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抛光的不锈钢茶壶



HLSLCubeMapping.fx

//--------------------------------------------------------------
// Desc: 效果文件
//--------------------------------------------------------------

//--------------------------------------------------------------
// 全局变量
//--------------------------------------------------------------
float4x4 matWorldViewProj;    
float4x4 matWorld;    
float4x4 matView;    
float4   vecEye;


//---------------------------------------------------------------
// 立方体纹理采样器
//---------------------------------------------------------------
texture CubeMap;
samplerCUBE CubeMapSampler 
= sampler_state
{
   Texture 
= <CubeMap>;
   MinFilter 
= Linear;
   MagFilter 
= Linear;
   AddressU  
= Wrap;
   AddressV  
= Wrap;
};


//--------------------------------------------------------------
//顶点渲染器输出结构
//--------------------------------------------------------------
struct VS_OUTPUT
{
    float4 Pos  : POSITION;
    float3 Reflect: TEXCOORD4;    
};

//-------------------------------------------------------------
// 顶点渲染器主函数
//-------------------------------------------------------------
VS_OUTPUT VS(float4 Pos : POSITION, float2 Tex : TEXCOORD, float3 Normal : NORMAL)
{
    VS_OUTPUT Out 
= (VS_OUTPUT)0;  
    
    
//坐标变换    
    Out.Pos = mul(Pos, matWorldViewProj);
    
    
//计算世界空间中的顶点法线并标准化
    float3 Norm = normalize(mul(Normal, matWorld));
   
    
//计算从顶点指向观察点的方向向量并标准化
    float3 PosWorld  = normalize(mul(Pos, matWorld));
    float3 Incident 
= normalize(PosWorld - vecEye);
    
    
//计算立方体映射的反射向量
    Out.Reflect = normalize(reflect(Incident, Norm));
    
    
return Out;
}



//-------------------------------------------------------------
// 像素渲染器主函数
//-------------------------------------------------------------
float4 PS(VS_OUTPUT In) : COLOR
{
    
return texCUBE(CubeMapSampler, In.Reflect);    
}


//-------------------------------------------------------------
// 技术 
//-------------------------------------------------------------
technique TShader
{
    pass P0
    {
        VertexShader 
= compile vs_2_0 VS();
        PixelShader  
= compile ps_2_0 PS();
    }
}








//=============================================================================
// Desc: 主程序源文件
//=============================================================================
#include "dxstdafx.h"
#include "resource.h"

//#define DEBUG_VS   // Uncomment this line to debug vertex shaders 
//#define DEBUG_PS   // Uncomment this line to debug pixel shaders 

//-----------------------------------------------------------------------------
// 全局变量
//-----------------------------------------------------------------------------
ID3DXFont*                 g_pFont = NULL;          //ID3DXFont字体对象
ID3DXSprite*               g_pTextSprite = NULL;    //ID3DXSprite文本精灵对象
bool                       g_bShowHelp = true;      //标识是否显示简单说明文本

CDXUTDialogResourceManager g_DialogResourceManager; 
//对话框资源管理器
CD3DSettingsDlg            g_SettingsDlg;           //Direct3D设备设置对话框
CDXUTDialog                g_HUD;                   //对话框
CDXUTDialog                g_SampleUI;              //对话框

CDXUTMesh*                g_pLobbyMesh    = NULL;   
//大厅网格模型
LPD3DXMESH                g_pTeapotMesh   = NULL;   //茶壶网格模型
LPD3DXEFFECT              g_pEffect       = NULL;   //效果
LPDIRECT3DCUBETEXTURE9      g_pCubeMap;               //立方体纹理
D3DXVECTOR3               g_vEyePos;
D3DXMATRIXA16             g_matProject;
D3DXMATRIXA16             g_matView;
D3DXMATRIXA16             g_matWorld;


//-----------------------------------------------------------------------------
// 控件ID
//-----------------------------------------------------------------------------
#define IDC_TOGGLEFULLSCREEN      1
#define IDC_TOGGLEREF             2
#define IDC_CHANGEDEVICE          3


//-----------------------------------------------------------------------------
// Desc: 函数声明
//------------------------------------------------------------------------------
bool    CALLBACK IsDeviceAcceptable( D3DCAPS9* pCaps, D3DFORMAT AdapterFormat, D3DFORMAT BackBufferFormat, bool bWindowed, void* pUserContext );
bool    CALLBACK ModifyDeviceSettings( DXUTDeviceSettings* pDeviceSettings, const D3DCAPS9* pCaps, void* pUserContext );
HRESULT CALLBACK OnCreateDevice( IDirect3DDevice9* pd3dDevice, 
const D3DSURFACE_DESC* pBackBufferSurfaceDesc, void* pUserContext );
HRESULT CALLBACK OnResetDevice( IDirect3DDevice9* pd3dDevice, 
const D3DSURFACE_DESC* pBackBufferSurfaceDesc, void* pUserContext );
void    CALLBACK OnFrameMove( IDirect3DDevice9* pd3dDevice, double fTime, float fElapsedTime, void* pUserContext );
void    CALLBACK OnFrameRender( IDirect3DDevice9* pd3dDevice, double fTime, float fElapsedTime, void* pUserContext );
LRESULT CALLBACK MsgProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, 
bool* pbNoFurtherProcessing, void* pUserContext );
void    CALLBACK KeyboardProc( UINT nChar, bool bKeyDown, bool bAltDown, void* pUserContext );
void    CALLBACK OnGUIEvent( UINT nEvent, int nControlID, CDXUTControl* pControl, void* pUserContext );
void    CALLBACK OnLostDevice( void* pUserContext );
void    CALLBACK OnDestroyDevice( void* pUserContext );

void    InitApp();
void    RenderText();


//-----------------------------------------------------------------------------
// Desc: 入口函数
//-----------------------------------------------------------------------------
INT WINAPI WinMain( HINSTANCE, HINSTANCE, LPSTR, int )
{
    
//为Debug配置启用运行时内存检查功能
#if defined(DEBUG) | defined(_DEBUG)
    _CrtSetDbgFlag( _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF );
#endif

    
//设置回调函数
    DXUTSetCallbackDeviceCreated( OnCreateDevice );
    DXUTSetCallbackDeviceReset( OnResetDevice );
    DXUTSetCallbackDeviceLost( OnLostDevice );
    DXUTSetCallbackDeviceDestroyed( OnDestroyDevice );
    DXUTSetCallbackMsgProc( MsgProc );
    DXUTSetCallbackKeyboard( KeyboardProc );
    DXUTSetCallbackFrameRender( OnFrameRender );
    DXUTSetCallbackFrameMove( OnFrameMove );

    
//应用程序相关的初始化
    InitApp();

    
//初始化DXUT, 创建窗口, 创建Direct3D设备对象
    DXUTInit( truetruetrue );
    DXUTSetCursorSettings( 
truetrue );
    DXUTCreateWindow( L"HLSLCubeMapping" );
    DXUTCreateDevice( D3DADAPTER_DEFAULT, 
true, 640, 480, 
        IsDeviceAcceptable, ModifyDeviceSettings );

    
//进入消息循环和场景渲染
    DXUTMainLoop();

    
//在此进行应用程序相关的清除工作

    
return DXUTGetExitCode();
}


//-----------------------------------------------------------------------------
// Desc: 应用程序相关初始化
//-----------------------------------------------------------------------------
void InitApp()
{
    
//初始化对话框
    g_SettingsDlg.Init( &g_DialogResourceManager );
    g_HUD.Init( &g_DialogResourceManager );
    g_SampleUI.Init( &g_DialogResourceManager );

    
//为g_HUD对话框设置消息处理函数,添加控件
    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 );
    g_HUD.AddButton( IDC_CHANGEDEVICE, L"Change device (F2)", 35, iY += 24, 125, 22, VK_F2 );
}


//-----------------------------------------------------------------------------
// Desc: 设备能力检查
//-----------------------------------------------------------------------------
bool CALLBACK IsDeviceAcceptable( D3DCAPS9* pCaps, D3DFORMAT AdapterFormat, 
                                  D3DFORMAT BackBufferFormat, 
bool bWindowed, 
                                  
void* pUserContext )
{
    
//如果不支持Alpha混合则忽略后台缓冲区格式
    IDirect3D9* pD3D = DXUTGetD3DObject(); 
    
if( FAILED( pD3D->CheckDeviceFormat( pCaps->AdapterOrdinal, pCaps->DeviceType,
                    AdapterFormat, D3DUSAGE_QUERY_POSTPIXELSHADER_BLENDING, 
                    D3DRTYPE_TEXTURE, BackBufferFormat ) ) )
        
return false;

    
//检查顶点渲染器
    if( pCaps->VertexShaderVersion < D3DVS_VERSION(2,0) )
        
return FALSE;

    
//检查像素渲染器
    if( pCaps->PixelShaderVersion < D3DPS_VERSION(2,0) )
        
return FALSE;

    
return true;
}


//-----------------------------------------------------------------------------
// Desc: 修改Direct3D渲染设备设置
//-----------------------------------------------------------------------------
bool CALLBACK ModifyDeviceSettings( DXUTDeviceSettings* pDeviceSettings, 
                                    
const D3DCAPS9* pCaps, void* pUserContext )
{
    
//检查后台缓冲区格式是否支持Alpha混合等操作(post pixel blending operations)
    if( (pCaps->DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT) == 0)
    {
        pDeviceSettings->BehaviorFlags = D3DCREATE_SOFTWARE_VERTEXPROCESSING;
    }

    
//如果使用参考设备,则弹出警告对话框
    static bool s_bFirstTime = true;
    
if( s_bFirstTime )
    {
        s_bFirstTime = 
false;
        
if( pDeviceSettings->DeviceType == D3DDEVTYPE_REF )
            DXUTDisplaySwitchingToREFWarning();
    }

    
//调试顶点渲染器需要参考设备或软件顶点处理
#ifdef DEBUG_VS
    
if( pDeviceSettings->DeviceType != D3DDEVTYPE_REF )
    {
        pDeviceSettings->BehaviorFlags &= ~D3DCREATE_HARDWARE_VERTEXPROCESSING;
        pDeviceSettings->BehaviorFlags &= ~D3DCREATE_PUREDEVICE;                            
        pDeviceSettings->BehaviorFlags |= D3DCREATE_SOFTWARE_VERTEXPROCESSING;
    }
#endif

    
//调试像素渲染器需要参考设备
#ifdef DEBUG_PS
    pDeviceSettings->DeviceType = D3DDEVTYPE_REF;
#endif

    
return true;
}


//-----------------------------------------------------------------------------
// Desc: 在此创建管理内存资源对象
//-----------------------------------------------------------------------------
HRESULT CALLBACK OnCreateDevice( IDirect3DDevice9* pd3dDevice, 
                                
const D3DSURFACE_DESC* pBackBufferSurfaceDesc, 
                                
void* pUserContext )
{
    HRESULT hr;

    V_RETURN( g_DialogResourceManager.OnCreateDevice( pd3dDevice ) );
    V_RETURN( g_SettingsDlg.OnCreateDevice( pd3dDevice ) );
    
    
//创建字体
    V_RETURN( D3DXCreateFont( pd3dDevice, 15, 0, FW_BOLD, 1, FALSE, DEFAULT_CHARSET, 
                         OUT_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE, 
                         L"Arial", &g_pFont ) );

    
//创建大厅网格模型
    g_pLobbyMesh = new CDXUTMesh();
    g_pLobbyMesh->Create(pd3dDevice, L"lobby.x");

    
//加载茶壶
    V_RETURN( D3DXLoadMeshFromX( L"teapot.x", D3DXMESH_MANAGED,    pd3dDevice, 
                                 NULL, NULL, NULL, NULL, &g_pTeapotMesh ) );

    
//创建立方体贴图
    V_RETURN( D3DXCreateCubeTextureFromFile( pd3dDevice, L"LobbyCube.dds", &g_pCubeMap ) );
    

    
//创建效果
    V_RETURN( D3DXCreateEffectFromFile( pd3dDevice, L"HLSLCubeMapping.fx", NULL, NULL, 
        D3DXSHADER_DEBUG, NULL, &g_pEffect, NULL ) );

    
//为效果设置立方体纹理
    g_pEffect->SetTexture("CubeMap", g_pCubeMap);

    
return S_OK;
}


//-----------------------------------------------------------------------------
// Desc: 在此创建默认内存类型资源对象
//-----------------------------------------------------------------------------
HRESULT CALLBACK OnResetDevice( IDirect3DDevice9* pd3dDevice, 
                                
const D3DSURFACE_DESC* pBackBufferSurfaceDesc, 
                                
void* pUserContext )
{
    HRESULT hr;

    V_RETURN( g_DialogResourceManager.OnResetDevice() );
    V_RETURN( g_SettingsDlg.OnResetDevice() );

    
//设置对话框位置和尺寸
    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 );

    
//恢复字体
    if( g_pFont )
        V_RETURN( g_pFont->OnResetDevice() );
   
    
//创建ID3DXSprite接口对象
    V_RETURN( D3DXCreateSprite( pd3dDevice, &g_pTextSprite ) );

    
//恢复效果
    if(g_pEffect != NULL)
        g_pEffect->OnResetDevice();

    
//构造并设置世界矩阵
    D3DXMatrixIdentity(&g_matWorld);
    pd3dDevice->SetTransform( D3DTS_WORLD, &g_matWorld );

    
//构造并设置投影矩阵
    float fAspectRatio = (float)pBackBufferSurfaceDesc->Width / pBackBufferSurfaceDesc->Height;
    D3DXMatrixPerspectiveFovLH(&g_matProject, D3DX_PI / 4, fAspectRatio, 1.0f, 100.0f);
    pd3dDevice->SetTransform( D3DTS_PROJECTION, &g_matProject );

    pd3dDevice->SetTextureStageState( 0, D3DTSS_COLORARG1, D3DTA_TEXTURE );
    pd3dDevice->SetTextureStageState( 0, D3DTSS_COLOROP,   D3DTOP_SELECTARG1 );

    
return S_OK;
}


//-----------------------------------------------------------------------------
// Desc: 更新场景
//-----------------------------------------------------------------------------
void CALLBACK OnFrameMove( IDirect3DDevice9* pd3dDevice, double fTime, 
                           
float fElapsedTime, void* pUserContext )
{
    
//构造并设置观察矩阵
    float angle = (float)fTime / 2.0f;
    g_vEyePos = D3DXVECTOR3(3.0f * sin(angle), 0.0f, 3.0f * cos(angle));
    D3DXVECTOR3 vLookatPt( 0.0f, 0.0f, 0.0f );
    D3DXVECTOR3 vUpVec( 0.0f, 1.0f, 0.0f );
    D3DXMatrixLookAtLH( &g_matView, &g_vEyePos, &vLookatPt, &vUpVec );
    pd3dDevice->SetTransform( D3DTS_VIEW, &g_matView );
    
    
//构造组合矩阵
    D3DXMATRIX mWorldViewProj;
    mWorldViewProj = g_matWorld * g_matView * g_matProject;

    
//设置效果参数
    g_pEffect->SetMatrix( "matWorldViewProj", &mWorldViewProj );
    g_pEffect->SetMatrix( "matWorld", &g_matWorld);
    g_pEffect->SetMatrix( "matView", &g_matView);
    D3DXVECTOR4 vEyePos = D3DXVECTOR4(g_vEyePos.x, g_vEyePos.y, g_vEyePos.z, 0.0f);
    g_pEffect->SetVector( "vecEye", &vEyePos);
}


//-----------------------------------------------------------------------------
// Desc: 渲染场景
//-----------------------------------------------------------------------------
void CALLBACK OnFrameRender( IDirect3DDevice9* pd3dDevice, double fTime, 
                            
float fElapsedTime, void* pUserContext )
{
    HRESULT hr;
  
    
//如果正在利用Direct3D设备设置对话框进行设置, 则不渲染场景
    if( g_SettingsDlg.IsActive() )
    {
        g_SettingsDlg.OnRender( fElapsedTime );
        
return;
    }

    
//清除后台颜色缓冲区和深度缓冲区
    V( pd3dDevice->Clear(0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, 
                         D3DCOLOR_ARGB(0, 45, 50, 170), 1.0f, 0) );

    
//渲染场景
    if( SUCCEEDED( pd3dDevice->BeginScene() ) )
    {
        
//渲染大厅网格模型
        g_pLobbyMesh->Render(pd3dDevice);
    
        
//使用效果渲染茶壶模型
        UINT nPasses;
        
if( g_pEffect != NULL )
        {
            g_pEffect->Begin( &nPasses, 0 );

            
for( UINT iPass = 0; iPass < nPasses; iPass ++ )
            {
                g_pEffect->BeginPass( iPass );
                g_pTeapotMesh->DrawSubset( 0 );
                g_pEffect->EndPass();
            }
            g_pEffect->End();
        }

        
//渲染文本和控件
        DXUT_BeginPerfEvent( DXUT_PERFEVENTCOLOR, L"HUD / Stats" ); 
        RenderText();
        V( g_HUD.OnRender( fElapsedTime ) );
        V( g_SampleUI.OnRender( fElapsedTime ) );
        DXUT_EndPerfEvent();

        V( pd3dDevice->EndScene() );
    }
}


//-----------------------------------------------------------------------------
// Desc: 渲染文本
//-----------------------------------------------------------------------------
void RenderText()
{
    CDXUTTextHelper txtHelper( g_pFont, g_pTextSprite, 15 );

    
//显示当前Direct3D设备状态和渲染帧速率
    txtHelper.Begin();
    txtHelper.SetInsertionPos( 5, 5 );
    txtHelper.SetForegroundColor( D3DXCOLOR( 1.0f, 1.0f, 0.0f, 1.0f ) );
    txtHelper.DrawTextLine( DXUTGetFrameStats(
true) );
    txtHelper.DrawTextLine( DXUTGetDeviceStats() );

    
//显示其他简要信息
    txtHelper.SetForegroundColor( D3DXCOLOR( 1.0f, 1.0f, 1.0f, 1.0f ) );
    txtHelper.DrawTextLine( L"通过HLSL编程实现立方体环境映射" );
    
    
//显示简单帮助文本
    const D3DSURFACE_DESC* pd3dsdBackBuffer = DXUTGetBackBufferSurfaceDesc();
    
if( g_bShowHelp )
    {
        txtHelper.SetInsertionPos( 10, pd3dsdBackBuffer->Height-15*6 );
        txtHelper.SetForegroundColor( D3DXCOLOR( 1.0f, 0.75f, 0.0f, 1.0f ) );
        txtHelper.DrawTextLine( L"Controls (F1 to hide):" );

        txtHelper.SetInsertionPos( 40, pd3dsdBackBuffer->Height-15*5 );
        txtHelper.DrawTextLine( L"Quit: ESC" );
    }
    
else
    {
        txtHelper.SetInsertionPos( 10, pd3dsdBackBuffer->Height-15*2 );
        txtHelper.SetForegroundColor( D3DXCOLOR( 1.0f, 1.0f, 1.0f, 1.0f ) );
        txtHelper.DrawTextLine( L"Press F1 for help" );
    }
    txtHelper.End();
}


//-----------------------------------------------------------------------------
// Desc: 消息处理
//-----------------------------------------------------------------------------
LRESULT CALLBACK MsgProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, 
                         
bool* pbNoFurtherProcessing, void* pUserContext )
{
    *pbNoFurtherProcessing = g_DialogResourceManager.MsgProc( hWnd, uMsg, wParam, lParam );
    
if( *pbNoFurtherProcessing )
        
return 0;

    
if( g_SettingsDlg.IsActive() )
    {
        g_SettingsDlg.MsgProc( hWnd, uMsg, wParam, lParam );
        
return 0;
    }

    *pbNoFurtherProcessing = g_HUD.MsgProc( hWnd, uMsg, wParam, lParam );
    
if( *pbNoFurtherProcessing )
        
return 0;
   
    *pbNoFurtherProcessing = g_SampleUI.MsgProc( hWnd, uMsg, wParam, lParam );
    
if( *pbNoFurtherProcessing )
        
return 0;

    
return 0;
}


//-----------------------------------------------------------------------------
// Desc: 键盘消息处理
//-----------------------------------------------------------------------------
void CALLBACK KeyboardProc( UINT nChar, bool bKeyDown, bool bAltDown, void* pUserContext )
{
    
if( bKeyDown )
    {
        
switch( nChar )
        {
            
case VK_F1: g_bShowHelp = !g_bShowHelp; break;
        }
    }
}


//-----------------------------------------------------------------------------
// Desc: 处理各种控件消息
//-----------------------------------------------------------------------------
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;
    }
}


//-----------------------------------------------------------------------------
// Desc: 释放在OnResetDevice()中创建的资源
//-----------------------------------------------------------------------------
void CALLBACK OnLostDevice( void* pUserContext )
{
    g_DialogResourceManager.OnLostDevice();
    g_SettingsDlg.OnLostDevice();
    
if( g_pFont )
        g_pFont->OnLostDevice();
    SAFE_RELEASE( g_pTextSprite );

    
if( g_pEffect )
        g_pEffect->OnLostDevice();
}


//------------------------------------------------------------------------------
// Desc: 释放在OnCreateDevice()中创建的资源
//------------------------------------------------------------------------------
void CALLBACK OnDestroyDevice( void* pUserContext )
{
    g_DialogResourceManager.OnDestroyDevice();
    g_SettingsDlg.OnDestroyDevice();
    SAFE_RELEASE( g_pFont );

    g_pLobbyMesh->
Destroy();
    SAFE_RELEASE( g_pEffect );
    SAFE_RELEASE(g_pTeapotMesh);
    SAFE_RELEASE( g_pCubeMap );
}
















posted on 2008-04-16 04:22 七星重剑 阅读(537) 评论(0)  编辑 收藏 引用 所属分类: Game Graphics

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