OpenGLforWindowsNT及其程序设计.doc

OpenGL for Windows NT OpenGLSGIMicrosoftDECIBMIntel,SGIGL,OpenGL,UNIX;OpenGL,PC,PCMicrosoftOpenGLWindows NT,OpenGLWindows 95,PCOpenGL,OpenGL,Pentium 9016MB RAM520MBPC43cmOpenGL,SGIOpenGL,AGC-3DWindows NTVisual C+2.0,OpenGL,OpenGLOpenGL,OpenGL(1) OpenGL,()(BezierNurbs)(2) OpenGL,()(3) OpenGL,RGBA(Color Index)(4) OpenGL(Emitted Light)(AmbientLight)(Diffuse Light)(Specular Light)(Scene)(5)(Texure Mapping) OpenGL(6) ,(Blending)(Antialiasing)(fog)(7)(Double Buffering) ,OpenGL(Depth Cue)(Motion Blur)OpenGL for Windows NTOpenGL100115,gl;OpenGL(OpenGL utility library,GLU),43,glu; OpenGL(OpenGL auxiliary library,GLAUX),31,aux,WGL,OpenGLWindows NT,wgl,(rendering contexts)Windows NTOpenGL,11 WGL,Win32(pixel formats)Win32,OpenGL,22 Win32OpenGL for Windows NTOpenGL for Windows NTOpenGL for UNIX,OpenGLOpenGL,Windows NTOpenGL1.Windows NT(Device Contexts,DC),DC,OpenGL for Windows NTDC,Windows,OpenGL for Windows NTDC,DCOpenGLOpenGLOpenGLWindows NTOpenGL,OpenGLDC,GDI,OpenGL,OpenGL,2.,RGBA,(1)OpenGLPIXELFORMATDESCRIPTOR,26Win32PIXELFORMATDESCRIPTOR:typedef struct tagPIXELFORMATDESCRIPTORWORD nSize;WORD nVersion;DWORD dwFlags;BYTE iPixelType;BYTE cColorBits;BYTE cRedBits;BYTE cRedShift;BYTE cGreenBits;BYTE cGreenShift;BYTE cBlueBits;BYTE cBlueShift;BYTE cAlphaBits;BYTE cAlphaShift;BYTE cAccumBits;BYTE cAccumRedBits;BYTE cAccumGreenBits;BYTE cAccumBlueBits;BYTE cAccumAlphaBits;BYTE cDepthBits;BYTE cStencilBits;BYTE cAuxBuffers;BYTE ilayerType;BYTE bReserved;DWORD dwLayerMask;DWORD dwVisibleMask;DWORD dwDamageMask; PIXELFORMATDESCRIPTOR,*PPIXELFORMATDESCRIPTOR,FAR *LPPIXELFORMATDESCRIPTOR;(2)PIXELFORMATDESCRIPTORPIXELFORMATDESCRIPTOR,PIXELFORMATDESCRIPTORPIXELFORMATDESCRIPTORpfd:PIXELFORMATDESCRIPTOR pfd=sizeof(PIXELFORMATDESCRIPTOR),/l, /PFD-DRAW-TO-WINDOWS|PFD-SUPPORT-OPENGL,/PFD-TYPE-RGBA,/RGBA24,/240,0,0,0,0,0,/0,0,0,0,0,0,0,/alpha32,/320,0,/PFD-MAIN-PLANE,/0,/0,0,0,/;,dwFlagsPFD-DRAW-TO-WINDOWS|PFD-SUPPORT-OPENGL,OpenGL,RGBA,24,1.67,256;alpha,cAlphaBitscAccumAlphaBits0;32,;cAuxBuffers0,Windows NT;Windows NTOpenGLilayerTypePFD-MAIN-PLANE,PFD-OVERLAY-PLANEPFD-UNDERLAY-PLANE;bReserved0,Windows NT,0(3)PIXELFORMATDESCRIPTOR,VC+ 2.0MFC:CClientDC clientDC(this);int pixelFormat=ChoosePixelFormat(clientDC.m-hDC,&pfd);BOOL result=SetPixelFormat(clientDC.m-hDC,pixelFormat,&pfd);ChoosePixelFormat(),pixelFormat;,PIXELFORMATDESCRIPTOR0;SetPixelFormat(),PIXELFORMATDESCRIPTORTURE;FALSE3.,OpenGL,MFC:int CopenglView: OnCreate(LPCREATESTRUCT lpCreateStruct)if(CView:OnCreate(lpCreateStruct)=-1)return -1;/ TODO: Add your specialized creation code herePIXELFORMATDESCRIPTOR pfd=sizeof(PIXELFORMATDESCRIPTIOR),/structure sizel,/structure version numberPFD-DRAW-TO-WINDOWS|PFD-SUPPORT-OPENGL,/property flagsPFD-TYPE-RGBA, /RGBA mode24, /24bit color0,0,0,0,0,0, /not concerned with these0,0,0,0,0,0,0, /no alpha or accum buffer32, / 32bit depth buffer0,0, /no stencil or aux bufferPFD-MAIN-PLANE, /main layer type0, /reserved0,0,0 /unsupported;CClientDC clientDC(this);int pixelFormat=ChoosePixelFormat(clientDC.m-hDC,&pfd);BOOL result=SetPixelFormat(clientDC.m-hDC,pixelFormat,&pfd);m-hRC=wglCreateContext(clientDC.m-hRC);return 0;void COpenglView:onDraw(CDC *pDC)COpenglDoc* pDoc=GetDocument();ASSERT-VAILD(pDoc);/TODO: add draw code for native data herewglMakeCurrent(pDC->m-hDC,m-hDC);DrawMyOpenGL();wglMakeCurrent(pDC->m-hDC,NULL);void COpenglView:OnDestroy()CView:OnDestroy();/ TODO: Add your message handler code herewglDeleteContext(m-hRC);,WM-CREATEOnCreate()DC,MFCOnDraw(),wglMakeCurrent(),OpenGLDrawMyOpen