bluepig.man

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About bluepig.man

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  1. Game engine book?

    ?Game Engine Architecture?, this book may help! But l haven't read it since now, my firend told me that this book may be good for some guy who want to know game engine but not just how to use it and what it is.   May google can help you got more  answer about your question.
  2. about keyword and include

    Nice answer!  Before ask this question, l think if we want use something from language we must include some header file,but yesterdayl try to remove any header in my source file,then no error is reported.  This break my cognitive.  Your answer is very nice for me, thanks.
  3. Hey,everyone. Today, l try write some code but without include any header file, but this code run well. In my opinion, if we want use something in c++ we need to include it's header file into our program. But why these keyword no need to include any header file ? If they aren't in header file, where they are? l tried to google ,but just can't find the answer. so please help. Thanks. this the code: class a { public: int d; int b; private: }; struct B { double c; }; int A( const int &a, const double &b ) { int justTest = 5; int aa = a; int bb = b; return bb; } union MyUnion { int a; int b; struct c { double ad; }; }; int main() { a in; in.d = 0; in.d -= 5; in.b = 6; in.d -= in.b; return 0; }
  4. GameDev.net Open License

  5.   Although,l got the answer before your suggestion, thanks.
  6.   You are right,the shader flag should set to 0. it's so stupid mistake...... l should more careful about this mistake,thanks for your help,guys.
  7. Hi,l'm learning Direct 11 by <Introduction to 3D Game Programming with Direct 11>.  An trouble error break out. The Info is : error x3116:Flags parameter is invalid.This info break out when calling D3DX11CompileFromFile. This happend may because the D3DX11CompileFromFile function's  wrong caling.l try to change the fx file and  the code file,but the error still happend. The file is here: #include <windows.h> #include <xnamath.h> #include <cassert> #include <d3dx11.h> #include <dxerr.h> #include "d3dx11Effect.h" //---- Global Variable ------------------------------------------------------------------------------------ //Windows HINSTANCE g_hinst = 0; HWND g_hWnd = 0; LONG g_ClientWidth = 800; LONG g_ClientHeight = 600; //D3D ID3D11Device *g_D3dDevice = NULL; ID3D11DeviceContext *g_D3dDeviceContext = NULL; IDXGISwapChain *g_SwapChain = NULL; ID3D11DepthStencilView *g_DepthStencilView = NULL; ID3D11RenderTargetView *g_RenderTargetView = NULL; ID3D11Texture2D *g_DepthStencilBuffer = NULL; D3D11_VIEWPORT g_Vp; //Space XMMATRIX g_WorldViewProj; //Effect ID3DX11EffectTechnique *g_EffectTechnique = 0; ID3DX11Effect *g_Effect = 0; ID3D11InputLayout *g_InputLayout = 0; ID3D11Buffer *g_VertexBuffer = 0; ID3D11Buffer *g_IndexBuffer = 0; struct Vertex { XMFLOAT3 pos; XMFLOAT4 color; }; //---- Macro Define ------------------------------------------------------------------------------------ //HR define #if defined(DEBUG) | defined(_DEBUG) #ifndef HR #define HR(x) \ { \ HRESULT hr = (x); \ if(FAILED(hr)) \ { \ DXTrace(__FILE__, (DWORD)__LINE__, hr, L#x, true); \ } \ } #endif #else #ifndef HR #define HR(x) (x) #endif #endif #define KEYDOWN(vk_code) ((GetAsyncKeyState(vk_code) & 0x8000) ? 1 : 0) #define KEYUP(vk_code) ((GetAsyncKeyState(vk_code) & 0x8000) ? 0 : 1) #define ReleaseCOM(x) { if(x){ x->Release(); x = 0;} } //----Forward Declaration------------------------------------------------------------------------------------ LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); void onResizeAndInit(); void BuildInputLayout(); void BuildBuffer(); void BuildFx(); void DrawScreen(); void ReleaseAll(); bool Init_Window(); bool Init_DX(); bool Init(); //----Forward Implementation--------------------------------------------------------------------------------- int WINAPI WinMain( _In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _In_ LPSTR lpCmdLine, _In_ int nShowCmd ) { MSG msg = {0}; g_hinst = hInstance; if( !Init() ) { return FALSE; } while(msg.message != WM_QUIT) { // If there are Window messages then process them. if(PeekMessage( &msg, 0, 0, 0, PM_REMOVE )) { TranslateMessage( &msg ); DispatchMessage( &msg ); } // Otherwise, do animation/game stuff. else { if( KEYDOWN(VK_ESCAPE) ) { SendMessage(g_hWnd,WM_CLOSE,0,0); break; } DrawScreen(); } } return (msg.wParam); } bool Init_Window( ) { WNDCLASS wc; wc.style = CS_HREDRAW | CS_VREDRAW; wc.lpfnWndProc = WndProc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = g_hinst; wc.hIcon = LoadIcon(0, IDI_APPLICATION); wc.hCursor = LoadCursor(0,IDC_ARROW); wc.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH); wc.lpszMenuName = 0; wc.lpszClassName = L"D3DWndClassName"; if( !RegisterClass(&wc) ) { MessageBox( 0, L"ResiterClass Failed.", 0, 0 ); return false; } RECT R = { 0, 0, g_ClientWidth, g_ClientHeight }; AdjustWindowRect( &R, WS_OVERLAPPEDWINDOW, false ); int width = R.right - R.left; int height = R.bottom - R.top; g_hWnd = CreateWindow( L"D3DWndClassName", L"createMyWindow", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, width, height, 0, 0, g_hinst, 0); if( !g_hWnd ) { MessageBox( 0, L"CreateWindow Failed! beijule", 0, 0 ); return false; } ShowWindow( g_hWnd, SW_SHOW ); UpdateWindow( g_hWnd ); return true; } bool Init() { if( !Init_Window() ) { return false; } if( !Init_DX() ) { return false; } memset(&g_Vp, 0, sizeof(D3D11_VIEWPORT)); g_WorldViewProj = XMMatrixIdentity(); BuildFx(); BuildBuffer(); BuildInputLayout(); return true; } bool Init_DX() { HRESULT hr; D3D_FEATURE_LEVEL FeatureLevelUsed; HR( D3D11CreateDevice( 0, D3D_DRIVER_TYPE_HARDWARE, 0, D3D11_CREATE_DEVICE_DEBUG, 0, 0, D3D11_SDK_VERSION, &g_D3dDevice, &FeatureLevelUsed ,&g_D3dDeviceContext)); if( FeatureLevelUsed != D3D_FEATURE_LEVEL_11_0 ) { MessageBox( NULL, L"Unsupport d3d11", NULL, NULL ); return false; } //Now,prepare for create swapchain DXGI_SWAP_CHAIN_DESC sd; sd.BufferCount = 1; sd.BufferDesc.Height = g_ClientHeight; sd.BufferDesc.Width = g_ClientWidth; sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM; sd.BufferDesc.RefreshRate.Numerator = 60; sd.BufferDesc.RefreshRate.Denominator = 1; sd.BufferDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED; sd.BufferDesc.Scaling = DXGI_MODE_SCALING_UNSPECIFIED; sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT; sd.OutputWindow = g_hWnd; sd.Windowed = true; sd.SwapEffect = DXGI_SWAP_EFFECT_DISCARD; sd.SampleDesc.Count = 1; sd.SampleDesc.Quality = 0; sd.Flags = 0; IDXGIDevice *dxgiDevice = 0; hr = g_D3dDevice->QueryInterface( __uuidof( IDXGIDevice ), (void **)&dxgiDevice ); if( FAILED(hr) ) { MessageBox( NULL, L"Retrive DXGIDEVICE failed ", NULL, NULL ); return false; } IDXGIAdapter *dxgiAdapter = 0; hr = dxgiDevice->GetParent( __uuidof( IDXGIAdapter ), (void **)&dxgiAdapter ); if( FAILED(hr) ) { MessageBox( NULL, L"Retrive DXGIADAPTER failed ", NULL, NULL ); return false; } IDXGIFactory *dxgiFactory = 0; hr = dxgiAdapter->GetParent( __uuidof( IDXGIFactory ), (void **)&dxgiFactory ); if( FAILED(hr) ) { MessageBox( NULL, L"Retrive DXGIFACTORY failed ", NULL, NULL ); return false; } //Now it's the time to create swapchain hr = dxgiFactory->CreateSwapChain( g_D3dDevice, &sd, &g_SwapChain ); dxgiFactory->MakeWindowAssociation( g_hWnd, DXGI_MWA_NO_WINDOW_CHANGES | DXGI_MWA_NO_PRINT_SCREEN); if( FAILED(hr) ) { MessageBox( NULL, L"Create SwapChain failed ", NULL, NULL ); return false; } //After Create SwapChain,we should release our acquired COM interfaces ReleaseCOM( dxgiDevice ); ReleaseCOM( dxgiAdapter ); ReleaseCOM( dxgiFactory ); onResizeAndInit(); } void onResizeAndInit() { assert( g_D3dDeviceContext ); assert( g_D3dDevice ); assert( g_SwapChain ); ReleaseCOM(g_RenderTargetView); ReleaseCOM(g_DepthStencilView); ReleaseCOM(g_DepthStencilBuffer); HR( g_SwapChain->ResizeBuffers( 1, g_ClientWidth, g_ClientHeight, DXGI_FORMAT_R8G8B8A8_UNORM, 0) ); ID3D11Texture2D *backBuffer = 0; HR( g_SwapChain->GetBuffer( 0, __uuidof( ID3D11Texture2D ), reinterpret_cast<void **>(&backBuffer) )) ; HR( g_D3dDevice->CreateRenderTargetView( backBuffer, 0, &g_RenderTargetView ) ); ReleaseCOM(backBuffer); D3D11_TEXTURE2D_DESC DepthStencilDesc; DepthStencilDesc.Width = g_ClientWidth; DepthStencilDesc.Height = g_ClientHeight; DepthStencilDesc.Format = DXGI_FORMAT_D24_UNORM_S8_UINT; DepthStencilDesc.MipLevels = 1; DepthStencilDesc.ArraySize = 1; DepthStencilDesc.Usage = D3D11_USAGE_DEFAULT; DepthStencilDesc.BindFlags = D3D11_BIND_DEPTH_STENCIL; DepthStencilDesc.CPUAccessFlags = 0; DepthStencilDesc.MiscFlags = 0; DepthStencilDesc.SampleDesc.Count = 1; DepthStencilDesc.SampleDesc.Quality = 0; HR( g_D3dDevice->CreateTexture2D( &DepthStencilDesc, 0, &g_DepthStencilBuffer) ); HR( g_D3dDevice->CreateDepthStencilView( g_DepthStencilBuffer, 0, &g_DepthStencilView ) ); g_D3dDeviceContext->OMSetRenderTargets( 1, &g_RenderTargetView, g_DepthStencilView ); g_Vp.TopLeftX = 0; g_Vp.TopLeftY = 0; g_Vp.Width = static_cast<float>(g_ClientWidth); g_Vp.Height = static_cast<float>(g_ClientHeight); g_Vp.MinDepth = 0; g_Vp.MaxDepth = 1.0f; g_D3dDeviceContext->RSSetViewports( 1, &g_Vp ); } void ReleaseAll() { ReleaseCOM(g_RenderTargetView); ReleaseCOM(g_DepthStencilView); ReleaseCOM(g_InputLayout); ReleaseCOM(g_SwapChain); if( g_D3dDeviceContext ) { g_D3dDeviceContext->ClearState(); } ReleaseCOM( g_VertexBuffer ); ReleaseCOM( g_IndexBuffer ); ReleaseCOM( g_InputLayout ); ReleaseCOM( g_Effect ); ReleaseCOM(g_D3dDevice); ReleaseCOM(g_D3dDeviceContext); } void DrawScreen() { assert( g_D3dDeviceContext ); assert( g_SwapChain ); ID3DX11EffectMatrixVariable *fxWorldViewProj; fxWorldViewProj = g_Effect->GetVariableByName("gWorldViewProj")->AsMatrix(); fxWorldViewProj->SetMatrix( (float *)&g_WorldViewProj ); D3DX11_TECHNIQUE_DESC techDesc; g_EffectTechnique->GetDesc( &techDesc ); g_EffectTechnique->GetPassByIndex(0)->Apply( 0, g_D3dDeviceContext ); UINT stride = sizeof(Vertex); g_D3dDeviceContext->IASetInputLayout( g_InputLayout ); g_D3dDeviceContext->IASetPrimitiveTopology( D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST ); g_D3dDeviceContext->IASetVertexBuffers( 0, 1, &g_VertexBuffer, &stride, 0 ); g_D3dDeviceContext->IASetIndexBuffer( g_IndexBuffer, DXGI_FORMAT_R32_UINT, 0); XMVECTORF32 color = { 0.0f, 0.0f, 1.0f, 1.0f }; g_D3dDeviceContext->ClearRenderTargetView( g_RenderTargetView, reinterpret_cast<const float*>(&color) ); g_D3dDeviceContext->ClearDepthStencilView( g_DepthStencilView, D3D11_CLEAR_DEPTH | D3D11_CLEAR_STENCIL, 1.0f, 0.0f ); g_D3dDeviceContext->DrawIndexed( 36, 0, 0 ); HR(g_SwapChain->Present(0,0)); } void BuildFx() { DWORD shaderFlag; #if defined(DEBUG) || defined(_DEBUG) shaderFlag |= D3D10_SHADER_DEBUG; shaderFlag |= D3D10_SHADER_SKIP_OPTIMIZATION; #endif ID3D10Blob *CompiledShader; ID3D10Blob *CompiledError; HR ( D3DX11CompileFromFile( L"FX/boxShader.fx", 0, 0, 0, "fx_5_0", shaderFlag, 0, 0, &CompiledShader, &CompiledError, 0 ) ); if( CompiledError ) { MessageBoxA( 0, (char *)CompiledError->GetBufferPointer(), 0, 0 ); ReleaseCOM( CompiledError ); } HR( D3DX11CreateEffectFromMemory( CompiledShader->GetBufferPointer(), CompiledShader->GetBufferSize(), 0, g_D3dDevice, &g_Effect ) ); ReleaseCOM(CompiledShader); } void BuildBuffer() { Vertex BoxVertex[] = { { XMFLOAT3(-0.5f, 0.5f, -0.5f), XMFLOAT4(1.0f, 0.0f, 0.0f, 0.0f) }, { XMFLOAT3( 0.5f, 0.5f, -0.5f), XMFLOAT4(0.0f, 1.0f, 0.0f, 0.0f) }, { XMFLOAT3(-0.5f, -0.5f, -0.5f), XMFLOAT4(0.0f, 0.0f, 1.0f, 0.0f) }, { XMFLOAT3( 0.5f, -0.5f, -0.5f), XMFLOAT4(1.0f, 1.0f, 0.0f, 0.0f) }, { XMFLOAT3(-0.5f, 0.5f, 0.5f), XMFLOAT4(1.0f, 0.0f, 1.0f, 0.0f) }, { XMFLOAT3( 0.5f, 0.5f, 0.5f), XMFLOAT4(0.0f, 1.0f, 1.0f, 0.0f) }, { XMFLOAT3(-0.5f, -0.5f, 0.5f), XMFLOAT4(1.0f, 1.0f, 1.0f, 0.0f) }, { XMFLOAT3( 0.5f, -0.5f, 0.5f), XMFLOAT4(0.5f, 0.5f, 0.5f, 0.0f) }, }; D3D11_BUFFER_DESC vDesc; //memset( &vDesc, 0, sizeof(D3D11_BUFFER_DESC) ); vDesc.ByteWidth = sizeof(Vertex) * 8; vDesc.Usage = D3D11_USAGE_IMMUTABLE; vDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER; vDesc.CPUAccessFlags = 0; vDesc.MiscFlags = 0; vDesc.StructureByteStride = 0; D3D11_SUBRESOURCE_DATA vInitData; vInitData.pSysMem = BoxVertex; HR( g_D3dDevice->CreateBuffer( &vDesc, &vInitData, &g_VertexBuffer) ); UINT indices[] = { //FRONT 0, 1, 2, 2, 1, 3, //TOP 0, 4, 5, 0, 5, 1, //RIGHT 1, 5, 3, 3, 5, 7, //BACK 4, 6, 5, 5, 6, 7, //BOTTOM 2, 7, 1, 2, 3, 7, //LEFT 0, 2, 4, 2, 6, 4 }; D3D11_BUFFER_DESC bDesc; //memset( &bDesc, 0, sizeof( bDesc ) ); bDesc.ByteWidth = sizeof( UINT ) * 36; bDesc.Usage = D3D11_USAGE_IMMUTABLE; bDesc.BindFlags = D3D11_BIND_INDEX_BUFFER; bDesc.CPUAccessFlags = 0; bDesc.MiscFlags = 0; bDesc.StructureByteStride = 0; D3D11_SUBRESOURCE_DATA iInitDate; iInitDate.pSysMem = indices; HR( g_D3dDevice->CreateBuffer( &bDesc, &iInitDate, &g_IndexBuffer ) ); } void BuildInputLayout() { D3D11_INPUT_ELEMENT_DESC idesc[] = { { "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 }, { "COLOR", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, 12, D3D11_INPUT_PER_VERTEX_DATA, 0 } }; UINT numElements = ARRAYSIZE( idesc ); g_EffectTechnique = g_Effect->GetTechniqueByName( "ColorTech" ); D3DX11_PASS_DESC passDesc; g_EffectTechnique->GetPassByName("p0")->GetDesc(&passDesc); HR( g_D3dDevice->CreateInputLayout( idesc, numElements, passDesc.pIAInputSignature , passDesc.IAInputSignatureSize, &g_InputLayout) ); } LRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) { switch( msg ) { case WM_SIZE: g_ClientWidth = LOWORD( lParam ); g_ClientHeight = HIWORD( lParam ); if( g_D3dDevice ) { if( wParam != SIZE_MINIMIZED ) { onResizeAndInit(); } } return 0; case WM_DESTROY: ReleaseAll(); PostQuitMessage(0); return 0; default: break; } return DefWindowProc(hWnd, msg, wParam, lParam); } you may need the BoxShader.fx file: // // Effect for boxdemo // cbuffer cbPerObject { float4x4 gWorldViewProj; }; struct VertexIn { float3 PosL : POSITION; float4 color : COLOR; }; struct VertexOut { float4 PosH : SV_POSITION; float4 color : COLOR; }; VertexOut VS( VertexIn vin ) { VertexOut vout; vout.PosH = mul( float4( vin.PosL, 1.0f ), gWorldViewProj ); vout.color = vin.color; return vout; } float4 PS( VertexOut pin ) : SV_Target { return pin.color; } technique11 ColorTech { pass p0 { SetVertexShader( CompileShader( vs_5_0, VS() ) ); SetGeometryShader( NULL ); SetPixelShader( CompileShader( ps_5_0, PS() ) ); } } Thanks for your help.