研究生计算机图形学课程室内场景OpenGL--实验报告

《高级计算机图形学》实验报告姓名：学号：班级：【实验报告要求】实验名称：高级计算机图形学室内场景实验目的：掌握使用OpenGL生成真实感复杂对象的方法，进一步熟练掌握构造实体几何表示法、扫描表示法、八叉树法、BSP树法等建模方法。

实验要求：要求利用OpenGL生成一个真实感的复杂对象及其周围场景，并显示观测点变化时的几何变换，要具备在一个纹理复杂的场景中漫游功能。

要求使用到光线跟踪算法、纹理映射技术以及实时绘制技术。

一、实验效果图图1:正面效果图图2：背面效果图图4：背面效果图图4：室内场景细节效果图图5：场景角度转换效果图二、源文件数据代码：共6个文件，其实现代码如下：1、DlgAbout.cpp#include "StdAfx.h"#include "DlgAbout.h"CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD){}void CAboutDlg::DoDataExchange(CDataExchange* pDX) {CDialog::DoDataExchange(pDX);}BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)END_MESSAGE_MAP()2、FormCommandView.cpp#include "stdafx.h"#include "Tool.h"#include "MainFrm.h"#include "FormCommandView.h"#include "ToolDoc.h"#include "RenderView.h"// Download by #ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE[] = __FILE__;#endif// CFormCommandViewIMPLEMENT_DYNCREATE(CFormCommandView, CFormView) CFormCommandView::CFormCommandView(): CFormView(CFormCommandView::IDD){//{{AFX_DATA_INIT(CFormCommandView)m_Smooth = FALSE;m_Antialias = FALSE;//}}AFX_DATA_INIT}CFormCommandView::~CFormCommandView(){}void CFormCommandView::DoDataExchange(CDataExchange* pDX) {CFormView::DoDataExchange(pDX);//{{AFX_DATA_MAP(CFormCommandView)DDX_Control(pDX, IDC_FRAME_COLOR_BACK, m_ControlBackColor);DDX_Check(pDX, IDC_CHECK_SMOOTH, m_Smooth);DDX_Check(pDX, IDC_CHECK_ANTIALIAS, m_Antialias);//}}AFX_DATA_MAP}BEGIN_MESSAGE_MAP(CFormCommandView, CFormView) //{{AFX_MSG_MAP(CFormCommandView)ON_WM_PAINT()ON_WM_LBUTTONUP()ON_BN_CLICKED(IDC_RADIO_MODEL_1, OnRadioModel1)ON_BN_CLICKED(IDC_RADIO_MODEL_2, OnRadioModel2)ON_BN_CLICKED(IDC_CHECK_SMOOTH, OnCheckSmooth)ON_BN_CLICKED(IDC_CHECK_ANTIALIAS, OnCheckAntialias)//}}AFX_MSG_MAPEND_MESSAGE_MAP()/////////////////////////////////////////////////////////////////////////////// CFormCommandView diagnostics#ifdef _DEBUGvoid CFormCommandView::AssertValid() const{CFormView::AssertValid();}void CFormCommandView::Dump(CDumpContext& dc) const{CFormView::Dump(dc);}CToolDoc* CFormCommandView::GetDocument() // non-debug version is inline{ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CToolDoc)));return (CToolDoc*)m_pDocument;}#endif //_DEBUG// OnPaintvoid CFormCommandView::OnPaint(){// Device context for paintingCPaintDC dc(this);// Options are stored in ApplicationCToolApp *pApp = (CToolApp *)AfxGetApp();CRect rect;// Color backm_ControlBackColor.GetWindowRect(&rect);ScreenToClient(&rect);CBrush BrushBack(pApp->m_OptionColorGlBack);dc.FillRect(&rect,&BrushBack);}// OnLButtonUpvoid CFormCommandView::OnLButtonUp(UINT nFlags,CPoint point){CRect rect;CToolApp *pApp = (CToolApp *)AfxGetApp();// Option back colorm_ControlBackColor.GetWindowRect(&rect);ScreenToClient(&rect);if(rect.PtInRect(point)){CColorDialog dlg(pApp->m_OptionColorGlBack);if(dlg.DoModal()==IDOK){pApp->m_OptionColorGlBack = dlg.GetColor();CRenderView *pView = (CRenderView *)GetRenderView();pView->m_ClearColorRed = (float)GetRValue(pApp->m_OptionColorGlBack) / 255.0f;pView->m_ClearColorGreen = (float)GetGValue(pApp->m_OptionColorGlBack) / 255.0f;pView->m_ClearColorBlue = (float)GetBValue(pApp->m_OptionColorGlBack) / 255.0f;this->InvalidateRect(&rect,FALSE);pView->InvalidateRect(NULL,FALSE);}}CFormView::OnLButtonUp(nFlags, point);}// GetRenderViewCView *CFormCommandView::GetRenderView(){CToolApp *pApp = (CToolApp *)AfxGetApp();CMainFrame *pFrame = (CMainFrame *)pApp->m_pMainWnd;CView *pView = (CView *)pFrame->m_wndSplitter.GetPane(0,1);return pView;}// Modelvoid CFormCommandView::OnRadioModel1(){glPolygonMode(GL_FRONT_AND_BACK,GL_LINE);this->GetRenderView()->InvalidateRect(NULL,FALSE);}void CFormCommandView::OnRadioModel2(){glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);this->GetRenderView()->InvalidateRect(NULL,FALSE);}// OnCheckSmoothvoid CFormCommandView::OnCheckSmooth(){m_Smooth = !m_Smooth;if(m_Smooth)glShadeModel(GL_SMOOTH);elseglShadeModel(GL_FLAT);this->GetRenderView()->InvalidateRect(NULL,FALSE);}// OnCheckAntialias// Toggle antialiased linesvoid CFormCommandView::OnCheckAntialias(){m_Antialias = !m_Antialias;if(m_Antialias){glEnable(GL_LINE_SMOOTH);glEnable(GL_BLEND);glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);glHint(GL_LINE_SMOOTH_HINT,GL_NICEST);glLineWidth(1.5f);}else{glDisable(GL_LINE_SMOOTH);glDisable(GL_BLEND);glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);glHint(GL_LINE_SMOOTH_HINT,GL_NICEST);glLineWidth(1.0f);}GetRenderView()->InvalidateRect(NULL,FALSE);}3、MainFrm.cpp#include "stdafx.h"#include "Tool.h"// Download by #include "MainFrm.h"#include "FormCommandView.h"#include "RenderView.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE[] = __FILE__;#endif// CMainFrameIMPLEMENT_DYNAMIC(CMainFrame, CFrameWnd) BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd) //{{AFX_MSG_MAP(CMainFrame)ON_WM_CREATE()ON_WM_PAINT()//}}AFX_MSG_MAPEND_MESSAGE_MAP()static UINT indicators[] ={ID_SEPARATOR, // status line indicatorID_INDICATOR_CAPS,ID_INDICATOR_NUM,ID_INDICATOR_SCRL,};// CMainFrame construction/destruction CMainFrame::CMainFrame(){}CMainFrame::~CMainFrame(){}int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct) {if (CFrameWnd::OnCreate(lpCreateStruct) == -1)return -1;if (!m_wndToolBar.Create(this) ||!m_wndToolBar.LoadToolBar(IDR_MAINFRAME)) {TRACE0("Failed to create toolbar\n");return -1; // fail to create}if (!m_wndStatusBar.Create(this) ||!m_wndStatusBar.SetIndicators(indicators,sizeof(indicators)/sizeof(UINT))){TRACE0("Failed to create status bar\n");return -1; // fail to create}m_wndToolBar.SetBarStyle(m_wndToolBar.GetBarStyle() | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC);return 0;}BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs) {cs.cx = 600; cs.cy = 500;return CFrameWnd::PreCreateWindow(cs);}// CMainFrame diagnostics#ifdef _DEBUGvoid CMainFrame::AssertValid() const{CFrameWnd::AssertValid();}void CMainFrame::Dump(CDumpContext& dc) const{CFrameWnd::Dump(dc);}#endif //_DEBUG// CMainFrame message handlersvoid CMainFrame::OnPaint(){CPaintDC dc(this); // device context for painting}BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext){if (!m_wndSplitter.CreateStatic(this, 1, 2,WS_CHILD | WS_VISIBLE)){TRACE("Failed to CreateStaticSplitter\n");return FALSE;}// First splitter paneif (!m_wndSplitter.CreateView(0, 0,RUNTIME_CLASS(CRenderView), CSize(600,500), pContext)) {TRACE("Failed to create command view pane\n");return FALSE;}if (!m_wndSplitter.CreateView(0, 1,RUNTIME_CLASS(CFormCommandView), CSize(0,0), pContext)) {TRACE("Failed to create command view pane\n");return FALSE;}// Second splitter panereturn TRUE;}4、RenderView.cpp#include "stdafx.h"#include "Tool.h"#include <string.h>#include <time.h>#include <math.h>#include "ToolDoc.h"#include "RenderView.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE[] = __FILE__;#endifextern void Render(void);// This is the holding space for the landscape colours.int WinWidth, WinHeigth;unsigned short int comp = 32; // Scale modifier.unsigned short int temp, texture_mapping = FALSE,land_fogging = TRUE, flat_shading = TRUE; float angle, Near, ex, ey, ez, cx, cy, cz;// Initial eye position and vector of sight.static GLfloat speed = 0;// The following code for mouse routines was contributed.// These are used for the motion function.#define FORWARD 1#define UP 2#define TURNLEFT 3#define LOOKUP 5// Mouse position and button.int oldmx = 0, oldmy = 0, mb;// CRenderViewIMPLEMENT_DYNCREATE(CRenderView, CView)BEGIN_MESSAGE_MAP(CRenderView, CView)//{{AFX_MSG_MAP(CRenderView)ON_WM_DESTROY()ON_WM_SIZE()ON_WM_LBUTTONDOWN()ON_WM_LBUTTONUP()ON_WM_MOUSEMOVE()ON_WM_PAINT()ON_WM_CREATE()//}}AFX_MSG_MAP// Standard printing commandsON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)END_MESSAGE_MAP()// CRenderView construction/destructionCRenderView::CRenderView(){// OpenGLm_hGLContext = NULL;m_GLPixelIndex = 0;// Mousem_LeftButtonDown = FALSE;m_RightButtonDown = FALSE;m_CursorRotation = AfxGetApp()->LoadCursor(IDC_CURSOR_ROTATION); // ColorsCToolApp *pApp = (CToolApp *)AfxGetApp();m_ClearColorRed = GetRValue(pApp->m_OptionColorGlBack); m_ClearColorGreen = GetGValue(pApp->m_OptionColorGlBack); m_ClearColorBlue = GetBValue(pApp->m_OptionColorGlBack); ReadData();WinWidth=1000;WinHeigth=800;LoadAllTexture();InitLookAt();}//============================================// InitGeometry//============================================void CRenderView::InitGeometry(void){GLfloat fogColor[4] = {0.75, 0.75, 1.0, 1.0};speed = 0;srand(224);srand((unsigned)time(NULL));glPixelStorei(GL_UNPACK_ALIGNMENT, 1);glEnable(GL_DEPTH_TEST);glShadeModel(GL_FLAT);glFogi(GL_FOG_MODE, GL_LINEAR);glFogfv(GL_FOG_COLOR, fogColor);glFogf(GL_FOG_DENSITY, 0.8f);glFogf(GL_FOG_START, 400.0f);glFogf(GL_FOG_END, 500.0f);glClearColor(0.75f, 0.75f, 1.0f, 1.0f);}CRenderView::~CRenderView(){FreeAllTexture();freelist();}BOOL CRenderView::PreCreateWindow(CREATESTRUCT& cs){return CView::PreCreateWindow(cs);}// CRenderView drawingvoid CRenderView::OnDraw(CDC* pDC){}BOOL CRenderView::OnPreparePrinting(CPrintInfo* pInfo){return DoPreparePrinting(pInfo);}void CRenderView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) {}void CRenderView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) {}// CRenderView diagnostics#ifdef _DEBUGvoid CRenderView::AssertValid() const{CView::AssertValid();}void CRenderView::Dump(CDumpContext& dc) const{CView::Dump(dc);}CToolDoc* CRenderView::GetDocument() // non-debug version is inline {if (m_pDocument){ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CToolDoc)));return (CToolDoc*)m_pDocument;}else return NULL;}#endif //_DEBUG// Create OpenGL rendering contextint CRenderView::OnCreate(LPCREATESTRUCT lpCreateStruct) {if (CView::OnCreate(lpCreateStruct) == -1)return -1;HWND hWnd = GetSafeHwnd();HDC hDC = ::GetDC(hWnd);if(SetWindowPixelFormat(hDC)==FALSE)return 0;if(CreateViewGLContext(hDC)==FALSE)return 0;// Default modeglPolygonMode(GL_FRONT,GL_FILL);glPolygonMode(GL_BACK,GL_FILL);glShadeModel(GL_FLAT);// light must be disabled// while rendering the terrain// because it has no normal definitionInitGeometry();glEnable(GL_TEXTURE_2D);glDisable(GL_LIGHTING);return 0;}BOOL CRenderView::SetWindowPixelFormat(HDC hDC){PIXELFORMATDESCRIPTOR pixelDesc;pixelDesc.nSize = sizeof(PIXELFORMATDESCRIPTOR);pixelDesc.nVersion = 1;pixelDesc.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER | PFD_STEREO_DONTCARE;pixelDesc.iPixelType = PFD_TYPE_RGBA;olorBits = 32;pixelDesc.cRedBits = 8;pixelDesc.cRedShift = 16;pixelDesc.cGreenBits = 8;pixelDesc.cGreenShift = 8;pixelDesc.cBlueBits = 8;pixelDesc.cBlueShift = 0;pixelDesc.cAlphaBits = 0;pixelDesc.cAlphaShift = 0;pixelDesc.cAccumBits = 64;pixelDesc.cAccumRedBits = 16;pixelDesc.cAccumGreenBits = 16;pixelDesc.cAccumBlueBits = 16;pixelDesc.cAccumAlphaBits = 0;pixelDesc.cDepthBits = 32;pixelDesc.cStencilBits = 8;pixelDesc.cAuxBuffers = 0;pixelDesc.iLayerType = PFD_MAIN_PLANE;pixelDesc.bReserved = 0;pixelDesc.dwLayerMask = 0;pixelDesc.dwVisibleMask = 0;pixelDesc.dwDamageMask = 0;m_GLPixelIndex = ChoosePixelFormat(hDC,&pixelDesc);if(m_GLPixelIndex == 0) // Choose default{m_GLPixelIndex = 1;if(DescribePixelFormat(hDC,m_GLPixelIndex,sizeof(PIXELFORMATDESCRIPTOR),&pixelDesc)==0)return FALSE;}if(!SetPixelFormat(hDC,m_GLPixelIndex,&pixelDesc))return FALSE;return TRUE;}// Create an OpenGL rendering contextBOOL CRenderView::CreateViewGLContext(HDC hDC) {m_hGLContext = wglCreateContext(hDC);if(m_hGLContext==NULL)return FALSE;if(wglMakeCurrent(hDC,m_hGLContext)==FALSE)return FALSE;return TRUE;}// Cleanup every OpenGL rendering contextvoid CRenderView::OnDestroy(){if(wglGetCurrentContext() != NULL)wglMakeCurrent(NULL,NULL);if(m_hGLContext != NULL){wglDeleteContext(m_hGLContext);m_hGLContext = NULL;}CView::OnDestroy();}void CRenderView::OnSize(UINT nType, int cx, int cy) {CView::OnSize(nType, cx, cy);// Set OpenGL perspective, viewport and modeCSize size(cx,cy);double aspect;aspect = (cy == 0) ? (double)size.cx : (double)size.cx/(double)size.cy; glViewport(0, 0, (GLsizei) cx, (GLsizei) cy);glMatrixMode(GL_PROJECTION);glLoadIdentity();gluPerspective(60.0, (GLfloat) cx/(GLfloat) cy, 1.0f, 500.0f); glMatrixMode(GL_MODELVIEW);glLoadIdentity();gluLookAt (ex, ey, ez, cx, cy, cz, 0.0f, 1.0f, 0.0f);}void CRenderView::OnLButtonDown(UINT nFlags, CPoint point){m_LeftButtonDown = TRUE;m_LeftDownPos = point;CView::OnLButtonDown(nFlags, point);}void CRenderView::OnLButtonUp(UINT nFlags,CPoint point){m_LeftButtonDown = FALSE;CView::OnLButtonUp(nFlags, point);}void CRenderView::OnMouseMove(UINT nFlags, CPoint point){switch(nFlags){case(MK_LBUTTON):MoveEye(FORWARD,(GLfloat)(oldmy-point.y)/5.0f,1);break;case(MK_RBUTTON):MoveEye(TURNLEFT, (GLfloat)(oldmx-point.x), 1);break;}oldmy = point.y;oldmx = point.x;Invalidate(FALSE);CView::OnMouseMove(nFlags, point);}void CRenderView::OnPaint(){// Device context for paintingCPaintDC dc(this);// Useful in singledoc templatesHWND hWnd = GetSafeHwnd();HDC hDC = ::GetDC(hWnd);wglMakeCurrent(hDC,m_hGLContext);glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);glClearColor(m_ClearColorRed,m_ClearColorGreen,m_ClearColorBlue,1.0f); glPushMatrix();glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);InitRenderWin();Render();// Double buffersSwapBuffers(hDC);}// Function that moves the eye or turns the angle of sight.// Updates scene if update != 0.void CRenderView::MoveEye(int type, GLfloat amount, int update){GLfloat a;switch(type){case FORWARD:a = sqrt((cx-ex)*(cx-ex)+(cz-ez)*(cz-ez));ex = (amount*(cx-ex)+a*ex) / a;ez = (amount*(cz-ez)+a*ez) / a;cx = (amount*(cx-ex)+a*cx) / a;cz = (amount*(cz-ez)+a*cz) / a;break;case TURNLEFT:cx = (cx-ex)*(float)cos(amount/360.0f) + (cz-ez)*(float)sin(amount/360.0f)+ex;cz = (cz-ez)*(float)cos(amount/360.0f) - (cx-ex)*(float)sin(amount/360.0f)+ez;break;case UP:ey += amount;break;case LOOKUP:cy += amount;break;}if (update){glMatrixMode(GL_MODELVIEW);glLoadIdentity();gluLookAt(ex, ey, ez, cx, cy, cz, 0.0f,1.0f,0.0f);}}TEXTURE_2D **TextureList;OBJECT *ObjectList; /* ObjectList[0]:isolated surfaces*/INT4S ObjectNum;char gEnergyFile[30];char sLookAtFN[100];char ImageName[30];void CRenderView::ReadData(){int i,j,l;FILE *fp;char stemp[100];POINT3D *plist;INT4U nAllVertexNum;INT4U *pchlist;strcpy(gEnergyFile,"room.ed");fp = fopen( gEnergyFile, "r" );if ( fp == NULL ){printf( "\n Can not open energy data file:%s\n", gEnergyFile);exit(0);}fseek( fp, 0, SEEK_SET);/****** read texture list ******/fscanf( fp, "%s", stemp);while( strcmp( stemp,"texnum" ) != 0) fscanf( fp, "%s", stemp); fscanf( fp, "%d", &texnum );TextureList = (TEXTURE_2D **)malloc( sizeof(TEXTURE_2D)*(texnum+1)); for(i=1; i<=texnum; i++){TextureList[i] = (TEXTURE_2D *)malloc( sizeof(TEXTURE_2D));fscanf( fp, "%s%s", TextureList[i]->fname, stemp );if ( strcmp( stemp,"REPEAT_TEXTURE" ) == 0)TextureList[i]->type = 1;else if ( strcmp( stemp,"CLAMP_TEXTURE" ) == 0)TextureList[i]->type = 0;}/****** Read object list ******/fscanf( fp, "%s", stemp);while( strcmp( stemp,"ObjectNum" ) != 0) fscanf(fp,"%s",stemp); fscanf( fp, "%ld", &ObjectNum);ObjectList = (OBJECT *)malloc( sizeof(OBJECT ) * ObjectNum);for(i = 0; i < ObjectNum; i ++ ){f scanf( fp, "%s", stemp);w hile( strcmp( stemp,"SurfaceNum" ) != 0) fscanf(fp,"%s",stemp);f scanf( fp, "%ld", &(ObjectList[i].SurfNum) );ObjectList[i].surflist = (SURFACE *)malloc( sizeof(SURFACE) * ObjectList[i].SurfNum);for(j = 0; j < ObjectList[i].SurfNum; j ++ ){/****** Read surface infor ******/fscanf( fp, "%s", stemp);while( strcmp( stemp,"TextureId" ) != 0) fscanf(fp,"%s",stemp);fscanf( fp, "%d", &(ObjectList[i].surflist[j].texId) );fscanf( fp, "%s", stemp);while( strcmp( stemp,"pointnum" ) != 0) fscanf(fp,"%s",stemp);fscanf( fp, "%d", &(ObjectList[i].surflist[j].pointn) );fscanf( fp, "%s", stemp);while( strcmp( stemp,"triangle" ) != 0) fscanf(fp,"%s",stemp);fscanf( fp, "%d", &(ObjectList[i].surflist[j].triangle) );fscanf( fp, "%s", stemp);while( strcmp( stemp,"quadrangle" ) != 0) fscanf(fp,"%s",stemp);fscanf( fp, "%d", &(ObjectList[i].surflist[j].quadric) );/****** Read point list ******/ObjectList[i].surflist[j].pointlist = (POINT3D*)malloc(sizeof(POINT3D) *ObjectList[i].surflist[j].pointn);plist = ObjectList[i].surflist[j].pointlist;for( l = 0; l < ObjectList[i].surflist[j].pointn ; l ++ )fscanf( fp, "%f%f%f%f%f%f%f%f",&(plist[l].r), &(plist[l].g), &(plist[l].b),&(plist[l].u), &(plist[l].v),&(plist[l].x), &(plist[l].y), &(plist[l].z) );/****** Read patchlist ******/nAllVertexNum = ObjectList[i].surflist[j].triangle * 3 +ObjectList[i].surflist[j].quadric *4 ;ObjectList[i].surflist[j].patchlist = (INT4U *)malloc( sizeof(INT4U) * nAllVertexNum);pchlist = ObjectList[i].surflist[j].patchlist;for( l = 0; l < nAllVertexNum; l ++ )fscanf( fp, "%ld", &(pchlist[l]) );}}fclose(fp);}void CRenderView::InitLookAt(){FILE *fp;strcpy(sLookAtFN,"room.lk");fp = fopen(sLookAtFN, "rb");if (fp == NULL){ex = ey = ez =1.0f;cx = cy = cz =0.0f;Near = 0.1f;angle = 30.0f;}else fscanf(fp, "%f%f%f%f%f%f%f%f", &angle, &Near, &ex, &ey, &ez, &cx, &cy, &cz);fclose(fp);}void CRenderView::InitRenderWin(){glShadeModel ( GL_SMOOTH );glDepthFunc ( GL_LESS );glEnable ( GL_DEPTH_TEST );glMatrixMode ( GL_PROJECTION );glLoadIdentity();glMatrixMode ( GL_MODELVIEW );glLoadIdentity();gluPerspective ( angle, (float)WinWidth/(float)WinHeigth, Near, 1000000000.0); gluLookAt( ex, ey, ez, cx, cy, cz, 0.0, 1.0, 0.0);}void CRenderView::Render(void){int i, j, k, l, m, TexIndex;POINT3D *plist;INT4U *pchlist;glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_ACCUM_BUFFER_BIT);for(i = 0; i < ObjectNum; i ++ )for(j = 0; j < ObjectList[i].SurfNum; j ++ ){TexIndex = ObjectList[i].surflist[j].texId;if( TexIndex > 0 )InitTex( TexIndex );plist = ObjectList[i].surflist[j].pointlist;pchlist = ObjectList[i].surflist[j].patchlist;l = 0;for ( k = 0; k < ObjectList[i].surflist[j].triangle; k ++){glBegin( GL_TRIANGLES );for( m = 0; m < 3; m ++ ){glColor3f ( plist[pchlist[l]].r,plist[pchlist[l]].g,plist[pchlist[l]].b );glTexCoord2f( plist[pchlist[l]].u,plist[pchlist[l]].v );glVertex3f( plist[pchlist[l]].x,plist[pchlist[l]].y,plist[pchlist[l]].z );l ++;}/* m */glEnd();}/* k */for ( k = 0; k < ObjectList[i].surflist[j].quadric; k ++){glBegin( GL_QUADS );for( m = 0; m < 4; m ++ ){glColor3f ( plist[pchlist[l]].r,plist[pchlist[l]].g,plist[pchlist[l]].b );glTexCoord2f( plist[pchlist[l]].u,plist[pchlist[l]].v );glVertex3f( plist[pchlist[l]].x,plist[pchlist[l]].y,plist[pchlist[l]].z );l ++;}/* m */glEnd();}/* k */glFlush();CloseTex();}}void CRenderView::freelist(){int i, j;for( i=0; i<ObjectNum; i++){for( j=0; j<ObjectList[i].SurfNum; j++){free(ObjectList[i].surflist[j].pointlist);free(ObjectList[i].surflist[j].patchlist);}free( ObjectList[i].surflist );}free(ObjectList);for(i=1; i<=texnum; i++)free(TextureList[i]);free(TextureList);}extern TEXTURE_2D **TextureList;/********************************//* function : OpenTexImage *//********************************/unsigned char *CRenderView::OpenTexImage( INT2U TexIndex, INT2U *rslx, INT2U *rsly ){unsigned char *image;FILE *fp;INT2U srcx, srcy;INT4U i, j;char ImageName[30];unsigned char *SImageData;int rc;int width, height;strcpy( ImageName, TextureList[TexIndex]->fname);/* load a image */fp = fopen(ImageName,"rb");if(!fp) return 0;fseek(fp,18L,0);rc=fread(&width,sizeof(long),1,fp);rc=fread(&height,sizeof(long),1,fp);*rslx=srcx=width; *rsly=srcy=height;fseek(fp,54L,0);image = (unsigned char *)malloc(width*height*3);rc=fread(image,width*height*3,1,fp);fclose(fp);SImageData = (unsigned char *)malloc(srcx*srcy*3);for(i=0; i<srcx; i++) {for(j=0; j<srcy; j++) {(unsigned char)*(SImageData+i*srcx*3+j*3+0) = (unsigned char)*(image+i*srcx*3+j*3+2);(unsigned char)*(SImageData+i*srcx*3+j*3+1) = (unsigned char)*(image+i*srcx*3+j*3+1);(unsigned char)*(SImageData+i*srcx*3+j*3+2) = (unsigned char)*(image+i*srcx*3+j*3+0);}}free(image);printf("%s : %ld=%ld\n", ImageName, srcx*srcy*3,i*j*3);return( SImageData );}/********************************//* function : InitTex *//********************************/void CRenderView::InitTex( int TexIndex ){INT2U TextType;unsigned char *ImageData;static int OldIndex = -1;if(TexIndex<=0) return;if(TexIndex == OldIndex){glEnable(GL_TEXTURE_2D);return;}ImageData = ImageDatas[TexIndex-1];TextType = TextureList[TexIndex]->type;glPixelStorei(GL_UNPACK_ALIGNMENT, 1);glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);if( TextType == CLAMP_TEXTURE ){glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);}else{glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);}glTexImage2D( GL_TEXTURE_2D, 0, 3, rslxs[TexIndex-1], rslys[TexIndex-1],0,GL_RGB, GL_UNSIGNED_BYTE, ImageData );glEnable(GL_TEXTURE_2D);OldIndex = TexIndex;}/********************************//* function : CloseTex *//********************************/void CRenderView::CloseTex(){glDisable(GL_TEXTURE_2D);}void CRenderView::LoadAllTexture(){int i;for (i=0; i <texnum ; i++)ImageDatas[i] = OpenTexImage( i+1, &rslxs[i], &rslys[i] );}void CRenderView::FreeAllTexture(){int i;for (i=0; i <texnum ; i++)free(ImageDatas[i]);}5、StdAfx.cpp#include "stdafx.h"6、Tool.cpp#include "stdafx.h"#include "Tool.h"#include "DlgAbout.h"#include "MainFrm.h"#include "ToolDoc.h"#include "RenderView.h"// Download by #ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE[] = __FILE__;#endif// CToolAppCToolDoc *MyDocument;BEGIN_MESSAGE_MAP(CToolApp, CWinApp)//{{AFX_MSG_MAP(CToolApp)ON_COMMAND(ID_APP_ABOUT, OnAppAbout)//}}AFX_MSG_MAP// Standard file based document commands// Standard print setup commandON_COMMAND(ID_FILE_PRINT_SETUP, CWinApp::OnFilePrintSetup) END_MESSAGE_MAP()// CToolApp constructionCToolApp::CToolApp(){// Optionsm_OptionColorGlBack = RGB(0,0,255);}// The one and only CToolApp objectCToolApp theApp;// CToolApp initializationBOOL CToolApp::InitInstance(){AfxEnableControlContainer();// Standard initialization// If you are not using these features and wish to reduce the size// of your final executable, you should remove from the following// the specific initialization routines you do not need.#ifdef _AFXDLLEnable3dControls(); // Call this when using MFC in a shared DLL#elseEnable3dControlsStatic(); // Call this when linking to MFC statically#endif// Change the registry key under which our settings are stored.// You should modify this string to be something appropriate// such as the name of your company or organization.SetRegistryKey(_T("3D Toolbox"));LoadStdProfileSettings(10); // Load standard INI file options (including MRU)// Register the application's document templates. Document templates // serve as the connection between documents, frame windows and views.CSingleDocTemplate* pDocTemplate;// create main SDI Frame windowCMainFrame* pMainFrame = new CMainFrame;if (!pMainFrame->LoadFrame(IDR_MAINFRAME))return FALSE;m_pMainWnd = pMainFrame;pDocTemplate = new CSingleDocTemplate(IDR_MODELTYPE,RUNTIME_CLASS(CToolDoc),RUNTIME_CLASS(CMainFrame),RUNTIME_CLASS(CRenderView));AddDocTemplate(pDocTemplate);// The main window has been initialized, so show and update it.//pMainFrame->ShowWindow(SW_SHOWMAXIMIZED);pMainFrame->ShowWindow(SW_SHOW);pMainFrame->UpdateWindow();return TRUE;}// App command to run the dialogvoid CToolApp::OnAppAbout(){CAboutDlg aboutDlg;aboutDlg.DoModal();}6、ToolDoc.cpp#include "stdafx.h"#include "math.h"#include "Tool.h"#include "ToolDoc.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE[] = __FILE__;#endifIMPLEMENT_DYNCREATE(CToolDoc, CDocument)BEGIN_MESSAGE_MAP(CToolDoc, CDocument)//{{AFX_MSG_MAP(CToolDoc)// NOTE - the ClassWizard will add and remove mapping macros here.// DO NOT EDIT what you see in these blocks of generated code!//}}AFX_MSG_MAPEND_MESSAGE_MAP()。