关于这方面的文档网上有很多：
http://www.zwqxin.com/archives/shaderglsl/review-normal-map-bump-map.html
其中的Tangent Space(切线空间)最不好理解，参考：
http://www.terathon.com/code/tangent.html
http://blog.csdn.net/soilwork/article/details/1452437
我自己得用DX的D3DXComputeTangentFrameEx函数做的效果：
HLSL:
//-------------------------------------------------------------------------------------- // File: SimpleSample.fx // // The effect file for the SimpleSample sample. // // Copyright (c) Microsoft Corporation. All rights reserved. //-------------------------------------------------------------------------------------- //-------------------------------------------------------------------------------------- // Global variables //-------------------------------------------------------------------------------------- float4 g_MaterialAmbientColor; // Material's ambient color float4 g_MaterialDiffuseColor; // Material's diffuse color float4 g_LightAmbient; // Light's diffuse color float3 g_LightDir; // Light's direction in world space float4 g_LightDiffuse; // Light's diffuse color texture g_MeshTexture; // Color texture for mesh texture g_NormalTexture; // Color texture for mesh float g_fTime; // App's time in seconds float4x4 g_mWorld; // World matrix for object float4x4 g_mWorldViewProjection; // World * View * Projection matrix //-------------------------------------------------------------------------------------- // Texture samplers //-------------------------------------------------------------------------------------- sampler MeshTextureSampler = sampler_state { Texture = <g_MeshTexture>; MipFilter = LINEAR; MinFilter = LINEAR; MagFilter = LINEAR; }; sampler samplerNormalTexture = sampler_state { Texture = <g_NormalTexture>; MipFilter = LINEAR; MinFilter = LINEAR; MagFilter = LINEAR; }; void RenderBumpMapVS( float4 inPositionOS : POSITION, float2 inTexCoord : TEXCOORD0, float3 inNormalOS : NORMAL, float3 inTangentOS : TANGENT, float3 inBinormalOS : BINORMAL, out float4 outPosition : POSITION, out float2 outTexCoord : TEXCOORD0, out float3 outLightTS : TEXCOORD1 ) { // 将顶点变换到相机透视空间 outPosition = mul( inPositionOS, g_mWorldViewProjection ); // 复制贴图坐标 outTexCoord = inTexCoord; // 将模型空间中的法线变换到世界坐标，注意，仅仅是旋转变换 float3 vNormalWS = mul(inNormalOS, (float3x3) g_mWorld); float3 vTangentWS = mul(inTangentOS, (float3x3) g_mWorld); float3 vBinormalWS = mul(inBinormalOS, (float3x3) g_mWorld); vNormalWS = normalize(vNormalWS); vTangentWS = normalize(vTangentWS); vBinormalWS = normalize(vBinormalWS); // 将光源方向转换成贴图表面的Tangent坐标，注意，右手坐标系转换 // 注意：在vs中进行normalize是没有意义的，因为ps中的值是插值结果 float3x3 mWorldToTangent = float3x3(vTangentWS, vBinormalWS, vNormalWS); outLightTS = mul(g_LightDir, mWorldToTangent); } void RenderBumpMapPS( float2 texCoord : TEXCOORD0, float3 lightTS : TEXCOORD1, out float4 color : COLOR ) { // 需要对插值结果重新normalize float3 vLightTS = normalize(lightTS); // 获得法线贴图的法线，转换到[-1, 1]空间之中 float3 vNormalTS = normalize(tex2D(samplerNormalTexture, texCoord) * 2.0f - 1.0f); // 获取原始贴图的颜色，这里要求原始贴图和发现贴图使用公用的uv float4 cBaseColor = tex2D(MeshTextureSampler, texCoord); // 输出颜色 color = cBaseColor * ((dot(vNormalTS, vLightTS)) * g_MaterialDiffuseColor) + g_MaterialAmbientColor; } //-------------------------------------------------------------------------------------- // Renders scene //-------------------------------------------------------------------------------------- technique RenderScene { pass P0 { VertexShader = compile vs_2_0 RenderBumpMapVS(); PixelShader = compile ps_2_0 RenderBumpMapPS(); } }
//-------------------------------------------------------------------------------------- // File: SimpleSample.cpp // // Copyright (c) Microsoft Corporation. All rights reserved. //-------------------------------------------------------------------------------------- #include "DXUT.h" #include "DXUTgui.h" #include "DXUTmisc.h" #include "DXUTCamera.h" #include "DXUTSettingsDlg.h" #include "SDKmisc.h" #include "SDKmesh.h" #include "resource.h" //#define DEBUG_VS // Uncomment this line to debug D3D9 vertex shaders //#define DEBUG_PS // Uncomment this line to debug D3D9 pixel shaders //-------------------------------------------------------------------------------------- // Global variables //-------------------------------------------------------------------------------------- CModelViewerCamera g_Camera; // A model viewing camera CDXUTDialogResourceManager g_DialogResourceManager; // manager for shared resources of dialogs CD3DSettingsDlg g_SettingsDlg; // Device settings dialog CDXUTTextHelper* g_pTxtHelper = NULL; CDXUTDialog g_HUD; // dialog for standard controls CDXUTDialog g_SampleUI; // dialog for sample specific controls // Direct3D 9 resources ID3DXFont* g_pFont9 = NULL; ID3DXSprite* g_pSprite9 = NULL; ID3DXEffect* g_pEffect9 = NULL; IDirect3DVertexDeclaration9* g_pVertDecl = NULL; // Vertex decl for the sample CDXUTXFileMesh g_Room; // Mesh representing room (wall, floor, ceiling) CDXUTXFileMesh g_Chair; // Mesh representing room (wall, floor, ceiling) LPDIRECT3DTEXTURE9 g_normalTexture = NULL; //-------------------------------------------------------------------------------------- // UI control IDs //-------------------------------------------------------------------------------------- #define IDC_TOGGLEFULLSCREEN 1 #define IDC_TOGGLEREF 2 #define IDC_CHANGEDEVICE 3 D3DVERTEXELEMENT9 g_aVertDecl[] = { { 0, 0, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_POSITION, 0 }, { 0, 12, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_NORMAL, 0 }, { 0, 24, D3DDECLTYPE_FLOAT2, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_TEXCOORD, 0 }, { 0, 32, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_TANGENT, 0 }, { 0, 44, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_BINORMAL, 0 }, D3DDECL_END() }; //-------------------------------------------------------------------------------------- // Forward declarations //-------------------------------------------------------------------------------------- LRESULT CALLBACK MsgProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, bool* pbNoFurtherProcessing, void* pUserContext ); void CALLBACK OnKeyboard( UINT nChar, bool bKeyDown, bool bAltDown, void* pUserContext ); void CALLBACK OnGUIEvent( UINT nEvent, int nControlID, CDXUTControl* pControl, void* pUserContext ); void CALLBACK OnFrameMove( double fTime, float fElapsedTime, void* pUserContext ); bool CALLBACK ModifyDeviceSettings( DXUTDeviceSettings* pDeviceSettings, void* pUserContext ); bool CALLBACK IsD3D9DeviceAcceptable( D3DCAPS9* pCaps, D3DFORMAT AdapterFormat, D3DFORMAT BackBufferFormat, bool bWindowed, void* pUserContext ); HRESULT CALLBACK OnD3D9CreateDevice( IDirect3DDevice9* pd3dDevice, const D3DSURFACE_DESC* pBackBufferSurfaceDesc, void* pUserContext ); HRESULT CALLBACK OnD3D9ResetDevice( IDirect3DDevice9* pd3dDevice, const D3DSURFACE_DESC* pBackBufferSurfaceDesc, void* pUserContext ); void CALLBACK OnD3D9FrameRender( IDirect3DDevice9* pd3dDevice, double fTime, float fElapsedTime, void* pUserContext ); void CALLBACK OnD3D9LostDevice( void* pUserContext ); void CALLBACK OnD3D9DestroyDevice( void* pUserContext ); void InitApp(); void RenderText(); HRESULT LoadMesh( IDirect3DDevice9* pd3dDevice, LPCWSTR wszName, CDXUTXFileMesh& Mesh ); //-------------------------------------------------------------------------------------- // Entry point to the program. Initializes everything and goes into a message processing // loop. Idle time is used to render the scene. //-------------------------------------------------------------------------------------- int WINAPI wWinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLine, int nCmdShow ) { // Enable run-time memory check for debug builds. #if defined(DEBUG) | defined(_DEBUG) _CrtSetDbgFlag( _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF ); #endif // DXUT will create and use the best device (either D3D9 or D3D10) // that is available on the system depending on which D3D callbacks are set below // Set DXUT callbacks DXUTSetCallbackMsgProc( MsgProc ); DXUTSetCallbackKeyboard( OnKeyboard ); DXUTSetCallbackFrameMove( OnFrameMove ); DXUTSetCallbackDeviceChanging( ModifyDeviceSettings ); DXUTSetCallbackD3D9DeviceAcceptable( IsD3D9DeviceAcceptable ); DXUTSetCallbackD3D9DeviceCreated( OnD3D9CreateDevice ); DXUTSetCallbackD3D9DeviceReset( OnD3D9ResetDevice ); DXUTSetCallbackD3D9DeviceLost( OnD3D9LostDevice ); DXUTSetCallbackD3D9DeviceDestroyed( OnD3D9DestroyDevice ); DXUTSetCallbackD3D9FrameRender( OnD3D9FrameRender ); InitApp(); DXUTInit( true, true, NULL ); // Parse the command line, show msgboxes on error, no extra command line params DXUTSetCursorSettings( true, true ); DXUTCreateWindow( L"SimpleSample" ); DXUTCreateDevice( true, 640, 480 ); DXUTMainLoop(); // Enter into the DXUT render loop return DXUTGetExitCode(); } //-------------------------------------------------------------------------------------- // Initialize the app //-------------------------------------------------------------------------------------- void InitApp() { g_SettingsDlg.Init( &g_DialogResourceManager ); g_HUD.Init( &g_DialogResourceManager ); g_SampleUI.Init( &g_DialogResourceManager ); g_HUD.SetCallback( OnGUIEvent ); int iY = 10; g_HUD.AddButton( IDC_TOGGLEFULLSCREEN, L"Toggle full screen", 35, iY, 125, 22 ); g_HUD.AddButton( IDC_TOGGLEREF, L"Toggle REF (F3)", 35, iY += 24, 125, 22, VK_F3 ); g_HUD.AddButton( IDC_CHANGEDEVICE, L"Change device (F2)", 35, iY += 24, 125, 22, VK_F2 ); g_SampleUI.SetCallback( OnGUIEvent ); iY = 10; } //-------------------------------------------------------------------------------------- // Render the help and statistics text. This function uses the ID3DXFont interface for // efficient text rendering. //-------------------------------------------------------------------------------------- void RenderText() { g_pTxtHelper->Begin(); g_pTxtHelper->SetInsertionPos( 5, 5 ); g_pTxtHelper->SetForegroundColor( D3DXCOLOR( 1.0f, 1.0f, 0.0f, 1.0f ) ); g_pTxtHelper->DrawTextLine( DXUTGetFrameStats( DXUTIsVsyncEnabled() ) ); g_pTxtHelper->DrawTextLine( DXUTGetDeviceStats() ); g_pTxtHelper->End(); } //-------------------------------------------------------------------------------------- // Rejects any D3D9 devices that aren't acceptable to the app by returning false //-------------------------------------------------------------------------------------- bool CALLBACK IsD3D9DeviceAcceptable( D3DCAPS9* pCaps, D3DFORMAT AdapterFormat, D3DFORMAT BackBufferFormat, bool bWindowed, void* pUserContext ) { // Skip backbuffer formats that don't support alpha blending IDirect3D9* pD3D = DXUTGetD3D9Object(); if( FAILED( pD3D->CheckDeviceFormat( pCaps->AdapterOrdinal, pCaps->DeviceType, AdapterFormat, D3DUSAGE_QUERY_POSTPIXELSHADER_BLENDING, D3DRTYPE_TEXTURE, BackBufferFormat ) ) ) return false; // No fallback defined by this app, so reject any device that // doesn't support at least ps2.0 if( pCaps->PixelShaderVersion < D3DPS_VERSION( 2, 0 ) ) return false; return true; } //-------------------------------------------------------------------------------------- // Called right before creating a D3D9 or D3D10 device, allowing the app to modify the device settings as needed //-------------------------------------------------------------------------------------- bool CALLBACK ModifyDeviceSettings( DXUTDeviceSettings* pDeviceSettings, void* pUserContext ) { if( pDeviceSettings->ver == DXUT_D3D9_DEVICE ) { IDirect3D9* pD3D = DXUTGetD3D9Object(); D3DCAPS9 Caps; pD3D->GetDeviceCaps( pDeviceSettings->d3d9.AdapterOrdinal, pDeviceSettings->d3d9.DeviceType, &Caps ); // If device doesn't support HW T&L or doesn't support 1.1 vertex shaders in HW // then switch to SWVP. if( ( Caps.DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT ) == 0 || Caps.VertexShaderVersion < D3DVS_VERSION( 1, 1 ) ) { pDeviceSettings->d3d9.BehaviorFlags = D3DCREATE_SOFTWARE_VERTEXPROCESSING; } // Debugging vertex shaders requires either REF or software vertex processing // and debugging pixel shaders requires REF. #ifdef DEBUG_VS if( pDeviceSettings->d3d9.DeviceType != D3DDEVTYPE_REF ) { pDeviceSettings->d3d9.BehaviorFlags &= ~D3DCREATE_HARDWARE_VERTEXPROCESSING; pDeviceSettings->d3d9.BehaviorFlags &= ~D3DCREATE_PUREDEVICE; pDeviceSettings->d3d9.BehaviorFlags |= D3DCREATE_SOFTWARE_VERTEXPROCESSING; } #endif #ifdef DEBUG_PS pDeviceSettings->d3d9.DeviceType = D3DDEVTYPE_REF; #endif } // For the first device created if its a REF device, optionally display a warning dialog box static bool s_bFirstTime = true; if( s_bFirstTime ) { s_bFirstTime = false; if( ( DXUT_D3D9_DEVICE == pDeviceSettings->ver && pDeviceSettings->d3d9.DeviceType == D3DDEVTYPE_REF ) || ( DXUT_D3D10_DEVICE == pDeviceSettings->ver && pDeviceSettings->d3d10.DriverType == D3D10_DRIVER_TYPE_REFERENCE ) ) DXUTDisplaySwitchingToREFWarning( pDeviceSettings->ver ); } return true; } //-------------------------------------------------------------------------------------- // Create any D3D9 resources that will live through a device reset (D3DPOOL_MANAGED) // and aren't tied to the back buffer size //-------------------------------------------------------------------------------------- HRESULT CALLBACK OnD3D9CreateDevice( IDirect3DDevice9* pd3dDevice, const D3DSURFACE_DESC* pBackBufferSurfaceDesc, void* pUserContext ) { HRESULT hr; V_RETURN( g_DialogResourceManager.OnD3D9CreateDevice( pd3dDevice ) ); V_RETURN( g_SettingsDlg.OnD3D9CreateDevice( pd3dDevice ) ); V_RETURN( D3DXCreateFont( pd3dDevice, 15, 0, FW_BOLD, 1, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE, L"Arial", &g_pFont9 ) ); // Read the D3DX effect file WCHAR str[MAX_PATH]; DWORD dwShaderFlags = D3DXFX_NOT_CLONEABLE; #ifdef DEBUG_VS dwShaderFlags |= D3DXSHADER_FORCE_VS_SOFTWARE_NOOPT; #endif #ifdef DEBUG_PS dwShaderFlags |= D3DXSHADER_FORCE_PS_SOFTWARE_NOOPT; #endif #ifdef D3DXFX_LARGEADDRESS_HANDLE dwShaderFlags |= D3DXFX_LARGEADDRESSAWARE; #endif LPD3DXBUFFER error; D3DXCreateBuffer(256, &error); V_RETURN( DXUTFindDXSDKMediaFileCch( str, MAX_PATH, L"SimpleSample.fx" ) ); ( D3DXCreateEffectFromFile( pd3dDevice, str, NULL, NULL, dwShaderFlags, NULL, &g_pEffect9, &error ) ); if(error) { OutputDebugStringA((const char*)error->GetBufferPointer()); } /* set mtrl ambient and diffuse, to test ambient, diffuse is disable */ D3DXCOLOR colorMtrlDiffuse(0.5f, 0.5f, 0.5f, 1.0f); D3DXCOLOR colorMtrlAmbient(0.4f, 0.4f, 0.4f, 1.0f); D3DXCOLOR colorLightAmbient(1.0f, 1.0f, 1.0f, 1.0f); D3DXCOLOR colorLightDiffuse(1.0f, 1.0f, 1.0f, 1.0f); D3DXVECTOR3 lightDir(0.0f, 1.0f, 0.2f); V_RETURN( g_pEffect9->SetValue( "g_MaterialAmbientColor", &colorMtrlAmbient, sizeof( D3DXCOLOR ) ) ); V_RETURN( g_pEffect9->SetValue( "g_MaterialDiffuseColor", &colorMtrlDiffuse, sizeof( D3DXCOLOR ) ) ); V_RETURN( g_pEffect9->SetValue( "g_LightAmbient", &colorLightAmbient, sizeof( D3DXCOLOR ) ) ); V_RETURN( g_pEffect9->SetValue( "g_LightDiffuse", &colorLightDiffuse, sizeof( D3DXCOLOR ) ) ); V_RETURN( g_pEffect9->SetValue( "g_LightDir", &lightDir, sizeof( D3DXVECTOR3 ) ) ); V_RETURN( D3DXCreateTextureFromFile(pd3dDevice, L"normal_map.jpg", &g_normalTexture)); V_RETURN( g_pEffect9->SetTexture( "g_NormalTexture", g_normalTexture ) ); V_RETURN( pd3dDevice->CreateVertexDeclaration( g_aVertDecl, &g_pVertDecl ) ); /* load room mesh */ if( FAILED( LoadMesh( pd3dDevice, L"ChairScene\\room.x", g_Room ) ) ) return DXUTERR_MEDIANOTFOUND; if( FAILED( LoadMesh( pd3dDevice, L"ChairScene\\chair.x", g_Chair ) ) ) return DXUTERR_MEDIANOTFOUND; // Setup the camera's view parameters D3DXVECTOR3 vecEye( 0.0f, 8.0f, -20.0f ); D3DXVECTOR3 vecAt ( 0.0f, 0.0f, -0.0f ); g_Camera.SetViewParams( &vecEye, &vecAt ); return S_OK; } //-------------------------------------------------------------------------------------- // Create any D3D9 resources that won't live through a device reset (D3DPOOL_DEFAULT) // or that are tied to the back buffer size //-------------------------------------------------------------------------------------- HRESULT CALLBACK OnD3D9ResetDevice( IDirect3DDevice9* pd3dDevice, const D3DSURFACE_DESC* pBackBufferSurfaceDesc, void* pUserContext ) { HRESULT hr; V_RETURN( g_DialogResourceManager.OnD3D9ResetDevice() ); V_RETURN( g_SettingsDlg.OnD3D9ResetDevice() ); if( g_pFont9 ) V_RETURN( g_pFont9->OnResetDevice() ); if( g_pEffect9 ) V_RETURN( g_pEffect9->OnResetDevice() ); g_Room.RestoreDeviceObjects( pd3dDevice ); g_Chair.RestoreDeviceObjects(pd3dDevice); V_RETURN( D3DXCreateSprite( pd3dDevice, &g_pSprite9 ) ); g_pTxtHelper = new CDXUTTextHelper( g_pFont9, g_pSprite9, NULL, NULL, 15 ); // Setup the camera's projection parameters float fAspectRatio = pBackBufferSurfaceDesc->Width / ( FLOAT )pBackBufferSurfaceDesc->Height; g_Camera.SetProjParams( D3DX_PI / 4, fAspectRatio, 0.1f, 1000.0f ); g_Camera.SetWindow( pBackBufferSurfaceDesc->Width, pBackBufferSurfaceDesc->Height ); g_HUD.SetLocation( pBackBufferSurfaceDesc->Width - 170, 0 ); g_HUD.SetSize( 170, 170 ); g_SampleUI.SetLocation( pBackBufferSurfaceDesc->Width - 170, pBackBufferSurfaceDesc->Height - 350 ); g_SampleUI.SetSize( 170, 300 ); return S_OK; } //-------------------------------------------------------------------------------------- // Handle updates to the scene. This is called regardless of which D3D API is used //-------------------------------------------------------------------------------------- void CALLBACK OnFrameMove( double fTime, float fElapsedTime, void* pUserContext ) { // Update the camera's position based on user input g_Camera.FrameMove( fElapsedTime ); } //-------------------------------------------------------------------------------------- // Render the scene using the D3D9 device //-------------------------------------------------------------------------------------- void CALLBACK OnD3D9FrameRender( IDirect3DDevice9* pd3dDevice, double fTime, float fElapsedTime, void* pUserContext ) { HRESULT hr; D3DXMATRIXA16 mWorld; D3DXMATRIXA16 mView; D3DXMATRIXA16 mProj; D3DXMATRIXA16 mWorldViewProjection; // If the settings dialog is being shown, then render it instead of rendering the app's scene if( g_SettingsDlg.IsActive() ) { g_SettingsDlg.OnRender( fElapsedTime ); return; } // Clear the render target and the zbuffer V( pd3dDevice->Clear( 0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, D3DCOLOR_ARGB( 0, 45, 50, 170 ), 1.0f, 0 ) ); // Render the scene if( SUCCEEDED( pd3dDevice->BeginScene() ) ) { // Get the projection & view matrix from the camera class mWorld = *g_Camera.GetWorldMatrix(); mProj = *g_Camera.GetProjMatrix(); mView = *g_Camera.GetViewMatrix(); mWorldViewProjection = mWorld * mView * mProj; // Update the effect's variables. Instead of using strings, it would // be more efficient to cache a handle to the parameter by calling // ID3DXEffect::GetParameterByName V( g_pEffect9->SetMatrix( "g_mWorldViewProjection", &mWorldViewProjection ) ); V( g_pEffect9->SetMatrix( "g_mWorld", &mWorld ) ); V( g_pEffect9->SetFloat( "g_fTime", ( float )fTime ) ); /* render room */ UINT p, cPass; V( g_pEffect9->SetTechnique( "RenderScene" ) ); V( g_pEffect9->Begin( &cPass, 0 ) ); for(p = 0; p < cPass; ++p) { LPD3DXMESH pMeshObj; V( g_pEffect9->BeginPass(p)); pMeshObj = g_Room.GetMesh(); for(DWORD m = 0; m < g_Room.m_dwNumMaterials; ++m) { V( g_pEffect9->SetTexture( "g_MeshTexture", g_Room.m_pTextures[m] ) ); V( g_pEffect9->CommitChanges() ); V( pMeshObj->DrawSubset( m ) ); } } V( g_pEffect9->End() ); V( g_pEffect9->SetTechnique( "RenderScene" ) ); V( g_pEffect9->Begin( &cPass, 0 ) ); for(p = 0; p < cPass; ++p) { LPD3DXMESH pMeshObj; V( g_pEffect9->BeginPass(p)); pMeshObj = g_Chair.GetMesh(); for(DWORD m = 0; m < g_Chair.m_dwNumMaterials; ++m) { V( g_pEffect9->SetTexture( "g_MeshTexture", g_Room.m_pTextures[m] ) ); V( g_pEffect9->CommitChanges() ); V( pMeshObj->DrawSubset( m ) ); } } V( g_pEffect9->End() ); DXUT_BeginPerfEvent( DXUT_PERFEVENTCOLOR, L"HUD / Stats" ); // These events are to help PIX identify what the code is doing RenderText(); V( g_HUD.OnRender( fElapsedTime ) ); V( g_SampleUI.OnRender( fElapsedTime ) ); DXUT_EndPerfEvent(); V( pd3dDevice->EndScene() ); } } //-------------------------------------------------------------------------------------- // Handle messages to the application //-------------------------------------------------------------------------------------- LRESULT CALLBACK MsgProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, bool* pbNoFurtherProcessing, void* pUserContext ) { // Pass messages to dialog resource manager calls so GUI state is updated correctly *pbNoFurtherProcessing = g_DialogResourceManager.MsgProc( hWnd, uMsg, wParam, lParam ); if( *pbNoFurtherProcessing ) return 0; // Pass messages to settings dialog if its active if( g_SettingsDlg.IsActive() ) { g_SettingsDlg.MsgProc( hWnd, uMsg, wParam, lParam ); return 0; } // Give the dialogs a chance to handle the message first *pbNoFurtherProcessing = g_HUD.MsgProc( hWnd, uMsg, wParam, lParam ); if( *pbNoFurtherProcessing ) return 0; *pbNoFurtherProcessing = g_SampleUI.MsgProc( hWnd, uMsg, wParam, lParam ); if( *pbNoFurtherProcessing ) return 0; // Pass all remaining windows messages to camera so it can respond to user input g_Camera.HandleMessages( hWnd, uMsg, wParam, lParam ); return 0; } //-------------------------------------------------------------------------------------- // Handle key presses //-------------------------------------------------------------------------------------- void CALLBACK OnKeyboard( UINT nChar, bool bKeyDown, bool bAltDown, void* pUserContext ) { } //-------------------------------------------------------------------------------------- // Handles the GUI events //-------------------------------------------------------------------------------------- void CALLBACK OnGUIEvent( UINT nEvent, int nControlID, CDXUTControl* pControl, void* pUserContext ) { switch( nControlID ) { case IDC_TOGGLEFULLSCREEN: DXUTToggleFullScreen(); break; case IDC_TOGGLEREF: DXUTToggleREF(); break; case IDC_CHANGEDEVICE: g_SettingsDlg.SetActive( !g_SettingsDlg.IsActive() ); break; } } //-------------------------------------------------------------------------------------- // Release D3D9 resources created in the OnD3D9ResetDevice callback //-------------------------------------------------------------------------------------- void CALLBACK OnD3D9LostDevice( void* pUserContext ) { g_DialogResourceManager.OnD3D9LostDevice(); g_SettingsDlg.OnD3D9LostDevice(); if( g_pFont9 ) g_pFont9->OnLostDevice(); if( g_pEffect9 ) g_pEffect9->OnLostDevice(); SAFE_RELEASE( g_pSprite9 ); SAFE_DELETE( g_pTxtHelper ); SAFE_RELEASE( g_pVertDecl ); } //-------------------------------------------------------------------------------------- // Release D3D9 resources created in the OnD3D9CreateDevice callback //-------------------------------------------------------------------------------------- void CALLBACK OnD3D9DestroyDevice( void* pUserContext ) { g_DialogResourceManager.OnD3D9DestroyDevice(); g_SettingsDlg.OnD3D9DestroyDevice(); SAFE_RELEASE( g_pEffect9 ); SAFE_RELEASE( g_pFont9 ); SAFE_RELEASE( g_pVertDecl ); g_Room.Destroy(); g_Chair.Destroy(); } HRESULT LoadMesh( IDirect3DDevice9* pd3dDevice, LPCWSTR wszName, CDXUTXFileMesh& Mesh ) { HRESULT hr; if( FAILED( hr = Mesh.Create( pd3dDevice, wszName ) ) ) return hr; hr = Mesh.SetVertexDecl( pd3dDevice, g_aVertDecl ); return hr; }
其中修改了一下SDKMesh.cpp, line 2373
hr = D3DXComputeTangentFrameEx( m_pMesh, D3DDECLUSAGE_TEXCOORD, 0, D3DDECLUSAGE_TANGENT, 0, D3DDECLUSAGE_BINORMAL, 0, D3DDECLUSAGE_NORMAL, 0, 0, rgdwAdjacency, fPartialEdgeThreshold, fSingularPointThreshold, fNormalEdgeThreshold, &pNewMesh, NULL );