmapshaderclass.h" />
+    <ClInclude Include="specmapshaderclass.h" />
     <ClInclude Include="Spriteclass.h" />
     <ClInclude Include="systemclass.h" />
     <ClInclude Include="textclass.h" />
@@ -82,6 +84,8 @@
     <None Include="normalmap.ps" />
     <None Include="normalmap.vs" />
     <None Include="packages.config" />
+    <None Include="specmap.ps" />
+    <None Include="specmap.vs" />
     <None Include="texture.ps" />
     <None Include="texture.vs" />
   </ItemGroup>

enginecustom/enginecustom.vcxproj.filters

@@ -96,6 +96,9 @@
     <ClCompile Include="normalmapshaderclass.cpp">
       <Filter>Fichiers sources</Filter>
     </ClCompile>
+    <ClCompile Include="specmapshaderclass.cpp">
+      <Filter>Fichiers sources</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="applicationclass.h">
@@ -164,6 +167,9 @@
     <ClInclude Include="normalmapshaderclass.h">
       <Filter>Fichiers d%27en-tête</Filter>
     </ClInclude>
+    <ClInclude Include="specmapshaderclass.h">
+      <Filter>Fichiers d%27en-tête</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Image Include="font01.tga">
@@ -244,6 +250,12 @@
     <None Include="normalmap.ps">
       <Filter>shader</Filter>
     </None>
+    <None Include="specmap.vs">
+      <Filter>shader</Filter>
+    </None>
+    <None Include="specmap.ps">
+      <Filter>shader</Filter>
+    </None>
   </ItemGroup>
   <ItemGroup>
     <Text Include="font01.txt">

enginecustom/modelclass.cpp

@@ -19,8 +19,7 @@ ModelClass::~ModelClass()
 {
 }
 
-bool ModelClass::Initialize(ID3D11Device* device, ID3D11DeviceContext* deviceContext, char* modelFilename, char* textureFilename1, char* textureFilename2,
-	char* textureFilename3)
+bool ModelClass::Initialize(ID3D11Device* device, ID3D11DeviceContext* deviceContext, char* modelFilename, char* textureFilename1, char* textureFilename2, char* textureFilename3)
 {
 	bool result;
 

enginecustom/specmap.ps

@@ -0,0 +1,93 @@
+/////////////
+// GLOBALS //
+/////////////
+
+Texture2D shaderTexture1 : register(t0);
+Texture2D shaderTexture2 : register(t1);
+Texture2D shaderTexture3 : register(t2);
+SamplerState SampleType : register(s0);
+
+cbuffer LightBuffer
+{
+    float4 diffuseColor;
+    float4 specularColor;
+    float specularPower;
+    float3 lightDirection;
+};
+
+//////////////
+// TYPEDEFS //
+//////////////
+struct PixelInputType
+{
+    float4 position : SV_POSITION;
+    float2 tex : TEXCOORD0;
+    float3 normal : NORMAL;
+    float3 tangent : TANGENT;
+    float3 binormal : BINORMAL;
+    float3 viewDirection : TEXCOORD1;
+};
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Pixel Shader
+////////////////////////////////////////////////////////////////////////////////
+float4 SpecMapPixelShader(PixelInputType input) : SV_TARGET
+{
+    float4 textureColor;
+    float4 bumpMap;
+    float3 bumpNormal;
+    float3 lightDir;
+    float lightIntensity;
+    float4 color;
+    float4 specularIntensity;
+    float3 reflection;
+    float4 specular;
+
+    // Sample the pixel color from the color texture at this location.
+    textureColor = shaderTexture1.Sample(SampleType, input.tex);
+
+    // Sample the pixel from the normal map.
+    bumpMap = shaderTexture2.Sample(SampleType, input.tex);
+
+    // Expand the range of the normal value from (0, +1) to (-1, +1).
+    bumpMap = (bumpMap * 2.0f) - 1.0f;
+
+    // Calculate the normal from the data in the normal map.
+    bumpNormal = (bumpMap.x * input.tangent) + (bumpMap.y * input.binormal) + (bumpMap.z * input.normal);
+
+    // Normalize the resulting bump normal.
+    bumpNormal = normalize(bumpNormal);
+
+    // Invert the light direction for calculations.
+    lightDir = -lightDirection;
+
+    // Calculate the amount of light on this pixel based on the normal map value.
+    lightIntensity = saturate(dot(bumpNormal, lightDir));
+
+    // Determine the final amount of diffuse color based on the diffuse color combined with the light intensity.
+    color = saturate(diffuseColor * lightIntensity);
+
+    // Combine the final light color with the texture color.
+    color = color * textureColor;
+
+    if(lightIntensity > 0.0f)
+    {
+        // Sample the pixel from the specular map texture.
+        specularIntensity = shaderTexture3.Sample(SampleType, input.tex);
+
+        // Calculate the reflection vector based on the light intensity, normal vector, and light direction.
+        reflection = normalize(2 * lightIntensity * bumpNormal - lightDir); 
+
+        // Determine the amount of specular light based on the reflection vector, viewing direction, and specular power.
+        specular = pow(saturate(dot(reflection, input.viewDirection)), specularPower);
+
+        // Use the specular map to determine the intensity of specular light at this pixel.
+        specular = specular * specularIntensity;
+		
+        // Add the specular component last to the output color.
+        color = saturate(color + specular);
+    }
+
+    return color;
+}

enginecustom/specmap.vs

@@ -0,0 +1,83 @@
+/////////////
+// GLOBALS //
+/////////////
+cbuffer MatrixBuffer
+{
+    matrix worldMatrix;
+    matrix viewMatrix;
+    matrix projectionMatrix;
+};
+
+cbuffer CameraBuffer
+{
+    float3 cameraPosition;
+    float padding;
+};
+
+
+//////////////
+// TYPEDEFS //
+//////////////
+struct VertexInputType
+{
+    float4 position : POSITION;
+    float2 tex : TEXCOORD0;
+    float3 normal : NORMAL;
+    float3 tangent : TANGENT;
+    float3 binormal : BINORMAL;
+};
+
+struct PixelInputType
+{
+    float4 position : SV_POSITION;
+    float2 tex : TEXCOORD0;
+    float3 normal : NORMAL;
+    float3 tangent : TANGENT;
+    float3 binormal : BINORMAL;
+    float3 viewDirection : TEXCOORD1;
+};
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Vertex Shader
+////////////////////////////////////////////////////////////////////////////////
+PixelInputType SpecMapVertexShader(VertexInputType input)
+{
+    PixelInputType output;
+    float4 worldPosition;
+
+
+    // 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;
+    
+    // Calculate the normal vector against the world matrix only and then normalize the final value.
+    output.normal = mul(input.normal, (float3x3)worldMatrix);
+    output.normal = normalize(output.normal);
+
+    // Calculate the tangent vector against the world matrix only and then normalize the final value.
+    output.tangent = mul(input.tangent, (float3x3)worldMatrix);
+    output.tangent = normalize(output.tangent);
+
+    // Calculate the binormal vector against the world matrix only and then normalize the final value.
+    output.binormal = mul(input.binormal, (float3x3)worldMatrix);
+    output.binormal = normalize(output.binormal);
+
+    // Calculate the position of the vertex in the world.
+    worldPosition = mul(input.position, worldMatrix);
+
+    // Determine the viewing direction based on the position of the camera and the position of the vertex in the world.
+    output.viewDirection = cameraPosition.xyz - worldPosition.xyz;
+	
+    // Normalize the viewing direction vector.
+    output.viewDirection = normalize(output.viewDirection);
+
+    return output;
+}

enginecustom/specmapshaderclass.cpp

@@ -0,0 +1,492 @@
+#include "specmapshaderclass.h"
+
+
+SpecMapShaderClass::SpecMapShaderClass()
+{
+    m_vertexShader = 0;
+    m_pixelShader = 0;
+    m_layout = 0;
+    m_matrixBuffer = 0;
+    m_sampleState = 0;
+    m_lightBuffer = 0;
+    m_cameraBuffer = 0;
+}
+
+
+SpecMapShaderClass::SpecMapShaderClass(const SpecMapShaderClass& other)
+{
+}
+
+
+SpecMapShaderClass::~SpecMapShaderClass()
+{
+}
+
+
+bool SpecMapShaderClass::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"specmap.vs");
+    if (error != 0)
+    {
+        return false;
+    }
+
+    // Set the filename of the pixel shader.
+    error = wcscpy_s(psFilename, 128, L"specmap.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 SpecMapShaderClass::Shutdown()
+{
+    // Shutdown the vertex and pixel shaders as well as the related objects.
+    ShutdownShader();
+
+    return;
+}
+
+bool SpecMapShaderClass::Render(ID3D11DeviceContext* deviceContext, int indexCount, XMMATRIX worldMatrix, XMMATRIX viewMatrix, XMMATRIX projectionMatrix,
+    ID3D11ShaderResourceView* texture1, ID3D11ShaderResourceView* texture2, ID3D11ShaderResourceView* texture3,
+    XMFLOAT3 lightDirection, XMFLOAT4 diffuseColor, XMFLOAT3 cameraPosition, XMFLOAT4 specularColor, float specularPower)
+{
+    bool result;
+
+
+    // Set the shader parameters that it will use for rendering.
+    result = SetShaderParameters(deviceContext, worldMatrix, viewMatrix, projectionMatrix, texture1, texture2, texture3, lightDirection, diffuseColor,
+        cameraPosition, specularColor, specularPower);
+    if (!result)
+    {
+        return false;
+    }
+
+    // Now render the prepared buffers with the shader.
+    RenderShader(deviceContext, indexCount);
+
+    return true;
+}
+
+
+bool SpecMapShaderClass::InitializeShader(ID3D11Device* device, HWND hwnd, WCHAR* vsFilename, WCHAR* psFilename)
+{
+    HRESULT result;
+    ID3D10Blob* errorMessage;
+    ID3D10Blob* vertexShaderBuffer;
+    ID3D10Blob* pixelShaderBuffer;
+    D3D11_INPUT_ELEMENT_DESC polygonLayout[5];
+    unsigned int numElements;
+    D3D11_BUFFER_DESC matrixBufferDesc;
+    D3D11_SAMPLER_DESC samplerDesc;
+    D3D11_BUFFER_DESC lightBufferDesc;
+    D3D11_BUFFER_DESC cameraBufferDesc;
+
+
+    // 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, "SpecMapVertexShader", "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, "SpecMapPixelShader", "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;
+
+    polygonLayout[2].SemanticName = "NORMAL";
+    polygonLayout[2].SemanticIndex = 0;
+    polygonLayout[2].Format = DXGI_FORMAT_R32G32B32_FLOAT;
+    polygonLayout[2].InputSlot = 0;
+    polygonLayout[2].AlignedByteOffset = D3D11_APPEND_ALIGNED_ELEMENT;
+    polygonLayout[2].InputSlotClass = D3D11_INPUT_PER_VERTEX_DATA;
+    polygonLayout[2].InstanceDataStepRate = 0;
+
+    polygonLayout[3].SemanticName = "TANGENT";
+    polygonLayout[3].SemanticIndex = 0;
+    polygonLayout[3].Format = DXGI_FORMAT_R32G32B32_FLOAT;
+    polygonLayout[3].InputSlot = 0;
+    polygonLayout[3].AlignedByteOffset = D3D11_APPEND_ALIGNED_ELEMENT;
+    polygonLayout[3].InputSlotClass = D3D11_INPUT_PER_VERTEX_DATA;
+    polygonLayout[3].InstanceDataStepRate = 0;
+
+    polygonLayout[4].SemanticName = "BINORMAL";
+    polygonLayout[4].SemanticIndex = 0;
+    polygonLayout[4].Format = DXGI_FORMAT_R32G32B32_FLOAT;
+    polygonLayout[4].InputSlot = 0;
+    polygonLayout[4].AlignedByteOffset = D3D11_APPEND_ALIGNED_ELEMENT;
+    polygonLayout[4].InputSlotClass = D3D11_INPUT_PER_VERTEX_DATA;
+    polygonLayout[4].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 light dynamic constant buffer that is in the pixel shader.
+    lightBufferDesc.Usage = D3D11_USAGE_DYNAMIC;
+    lightBufferDesc.ByteWidth = sizeof(LightBufferType);
+    lightBufferDesc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
+    lightBufferDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
+    lightBufferDesc.MiscFlags = 0;
+    lightBufferDesc.StructureByteStride = 0;
+
+    // Create the constant buffer pointer so we can access the vertex shader constant buffer from within this class.
+    result = device->CreateBuffer(&lightBufferDesc, NULL, &m_lightBuffer);
+    if (FAILED(result))
+    {
+        return false;
+    }
+
+    // Setup the description of the camera dynamic constant buffer that is in the vertex shader.
+    cameraBufferDesc.Usage = D3D11_USAGE_DYNAMIC;
+    cameraBufferDesc.ByteWidth = sizeof(CameraBufferType);
+    cameraBufferDesc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
+    cameraBufferDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
+    cameraBufferDesc.MiscFlags = 0;
+    cameraBufferDesc.StructureByteStride = 0;
+
+    // Create the camera constant buffer pointer so we can access the vertex shader constant buffer from within this class.
+    result = device->CreateBuffer(&cameraBufferDesc, NULL, &m_cameraBuffer);
+    if (FAILED(result))
+    {
+        return false;
+    }
+
+    return true;
+}
+
+
+void SpecMapShaderClass::ShutdownShader()
+{
+    // Release the camera constant buffer.
+    if (m_cameraBuffer)
+    {
+        m_cameraBuffer->Release();
+        m_cameraBuffer = 0;
+    }
+
+    // Release the light constant buffer.
+    if (m_lightBuffer)
+    {
+        m_lightBuffer->Release();
+        m_lightBuffer = 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 SpecMapShaderClass::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 SpecMapShaderClass::SetShaderParameters(ID3D11DeviceContext* deviceContext, XMMATRIX worldMatrix, XMMATRIX viewMatrix, XMMATRIX projectionMatrix,
+    ID3D11ShaderResourceView* texture1, ID3D11ShaderResourceView* texture2, ID3D11ShaderResourceView* texture3,
+    XMFLOAT3 lightDirection, XMFLOAT4 diffuseColor, XMFLOAT3 cameraPosition, XMFLOAT4 specularColor, float specularPower)
+{
+    HRESULT result;
+    D3D11_MAPPED_SUBRESOURCE mappedResource;
+    MatrixBufferType* dataPtr;
+    unsigned int bufferNumber;
+    LightBufferType* dataPtr2;
+    CameraBufferType* dataPtr3;
+
+
+    // 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 resources in the pixel shader.
+    deviceContext->PSSetShaderResources(0, 1, &texture1);
+    deviceContext->PSSetShaderResources(1, 1, &texture2);
+    deviceContext->PSSetShaderResources(2, 1, &texture3);
+
+    // Lock the light constant buffer so it can be written to.
+    result = deviceContext->Map(m_lightBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
+    if (FAILED(result))
+    {
+        return false;
+    }
+
+    // Get a pointer to the data in the constant buffer.
+    dataPtr2 = (LightBufferType*)mappedResource.pData;
+
+    // Copy the lighting variables into the constant buffer.
+    dataPtr2->diffuseColor = diffuseColor;
+    dataPtr2->lightDirection = lightDirection;
+    dataPtr2->specularColor = specularColor;
+    dataPtr2->specularPower = specularPower;
+
+    // Unlock the constant buffer.
+    deviceContext->Unmap(m_lightBuffer, 0);
+
+    // Set the position of the light constant buffer in the pixel shader.
+    bufferNumber = 0;
+
+    // Finally set the light constant buffer in the pixel shader with the updated values.
+    deviceContext->PSSetConstantBuffers(bufferNumber, 1, &m_lightBuffer);
+
+    // Lock the camera constant buffer so it can be written to.
+    result = deviceContext->Map(m_cameraBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
+    if (FAILED(result))
+    {
+        return false;
+    }
+
+    // Get a pointer to the data in the constant buffer.
+    dataPtr3 = (CameraBufferType*)mappedResource.pData;
+
+    // Copy the camera position into the constant buffer.
+    dataPtr3->cameraPosition = cameraPosition;
+
+    // Unlock the camera constant buffer.
+    deviceContext->Unmap(m_cameraBuffer, 0);
+
+    // Set the position of the camera constant buffer in the vertex shader as the second buffer.
+    bufferNumber = 1;
+
+    // Now set the camera constant buffer in the vertex shader with the updated values.
+    deviceContext->VSSetConstantBuffers(bufferNumber, 1, &m_cameraBuffer);
+
+    return true;
+}
+
+
+void SpecMapShaderClass::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 this model.
+    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 model.
+    deviceContext->DrawIndexed(indexCount, 0, 0);
+
+    return;
+}

enginecustom/specmapshaderclass.h

@@ -0,0 +1,72 @@
+#ifndef _SPECMAPSHADERCLASS_H_
+#define _SPECMAPSHADERCLASS_H_
+
+
+//////////////
+// INCLUDES //
+//////////////
+#include <d3d11.h>
+#include <d3dcompiler.h>
+#include <directxmath.h>
+#include <fstream>
+using namespace DirectX;
+using namespace std;
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Class name: SpecMapShaderClass
+////////////////////////////////////////////////////////////////////////////////
+class SpecMapShaderClass
+{
+private:
+    struct MatrixBufferType
+    {
+        XMMATRIX world;
+        XMMATRIX view;
+        XMMATRIX projection;
+    };
+
+    struct LightBufferType
+    {
+        XMFLOAT4 diffuseColor;
+        XMFLOAT4 specularColor;
+        float specularPower;
+        XMFLOAT3 lightDirection;
+    };
+
+    struct CameraBufferType
+    {
+        XMFLOAT3 cameraPosition;
+        float padding;
+    };
+
+public:
+    SpecMapShaderClass();
+    SpecMapShaderClass(const SpecMapShaderClass&);
+    ~SpecMapShaderClass();
+
+    bool Initialize(ID3D11Device*, HWND);
+    void Shutdown();
+    bool Render(ID3D11DeviceContext*, int, XMMATRIX, XMMATRIX, XMMATRIX, ID3D11ShaderResourceView*, ID3D11ShaderResourceView*, ID3D11ShaderResourceView*,
+        XMFLOAT3, XMFLOAT4, XMFLOAT3, XMFLOAT4, float);
+
+private:
+    bool InitializeShader(ID3D11Device*, HWND, WCHAR*, WCHAR*);
+    void ShutdownShader();
+    void OutputShaderErrorMessage(ID3D10Blob*, HWND, WCHAR*);
+
+    bool SetShaderParameters(ID3D11DeviceContext*, XMMATRIX, XMMATRIX, XMMATRIX, ID3D11ShaderResourceView*, ID3D11ShaderResourceView*, ID3D11ShaderResourceView*,
+        XMFLOAT3, XMFLOAT4, XMFLOAT3, XMFLOAT4, float);
+    void RenderShader(ID3D11DeviceContext*, int);
+
+private:
+    ID3D11VertexShader* m_vertexShader;
+    ID3D11PixelShader* m_pixelShader;
+    ID3D11InputLayout* m_layout;
+    ID3D11Buffer* m_matrixBuffer;
+    ID3D11SamplerState* m_sampleState;
+    ID3D11Buffer* m_lightBuffer;
+    ID3D11Buffer* m_cameraBuffer;
+};
+
+#endif