Water Shader a finir dans le shader manager

KhaoticDemo/water.ps

@@ -0,0 +1,72 @@
+/////////////
+// GLOBALS //
+/////////////
+SamplerState SampleType : register(s0);
+
+Texture2D reflectionTexture : register(t0);
+Texture2D refractionTexture : register(t1);
+Texture2D normalTexture : register(t2);
+
+cbuffer WaterBuffer
+{
+    float waterTranslation;
+    float reflectRefractScale;
+    float2 padding;
+};
+
+
+//////////////
+// TYPEDEFS //
+//////////////
+struct PixelInputType
+{
+    float4 position : SV_POSITION;
+    float2 tex : TEXCOORD0;
+    float4 reflectionPosition : TEXCOORD1;
+    float4 refractionPosition : TEXCOORD2;
+};
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Pixel Shader
+////////////////////////////////////////////////////////////////////////////////
+float4 WaterPixelShader(PixelInputType input) : SV_TARGET
+{
+    float2 reflectTexCoord;
+    float2 refractTexCoord;
+    float4 normalMap;
+    float3 normal;
+    float4 reflectionColor;
+    float4 refractionColor;
+    float4 color;
+
+     // Move the position the water normal is sampled from to simulate moving water.	
+    input.tex.y += waterTranslation;
+
+    // Calculate the projected reflection texture coordinates.
+    reflectTexCoord.x = input.reflectionPosition.x / input.reflectionPosition.w / 2.0f + 0.5f;
+    reflectTexCoord.y = -input.reflectionPosition.y / input.reflectionPosition.w / 2.0f + 0.5f;
+	
+    // Calculate the projected refraction texture coordinates.
+    refractTexCoord.x = input.refractionPosition.x / input.refractionPosition.w / 2.0f + 0.5f;
+    refractTexCoord.y = -input.refractionPosition.y / input.refractionPosition.w / 2.0f + 0.5f;
+
+    // Sample the normal from the normal map texture.
+    normalMap = normalTexture.Sample(SampleType, input.tex);
+
+    // Expand the range of the normal from (0,1) to (-1,+1).
+    normal = (normalMap.xyz * 2.0f) - 1.0f;
+
+    // Re-position the texture coordinate sampling position by the normal map value to simulate the rippling wave effect.
+    reflectTexCoord = reflectTexCoord + (normal.xy * reflectRefractScale);
+    refractTexCoord = refractTexCoord + (normal.xy * reflectRefractScale);
+
+    // Sample the texture pixels from the textures using the updated texture coordinates.
+    reflectionColor = reflectionTexture.Sample(SampleType, reflectTexCoord);
+    refractionColor = refractionTexture.Sample(SampleType, refractTexCoord);
+
+     // Combine the reflection and refraction results for the final color.
+    color = lerp(reflectionColor, refractionColor, 0.6f);
+	
+    return color;
+}

enginecustom/applicationclass.h

@@ -10,12 +10,10 @@
 #include "d3dclass.h"
 #include "cameraclass.h"
 #include "object.h"
-#include "lightshaderclass.h"
 #include "lightclass.h"
 #include <vector>
 #include <filesystem>
 
-#include "lightmapshaderclass.h"
 #include "bitmapclass.h"
 #include "spriteclass.h"
 #include "timerclass.h"
@@ -31,6 +29,8 @@
 #include "rendertextureclass.h"
 #include "displayplaneclass.h"
 #include "reflectionshaderclass.h"
+#include "refractionshaderclass.h"
+#include "watershaderclass.h"
 
 
 /////////////
@@ -91,6 +91,8 @@ private:
 	bool UpdateFps();
 	bool UpdateRenderCountString(int);
 	bool RenderSceneToTexture(float);
+	bool RenderRefractionToTexture();
+	bool RenderReflectionToTexture();
 
 private :
 
@@ -100,7 +102,7 @@ private :
 
 	D3DClass* m_Direct3D;
 	IDXGISwapChain* m_swapChain;
-	ModelClass* m_Model;
+	ModelClass* m_Model,* m_GroundModel, * m_WallModel, * m_BathModel, * m_WaterModel;
 	ModelListClass* m_ModelList;
 
 	// ------------------------------------- //
@@ -108,7 +110,7 @@ private :
 	// ------------------------------------- //
 
 	XMMATRIX m_baseViewMatrix;
-	RenderTextureClass* m_RenderTexture;
+	RenderTextureClass* m_RenderTexture, * m_RefractionTexture, * m_ReflectionTexture;
 	DisplayPlaneClass* m_DisplayPlane;
 	int m_screenWidth, m_screenHeight;
 	CameraClass* m_Camera;
@@ -138,12 +140,17 @@ private :
 	// ----------------------------------- //
 
 	ShaderManagerClass* m_ShaderManager;
+	WaterShaderClass* m_WaterShader;
 	FontShaderClass* m_FontShader;
-	ReflectionShaderClass* m_ReflectionShader;
-
 	BitmapClass* m_Bitmap;
 	SpriteClass* m_Sprite;
 
+	// ----------------------------------- //
+	// ------------ VARIABLES ------------ //
+	// ----------------------------------- //
+
+	float m_waterHeight, m_waterTranslation;
+
 	// ------------------------------------------------- //
 	// ------------- FPS AND INFO ON SCREEN ------------ //
 	// ------------------------------------------------- //

enginecustom/refraction.ps

@@ -0,0 +1,63 @@
+/////////////
+// GLOBALS //
+/////////////
+SamplerState SampleType : register(s0);
+Texture2D shaderTexture : register(t0);
+
+cbuffer LightBuffer
+{
+    float4 ambientColor;
+    float4 diffuseColor;
+    float3 lightDirection;
+};
+
+
+//////////////
+// TYPEDEFS //
+//////////////
+struct PixelInputType
+{
+    float4 position : SV_POSITION;
+    float2 tex : TEXCOORD0;
+    float3 normal : NORMAL;
+    float clip : SV_ClipDistance0;
+};
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Pixel Shader
+////////////////////////////////////////////////////////////////////////////////
+float4 RefractionPixelShader(PixelInputType input) : SV_TARGET
+{
+    float4 textureColor;
+    float3 lightDir;
+    float lightIntensity;
+    float4 color;
+	
+
+    // Sample the texture pixel at this location.
+    textureColor = shaderTexture.Sample(SampleType, input.tex);
+	
+    // Set the default output color to the ambient light value for all pixels.
+    color = ambientColor;
+
+    // Invert the light direction for calculations.
+    lightDir = -lightDirection;
+
+    // Calculate the amount of light on this pixel.
+    lightIntensity = saturate(dot(input.normal, lightDir));
+
+    if(lightIntensity > 0.0f)
+    {
+        // Determine the final diffuse color based on the diffuse color and the amount of light intensity.
+        color += (diffuseColor * lightIntensity);
+    }
+
+    // Saturate the final light color.
+    color = saturate(color);
+
+    // Multiply the texture pixel and the input color to get the final result.
+    color = color * textureColor;
+	
+    return color;
+}

enginecustom/refraction.vs

@@ -0,0 +1,65 @@
+/////////////
+// GLOBALS //
+/////////////
+cbuffer MatrixBuffer
+{
+    matrix worldMatrix;
+    matrix viewMatrix;
+    matrix projectionMatrix;
+};
+
+cbuffer ClipPlaneBuffer
+{
+    float4 clipPlane;
+};
+
+
+//////////////
+// TYPEDEFS //
+//////////////
+struct VertexInputType
+{
+    float4 position : POSITION;
+    float2 tex : TEXCOORD0;
+    float3 normal : NORMAL;
+};
+
+struct PixelInputType
+{
+    float4 position : SV_POSITION;
+    float2 tex : TEXCOORD0;
+    float3 normal : NORMAL;
+    float clip : SV_ClipDistance0;
+};
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Vertex Shader
+////////////////////////////////////////////////////////////////////////////////
+PixelInputType RefractionVertexShader(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;
+    
+    // Calculate the normal vector against the world matrix only.
+    output.normal = mul(input.normal, (float3x3)worldMatrix);
+	
+    // Normalize the normal vector.
+    output.normal = normalize(output.normal);
+
+    // Set the clipping plane.
+    output.clip = dot(mul(input.position, worldMatrix), clipPlane);
+
+    return output;
+}

enginecustom/refractionshaderclass.cpp

@@ -0,0 +1,472 @@
+#include "refractionshaderclass.h"
+
+
+RefractionShaderClass::RefractionShaderClass()
+{
+    m_vertexShader = 0;
+    m_pixelShader = 0;
+    m_layout = 0;
+    m_matrixBuffer = 0;
+    m_sampleState = 0;
+    m_lightBuffer = 0;
+    m_clipPlaneBuffer = 0;
+}
+
+
+RefractionShaderClass::RefractionShaderClass(const RefractionShaderClass& other)
+{
+}
+
+
+RefractionShaderClass::~RefractionShaderClass()
+{
+}
+
+
+bool RefractionShaderClass::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"refraction.vs");
+    if (error != 0)
+    {
+        return false;
+    }
+
+    // Set the filename of the pixel shader.
+    error = wcscpy_s(psFilename, 128, L"refraction.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 RefractionShaderClass::Shutdown()
+{
+    // Shutdown the vertex and pixel shaders as well as the related objects.
+    ShutdownShader();
+
+    return;
+}
+
+bool RefractionShaderClass::Render(ID3D11DeviceContext* deviceContext, int indexCount, XMMATRIX worldMatrix, XMMATRIX viewMatrix, XMMATRIX projectionMatrix,
+    ID3D11ShaderResourceView* texture, XMFLOAT3 lightDirection, XMFLOAT4 ambientColor, XMFLOAT4 diffuseColor, XMFLOAT4 clipPlane)
+{
+    bool result;
+
+
+    // Set the shader parameters that it will use for rendering.
+    result = SetShaderParameters(deviceContext, worldMatrix, viewMatrix, projectionMatrix, texture, lightDirection, ambientColor, diffuseColor, clipPlane);
+    if (!result)
+    {
+        return false;
+    }
+
+    // Now render the prepared buffers with the shader.
+    RenderShader(deviceContext, indexCount);
+
+    return true;
+}
+
+
+bool RefractionShaderClass::InitializeShader(ID3D11Device* device, HWND hwnd, WCHAR* vsFilename, WCHAR* psFilename)
+{
+    HRESULT result;
+    ID3D10Blob* errorMessage;
+    ID3D10Blob* vertexShaderBuffer;
+    ID3D10Blob* pixelShaderBuffer;
+    D3D11_INPUT_ELEMENT_DESC polygonLayout[3];
+    unsigned int numElements;
+    D3D11_BUFFER_DESC matrixBufferDesc;
+    D3D11_SAMPLER_DESC samplerDesc;
+    D3D11_BUFFER_DESC lightBufferDesc;
+    D3D11_BUFFER_DESC clipPlaneBufferDesc;
+
+
+    // 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, "RefractionVertexShader", "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, "RefractionPixelShader", "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;
+
+    // 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_CLAMP;
+    samplerDesc.AddressV = D3D11_TEXTURE_ADDRESS_CLAMP;
+    samplerDesc.AddressW = D3D11_TEXTURE_ADDRESS_CLAMP;
+    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.
+    // Note that ByteWidth always needs to be a multiple of 16 if using D3D11_BIND_CONSTANT_BUFFER or CreateBuffer will fail.
+    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 clip plane dynamic constant buffer that is in the vertex shader.
+    clipPlaneBufferDesc.Usage = D3D11_USAGE_DYNAMIC;
+    clipPlaneBufferDesc.ByteWidth = sizeof(ClipPlaneBufferType);
+    clipPlaneBufferDesc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
+    clipPlaneBufferDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
+    clipPlaneBufferDesc.MiscFlags = 0;
+    clipPlaneBufferDesc.StructureByteStride = 0;
+
+    // Create the constant buffer pointer so we can access the vertex shader constant buffer from within this class.
+    result = device->CreateBuffer(&clipPlaneBufferDesc, NULL, &m_clipPlaneBuffer);
+    if (FAILED(result))
+    {
+        return false;
+    }
+
+    return true;
+}
+
+
+void RefractionShaderClass::ShutdownShader()
+{
+    // Release the clip plane constant buffer.
+    if (m_clipPlaneBuffer)
+    {
+        m_clipPlaneBuffer->Release();
+        m_clipPlaneBuffer = 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 RefractionShaderClass::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 RefractionShaderClass::SetShaderParameters(ID3D11DeviceContext* deviceContext, XMMATRIX worldMatrix, XMMATRIX viewMatrix, XMMATRIX projectionMatrix,
+    ID3D11ShaderResourceView* texture, XMFLOAT3 lightDirection, XMFLOAT4 ambientColor, XMFLOAT4 diffuseColor, XMFLOAT4 clipPlane)
+{
+    HRESULT result;
+    D3D11_MAPPED_SUBRESOURCE mappedResource;
+    MatrixBufferType* dataPtr;
+    unsigned int bufferNumber;
+    ClipPlaneBufferType* dataPtr2;
+    LightBufferType* 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);
+
+     // Lock the clip plane constant buffer so it can be written to.
+    result = deviceContext->Map(m_clipPlaneBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
+    if(FAILED(result))
+    {
+        return false;
+    }
+
+    // Get a pointer to the data in the clip plane constant buffer.
+    dataPtr2 = (ClipPlaneBufferType*)mappedResource.pData;
+
+    // Copy the clip plane into the clip plane constant buffer.
+    dataPtr2->clipPlane = clipPlane;
+
+    // Unlock the buffer.
+    deviceContext->Unmap(m_clipPlaneBuffer, 0);
+
+    // Set the position of the clip plane constant buffer in the vertex shader.
+    bufferNumber = 1;
+
+    // Now set the clip plane constant buffer in the vertex shader with the updated values.
+    deviceContext->VSSetConstantBuffers(bufferNumber, 1, &m_clipPlaneBuffer);
+
+    // Set shader texture resource in the pixel shader.
+    deviceContext->PSSetShaderResources(0, 1, &texture);
+
+    // 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.
+    dataPtr3 = (LightBufferType*)mappedResource.pData;
+
+    // Copy the lighting variables into the constant buffer.
+    dataPtr3->ambientColor = ambientColor;
+    dataPtr3->diffuseColor = diffuseColor;
+    dataPtr3->lightDirection = lightDirection;
+
+    // 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);
+
+    return true;
+}
+
+
+void RefractionShaderClass::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/refractionshaderclass.h

@@ -0,0 +1,71 @@
+#ifndef _REFRACTIONSHADERCLASS_H_
+#define _REFRACTIONSHADERCLASS_H_
+
+
+//////////////
+// INCLUDES //
+//////////////
+#include <d3d11.h>
+#include <d3dcompiler.h>
+#include <directxmath.h>
+#include <fstream>
+using namespace DirectX;
+using namespace std;
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Class name: RefractionShaderClass
+////////////////////////////////////////////////////////////////////////////////
+class RefractionShaderClass
+{
+private:
+    struct MatrixBufferType
+    {
+        XMMATRIX world;
+        XMMATRIX view;
+        XMMATRIX projection;
+    };
+
+    struct LightBufferType
+    {
+        XMFLOAT4 ambientColor;
+        XMFLOAT4 diffuseColor;
+        XMFLOAT3 lightDirection;
+        float padding;
+    };
+
+    struct ClipPlaneBufferType
+    {
+        XMFLOAT4 clipPlane;
+    };
+
+public:
+    RefractionShaderClass();
+    RefractionShaderClass(const RefractionShaderClass&);
+    ~RefractionShaderClass();
+
+    bool Initialize(ID3D11Device*, HWND);
+    void Shutdown();
+    bool Render(ID3D11DeviceContext*, int, XMMATRIX, XMMATRIX, XMMATRIX, ID3D11ShaderResourceView*,
+        XMFLOAT3, XMFLOAT4, XMFLOAT4, XMFLOAT4);
+
+private:
+    bool InitializeShader(ID3D11Device*, HWND, WCHAR*, WCHAR*);
+    void ShutdownShader();
+    void OutputShaderErrorMessage(ID3D10Blob*, HWND, WCHAR*);
+
+    bool SetShaderParameters(ID3D11DeviceContext*, XMMATRIX, XMMATRIX, XMMATRIX, ID3D11ShaderResourceView*,
+        XMFLOAT3, XMFLOAT4, XMFLOAT4, XMFLOAT4);
+    void RenderShader(ID3D11DeviceContext*, int);
+
+private:
+    ID3D11VertexShader* m_vertexShader;
+    ID3D11PixelShader* m_pixelShader;
+    ID3D11InputLayout* m_layout;
+    ID3D11SamplerState* m_sampleState;
+    ID3D11Buffer* m_matrixBuffer;
+    ID3D11Buffer* m_lightBuffer;
+    ID3D11Buffer* m_clipPlaneBuffer;
+};
+
+#endif

enginecustom/shadermanagerclass.cpp

@@ -11,6 +11,8 @@ ShaderManagerClass::ShaderManagerClass()
     m_TransparentShader = 0;
     m_LightShader = 0;
     m_LightMapShader = 0;
+    m_RefractionShader = 0;
+    m_WaterShader = 0;
 }
 
 
@@ -109,6 +111,24 @@ bool ShaderManagerClass::Initialize(ID3D11Device* device, HWND hwnd)
         return false;
     }
 
+    // Create and initialize the refraction shader object.
+    m_RefractionShader = new RefractionShaderClass;
+
+    result = m_RefractionShader->Initialize(device, hwnd);
+    if (!result)
+    {
+        return false;
+    }
+
+    // Create and initialize the water shader object.
+    m_WaterShader = new WaterShaderClass;
+
+    result = m_WaterShader->Initialize(device, hwnd);
+    if (!result)
+    {
+        return false;
+    }
+
     return true;
 }
 
@@ -186,6 +206,22 @@ void ShaderManagerClass::Shutdown()
         m_LightMapShader = 0;
     }
 
+    // Release the refraction shader object.
+    if (m_RefractionShader)
+    {
+        m_RefractionShader->Shutdown();
+        delete m_RefractionShader;
+        m_RefractionShader = 0;
+    }
+
+    // Release the water shader object.
+    if (m_WaterShader)
+    {
+        m_WaterShader->Shutdown();
+        delete m_WaterShader;
+        m_WaterShader = 0;
+    }
+
     return;
       
 }
@@ -324,5 +360,36 @@ bool ShaderManagerClass::RenderlightMapShader(ID3D11DeviceContext* deviceContext
         return false;
     }
 
+    return true;
+}
+
+bool ShaderManagerClass::RenderRefractionShader(ID3D11DeviceContext* deviceContext, int indexCount, XMMATRIX worldMatrix, XMMATRIX viewMatrix, XMMATRIX projectionMatrix,
+    ID3D11ShaderResourceView* texture, XMFLOAT3 lightDirection, XMFLOAT4 ambientColor, XMFLOAT4 diffuseColor, XMFLOAT4 clipPlane)
+{
+    bool result;
+
+
+    result = m_RefractionShader->Render(deviceContext, indexCount, worldMatrix, viewMatrix, projectionMatrix, texture, lightDirection, ambientColor, diffuseColor, clipPlane);
+    if (!result)
+    {
+        return false;
+    }
+
+    return true;
+}
+
+bool ShaderManagerClass::RenderWaterShader(ID3D11DeviceContext* deviceContext, XMMATRIX worldMatrix, XMMATRIX viewMatrix, XMMATRIX projectionMatrix, XMMATRIX reflectionMatrix,
+    ID3D11ShaderResourceView* reflectionTexture, ID3D11ShaderResourceView* refractionTexture, ID3D11ShaderResourceView* normalTexture,
+    float waterTranslation, float reflectRefractScale)
+{
+    bool result;
+
+
+    result = m_RefractionShader->Render(deviceContext, indexCount, worldMatrix, viewMatrix, projectionMatrix, texture, lightDirection, ambientColor, diffuseColor, clipPlane);
+    if (!result)
+    {
+        return false;
+    }
+
     return true;
 }

enginecustom/shadermanagerclass.h

@@ -13,6 +13,8 @@
 #include "transparentshaderclass.h"
 #include "lightshaderclass.h"
 #include "lightmapshaderclass.h"
+#include "refractionshaderclass.h"
+#include "watershaderclass.h"
 
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -37,7 +39,10 @@ public:
     bool RenderTransparentShader(ID3D11DeviceContext*, int, XMMATRIX, XMMATRIX, XMMATRIX, ID3D11ShaderResourceView*, float);
     bool RenderlightShader(ID3D11DeviceContext*, int, XMMATRIX, XMMATRIX, XMMATRIX, ID3D11ShaderResourceView*, XMFLOAT4[], XMFLOAT4[]);
     bool RenderlightMapShader(ID3D11DeviceContext*, int, XMMATRIX, XMMATRIX, XMMATRIX, ID3D11ShaderResourceView*, ID3D11ShaderResourceView*);
-
+    bool RenderRefractionShader(ID3D11DeviceContext*, int, XMMATRIX, XMMATRIX, XMMATRIX, ID3D11ShaderResourceView*,
+        XMFLOAT3, XMFLOAT4, XMFLOAT4, XMFLOAT4);
+    bool RenderWaterShader(ID3D11DeviceContext*, int, XMMATRIX, XMMATRIX, XMMATRIX, XMMATRIX, ID3D11ShaderResourceView*, ID3D11ShaderResourceView*, 
+        ID3D11ShaderResourceView*, float, float);
 private:
     TextureShaderClass* m_TextureShader;
     NormalMapShaderClass* m_NormalMapShader;
@@ -48,6 +53,8 @@ private:
     TransparentShaderClass* m_TransparentShader;
     LightShaderClass* m_LightShader;
     LightMapShaderClass* m_LightMapShader;
+    RefractionShaderClass* m_RefractionShader;
+    WaterShaderClass* m_WaterShader;
 };
 
 #endif

enginecustom/water.vs

@@ -0,0 +1,71 @@
+/////////////
+// GLOBALS //
+/////////////
+cbuffer MatrixBuffer
+{
+    matrix worldMatrix;
+    matrix viewMatrix;
+    matrix projectionMatrix;
+};
+
+cbuffer ReflectionBuffer
+{
+    matrix reflectionMatrix;
+};
+
+
+//////////////
+// TYPEDEFS //
+//////////////
+struct VertexInputType
+{
+    float4 position : POSITION;
+    float2 tex : TEXCOORD0;
+};
+
+struct PixelInputType
+{
+    float4 position : SV_POSITION;
+    float2 tex : TEXCOORD0;
+    float4 reflectionPosition : TEXCOORD1;
+    float4 refractionPosition : TEXCOORD2;
+};
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Vertex Shader
+////////////////////////////////////////////////////////////////////////////////
+PixelInputType WaterVertexShader(VertexInputType input)
+{
+    PixelInputType output;
+    matrix reflectProjectWorld;
+    matrix viewProjectWorld;
+	
+    
+    // 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;
+
+    // Create the reflection projection world matrix.
+    reflectProjectWorld = mul(reflectionMatrix, projectionMatrix);
+    reflectProjectWorld = mul(worldMatrix, reflectProjectWorld);
+
+    // Calculate the input position against the reflectProjectWorld matrix.
+    output.reflectionPosition = mul(input.position, reflectProjectWorld);
+
+    // Create the view projection world matrix for refraction.
+    viewProjectWorld = mul(viewMatrix, projectionMatrix);
+    viewProjectWorld = mul(worldMatrix, viewProjectWorld);
+   
+    // Calculate the input position against the viewProjectWorld matrix.
+    output.refractionPosition = mul(input.position, viewProjectWorld);
+	
+    return output;
+}

enginecustom/watershaderclass.cpp

@@ -0,0 +1,470 @@
+#include "watershaderclass.h"
+
+
+WaterShaderClass::WaterShaderClass()
+{
+    m_vertexShader = 0;
+    m_pixelShader = 0;
+    m_layout = 0;
+    m_sampleState = 0;
+    m_matrixBuffer = 0;
+    m_reflectionBuffer = 0;
+    m_waterBuffer = 0;
+}
+
+
+WaterShaderClass::WaterShaderClass(const WaterShaderClass& other)
+{
+}
+
+
+WaterShaderClass::~WaterShaderClass()
+{
+}
+
+
+bool WaterShaderClass::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"../Engine/water.vs");
+    if (error != 0)
+    {
+        return false;
+    }
+
+    // Set the filename of the pixel shader.
+    error = wcscpy_s(psFilename, 128, L"../Engine/water.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 WaterShaderClass::Shutdown()
+{
+    // Shutdown the vertex and pixel shaders as well as the related objects.
+    ShutdownShader();
+
+    return;
+}
+
+bool WaterShaderClass::Render(ID3D11DeviceContext* deviceContext, int indexCount, XMMATRIX worldMatrix, XMMATRIX viewMatrix, XMMATRIX projectionMatrix,
+    XMMATRIX reflectionMatrix, ID3D11ShaderResourceView* reflectionTexture, ID3D11ShaderResourceView* refractionTexture,
+    ID3D11ShaderResourceView* normalTexture, float waterTranslation, float reflectRefractScale)
+{
+    bool result;
+
+
+    // Set the shader parameters that it will use for rendering.
+    result = SetShaderParameters(deviceContext, worldMatrix, viewMatrix, projectionMatrix, reflectionMatrix, reflectionTexture,
+        refractionTexture, normalTexture, waterTranslation, reflectRefractScale);
+    if (!result)
+    {
+        return false;
+    }
+
+    // Now render the prepared buffers with the shader.
+    RenderShader(deviceContext, indexCount);
+
+    return true;
+}
+
+
+bool WaterShaderClass::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 reflectionBufferDesc;
+    D3D11_BUFFER_DESC waterBufferDesc;
+
+
+    // 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, "WaterVertexShader", "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, "WaterPixelShader", "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 reflection dynamic constant buffer that is in the vertex shader.
+    reflectionBufferDesc.Usage = D3D11_USAGE_DYNAMIC;
+    reflectionBufferDesc.ByteWidth = sizeof(ReflectionBufferType);
+    reflectionBufferDesc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
+    reflectionBufferDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
+    reflectionBufferDesc.MiscFlags = 0;
+    reflectionBufferDesc.StructureByteStride = 0;
+
+    // Create the constant buffer pointer so we can access the vertex shader constant buffer from within this class.
+    result = device->CreateBuffer(&reflectionBufferDesc, NULL, &m_reflectionBuffer);
+    if (FAILED(result))
+    {
+        return false;
+    }
+
+    // Setup the description of the water dynamic constant buffer that is in the pixel shader.
+    waterBufferDesc.Usage = D3D11_USAGE_DYNAMIC;
+    waterBufferDesc.ByteWidth = sizeof(WaterBufferType);
+    waterBufferDesc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
+    waterBufferDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
+    waterBufferDesc.MiscFlags = 0;
+    waterBufferDesc.StructureByteStride = 0;
+
+    // Create the constant buffer pointer so we can access the pixel shader constant buffer from within this class.
+    result = device->CreateBuffer(&waterBufferDesc, NULL, &m_waterBuffer);
+    if (FAILED(result))
+    {
+        return false;
+    }
+
+    return true;
+}
+
+
+void WaterShaderClass::ShutdownShader()
+{
+    // Release the water constant buffer.
+    if (m_waterBuffer)
+    {
+        m_waterBuffer->Release();
+        m_waterBuffer = 0;
+    }
+
+    // Release the reflection constant buffer.
+    if (m_reflectionBuffer)
+    {
+        m_reflectionBuffer->Release();
+        m_reflectionBuffer = 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 WaterShaderClass::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 WaterShaderClass::SetShaderParameters(ID3D11DeviceContext* deviceContext, XMMATRIX worldMatrix, XMMATRIX viewMatrix, XMMATRIX projectionMatrix, XMMATRIX reflectionMatrix,
+    ID3D11ShaderResourceView* reflectionTexture, ID3D11ShaderResourceView* refractionTexture, ID3D11ShaderResourceView* normalTexture,
+    float waterTranslation, float reflectRefractScale)
+{
+    HRESULT result;
+    D3D11_MAPPED_SUBRESOURCE mappedResource;
+    MatrixBufferType* dataPtr;
+    unsigned int bufferNumber;
+    ReflectionBufferType* dataPtr2;
+    WaterBufferType* dataPtr3;
+
+    // Transpose the matrices to prepare them for the shader.
+    worldMatrix = XMMatrixTranspose(worldMatrix);
+    viewMatrix = XMMatrixTranspose(viewMatrix);
+    projectionMatrix = XMMatrixTranspose(projectionMatrix);
+    reflectionMatrix = XMMatrixTranspose(reflectionMatrix);
+
+    // 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;
+
+    // Finanly set the constant buffer in the vertex shader with the updated values.
+    deviceContext->VSSetConstantBuffers(bufferNumber, 1, &m_matrixBuffer);
+
+    // Lock the reflection constant buffer so it can be written to.
+    result = deviceContext->Map(m_reflectionBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
+    if (FAILED(result))
+    {
+        return false;
+    }
+
+    // Get a pointer to the data in the constant buffer.
+    dataPtr2 = (ReflectionBufferType*)mappedResource.pData;
+
+    // Copy the reflection matrix into the constant buffer.
+    dataPtr2->reflection = reflectionMatrix;
+
+    // Unlock the constant buffer.
+    deviceContext->Unmap(m_reflectionBuffer, 0);
+
+    // Set the position of the reflection constant buffer in the vertex shader.
+    bufferNumber = 1;
+
+    // Finally set the reflection constant buffer in the vertex shader with the updated values.
+    deviceContext->VSSetConstantBuffers(bufferNumber, 1, &m_reflectionBuffer);
+
+    // Set the reflection texture resource in the pixel shader.
+    deviceContext->PSSetShaderResources(0, 1, &reflectionTexture);
+
+    // Set the refraction texture resource in the pixel shader.
+    deviceContext->PSSetShaderResources(1, 1, &refractionTexture);
+
+    // Set the normal map texture resource in the pixel shader.
+    deviceContext->PSSetShaderResources(2, 1, &normalTexture);
+
+    // Lock the water constant buffer so it can be written to.
+    result = deviceContext->Map(m_waterBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
+    if (FAILED(result))
+    {
+        return false;
+    }
+
+    // Get a pointer to the data in the constant buffer.
+    dataPtr3 = (WaterBufferType*)mappedResource.pData;
+
+    // Copy the water data into the constant buffer.
+    dataPtr3->waterTranslation = waterTranslation;
+    dataPtr3->reflectRefractScale = reflectRefractScale;
+    dataPtr3->padding = XMFLOAT2(0.0f, 0.0f);
+
+    // Unlock the constant buffer.
+    deviceContext->Unmap(m_waterBuffer, 0);
+
+    // Set the position of the water constant buffer in the pixel shader.
+    bufferNumber = 0;
+
+    // Finally set the water constant buffer in the pixel shader with the updated values.
+    deviceContext->PSSetConstantBuffers(bufferNumber, 1, &m_waterBuffer);
+
+    return true;
+}
+
+void WaterShaderClass::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 triangle.
+    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/watershaderclass.h

@@ -0,0 +1,70 @@
+#ifndef _WATERSHADERCLASS_H_
+#define _WATERSHADERCLASS_H_
+
+
+//////////////
+// INCLUDES //
+//////////////
+#include <d3d11.h>
+#include <d3dcompiler.h>
+#include <directxmath.h>
+#include <fstream>
+using namespace DirectX;
+using namespace std;
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Class name: WaterShaderClass
+////////////////////////////////////////////////////////////////////////////////
+class WaterShaderClass
+{
+private:
+    struct MatrixBufferType
+    {
+        XMMATRIX world;
+        XMMATRIX view;
+        XMMATRIX projection;
+    };
+
+    struct ReflectionBufferType
+    {
+        XMMATRIX reflection;
+    };
+
+    struct WaterBufferType
+    {
+        float waterTranslation;
+        float reflectRefractScale;
+        XMFLOAT2 padding;
+    };
+
+public:
+    WaterShaderClass();
+    WaterShaderClass(const WaterShaderClass&);
+    ~WaterShaderClass();
+
+    bool Initialize(ID3D11Device*, HWND);
+    void Shutdown();
+    bool Render(ID3D11DeviceContext*, int, XMMATRIX, XMMATRIX, XMMATRIX, XMMATRIX, ID3D11ShaderResourceView*,
+        ID3D11ShaderResourceView*, ID3D11ShaderResourceView*, float, float);
+
+private:
+    bool InitializeShader(ID3D11Device*, HWND, WCHAR*, WCHAR*);
+    void ShutdownShader();
+    void OutputShaderErrorMessage(ID3D10Blob*, HWND, WCHAR*);
+
+    bool SetShaderParameters(ID3D11DeviceContext*, XMMATRIX, XMMATRIX, XMMATRIX, XMMATRIX, ID3D11ShaderResourceView*,
+        ID3D11ShaderResourceView*, ID3D11ShaderResourceView*, float, float);
+    void RenderShader(ID3D11DeviceContext*, int);
+
+private:
+    ID3D11VertexShader* m_vertexShader;
+    ID3D11PixelShader* m_pixelShader;
+    ID3D11InputLayout* m_layout;
+    ID3D11Buffer* m_matrixBuffer;
+    ID3D11SamplerState* m_sampleState;
+    ID3D11Buffer* m_reflectionBuffer;
+    ID3D11Buffer* m_waterBuffer;
+};
+
+#endif