hlsl之ambient

最简单的hlsl。

effect code:

//--------------------------------------------------------------------------------------
// 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
texture g_MeshTexture;              // 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;
};


//--------------------------------------------------------------------------------------
// Vertex shader output structure
//--------------------------------------------------------------------------------------
struct VS_OUTPUT
{
    float4 Position   : POSITION;   // vertex position 
    float4 Ambient    : COLOR0;     // vertex diffuse color (note that COLOR0 is clamped from 0..1)
    float2 TextureUV  : TEXCOORD0;  // vertex texture coords 
};


//--------------------------------------------------------------------------------------
// This shader computes standard transform and lighting
//--------------------------------------------------------------------------------------
VS_OUTPUT RenderSceneVS( float4 vPos : POSITION, 
                         float3 vNormal : NORMAL,
                         float2 vTexCoord0 : TEXCOORD0 )
{
    VS_OUTPUT Output;
    float3 vNormalWorldSpace;
    
    // Transform the position from object space to homogeneous projection space
    Output.Position = mul(vPos, g_mWorldViewProjection);

    // Calc diffuse color    
    Output.Ambient.rgb = g_MaterialAmbientColor * g_LightAmbient;   
    Output.Ambient.a = 1.0f; 
    
    // Just copy the texture coordinate through
    Output.TextureUV = vTexCoord0; 
    
    return Output;    
}


//--------------------------------------------------------------------------------------
// Pixel shader output structure
//--------------------------------------------------------------------------------------
struct PS_OUTPUT
{
    float4 RGBColor : COLOR0;  // Pixel color    
};


//--------------------------------------------------------------------------------------
// This shader outputs the pixel's color by modulating the texture's
// color with diffuse material color
//--------------------------------------------------------------------------------------
PS_OUTPUT RenderScenePS( VS_OUTPUT In ) 
{ 
    PS_OUTPUT Output;

    // Lookup mesh texture and modulate it with diffuse
    Output.RGBColor = tex2D(MeshTextureSampler, In.TextureUV) * In.Ambient;

    return Output;
}


//--------------------------------------------------------------------------------------
// Renders scene 
//--------------------------------------------------------------------------------------
technique RenderScene
{
    pass P0
    {          
        VertexShader = compile vs_2_0 RenderSceneVS();
        PixelShader  = compile ps_2_0 RenderScenePS(); 
    }
}

main source code:

//--------------------------------------------------------------------------------------
// 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)


//--------------------------------------------------------------------------------------
// 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 },
    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

    V_RETURN( DXUTFindDXSDKMediaFileCch( str, MAX_PATH, L"SimpleSample.fx" ) );
    V_RETURN( D3DXCreateEffectFromFile( pd3dDevice, str, NULL, NULL, dwShaderFlags,
                                        NULL, &g_pEffect9, NULL ) );

    /* set mtrl ambient and diffuse, to test ambient, diffuse is disable */
    D3DXCOLOR colorMtrlDiffuse(0.0f, 0.0f, 0.0f, 1.0f);
    D3DXCOLOR colorMtrlAmbient(0.5f, 0.5f, 0.1f, 1.0f);
    D3DXCOLOR colorLightAmbient(1.0f, 0.5f, 0.1f, 1.0f);

    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( 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;
}

media:

ChairScene