三维物体转动opengl程序Word文档下载推荐.docx

三维物体转动opengl程序Word文档下载推荐.docx

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//HoldsTheInstanceOfTheApplication

boolkeys[256];

//ArrayUsedForTheKeyboardRoutine

boolactive=TRUE;

//WindowActiveFlagSetToTRUEByDefault

boolfullscreen=TRUE;

//FullscreenFlagSetToFullscreenModeByDefault

GLfloatrtri;

//AngleForTheTriangle（NEW）

GLfloatrquad;

//AngleForTheQuad（NEW）

LRESULTCALLBACKWndProc（HWND,UINT,WPARAM,LPARAM）;

//DeclarationForWndProc

GLvoidReSizeGLScene（GLsizeiwidth,GLsizeiheight）//ResizeAndInitializeTheGLWindow

{

if（height==0）//PreventADivideByZeroBy

{

height=1;

//MakingHeightEqualOne

}

glViewport（0,0,width,height）;

//ResetTheCurrentViewport

glMatrixMode（GL_PROJECTION）;

//SelectTheProjectionMatrix

glLoadIdentity（）;

//ResetTheProjectionMatrix

//CalculateTheAspectRatioOfTheWindow

gluPerspective（45.0f,（GLfloat）width/（GLfloat）height,0.1f,100.0f）;

glMatrixMode（GL_MODELVIEW）;

//SelectTheModelviewMatrix

//ResetTheModelviewMatrix

}

intInitGL（GLvoid）//AllSetupForOpenGLGoesHere

glShadeModel（GL_SMOOTH）;

//EnableSmoothShading

glClearColor（0.0f,0.0f,0.0f,0.5f）;

//BlackBackground

glClearDepth（1.0f）;

//DepthBufferSetup

glEnable（GL_DEPTH_TEST）;

//EnablesDepthTesting

glDepthFunc（GL_LEQUAL）;

//TheTypeOfDepthTestingToDo

glHint（GL_PERSPECTIVE_CORRECTION_HINT,GL_NICEST）;

//ReallyNicePerspectiveCalculations

returnTRUE;

//InitializationWentOK

intDrawGLScene（GLvoid）//Here'

sWhereWeDoAllTheDrawing

glClear（GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT）;

//ClearScreenAndDepthBuffer

//ResetTheCurrentModelviewMatrix

glTranslatef（-1.5f,0.0f,-6.0f）;

//MoveLeft1.5UnitsAndIntoTheScreen6.0

glRotatef（rtri,0.0f,1.0f,0.0f）;

//RotateTheTriangleOnTheYaxis（NEW）

glBegin（GL_TRIANGLES）;

//StartDrawingATriangle

glColor3f（1.0f,0.0f,0.0f）;

//Red

glVertex3f（0.0f,1.0f,0.0f）;

//TopOfTriangle（Front）

glColor3f（0.0f,1.0f,0.0f）;

//Green

glVertex3f（-1.0f,-1.0f,1.0f）;

//LeftOfTriangle（Front）

glColor3f（0.0f,0.0f,1.0f）;

//Blue

glVertex3f（1.0f,-1.0f,1.0f）;

//RightOfTriangle（Front）

//TopOfTriangle（Right）

//LeftOfTriangle（Right）

glVertex3f（1.0f,-1.0f,-1.0f）;

//RightOfTriangle（Right）

//TopOfTriangle（Back）

//LeftOfTriangle（Back）

glVertex3f（-1.0f,-1.0f,-1.0f）;

//RightOfTriangle（Back）

//TopOfTriangle（Left）

glVertex3f（-1.0f,-1.0f,-1.0f）;

//LeftOfTriangle（Left）

//RightOfTriangle（Left）

glEnd（）;

//DoneDrawingThePyramid

glTranslatef（1.5f,0.0f,-7.0f）;

//MoveRight1.5UnitsAndIntoTheScreen7.0

glRotatef（rquad,1.0f,1.0f,1.0f）;

//RotateTheQuadOnTheXaxis（NEW）

glBegin（GL_QUADS）;

//DrawAQuad

//SetTheColorToGreen

glVertex3f（1.0f,1.0f,-1.0f）;

//TopRightOfTheQuad（Top）

glVertex3f（-1.0f,1.0f,-1.0f）;

//TopLeftOfTheQuad（Top）

glVertex3f（-1.0f,1.0f,1.0f）;

//BottomLeftOfTheQuad（Top）

glVertex3f（1.0f,1.0f,1.0f）;

//BottomRightOfTheQuad（Top）

glColor3f（1.0f,0.5f,0.0f）;

//SetTheColorToOrange

//TopRightOfTheQuad（Bottom）

//TopLeftOfTheQuad（Bottom）

//BottomLeftOfTheQuad（Bottom）

glVertex3f（1.0f,-1.0f,-1.0f）;

//BottomRightOfTheQuad（Bottom）

//SetTheColorToRed

//TopRightOfTheQuad（Front）

//TopLeftOfTheQuad（Front）

//BottomLeftOfTheQuad（Front）

//BottomRightOfTheQuad（Front）

glColor3f（1.0f,1.0f,0.0f）;

//SetTheColorToYellow

//TopRightOfTheQuad（Back）

//TopLeftOfTheQuad（Back）

//BottomLeftOfTheQuad（Back）

//BottomRightOfTheQuad（Back）

//SetTheColorToBlue

//TopRightOfTheQuad（Left）

//TopLeftOfTheQuad（Left）

//BottomLeftOfTheQuad（Left）

//BottomRightOfTheQuad（Left）

glColor3f（1.0f,0.0f,1.0f）;

//SetTheColorToViolet

//TopRightOfTheQuad（Right）

//TopLeftOfTheQuad（Right）

//BottomLeftOfTheQuad（Right）

//BottomRightOfTheQuad（Right）

//DoneDrawingTheQuad

rtri+=0.2f;

//IncreaseTheRotationVariableForTheTriangle（NEW）

rquad-=0.15f;

//DecreaseTheRotationVariableForTheQuad（NEW）

//KeepGoing

GLvoidKillGLWindow（GLvoid）//ProperlyKillTheWindow

if（fullscreen）//AreWeInFullscreenMode?

ChangeDisplaySettings（NULL,0）;

//IfSoSwitchBackToTheDesktop

ShowCursor（TRUE）;

//ShowMousePointer

if（hRC）//DoWeHaveARenderingContext?

if（!

wglMakeCurrent（NULL,NULL））//AreWeAbleToReleaseTheDCAndRCContexts?

{

MessageBox（NULL,"

ReleaseOfDCAndRCFailed."

"

SHUTDOWNERROR"

MB_OK|MB_ICONINFORMATION）;

}

wglDeleteContext（hRC））//AreWeAbleToDeleteTheRC?

ReleaseRenderingContextFailed."

hRC=NULL;

//SetRCToNULL

if（hDC&

&

!

ReleaseDC（hWnd,hDC））//AreWeAbleToReleaseTheDC

MessageBox（NULL,"

ReleaseDeviceContextFailed."

hDC=NULL;

//SetDCToNULL

if（hWnd&

DestroyWindow（hWnd））//AreWeAbleToDestroyTheWindow?

CouldNotReleasehWnd."

hWnd=NULL;

//SethWndToNULL

if（!

UnregisterClass（"

OpenGL"

hInstance））//AreWeAbleToUnregisterClass

CouldNotUnregisterClass."

hInstance=NULL;

//SethInstanceToNULL

/*ThisCodeCreatesOurOpenGLWindow.ParametersAre:

*

*title-TitleToAppearAtTheTopOfTheWindow*

*width-WidthOfTheGLWindowOrFullscreenMode*

*height-HeightOfTheGLWindowOrFullscreenMode*

*bits-NumberOfBitsToUseForColor（8/16/24/32）*

*fullscreenflag-UseFullscreenMode（TRUE）OrWindowedMode（FALSE）*/

BOOLCreateGLWindow（char*title,intwidth,intheight,intbits,boolfullscreenflag）

GLuintPixelFormat;

//HoldsTheResultsAfterSearchingForAMatch

WNDCLASSwc;

//WindowsClassStructure

DWORDdwExStyle;

//WindowExtendedStyle

DWORDdwStyle;

//WindowStyle

RECTWindowRect;

//GrabsRectangleUpperLeft/LowerRightValues

WindowRect.left=（long）0;

//SetLeftValueTo0

WindowRect.right=（long）width;

//SetRightValueToRequestedWidth

WindowRect.top=（long）0;

//SetTopValueTo0

WindowRect.bottom=（long）height;

//SetBottomValueToRequestedHeight

fullscreen=fullscreenflag;

//SetTheGlobalFullscreenFlag

hInstance=GetModuleHandle（NULL）;

//GrabAnInstanceForOurWindow

wc.style=CS_HREDRAW|CS_VREDRAW|CS_OWNDC;

//RedrawOnSize,AndOwnDCForWindow.

wc.lpfnWndProc=（WNDPROC）WndProc;

//WndProcHandlesMessages

wc.cbClsExtra=0;

//NoExtraWindowData

wc.cbWndExtra=0;

wc.hInstance=hInstance;

//SetTheInstance

wc.hIcon=LoadIcon（NULL,IDI_WINLOGO）;

//LoadTheDefaultIcon

wc.hCursor=LoadCursor（NULL,IDC_ARROW）;

//LoadTheArrowPointer

wc.hbrBackground=NULL;

//NoBackgroundRequiredForGL

wc.lpszMenuName=NULL;

//WeDon'

tWantAMenu

wc.lpszClassName="

;

//SetTheClassName

RegisterClass（&

wc））//AttemptToRegisterTheWindowClass

MessageBox（NUL