This tutorial is part of a Collection: 03. DirectX 11 - Braynzar Soft Tutorials
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20. Cube Mapping (Skybox)
In this lesson we will learn how to use a 3D texture to texture a sphere. This technique is called cube mapping, and we will learn how to make a skybox using this technique.
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##Introduction## Cube Mapping is a technique often used to create a surrounding environment infinitely far away, such as the sky. We can create a sky box using this technique, by loading a 3D texture, then using this 3d image to texture a sphere that surrounds the camera. To keep this illusion up, the skybox must always be centered around the camera, so no matter how far in any direction we move, we will never get closer to the skybox. Another thing is the skybox is always in the back of the depth buffer, so everything drawn onto the screen will ALWAYS be in front of the skybox. We can do this by setting the z value in our view space to 1. We will learn how to create a cube texture using the directx texture tool. A cube texture is six images, two for each axis (one for +x, -x, +y, -y, +z, and -z). In the file, the image would be stored like the one below: +[http://www.braynzarsoft.net/image/100046][Skymap] To map the "cube" texture onto a sphere, its actually not too difficult. All we have to do is take the position of the current pixel we are rendering, and turn it into a vector to find which texel from the cube map we will be coloring the pixel. The below diagram shows you the idea in 2D, which we would be using (u,v) texture coordinates, but in 3D, the idea is the same, but instead of the 2D (u,v) texture coordinates, we will be using 3D (u,v,w) texture coordinates. +[http://www.braynzarsoft.net/image/100047][Getting texels from cube map] You can download this skymap from .[http://www.braynzarsoft.net/old/vision/index.php?p=VT&texture=22][Braynzar Vision] I used a program called Terragen to create these pictures. Very cool program. two things i should mention though, is first, all six of the images must be the exact same dimensions, such as 1024x1024. also if you do decide to use terragen to create cube maps, you might have a problem with "seams" between each picture, this is usually caused by "global illumination" or GI. you will need to turn both the GI settings to zero in the render window if you are having problems with seams. Alright, Now, I'll teach you how to create a 3D texture using the directx texture tool. **Step 1** - Create 6 pictures representing the different sides of a cube; East (+X), West (-X), Up (+Y), Down (-Y), North (+Z), South (-Z) using a program such as terragen. **Step 2** - Open the DirectX texture tool (usually by going to start->all programs->microsoft directx SDK->DirectX Utilities->DirectX Texture Tool) **Step 3** - Go to File-New Texture... **Step 4** - A window should pop up. under the first section, where it says texture type, mark Cubemap Texture. Change the second part to the x and y dimensions of your textures (remember all six of the images must be the same dimensions). Then you can change to format to a more compressed type if you'd like since these files can get pretty large. Hit OK. **Step 5** - Go to View->Cube Map Face-> and choose one of the faces (you will eventually choose all faces). Then go to File->Open Onto This Cubemap Face and choose the image corresponding with the current direction you chose (if you chose to view Positive X, then you will need to load the image in the East direction). Do this for all six directions. **Step 6** - After you have done that, save the file, and thats it. Now that we have all the preparation done, lets move on to the code This lesson was based of the last lesson, First person camera. However, I modified it quite a bit and i'm not going to go through ALL the modifications, so you'll need to look at the source code to see what was changed ##Global Declarations, New Include & New Function## We have a new function called CreateSphere(). This function will do what it says and create an index and vertex buffer we will use to map our sky to. This function uses Vectors, which are dynamic arrays, so we must include the vector header. Our skybox will also use a separate vertex and pixel shader from our other geometry, so we need to declare those here. Since we are loading in a texture we will pass to the shader to texture the sphere, we need to create a new shader resource view, which we call smrv for skymap resource view. You can see we have two new render states. one is a rasterizer state, which we will use to disable backface culling, since when we create our sphere some triangles are facing the opposite way as the others. And a Depth/Stencil state, we will use to make sure our sky is ALWAYS behind all other geometry in the world. We have two new integers, one for the vertices of our sphere, and the other for the faces. And last we have a new matrix which defines our spheres world space. #include <vector> ID3D11Buffer* sphereIndexBuffer; ID3D11Buffer* sphereVertBuffer; ID3D11VertexShader* SKYMAP_VS; ID3D11PixelShader* SKYMAP_PS; ID3D10Blob* SKYMAP_VS_Buffer; ID3D10Blob* SKYMAP_PS_Buffer; ID3D11ShaderResourceView* smrv; ID3D11DepthStencilState* DSLessEqual; ID3D11RasterizerState* RSCullNone; int NumSphereVertices; int NumSphereFaces; XMMATRIX sphereWorld; void CreateSphere(int LatLines, int LongLines); ##Clean Up## Remember! void CleanUp() { SwapChain->SetFullscreenState(false, NULL); PostMessage(hwnd, WM_DESTROY, 0, 0); //Release the COM Objects we created SwapChain->Release(); d3d11Device->Release(); d3d11DevCon->Release(); renderTargetView->Release(); squareVertBuffer->Release(); squareIndexBuffer->Release(); VS->Release(); PS->Release(); VS_Buffer->Release(); PS_Buffer->Release(); vertLayout->Release(); depthStencilView->Release(); depthStencilBuffer->Release(); cbPerObjectBuffer->Release(); Transparency->Release(); CCWcullMode->Release(); CWcullMode->Release(); d3d101Device->Release(); keyedMutex11->Release(); keyedMutex10->Release(); D2DRenderTarget->Release(); Brush->Release(); BackBuffer11->Release(); sharedTex11->Release(); DWriteFactory->Release(); TextFormat->Release(); d2dTexture->Release(); cbPerFrameBuffer->Release(); DIKeyboard->Unacquire(); DIMouse->Unacquire(); DirectInput->Release(); ///////////////**************new**************//////////////////// sphereIndexBuffer->Release(); sphereVertBuffer->Release(); SKYMAP_VS->Release(); SKYMAP_PS->Release(); SKYMAP_VS_Buffer->Release(); SKYMAP_PS_Buffer->Release(); smrv->Release(); DSLessEqual->Release(); RSCullNone->Release(); ///////////////**************new**************//////////////////// } ##The Sky Geometry!## This is the function we will call to create a sphere, which we will map our sky to. Since you could just map the sky onto a cube, I'm not going to explain this function, you can look through it if you'd like though, But this certain function is not exactly NEEDED to map a sky. void CreateSphere(int LatLines, int LongLines) { NumSphereVertices = ((LatLines-2) * LongLines) + 2; NumSphereFaces = ((LatLines-3)*(LongLines)*2) + (LongLines*2); float sphereYaw = 0.0f; float spherePitch = 0.0f; std::vector<Vertex> vertices(NumSphereVertices); XMVECTOR currVertPos = XMVectorSet(0.0f, 0.0f, 1.0f, 0.0f); vertices[0].pos.x = 0.0f; vertices[0].pos.y = 0.0f; vertices[0].pos.z = 1.0f; for(DWORD i = 0; i < LatLines-2; ++i) { spherePitch = (i+1) * (3.14/(LatLines-1)); Rotationx = XMMatrixRotationX(spherePitch); for(DWORD j = 0; j < LongLines; ++j) { sphereYaw = j * (6.28/(LongLines)); Rotationy = XMMatrixRotationZ(sphereYaw); currVertPos = XMVector3TransformNormal( XMVectorSet(0.0f, 0.0f, 1.0f, 0.0f), (Rotationx * Rotationy) ); currVertPos = XMVector3Normalize( currVertPos ); vertices[i*LongLines+j+1].pos.x = XMVectorGetX(currVertPos); vertices[i*LongLines+j+1].pos.y = XMVectorGetY(currVertPos); vertices[i*LongLines+j+1].pos.z = XMVectorGetZ(currVertPos); } } vertices[NumSphereVertices-1].pos.x = 0.0f; vertices[NumSphereVertices-1].pos.y = 0.0f; vertices[NumSphereVertices-1].pos.z = -1.0f; D3D11_BUFFER_DESC vertexBufferDesc; ZeroMemory( &vertexBufferDesc, sizeof(vertexBufferDesc) ); vertexBufferDesc.Usage = D3D11_USAGE_DEFAULT; vertexBufferDesc.ByteWidth = sizeof( Vertex ) * NumSphereVertices; vertexBufferDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER; vertexBufferDesc.CPUAccessFlags = 0; vertexBufferDesc.MiscFlags = 0; D3D11_SUBRESOURCE_DATA vertexBufferData; ZeroMemory( &vertexBufferData, sizeof(vertexBufferData) ); vertexBufferData.pSysMem = &vertices[0]; hr = d3d11Device->CreateBuffer( &vertexBufferDesc, &vertexBufferData, &sphereVertBuffer); std::vector<DWORD> indices(NumSphereFaces * 3); int k = 0; for(DWORD l = 0; l < LongLines-1; ++l) { indices[k] = 0; indices[k+1] = l+1; indices[k+2] = l+2; k += 3; } indices[k] = 0; indices[k+1] = LongLines; indices[k+2] = 1; k += 3; for(DWORD i = 0; i < LatLines-3; ++i) { for(DWORD j = 0; j < LongLines-1; ++j) { indices[k] = i*LongLines+j+1; indices[k+1] = i*LongLines+j+2; indices[k+2] = (i+1)*LongLines+j+1; indices[k+3] = (i+1)*LongLines+j+1; indices[k+4] = i*LongLines+j+2; indices[k+5] = (i+1)*LongLines+j+2; k += 6; // next quad } indices[k] = (i*LongLines)+LongLines; indices[k+1] = (i*LongLines)+1; indices[k+2] = ((i+1)*LongLines)+LongLines; indices[k+3] = ((i+1)*LongLines)+LongLines; indices[k+4] = (i*LongLines)+1; indices[k+5] = ((i+1)*LongLines)+1; k += 6; } for(DWORD l = 0; l < LongLines-1; ++l) { indices[k] = NumSphereVertices-1; indices[k+1] = (NumSphereVertices-1)-(l+1); indices[k+2] = (NumSphereVertices-1)-(l+2); k += 3; } indices[k] = NumSphereVertices-1; indices[k+1] = (NumSphereVertices-1)-LongLines; indices[k+2] = NumSphereVertices-2; D3D11_BUFFER_DESC indexBufferDesc; ZeroMemory( &indexBufferDesc, sizeof(indexBufferDesc) ); indexBufferDesc.Usage = D3D11_USAGE_DEFAULT; indexBufferDesc.ByteWidth = sizeof(DWORD) * NumSphereFaces * 3; indexBufferDesc.BindFlags = D3D11_BIND_INDEX_BUFFER; indexBufferDesc.CPUAccessFlags = 0; indexBufferDesc.MiscFlags = 0; D3D11_SUBRESOURCE_DATA iinitData; iinitData.pSysMem = &indices[0]; d3d11Device->CreateBuffer(&indexBufferDesc, &iinitData, &sphereIndexBuffer); } ##Call the Create Sphere Function## Here we will call the function to create our sphere. We will give it 10 latitude lines, and 10 longitude lines. By the way, when the sphere is created, its actually created on its side, so the "south" and "north" poles are parallel to the ground. CreateSphere(10, 10); ##The Skymap's VS and PS## Next we need to create our new shaders. hr = D3DX11CompileFromFile(L"Effects.fx", 0, 0, "SKYMAP_VS", "vs_4_0", 0, 0, 0, &SKYMAP_VS_Buffer, 0, 0); hr = D3DX11CompileFromFile(L"Effects.fx", 0, 0, "SKYMAP_PS", "ps_4_0", 0, 0, 0, &SKYMAP_PS_Buffer, 0, 0); hr = d3d11Device->CreateVertexShader(SKYMAP_VS_Buffer->GetBufferPointer(), SKYMAP_VS_Buffer->GetBufferSize(), NULL, &SKYMAP_VS); hr = d3d11Device->CreatePixelShader(SKYMAP_PS_Buffer->GetBufferPointer(), SKYMAP_PS_Buffer->GetBufferSize(), NULL, &SKYMAP_PS); ##Loading the Cube Map## A Cube Map is actually an array of six 2D textures, two for each axis (x, -x, y, -y, z, -z). The first thing we do when loading a cube map is tell D3D we will be loading a texture cube, by creating a D3DX11_IMAGE_LOAD_INFO structure and setting its MiscFlags member with D3D11_RESOURCE_MISC_TEXTURECUBE. Then we will create a 2D texture from the file. This 2D texture will actually be an array now since we said we are loading a texture cube. Next we get the description of our texture so we can create a resource view description that matches the texture we loaded in. Now we will create the shader resource view description. We will say that this resource view is a texture cube, or an array of 2D textures, so when the pixel shader is texturing a pixel, it will know how to use the 3D coordinates we give it, which are used to find the texel on the texture cube. Remember a 2D texture uses (u, v) coordinates, well a 3D texture uses (u, v, w) coordinates. And finally we create the resource view using the texture we loaded in from a file, the shader resource views description, and storing the shader resource view in smrv. D3DX11_IMAGE_LOAD_INFO loadSMInfo; loadSMInfo.MiscFlags = D3D11_RESOURCE_MISC_TEXTURECUBE; ID3D11Texture2D* SMTexture = 0; hr = D3DX11CreateTextureFromFile(d3d11Device, L"skymap.dds", &loadSMInfo, 0, (ID3D11Resource**)&SMTexture, 0); D3D11_TEXTURE2D_DESC SMTextureDesc; SMTexture->GetDesc(&SMTextureDesc); D3D11_SHADER_RESOURCE_VIEW_DESC SMViewDesc; SMViewDesc.Format = SMTextureDesc.Format; SMViewDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURECUBE; SMViewDesc.TextureCube.MipLevels = SMTextureDesc.MipLevels; SMViewDesc.TextureCube.MostDetailedMip = 0; hr = d3d11Device->CreateShaderResourceView(SMTexture, &SMViewDesc, &smrv); ##The Skymap's Render States## At the bottom of our InitScene() function, we create two new render states. One Rasterizer state, and one depth/stencil state. The rasterizer state will be used to disable culling, so that both the back and front sides of our skybox's geometry will be rendered. We do this because when we created our sphere, half of the sides are backwards, and the other half are forwards. Now let's look at the depth/stencil state. We create a depth/stencil state by filling out a D3D11_DEPTH_STENCIL_DESC structure, calling ID3D11Device::CreateDepthStencilState(), and storing the state in an ID3D11DepthStencilState object. In our skybox's VS, we will be setting its z value to 1.0f (which we will do by setting z to w, since w is 1.0f). We do this so that it will always be the furthest possible from the camera, to make it look like it is infinitely far away, since all objects in your scene will be under the sky (usually). Just setting the z value to 1.0f in the vertex shader is not enough though, as some other object in your scene that are very far away might also end up with a z value of 1.0f. Because of this, we need to make sure that any other objects with the same z value or less (closer to the screen) are drawn, and not the pixels from the skybox. We can do this by setting the DepthFunc member to D3D11_COMPARISON_LESS_EQUAL. cmdesc.CullMode = D3D11_CULL_NONE; hr = d3d11Device->CreateRasterizerState(&cmdesc, &RSCullNone); D3D11_DEPTH_STENCIL_DESC dssDesc; ZeroMemory(&dssDesc, sizeof(D3D11_DEPTH_STENCIL_DESC)); dssDesc.DepthEnable = true; dssDesc.DepthWriteMask = D3D11_DEPTH_WRITE_MASK_ALL; dssDesc.DepthFunc = D3D11_COMPARISON_LESS_EQUAL; d3d11Device->CreateDepthStencilState(&dssDesc, &DSLessEqual); ##Keeping the Skybox Infinitely Far Away## To keep up the skybox illusion, we need to make sure that no matter how far in any direction the camera moves, we will never get any closer to the skybox, or else the illusion will not work. We will do this by making sure the skybox sphere is centered around the camera every frame. Another thing is it doesn't actualy matter what the size of the skybox is. You can try changing the size of the skybox, but it will always appear the same no matter how big or small it is. To give the sky a slightly "flatter" look, you might want to keep the y value slightly less than the x and z values when scaling the sphere, so its kind of like a "squashed" sphere. void UpdateScene(double time) { //Reset cube1World groundWorld = XMMatrixIdentity(); //Define cube1's world space matrix Scale = XMMatrixScaling( 500.0f, 10.0f, 500.0f ); Translation = XMMatrixTranslation( 0.0f, 10.0f, 0.0f ); //Set cube1's world space using the transformations groundWorld = Scale * Translation; ///////////////**************new**************//////////////////// //Reset sphereWorld sphereWorld = XMMatrixIdentity(); //Define sphereWorld's world space matrix Scale = XMMatrixScaling( 5.0f, 5.0f, 5.0f ); //Make sure the sphere is always centered around camera Translation = XMMatrixTranslation( XMVectorGetX(camPosition), XMVectorGetY(camPosition), XMVectorGetZ(camPosition) ); //Set sphereWorld's world space using the transformations sphereWorld = Scale * Translation; ///////////////**************new**************//////////////////// } ##Drawing the Sky## The last thing we need to do (besides the effect file), is draw the sphere our sky will be mapped to. First we set the spheres index and vertex buffer. Then we set its shader variables, WVP and World matrices, texture, and sampler. After that we set its VS, PS, Depth/Stencil State and Rasterizer state. Then we draw the sphere. After, we need to make sure we set the states back to default in case other geometry drawn after this one do not explicitly set the default states and shaders. d3d11DevCon->IASetIndexBuffer( sphereIndexBuffer, DXGI_FORMAT_R32_UINT, 0); d3d11DevCon->IASetVertexBuffers( 0, 1, &sphereVertBuffer, &stride, &offset ); WVP = sphereWorld * camView * camProjection; cbPerObj.WVP = XMMatrixTranspose(WVP); cbPerObj.World = XMMatrixTranspose(sphereWorld); d3d11DevCon->UpdateSubresource( cbPerObjectBuffer, 0, NULL, &cbPerObj, 0, 0 ); d3d11DevCon->VSSetConstantBuffers( 0, 1, &cbPerObjectBuffer ); d3d11DevCon->PSSetShaderResources( 0, 1, &smrv ); d3d11DevCon->PSSetSamplers( 0, 1, &CubesTexSamplerState ); d3d11DevCon->VSSetShader(SKYMAP_VS, 0, 0); d3d11DevCon->PSSetShader(SKYMAP_PS, 0, 0); d3d11DevCon->OMSetDepthStencilState(DSLessEqual, 0); d3d11DevCon->RSSetState(RSCullNone); d3d11DevCon->DrawIndexed( NumSphereFaces * 3, 0, 0 ); d3d11DevCon->VSSetShader(VS, 0, 0); d3d11DevCon->OMSetDepthStencilState(NULL, 0); ##The Effect File## The first thing thats new in our effect file is a variable called SkyMap, which is a TextureCube resource. TextureCube is like the Texture2D, but instead of one texture, it holds an array of 6 texture2D's, two for each axis. ##TextureCube SkyMap;## We also have a new structure. This structure is used to send the information we need from the skymaps VS to the skymaps PS. We will only be needing the position and texture coordinates in our PS. struct SKYMAP_VS_OUTPUT //output structure for skymap vertex shader { float4 Pos : SV_POSITION; float3 texCoord : TEXCOORD; }; Here is our skymaps VS. As you can see, we are taking in normal values for each vertex still, this is because we are going to be using the same input layout for all our geometry (so we don't have to do more code). However, we will not be using the normals. And in fact, we did not define texture coordinates for our vertices either. This is because the texture coordinates will be defined by our vertices position. We can use our vertices position as a vector, describing the texel in our texturecube to color the pixel with. You can see how we do that with the line output.texCoord = inPos;. Also, notice when we are defining the output position, we take the values .xyww instead of .xyzw. This is because w is equal to 1.0f. We want to make sure our skymap is always the furthest object in our scene, so we want to set our z value to 1.0f too, which is what w is. Remember, 1.0f is the furthest value from the screen. SKYMAP_VS_OUTPUT SKYMAP_VS(float3 inPos : POSITION, float2 inTexCoord : TEXCOORD, float3 normal : NORMAL) { SKYMAP_VS_OUTPUT output = (SKYMAP_VS_OUTPUT)0; //Set Pos to xyww instead of xyzw, so that z will always be 1 (furthest from camera) output.Pos = mul(float4(inPos, 1.0f), WVP).xyww; output.texCoord = inPos; return output; } The only thing thats left to do now is create our skymaps PS. This is very easy. All we have to do is sample the texturecube using the 3D texture coordinate passed in from the VS, and return the color value of that texel! float4 SKYMAP_PS(SKYMAP_VS_OUTPUT input) : SV_Target { return SkyMap.Sample(ObjSamplerState, input.texCoord); } Pretty simple actually, be sure to let me know if you have any problems or comments! ##Exercise:## 1. Make a sphere in the center of your scene which reflects the skymap surrounding the scene. HINT ... To do this, you will need to send the cameras position to the skymaps VS stage. Take the position of the camera, and the position of the vertex, and create a unit length vector describing the direction from the pixel to the camera. After that you will set the texture coordinate of that vertex to the reflection of that vector. To create a reflection vector, you will also need the normal of the vertex. If you are doing a simple sphere or square, the normal could just be the vertices position, if the cube or sphere was centered around (0.0f, 0.0f, 0.0f). Here's the final code main.cpp: //Include and link appropriate libraries and headers// #pragma comment(lib, "d3d11.lib") #pragma comment(lib, "d3dx11.lib") #pragma comment(lib, "d3dx10.lib") #pragma comment (lib, "D3D10_1.lib") #pragma comment (lib, "DXGI.lib") #pragma comment (lib, "D2D1.lib") #pragma comment (lib, "dwrite.lib") #pragma comment (lib, "dinput8.lib") #pragma comment (lib, "dxguid.lib") #include <windows.h> #include <d3d11.h> #include <d3dx11.h> #include <d3dx10.h> #include <xnamath.h> #include <D3D10_1.h> #include <DXGI.h> #include <D2D1.h> #include <sstream> #include <dwrite.h> #include <dinput.h> ///////////////**************new**************//////////////////// #include <vector> ///////////////**************new**************//////////////////// //Global Declarations - Interfaces// IDXGISwapChain* SwapChain; ID3D11Device* d3d11Device; ID3D11DeviceContext* d3d11DevCon; ID3D11RenderTargetView* renderTargetView; ID3D11Buffer* squareIndexBuffer; ID3D11DepthStencilView* depthStencilView; ID3D11Texture2D* depthStencilBuffer; ID3D11Buffer* squareVertBuffer; ID3D11VertexShader* VS; ID3D11PixelShader* PS; ID3D11PixelShader* D2D_PS; ID3D10Blob* D2D_PS_Buffer; ID3D10Blob* VS_Buffer; ID3D10Blob* PS_Buffer; ID3D11InputLayout* vertLayout; ID3D11Buffer* cbPerObjectBuffer; ID3D11BlendState* Transparency; ID3D11RasterizerState* CCWcullMode; ID3D11RasterizerState* CWcullMode; ID3D11ShaderResourceView* CubesTexture; ID3D11SamplerState* CubesTexSamplerState; ID3D11Buffer* cbPerFrameBuffer; ID3D10Device1 *d3d101Device; IDXGIKeyedMutex *keyedMutex11; IDXGIKeyedMutex *keyedMutex10; ID2D1RenderTarget *D2DRenderTarget; ID2D1SolidColorBrush *Brush; ID3D11Texture2D *BackBuffer11; ID3D11Texture2D *sharedTex11; ID3D11Buffer *d2dVertBuffer; ID3D11Buffer *d2dIndexBuffer; ID3D11ShaderResourceView *d2dTexture; IDWriteFactory *DWriteFactory; IDWriteTextFormat *TextFormat; IDirectInputDevice8* DIKeyboard; IDirectInputDevice8* DIMouse; ///////////////**************new**************//////////////////// ID3D11Buffer* sphereIndexBuffer; ID3D11Buffer* sphereVertBuffer; ID3D11VertexShader* SKYMAP_VS; ID3D11PixelShader* SKYMAP_PS; ID3D10Blob* SKYMAP_VS_Buffer; ID3D10Blob* SKYMAP_PS_Buffer; ID3D11ShaderResourceView* smrv; ID3D11DepthStencilState* DSLessEqual; ID3D11RasterizerState* RSCullNone; ///////////////**************new**************//////////////////// std::wstring printText; //Global Declarations - Others// LPCTSTR WndClassName = L"firstwindow"; HWND hwnd = NULL; HRESULT hr; int Width = 800; int Height = 600; DIMOUSESTATE mouseLastState; LPDIRECTINPUT8 DirectInput; float rotx = 0; float rotz = 0; float scaleX = 1.0f; float scaleY = 1.0f; XMMATRIX Rotationx; XMMATRIX Rotationy; XMMATRIX Rotationz; XMMATRIX WVP; XMMATRIX cube1World; XMMATRIX cube2World; XMMATRIX camView; XMMATRIX camProjection; XMMATRIX d2dWorld; XMVECTOR camPosition; XMVECTOR camTarget; XMVECTOR camUp; XMVECTOR DefaultForward = XMVectorSet(0.0f,0.0f,1.0f, 0.0f); XMVECTOR DefaultRight = XMVectorSet(1.0f,0.0f,0.0f, 0.0f); XMVECTOR camForward = XMVectorSet(0.0f,0.0f,1.0f, 0.0f); XMVECTOR camRight = XMVectorSet(1.0f,0.0f,0.0f, 0.0f); XMMATRIX camRotationMatrix; XMMATRIX groundWorld; float moveLeftRight = 0.0f; float moveBackForward = 0.0f; float camYaw = 0.0f; float camPitch = 0.0f; ///////////////**************new**************//////////////////// int NumSphereVertices; int NumSphereFaces; XMMATRIX sphereWorld; ///////////////**************new**************//////////////////// XMMATRIX Rotation; XMMATRIX Scale; XMMATRIX Translation; float rot = 0.01f; double countsPerSecond = 0.0; __int64 CounterStart = 0; int frameCount = 0; int fps = 0; __int64 frameTimeOld = 0; double frameTime; //Function Prototypes// bool InitializeDirect3d11App(HINSTANCE hInstance); void CleanUp(); bool InitScene(); void DrawScene(); bool InitD2D_D3D101_DWrite(IDXGIAdapter1 *Adapter); void InitD2DScreenTexture(); void UpdateScene(double time); void UpdateCamera(); ///////////////**************new**************//////////////////// void CreateSphere(int LatLines, int LongLines); ///////////////**************new**************//////////////////// void RenderText(std::wstring text, int inInt); void StartTimer(); double GetTime(); double GetFrameTime(); bool InitializeWindow(HINSTANCE hInstance, int ShowWnd, int width, int height, bool windowed); int messageloop(); bool InitDirectInput(HINSTANCE hInstance); void DetectInput(double time); LRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam); //Create effects constant buffer's structure// struct cbPerObject { XMMATRIX WVP; XMMATRIX World; }; cbPerObject cbPerObj; struct Light { Light() { ZeroMemory(this, sizeof(Light)); } XMFLOAT3 dir; float pad; XMFLOAT4 ambient; XMFLOAT4 diffuse; }; Light light; struct cbPerFrame { Light light; }; cbPerFrame constbuffPerFrame; struct Vertex //Overloaded Vertex Structure { Vertex(){} Vertex(float x, float y, float z, float u, float v, float nx, float ny, float nz) : pos(x,y,z), texCoord(u, v), normal(nx, ny, nz){} XMFLOAT3 pos; XMFLOAT2 texCoord; XMFLOAT3 normal; }; D3D11_INPUT_ELEMENT_DESC layout[] = { { "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 }, { "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 12, D3D11_INPUT_PER_VERTEX_DATA, 0 }, { "NORMAL", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 20, D3D11_INPUT_PER_VERTEX_DATA, 0} }; UINT numElements = ARRAYSIZE(layout); int WINAPI WinMain(HINSTANCE hInstance, //Main windows function HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd) { if(!InitializeWindow(hInstance, nShowCmd, Width, Height, true)) { MessageBox(0, L"Window Initialization - Failed", L"Error", MB_OK); return 0; } if(!InitializeDirect3d11App(hInstance)) //Initialize Direct3D { MessageBox(0, L"Direct3D Initialization - Failed", L"Error", MB_OK); return 0; } if(!InitScene()) //Initialize our scene { MessageBox(0, L"Scene Initialization - Failed", L"Error", MB_OK); return 0; } if(!InitDirectInput(hInstance)) { MessageBox(0, L"Direct Input Initialization - Failed", L"Error", MB_OK); return 0; } messageloop(); CleanUp(); return 0; } bool InitializeWindow(HINSTANCE hInstance, int ShowWnd, int width, int height, bool windowed) { typedef struct _WNDCLASS { UINT cbSize; UINT style; WNDPROC lpfnWndProc; int cbClsExtra; int cbWndExtra; HANDLE hInstance; HICON hIcon; HCURSOR hCursor; HBRUSH hbrBackground; LPCTSTR lpszMenuName; LPCTSTR lpszClassName; } WNDCLASS; WNDCLASSEX wc; wc.cbSize = sizeof(WNDCLASSEX); wc.style = CS_HREDRAW | CS_VREDRAW; wc.lpfnWndProc = WndProc; wc.cbClsExtra = NULL; wc.cbWndExtra = NULL; wc.hInstance = hInstance; wc.hIcon = LoadIcon(NULL, IDI_APPLICATION); wc.hCursor = LoadCursor(NULL, IDC_ARROW); wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1); wc.lpszMenuName = NULL; wc.lpszClassName = WndClassName; wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION); if (!RegisterClassEx(&wc)) { MessageBox(NULL, L"Error registering class", L"Error", MB_OK | MB_ICONERROR); return 1; } hwnd = CreateWindowEx( NULL, WndClassName, L"Lesson 4 - Begin Drawing", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, width, height, NULL, NULL, hInstance, NULL ); if (!hwnd) { MessageBox(NULL, L"Error creating window", L"Error", MB_OK | MB_ICONERROR); return 1; } ShowWindow(hwnd, ShowWnd); UpdateWindow(hwnd); return true; } bool InitializeDirect3d11App(HINSTANCE hInstance) { //Describe our SwapChain Buffer DXGI_MODE_DESC bufferDesc; ZeroMemory(&bufferDesc, sizeof(DXGI_MODE_DESC)); bufferDesc.Width = Width; bufferDesc.Height = Height; bufferDesc.RefreshRate.Numerator = 60; bufferDesc.RefreshRate.Denominator = 1; bufferDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM; bufferDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED; bufferDesc.Scaling = DXGI_MODE_SCALING_UNSPECIFIED; //Describe our SwapChain DXGI_SWAP_CHAIN_DESC swapChainDesc; ZeroMemory(&swapChainDesc, sizeof(DXGI_SWAP_CHAIN_DESC)); swapChainDesc.BufferDesc = bufferDesc; swapChainDesc.SampleDesc.Count = 1; swapChainDesc.SampleDesc.Quality = 0; swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT; swapChainDesc.BufferCount = 1; swapChainDesc.OutputWindow = hwnd; swapChainDesc.Windowed = false; swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD; // Create DXGI factory to enumerate adapters/////////////////////////////////////////////////////////////////////////// IDXGIFactory1 *DXGIFactory; HRESULT hr = CreateDXGIFactory1(__uuidof(IDXGIFactory1), (void**)&DXGIFactory); // Use the first adapter IDXGIAdapter1 *Adapter; hr = DXGIFactory->EnumAdapters1(0, &Adapter); DXGIFactory->Release(); //Create our Direct3D 11 Device and SwapChain////////////////////////////////////////////////////////////////////////// hr = D3D11CreateDeviceAndSwapChain(Adapter, D3D_DRIVER_TYPE_UNKNOWN, NULL, D3D11_CREATE_DEVICE_BGRA_SUPPORT, NULL, NULL, D3D11_SDK_VERSION, &swapChainDesc, &SwapChain, &d3d11Device, NULL, &d3d11DevCon); //Initialize Direct2D, Direct3D 10.1, DirectWrite InitD2D_D3D101_DWrite(Adapter); //Release the Adapter interface Adapter->Release(); //Create our BackBuffer and Render Target hr = SwapChain->GetBuffer( 0, __uuidof( ID3D11Texture2D ), (void**)&BackBuffer11 ); hr = d3d11Device->CreateRenderTargetView( BackBuffer11, NULL, &renderTargetView ); //Describe our Depth/Stencil Buffer D3D11_TEXTURE2D_DESC depthStencilDesc; depthStencilDesc.Width = Width; depthStencilDesc.Height = Height; depthStencilDesc.MipLevels = 1; depthStencilDesc.ArraySize = 1; depthStencilDesc.Format = DXGI_FORMAT_D24_UNORM_S8_UINT; depthStencilDesc.SampleDesc.Count = 1; depthStencilDesc.SampleDesc.Quality = 0; depthStencilDesc.Usage = D3D11_USAGE_DEFAULT; depthStencilDesc.BindFlags = D3D11_BIND_DEPTH_STENCIL; depthStencilDesc.CPUAccessFlags = 0; depthStencilDesc.MiscFlags = 0; //Create the Depth/Stencil View d3d11Device->CreateTexture2D(&depthStencilDesc, NULL, &depthStencilBuffer); d3d11Device->CreateDepthStencilView(depthStencilBuffer, NULL, &depthStencilView); return true; } bool InitD2D_D3D101_DWrite(IDXGIAdapter1 *Adapter) { //Create our Direc3D 10.1 Device/////////////////////////////////////////////////////////////////////////////////////// hr = D3D10CreateDevice1(Adapter, D3D10_DRIVER_TYPE_HARDWARE, NULL,D3D10_CREATE_DEVICE_BGRA_SUPPORT, D3D10_FEATURE_LEVEL_9_3, D3D10_1_SDK_VERSION, &d3d101Device ); //Create Shared Texture that Direct3D 10.1 will render on////////////////////////////////////////////////////////////// D3D11_TEXTURE2D_DESC sharedTexDesc; ZeroMemory(&sharedTexDesc, sizeof(sharedTexDesc)); sharedTexDesc.Width = Width; sharedTexDesc.Height = Height; sharedTexDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM; sharedTexDesc.MipLevels = 1; sharedTexDesc.ArraySize = 1; sharedTexDesc.SampleDesc.Count = 1; sharedTexDesc.Usage = D3D11_USAGE_DEFAULT; sharedTexDesc.BindFlags = D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET; sharedTexDesc.MiscFlags = D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX; hr = d3d11Device->CreateTexture2D(&sharedTexDesc, NULL, &sharedTex11); // Get the keyed mutex for the shared texture (for D3D11)/////////////////////////////////////////////////////////////// hr = sharedTex11->QueryInterface(__uuidof(IDXGIKeyedMutex), (void**)&keyedMutex11); // Get the shared handle needed to open the shared texture in D3D10.1/////////////////////////////////////////////////// IDXGIResource *sharedResource10; HANDLE sharedHandle10; hr = sharedTex11->QueryInterface(__uuidof(IDXGIResource), (void**)&sharedResource10); hr = sharedResource10->GetSharedHandle(&sharedHandle10); sharedResource10->Release(); // Open the surface for the shared texture in D3D10.1/////////////////////////////////////////////////////////////////// IDXGISurface1 *sharedSurface10; hr = d3d101Device->OpenSharedResource(sharedHandle10, __uuidof(IDXGISurface1), (void**)(&sharedSurface10)); hr = sharedSurface10->QueryInterface(__uuidof(IDXGIKeyedMutex), (void**)&keyedMutex10); // Create D2D factory/////////////////////////////////////////////////////////////////////////////////////////////////// ID2D1Factory *D2DFactory; hr = D2D1CreateFactory(D2D1_FACTORY_TYPE_SINGLE_THREADED, __uuidof(ID2D1Factory), (void**)&D2DFactory); D2D1_RENDER_TARGET_PROPERTIES renderTargetProperties; ZeroMemory(&renderTargetProperties, sizeof(renderTargetProperties)); renderTargetProperties.type = D2D1_RENDER_TARGET_TYPE_HARDWARE; renderTargetProperties.pixelFormat = D2D1::PixelFormat(DXGI_FORMAT_UNKNOWN, D2D1_ALPHA_MODE_PREMULTIPLIED); hr = D2DFactory->CreateDxgiSurfaceRenderTarget(sharedSurface10, &renderTargetProperties, &D2DRenderTarget); sharedSurface10->Release(); D2DFactory->Release(); // Create a solid color brush to draw something with hr = D2DRenderTarget->CreateSolidColorBrush(D2D1::ColorF(1.0f, 1.0f, 1.0f, 1.0f), &Brush); //DirectWrite/////////////////////////////////////////////////////////////////////////////////////////////////////////// hr = DWriteCreateFactory(DWRITE_FACTORY_TYPE_SHARED, __uuidof(IDWriteFactory), reinterpret_cast<IUnknown**>(&DWriteFactory)); hr = DWriteFactory->CreateTextFormat( L"Script", NULL, DWRITE_FONT_WEIGHT_REGULAR, DWRITE_FONT_STYLE_NORMAL, DWRITE_FONT_STRETCH_NORMAL, 24.0f, L"en-us", &TextFormat ); hr = TextFormat->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_LEADING); hr = TextFormat->SetParagraphAlignment(DWRITE_PARAGRAPH_ALIGNMENT_NEAR); d3d101Device->IASetPrimitiveTopology(D3D10_PRIMITIVE_TOPOLOGY_POINTLIST); return true; } bool InitDirectInput(HINSTANCE hInstance) { hr = DirectInput8Create(hInstance, DIRECTINPUT_VERSION, IID_IDirectInput8, (void**)&DirectInput, NULL); hr = DirectInput->CreateDevice(GUID_SysKeyboard, &DIKeyboard, NULL); hr = DirectInput->CreateDevice(GUID_SysMouse, &DIMouse, NULL); hr = DIKeyboard->SetDataFormat(&c_dfDIKeyboard); hr = DIKeyboard->SetCooperativeLevel(hwnd, DISCL_FOREGROUND | DISCL_NONEXCLUSIVE); hr = DIMouse->SetDataFormat(&c_dfDIMouse); hr = DIMouse->SetCooperativeLevel(hwnd, DISCL_EXCLUSIVE | DISCL_NOWINKEY | DISCL_FOREGROUND); return true; } void UpdateCamera() { camRotationMatrix = XMMatrixRotationRollPitchYaw(camPitch, camYaw, 0); camTarget = XMVector3TransformCoord(DefaultForward, camRotationMatrix ); camTarget = XMVector3Normalize(camTarget); XMMATRIX RotateYTempMatrix; RotateYTempMatrix = XMMatrixRotationY(camYaw); camRight = XMVector3TransformCoord(DefaultRight, RotateYTempMatrix); camUp = XMVector3TransformCoord(camUp, RotateYTempMatrix); camForward = XMVector3TransformCoord(DefaultForward, RotateYTempMatrix); camPosition += moveLeftRight*camRight; camPosition += moveBackForward*camForward; moveLeftRight = 0.0f; moveBackForward = 0.0f; camTarget = camPosition + camTarget; camView = XMMatrixLookAtLH( camPosition, camTarget, camUp ); } void DetectInput(double time) { DIMOUSESTATE mouseCurrState; BYTE keyboardState[256]; DIKeyboard->Acquire(); DIMouse->Acquire(); DIMouse->GetDeviceState(sizeof(DIMOUSESTATE), &mouseCurrState); DIKeyboard->GetDeviceState(sizeof(keyboardState),(LPVOID)&keyboardState); if(keyboardState[DIK_ESCAPE] & 0x80) PostMessage(hwnd, WM_DESTROY, 0, 0); float speed = 15.0f * time; if(keyboardState[DIK_A] & 0x80) { moveLeftRight -= speed; } if(keyboardState[DIK_D] & 0x80) { moveLeftRight += speed; } if(keyboardState[DIK_W] & 0x80) { moveBackForward += speed; } if(keyboardState[DIK_S] & 0x80) { moveBackForward -= speed; } if((mouseCurrState.lX != mouseLastState.lX) || (mouseCurrState.lY != mouseLastState.lY)) { camYaw += mouseLastState.lX * 0.001f; camPitch += mouseCurrState.lY * 0.001f; mouseLastState = mouseCurrState; } UpdateCamera(); return; } void CleanUp() { SwapChain->SetFullscreenState(false, NULL); PostMessage(hwnd, WM_DESTROY, 0, 0); //Release the COM Objects we created SwapChain->Release(); d3d11Device->Release(); d3d11DevCon->Release(); renderTargetView->Release(); squareVertBuffer->Release(); squareIndexBuffer->Release(); VS->Release(); PS->Release(); VS_Buffer->Release(); PS_Buffer->Release(); vertLayout->Release(); depthStencilView->Release(); depthStencilBuffer->Release(); cbPerObjectBuffer->Release(); Transparency->Release(); CCWcullMode->Release(); CWcullMode->Release(); d3d101Device->Release(); keyedMutex11->Release(); keyedMutex10->Release(); D2DRenderTarget->Release(); Brush->Release(); BackBuffer11->Release(); sharedTex11->Release(); DWriteFactory->Release(); TextFormat->Release(); d2dTexture->Release(); cbPerFrameBuffer->Release(); DIKeyboard->Unacquire(); DIMouse->Unacquire(); DirectInput->Release(); ///////////////**************new**************//////////////////// sphereIndexBuffer->Release(); sphereVertBuffer->Release(); SKYMAP_VS->Release(); SKYMAP_PS->Release(); SKYMAP_VS_Buffer->Release(); SKYMAP_PS_Buffer->Release(); smrv->Release(); DSLessEqual->Release(); RSCullNone->Release(); ///////////////**************new**************//////////////////// } ///////////////**************new**************//////////////////// void CreateSphere(int LatLines, int LongLines) { NumSphereVertices = ((LatLines-2) * LongLines) + 2; NumSphereFaces = ((LatLines-3)*(LongLines)*2) + (LongLines*2); float sphereYaw = 0.0f; float spherePitch = 0.0f; std::vector<Vertex> vertices(NumSphereVertices); XMVECTOR currVertPos = XMVectorSet(0.0f, 0.0f, 1.0f, 0.0f); vertices[0].pos.x = 0.0f; vertices[0].pos.y = 0.0f; vertices[0].pos.z = 1.0f; for(DWORD i = 0; i < LatLines-2; ++i) { spherePitch = (i+1) * (3.14/(LatLines-1)); Rotationx = XMMatrixRotationX(spherePitch); for(DWORD j = 0; j < LongLines; ++j) { sphereYaw = j * (6.28/(LongLines)); Rotationy = XMMatrixRotationZ(sphereYaw); currVertPos = XMVector3TransformNormal( XMVectorSet(0.0f, 0.0f, 1.0f, 0.0f), (Rotationx * Rotationy) ); currVertPos = XMVector3Normalize( currVertPos ); vertices[i*LongLines+j+1].pos.x = XMVectorGetX(currVertPos); vertices[i*LongLines+j+1].pos.y = XMVectorGetY(currVertPos); vertices[i*LongLines+j+1].pos.z = XMVectorGetZ(currVertPos); } } vertices[NumSphereVertices-1].pos.x = 0.0f; vertices[NumSphereVertices-1].pos.y = 0.0f; vertices[NumSphereVertices-1].pos.z = -1.0f; D3D11_BUFFER_DESC vertexBufferDesc; ZeroMemory( &vertexBufferDesc, sizeof(vertexBufferDesc) ); vertexBufferDesc.Usage = D3D11_USAGE_DEFAULT; vertexBufferDesc.ByteWidth = sizeof( Vertex ) * NumSphereVertices; vertexBufferDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER; vertexBufferDesc.CPUAccessFlags = 0; vertexBufferDesc.MiscFlags = 0; D3D11_SUBRESOURCE_DATA vertexBufferData; ZeroMemory( &vertexBufferData, sizeof(vertexBufferData) ); vertexBufferData.pSysMem = &vertices[0]; hr = d3d11Device->CreateBuffer( &vertexBufferDesc, &vertexBufferData, &sphereVertBuffer); std::vector<DWORD> indices(NumSphereFaces * 3); int k = 0; for(DWORD l = 0; l < LongLines-1; ++l) { indices[k] = 0; indices[k+1] = l+1; indices[k+2] = l+2; k += 3; } indices[k] = 0; indices[k+1] = LongLines; indices[k+2] = 1; k += 3; for(DWORD i = 0; i < LatLines-3; ++i) { for(DWORD j = 0; j < LongLines-1; ++j) { indices[k] = i*LongLines+j+1; indices[k+1] = i*LongLines+j+2; indices[k+2] = (i+1)*LongLines+j+1; indices[k+3] = (i+1)*LongLines+j+1; indices[k+4] = i*LongLines+j+2; indices[k+5] = (i+1)*LongLines+j+2; k += 6; // next quad } indices[k] = (i*LongLines)+LongLines; indices[k+1] = (i*LongLines)+1; indices[k+2] = ((i+1)*LongLines)+LongLines; indices[k+3] = ((i+1)*LongLines)+LongLines; indices[k+4] = (i*LongLines)+1; indices[k+5] = ((i+1)*LongLines)+1; k += 6; } for(DWORD l = 0; l < LongLines-1; ++l) { indices[k] = NumSphereVertices-1; indices[k+1] = (NumSphereVertices-1)-(l+1); indices[k+2] = (NumSphereVertices-1)-(l+2); k += 3; } indices[k] = NumSphereVertices-1; indices[k+1] = (NumSphereVertices-1)-LongLines; indices[k+2] = NumSphereVertices-2; D3D11_BUFFER_DESC indexBufferDesc; ZeroMemory( &indexBufferDesc, sizeof(indexBufferDesc) ); indexBufferDesc.Usage = D3D11_USAGE_DEFAULT; indexBufferDesc.ByteWidth = sizeof(DWORD) * NumSphereFaces * 3; indexBufferDesc.BindFlags = D3D11_BIND_INDEX_BUFFER; indexBufferDesc.CPUAccessFlags = 0; indexBufferDesc.MiscFlags = 0; D3D11_SUBRESOURCE_DATA iinitData; iinitData.pSysMem = &indices[0]; d3d11Device->CreateBuffer(&indexBufferDesc, &iinitData, &sphereIndexBuffer); } ///////////////**************new**************//////////////////// void InitD2DScreenTexture() { //Create the vertex buffer Vertex v[] = { // Front Face Vertex(-1.0f, -1.0f, -1.0f, 0.0f, 1.0f,-1.0f, -1.0f, -1.0f), Vertex(-1.0f, 1.0f, -1.0f, 0.0f, 0.0f,-1.0f, 1.0f, -1.0f), Vertex( 1.0f, 1.0f, -1.0f, 1.0f, 0.0f, 1.0f, 1.0f, -1.0f), Vertex( 1.0f, -1.0f, -1.0f, 1.0f, 1.0f, 1.0f, -1.0f, -1.0f), }; DWORD indices[] = { // Front Face 0, 1, 2, 0, 2, 3, }; D3D11_BUFFER_DESC indexBufferDesc; ZeroMemory( &indexBufferDesc, sizeof(indexBufferDesc) ); indexBufferDesc.Usage = D3D11_USAGE_DEFAULT; indexBufferDesc.ByteWidth = sizeof(DWORD) * 2 * 3; indexBufferDesc.BindFlags = D3D11_BIND_INDEX_BUFFER; indexBufferDesc.CPUAccessFlags = 0; indexBufferDesc.MiscFlags = 0; D3D11_SUBRESOURCE_DATA iinitData; iinitData.pSysMem = indices; d3d11Device->CreateBuffer(&indexBufferDesc, &iinitData, &d2dIndexBuffer); D3D11_BUFFER_DESC vertexBufferDesc; ZeroMemory( &vertexBufferDesc, sizeof(vertexBufferDesc) ); vertexBufferDesc.Usage = D3D11_USAGE_DEFAULT; vertexBufferDesc.ByteWidth = sizeof( Vertex ) * 4; vertexBufferDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER; vertexBufferDesc.CPUAccessFlags = 0; vertexBufferDesc.MiscFlags = 0; D3D11_SUBRESOURCE_DATA vertexBufferData; ZeroMemory( &vertexBufferData, sizeof(vertexBufferData) ); vertexBufferData.pSysMem = v; hr = d3d11Device->CreateBuffer( &vertexBufferDesc, &vertexBufferData, &d2dVertBuffer); //Create A shader resource view from the texture D2D will render to, //So we can use it to texture a square which overlays our scene d3d11Device->CreateShaderResourceView(sharedTex11, NULL, &d2dTexture); } bool InitScene() { InitD2DScreenTexture(); ///////////////**************new**************//////////////////// CreateSphere(10, 10); ///////////////**************new**************//////////////////// //Compile Shaders from shader file hr = D3DX11CompileFromFile(L"Effects.fx", 0, 0, "VS", "vs_4_0", 0, 0, 0, &VS_Buffer, 0, 0); hr = D3DX11CompileFromFile(L"Effects.fx", 0, 0, "PS", "ps_4_0", 0, 0, 0, &PS_Buffer, 0, 0); hr = D3DX11CompileFromFile(L"Effects.fx", 0, 0, "D2D_PS", "ps_4_0", 0, 0, 0, &D2D_PS_Buffer, 0, 0); ///////////////**************new**************//////////////////// hr = D3DX11CompileFromFile(L"Effects.fx", 0, 0, "SKYMAP_VS", "vs_4_0", 0, 0, 0, &SKYMAP_VS_Buffer, 0, 0); hr = D3DX11CompileFromFile(L"Effects.fx", 0, 0, "SKYMAP_PS", "ps_4_0", 0, 0, 0, &SKYMAP_PS_Buffer, 0, 0); ///////////////**************new**************//////////////////// //Create the Shader Objects hr = d3d11Device->CreateVertexShader(VS_Buffer->GetBufferPointer(), VS_Buffer->GetBufferSize(), NULL, &VS); hr = d3d11Device->CreatePixelShader(PS_Buffer->GetBufferPointer(), PS_Buffer->GetBufferSize(), NULL, &PS); hr = d3d11Device->CreatePixelShader(D2D_PS_Buffer->GetBufferPointer(), D2D_PS_Buffer->GetBufferSize(), NULL, &D2D_PS); ///////////////**************new**************//////////////////// hr = d3d11Device->CreateVertexShader(SKYMAP_VS_Buffer->GetBufferPointer(), SKYMAP_VS_Buffer->GetBufferSize(), NULL, &SKYMAP_VS); hr = d3d11Device->CreatePixelShader(SKYMAP_PS_Buffer->GetBufferPointer(), SKYMAP_PS_Buffer->GetBufferSize(), NULL, &SKYMAP_PS); ///////////////**************new**************//////////////////// //Set Vertex and Pixel Shaders d3d11DevCon->VSSetShader(VS, 0, 0); d3d11DevCon->PSSetShader(PS, 0, 0); light.dir = XMFLOAT3(0.0f, 1.0f, 0.0f); light.ambient = XMFLOAT4(0.2f, 0.2f, 0.2f, 1.0f); light.diffuse = XMFLOAT4(1.0f, 1.0f, 1.0f, 1.0f); //Create the vertex buffer Vertex v[] = { // Bottom Face Vertex(-1.0f, -1.0f, -1.0f, 100.0f, 100.0f, 0.0f, 1.0f, 0.0f), Vertex( 1.0f, -1.0f, -1.0f, 0.0f, 100.0f, 0.0f, 1.0f, 0.0f), Vertex( 1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f), Vertex(-1.0f, -1.0f, 1.0f, 100.0f, 0.0f, 0.0f, 1.0f, 0.0f), }; DWORD indices[] = { 0, 1, 2, 0, 2, 3, }; D3D11_BUFFER_DESC indexBufferDesc; ZeroMemory( &indexBufferDesc, sizeof(indexBufferDesc) ); indexBufferDesc.Usage = D3D11_USAGE_DEFAULT; indexBufferDesc.ByteWidth = sizeof(DWORD) * 2 * 3; indexBufferDesc.BindFlags = D3D11_BIND_INDEX_BUFFER; indexBufferDesc.CPUAccessFlags = 0; indexBufferDesc.MiscFlags = 0; D3D11_SUBRESOURCE_DATA iinitData; iinitData.pSysMem = indices; d3d11Device->CreateBuffer(&indexBufferDesc, &iinitData, &squareIndexBuffer); D3D11_BUFFER_DESC vertexBufferDesc; ZeroMemory( &vertexBufferDesc, sizeof(vertexBufferDesc) ); vertexBufferDesc.Usage = D3D11_USAGE_DEFAULT; vertexBufferDesc.ByteWidth = sizeof( Vertex ) * 4; vertexBufferDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER; vertexBufferDesc.CPUAccessFlags = 0; vertexBufferDesc.MiscFlags = 0; D3D11_SUBRESOURCE_DATA vertexBufferData; ZeroMemory( &vertexBufferData, sizeof(vertexBufferData) ); vertexBufferData.pSysMem = v; hr = d3d11Device->CreateBuffer( &vertexBufferDesc, &vertexBufferData, &squareVertBuffer); //Create the Input Layout hr = d3d11Device->CreateInputLayout( layout, numElements, VS_Buffer->GetBufferPointer(), VS_Buffer->GetBufferSize(), &vertLayout ); //Set the Input Layout d3d11DevCon->IASetInputLayout( vertLayout ); //Set Primitive Topology d3d11DevCon->IASetPrimitiveTopology( D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST ); //Create the Viewport D3D11_VIEWPORT viewport; ZeroMemory(&viewport, sizeof(D3D11_VIEWPORT)); viewport.TopLeftX = 0; viewport.TopLeftY = 0; viewport.Width = Width; viewport.Height = Height; viewport.MinDepth = 0.0f; viewport.MaxDepth = 1.0f; //Set the Viewport d3d11DevCon->RSSetViewports(1, &viewport); //Create the buffer to send to the cbuffer in effect file D3D11_BUFFER_DESC cbbd; ZeroMemory(&cbbd, sizeof(D3D11_BUFFER_DESC)); cbbd.Usage = D3D11_USAGE_DEFAULT; cbbd.ByteWidth = sizeof(cbPerObject); cbbd.BindFlags = D3D11_BIND_CONSTANT_BUFFER; cbbd.CPUAccessFlags = 0; cbbd.MiscFlags = 0; hr = d3d11Device->CreateBuffer(&cbbd, NULL, &cbPerObjectBuffer); //Create the buffer to send to the cbuffer per frame in effect file ZeroMemory(&cbbd, sizeof(D3D11_BUFFER_DESC)); cbbd.Usage = D3D11_USAGE_DEFAULT; cbbd.ByteWidth = sizeof(cbPerFrame); cbbd.BindFlags = D3D11_BIND_CONSTANT_BUFFER; cbbd.CPUAccessFlags = 0; cbbd.MiscFlags = 0; hr = d3d11Device->CreateBuffer(&cbbd, NULL, &cbPerFrameBuffer); //Camera information camPosition = XMVectorSet( 0.0f, 5.0f, -8.0f, 0.0f ); camTarget = XMVectorSet( 0.0f, 0.0f, 0.0f, 0.0f ); camUp = XMVectorSet( 0.0f, 1.0f, 0.0f, 0.0f ); //Set the View matrix camView = XMMatrixLookAtLH( camPosition, camTarget, camUp ); //Set the Projection matrix camProjection = XMMatrixPerspectiveFovLH( 0.4f*3.14f, (float)Width/Height, 1.0f, 1000.0f); D3D11_BLEND_DESC blendDesc; ZeroMemory( &blendDesc, sizeof(blendDesc) ); D3D11_RENDER_TARGET_BLEND_DESC rtbd; ZeroMemory( &rtbd, sizeof(rtbd) ); rtbd.BlendEnable = true; rtbd.SrcBlend = D3D11_BLEND_SRC_COLOR; rtbd.DestBlend = D3D11_BLEND_INV_SRC_ALPHA; rtbd.BlendOp = D3D11_BLEND_OP_ADD; rtbd.SrcBlendAlpha = D3D11_BLEND_ONE; rtbd.DestBlendAlpha = D3D11_BLEND_ZERO; rtbd.BlendOpAlpha = D3D11_BLEND_OP_ADD; rtbd.RenderTargetWriteMask = D3D10_COLOR_WRITE_ENABLE_ALL; blendDesc.AlphaToCoverageEnable = false; blendDesc.RenderTarget[0] = rtbd; hr = D3DX11CreateShaderResourceViewFromFile( d3d11Device, L"grass.jpg", NULL, NULL, &CubesTexture, NULL ); ///////////////**************new**************//////////////////// //Tell D3D we will be loading a cube texture D3DX11_IMAGE_LOAD_INFO loadSMInfo; loadSMInfo.MiscFlags = D3D11_RESOURCE_MISC_TEXTURECUBE; //Load the texture ID3D11Texture2D* SMTexture = 0; hr = D3DX11CreateTextureFromFile(d3d11Device, L"skymap.dds", &loadSMInfo, 0, (ID3D11Resource**)&SMTexture, 0); //Create the textures description D3D11_TEXTURE2D_DESC SMTextureDesc; SMTexture->GetDesc(&SMTextureDesc); //Tell D3D We have a cube texture, which is an array of 2D textures D3D11_SHADER_RESOURCE_VIEW_DESC SMViewDesc; SMViewDesc.Format = SMTextureDesc.Format; SMViewDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURECUBE; SMViewDesc.TextureCube.MipLevels = SMTextureDesc.MipLevels; SMViewDesc.TextureCube.MostDetailedMip = 0; //Create the Resource view hr = d3d11Device->CreateShaderResourceView(SMTexture, &SMViewDesc, &smrv); ///////////////**************new**************//////////////////// // Describe the Sample State D3D11_SAMPLER_DESC sampDesc; ZeroMemory( &sampDesc, sizeof(sampDesc) ); sampDesc.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR; sampDesc.AddressU = D3D11_TEXTURE_ADDRESS_WRAP; sampDesc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP; sampDesc.AddressW = D3D11_TEXTURE_ADDRESS_WRAP; sampDesc.ComparisonFunc = D3D11_COMPARISON_NEVER; sampDesc.MinLOD = 0; sampDesc.MaxLOD = D3D11_FLOAT32_MAX; //Create the Sample State hr = d3d11Device->CreateSamplerState( &sampDesc, &CubesTexSamplerState ); d3d11Device->CreateBlendState(&blendDesc, &Transparency); D3D11_RASTERIZER_DESC cmdesc; ZeroMemory(&cmdesc, sizeof(D3D11_RASTERIZER_DESC)); cmdesc.FillMode = D3D11_FILL_SOLID; cmdesc.CullMode = D3D11_CULL_BACK; cmdesc.FrontCounterClockwise = true; hr = d3d11Device->CreateRasterizerState(&cmdesc, &CCWcullMode); cmdesc.FrontCounterClockwise = false; hr = d3d11Device->CreateRasterizerState(&cmdesc, &CWcullMode); ///////////////**************new**************//////////////////// cmdesc.CullMode = D3D11_CULL_NONE; hr = d3d11Device->CreateRasterizerState(&cmdesc, &RSCullNone); D3D11_DEPTH_STENCIL_DESC dssDesc; ZeroMemory(&dssDesc, sizeof(D3D11_DEPTH_STENCIL_DESC)); dssDesc.DepthEnable = true; dssDesc.DepthWriteMask = D3D11_DEPTH_WRITE_MASK_ALL; dssDesc.DepthFunc = D3D11_COMPARISON_LESS_EQUAL; d3d11Device->CreateDepthStencilState(&dssDesc, &DSLessEqual); ///////////////**************new**************//////////////////// return true; } void StartTimer() { LARGE_INTEGER frequencyCount; QueryPerformanceFrequency(&frequencyCount); countsPerSecond = double(frequencyCount.QuadPart); QueryPerformanceCounter(&frequencyCount); CounterStart = frequencyCount.QuadPart; } double GetTime() { LARGE_INTEGER currentTime; QueryPerformanceCounter(¤tTime); return double(currentTime.QuadPart-CounterStart)/countsPerSecond; } double GetFrameTime() { LARGE_INTEGER currentTime; __int64 tickCount; QueryPerformanceCounter(¤tTime); tickCount = currentTime.QuadPart-frameTimeOld; frameTimeOld = currentTime.QuadPart; if(tickCount < 0.0f) tickCount = 0.0f; return float(tickCount)/countsPerSecond; } void UpdateScene(double time) { //Reset cube1World groundWorld = XMMatrixIdentity(); //Define cube1's world space matrix Scale = XMMatrixScaling( 500.0f, 10.0f, 500.0f ); Translation = XMMatrixTranslation( 0.0f, 10.0f, 0.0f ); //Set cube1's world space using the transformations groundWorld = Scale * Translation; ///////////////**************new**************//////////////////// //Reset sphereWorld sphereWorld = XMMatrixIdentity(); //Define sphereWorld's world space matrix Scale = XMMatrixScaling( 5.0f, 5.0f, 5.0f ); //Make sure the sphere is always centered around camera Translation = XMMatrixTranslation( XMVectorGetX(camPosition), XMVectorGetY(camPosition), XMVectorGetZ(camPosition) ); //Set sphereWorld's world space using the transformations sphereWorld = Scale * Translation; ///////////////**************new**************//////////////////// } void RenderText(std::wstring text, int inInt) { d3d11DevCon->PSSetShader(D2D_PS, 0, 0); //Release the D3D 11 Device keyedMutex11->ReleaseSync(0); //Use D3D10.1 device keyedMutex10->AcquireSync(0, 5); //Draw D2D content D2DRenderTarget->BeginDraw(); //Clear D2D Background D2DRenderTarget->Clear(D2D1::ColorF(0.0f, 0.0f, 0.0f, 0.0f)); //Create our string std::wostringstream printString; printString << text << inInt; printText = printString.str(); //Set the Font Color D2D1_COLOR_F FontColor = D2D1::ColorF(1.0f, 1.0f, 1.0f, 1.0f); //Set the brush color D2D will use to draw with Brush->SetColor(FontColor); //Create the D2D Render Area D2D1_RECT_F layoutRect = D2D1::RectF(0, 0, Width, Height); //Draw the Text D2DRenderTarget->DrawText( printText.c_str(), wcslen(printText.c_str()), TextFormat, layoutRect, Brush ); D2DRenderTarget->EndDraw(); //Release the D3D10.1 Device keyedMutex10->ReleaseSync(1); //Use the D3D11 Device keyedMutex11->AcquireSync(1, 5); //Use the shader resource representing the direct2d render target //to texture a square which is rendered in screen space so it //overlays on top of our entire scene. We use alpha blending so //that the entire background of the D2D render target is "invisible", //And only the stuff we draw with D2D will be visible (the text) //Set the blend state for D2D render target texture objects d3d11DevCon->OMSetBlendState(Transparency, NULL, 0xffffffff); //Set the d2d Index buffer d3d11DevCon->IASetIndexBuffer( d2dIndexBuffer, DXGI_FORMAT_R32_UINT, 0); //Set the d2d vertex buffer UINT stride = sizeof( Vertex ); UINT offset = 0; d3d11DevCon->IASetVertexBuffers( 0, 1, &d2dVertBuffer, &stride, &offset ); WVP = XMMatrixIdentity(); cbPerObj.WVP = XMMatrixTranspose(WVP); d3d11DevCon->UpdateSubresource( cbPerObjectBuffer, 0, NULL, &cbPerObj, 0, 0 ); d3d11DevCon->VSSetConstantBuffers( 0, 1, &cbPerObjectBuffer ); d3d11DevCon->PSSetShaderResources( 0, 1, &d2dTexture ); d3d11DevCon->PSSetSamplers( 0, 1, &CubesTexSamplerState ); d3d11DevCon->RSSetState(CWcullMode); //Draw the second cube d3d11DevCon->DrawIndexed( 6, 0, 0 ); } void DrawScene() { //Clear our render target and depth/stencil view float bgColor[4] = { 0.1f, 0.1f, 0.1f, 1.0f }; d3d11DevCon->ClearRenderTargetView(renderTargetView, bgColor); d3d11DevCon->ClearDepthStencilView(depthStencilView, D3D11_CLEAR_DEPTH|D3D11_CLEAR_STENCIL, 1.0f, 0); constbuffPerFrame.light = light; d3d11DevCon->UpdateSubresource( cbPerFrameBuffer, 0, NULL, &constbuffPerFrame, 0, 0 ); d3d11DevCon->PSSetConstantBuffers(0, 1, &cbPerFrameBuffer); //Set our Render Target d3d11DevCon->OMSetRenderTargets( 1, &renderTargetView, depthStencilView ); //Set the default blend state (no blending) for opaque objects d3d11DevCon->OMSetBlendState(0, 0, 0xffffffff); //Set Vertex and Pixel Shaders d3d11DevCon->VSSetShader(VS, 0, 0); d3d11DevCon->PSSetShader(PS, 0, 0); //Set the grounds index buffer d3d11DevCon->IASetIndexBuffer( squareIndexBuffer, DXGI_FORMAT_R32_UINT, 0); //Set the grounds vertex buffer UINT stride = sizeof( Vertex ); UINT offset = 0; d3d11DevCon->IASetVertexBuffers( 0, 1, &squareVertBuffer, &stride, &offset ); //Set the WVP matrix and send it to the constant buffer in effect file WVP = groundWorld * camView * camProjection; cbPerObj.WVP = XMMatrixTranspose(WVP); cbPerObj.World = XMMatrixTranspose(groundWorld); d3d11DevCon->UpdateSubresource( cbPerObjectBuffer, 0, NULL, &cbPerObj, 0, 0 ); d3d11DevCon->VSSetConstantBuffers( 0, 1, &cbPerObjectBuffer ); d3d11DevCon->PSSetShaderResources( 0, 1, &CubesTexture ); d3d11DevCon->PSSetSamplers( 0, 1, &CubesTexSamplerState ); d3d11DevCon->RSSetState(CCWcullMode); d3d11DevCon->DrawIndexed( 6, 0, 0 ); ///////////////**************new**************//////////////////// //Set the spheres index buffer d3d11DevCon->IASetIndexBuffer( sphereIndexBuffer, DXGI_FORMAT_R32_UINT, 0); //Set the spheres vertex buffer d3d11DevCon->IASetVertexBuffers( 0, 1, &sphereVertBuffer, &stride, &offset ); //Set the WVP matrix and send it to the constant buffer in effect file WVP = sphereWorld * camView * camProjection; cbPerObj.WVP = XMMatrixTranspose(WVP); cbPerObj.World = XMMatrixTranspose(sphereWorld); d3d11DevCon->UpdateSubresource( cbPerObjectBuffer, 0, NULL, &cbPerObj, 0, 0 ); d3d11DevCon->VSSetConstantBuffers( 0, 1, &cbPerObjectBuffer ); //Send our skymap resource view to pixel shader d3d11DevCon->PSSetShaderResources( 0, 1, &smrv ); d3d11DevCon->PSSetSamplers( 0, 1, &CubesTexSamplerState ); //Set the new VS and PS shaders d3d11DevCon->VSSetShader(SKYMAP_VS, 0, 0); d3d11DevCon->PSSetShader(SKYMAP_PS, 0, 0); //Set the new depth/stencil and RS states d3d11DevCon->OMSetDepthStencilState(DSLessEqual, 0); d3d11DevCon->RSSetState(RSCullNone); d3d11DevCon->DrawIndexed( NumSphereFaces * 3, 0, 0 ); //Set the default VS shader and depth/stencil state d3d11DevCon->VSSetShader(VS, 0, 0); d3d11DevCon->OMSetDepthStencilState(NULL, 0); ///////////////**************new**************//////////////////// RenderText(L"FPS: ", fps); //Present the backbuffer to the screen SwapChain->Present(0, 0); } int messageloop(){ MSG msg; ZeroMemory(&msg, sizeof(MSG)); while(true) { BOOL PeekMessageL( LPMSG lpMsg, HWND hWnd, UINT wMsgFilterMin, UINT wMsgFilterMax, UINT wRemoveMsg ); if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) { if (msg.message == WM_QUIT) break; TranslateMessage(&msg); DispatchMessage(&msg); } else{ // run game code frameCount++; if(GetTime() > 1.0f) { fps = frameCount; frameCount = 0; StartTimer(); } frameTime = GetFrameTime(); DetectInput(frameTime); UpdateScene(frameTime); DrawScene(); } } return msg.wParam; } LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) { switch( msg ) { case WM_KEYDOWN: if( wParam == VK_ESCAPE ){ DestroyWindow(hwnd); } return 0; case WM_DESTROY: PostQuitMessage(0); return 0; } return DefWindowProc(hwnd, msg, wParam, lParam); } Effects.fx: struct Light { float3 dir; float4 ambient; float4 diffuse; }; cbuffer cbPerFrame { Light light; }; cbuffer cbPerObject { float4x4 WVP; float4x4 World; }; Texture2D ObjTexture; SamplerState ObjSamplerState; TextureCube SkyMap; struct VS_OUTPUT { float4 Pos : SV_POSITION; float2 TexCoord : TEXCOORD; float3 normal : NORMAL; }; struct SKYMAP_VS_OUTPUT //output structure for skymap vertex shader { float4 Pos : SV_POSITION; float3 texCoord : TEXCOORD; }; VS_OUTPUT VS(float4 inPos : POSITION, float2 inTexCoord : TEXCOORD, float3 normal : NORMAL) { VS_OUTPUT output; output.Pos = mul(inPos, WVP); output.normal = mul(normal, World); output.TexCoord = inTexCoord; return output; } SKYMAP_VS_OUTPUT SKYMAP_VS(float3 inPos : POSITION, float2 inTexCoord : TEXCOORD, float3 normal : NORMAL) { SKYMAP_VS_OUTPUT output = (SKYMAP_VS_OUTPUT)0; //Set Pos to xyww instead of xyzw, so that z will always be 1 (furthest from camera) output.Pos = mul(float4(inPos, 1.0f), WVP).xyww; output.texCoord = inPos; return output; } float4 PS(VS_OUTPUT input) : SV_TARGET { input.normal = normalize(input.normal); float4 diffuse = ObjTexture.Sample( ObjSamplerState, input.TexCoord ); float3 finalColor; finalColor = diffuse * light.ambient; finalColor += saturate(dot(light.dir, input.normal) * light.diffuse * diffuse); return float4(finalColor, diffuse.a); } float4 SKYMAP_PS(SKYMAP_VS_OUTPUT input) : SV_Target { return SkyMap.Sample(ObjSamplerState, input.texCoord); } float4 D2D_PS(VS_OUTPUT input) : SV_TARGET { float4 diffuse = ObjTexture.Sample( ObjSamplerState, input.TexCoord ); return diffuse; }
This is called Sphere Mapping. Why you not using real Cube Mapping, it's easy and simple. BTW, if you don't wanna do a tutorial on this, i think its kinda easy and you can add it to this tutorial excercise list!
on Oct 31 `15
IamU4
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