几个opengl立方体绘制案例

VC6 下载

http://blog.csdn.net/bcbobo21cn/article/details/44200205





opengl环境配置

http://blog.csdn.net/bcbobo21cn/article/details/51044614#t4





下面的demoproject

http://pan.baidu.com/s/1mhT1FIw

一  OpenGL 绘制一个立方体

代码

#include<GL/glut.h>

// 绘制立方体

// 将立方体的八个顶点保存到一个数组里面 

static const float vertex_list[][3] =
{
    -0.5f, -0.5f, -0.5f,
    0.5f, -0.5f, -0.5f,
    -0.5f, 0.5f, -0.5f,
    0.5f, 0.5f, -0.5f,
    -0.5f, -0.5f, 0.5f,
    0.5f, -0.5f, 0.5f,
    -0.5f, 0.5f, 0.5f,
    0.5f, 0.5f, 0.5f,
}; 

// 将要使用的顶点的序号保存到一个数组里面 

static const GLint index_list[][2] =
{
    {0, 1},
    {2, 3},
    {4, 5},
    {6, 7},
    {0, 2},
    {1, 3},
    {4, 6},
    {5, 7},
    {0, 4},
    {1, 5},
    {7, 3},
    {2, 6}
}; 

// 绘制立方体

void DrawCube(void)
{
    int i,j;

    glBegin(GL_LINES);
    for(i=0; i<12; ++i) // 12 条线段

    {
        for(j=0; j<2; ++j) // 每条线段 2个顶点

        {
            glVertex3fv(vertex_list[index_list[i][j]]);
        }
    }
    glEnd();
}

static float rotate = 0;
static int times = 0;

void renderScene(void)
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();
    glPushMatrix();

    //glTranslatef(-0.2, 0, 0); // 平移

    //glScalef(2, 1, 1);    // 缩放

    times++;
    if(times > 100)
    {
        times = 0;
    }

    if(times % 100 == 0)
    {
        rotate += 0.3;
    }

    glRotatef(rotate, 0, 1, 0);
    glRotatef(rotate, 1, 0, 0);

    glColor3f(0, 0, 1);

    DrawCube();

    glPopMatrix();
    glutSwapBuffers();
}

void main(int argc, char **argv)
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGBA);
    glutInitWindowPosition(100,100);
    glutInitWindowSize(500, 500);
    glutCreateWindow("GLDemo");
    glutDisplayFunc(renderScene);
    glutIdleFunc(renderScene);
    glutMainLoop();
}

效果。随时间而动；

watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="">

glVertex函数用在glBegin和glEnd之间，除此以外没有意义。

用来指定点、线和多边形的顶点。当调用glVertex时。能够为该顶点指定颜色、法线量和纹理坐标。当仅仅指定x。y时。z缺省为0.0，w缺省为1.0；当仅仅指定x、y和z时。w缺省为1.0。

二 3D旋转立方体

代码

/**
 * function：动态3D立方体
 */
#include <windows.h>
#include <gl/gl.h>
#include <gl/glu.h>  

char *className = "OpenGL";
char *windowName = "OpenGL Cube";
int winX = 0, winY = 0;
int winWidth = 300, winHeight = 300;
HDC hDC;
HGLRC hGLRC;
HPALETTE hPalette;
void init(void){
    //设置视图投影
    glMatrixMode(GL_PROJECTION);
    glFrustum(-0.5F,0.5F,-0.5F,0.5F,1.0F,3.0F);
    //视区定位
    glMatrixMode(GL_MODELVIEW);
    glTranslatef(0.0F,0.0F,-2.0F);
    //物体定位
    glRotatef(30.0F,1.0F,0.0F,0.0F);
    glRotatef(30.0F,0.0F,1.0F,0.0F);
    glEnable(GL_DEPTH_TEST);
    glEnable(GL_LIGHTING);
    glEnable(GL_LIGHT0);
}
void redraw(HDC hDC){
    //清除颜色和深度缓冲区
    //glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
    //glClearDepth(2.0);
    glClear(GL_COLOR_BUFFER_BIT| GL_DEPTH_BUFFER_BIT);
    //画立方体的6个面
    glBegin(GL_QUADS);
    glNormal3f( 0.0F, 0.0F, 1.0F);
    glVertex3f( 0.5f, 0.5f, 0.5f);
    glVertex3f(-0.5f, 0.5f, 0.5f);
    glVertex3f(-0.5f,-0.5f, 0.5f);
    glVertex3f( 0.5f,-0.5f, 0.5f);
    //1----------------------------
    glNormal3f( 0.0F, 0.0F,-1.0F);
    glVertex3f(-0.1f,-0.5f,-0.5f);
    glVertex3f(-0.5f, 0.5f,-0.5f);
    glVertex3f( 0.5f, 0.5f,-0.5f);
    glVertex3f( 0.5f,-0.5f,-0.5f);
    //2----------------------------
    glNormal3f( 0.0F, 1.0F, 0.0F);
    glVertex3f( 0.5f, 0.5f, 0.5f);
    glVertex3f( 0.5f, 0.5f,-0.5f);
    glVertex3f(-0.5f, 0.5f,-0.5f);
    glVertex3f(-0.5f, 0.5f, 0.5f);
    //3----------------------------
    glNormal3f( 0.0F,-1.0F, 0.0F);
    glVertex3f(-0.5f,-0.5f,-0.5f);
    glVertex3f( 0.5f,-0.5f,-0.5f);
    glVertex3f( 0.5f,-0.5f, 0.5f);
    glVertex3f(-0.5f,-0.5f, 0.5f);
    //4----------------------------
    glNormal3f( 1.0F, 0.0F, 0.0F);
    glVertex3f( 0.5f, 0.5f, 0.5f);
    glVertex3f( 0.5f,-0.5f, 0.5f);
    glVertex3f( 0.5f,-0.5f,-0.5f);
    glVertex3f( 0.5f, 0.5f,-0.5f);
    //5----------------------------
    glNormal3f(-1.0F, 0.0F, 0.0F);
    glVertex3f(-0.5f,-0.5f,-0.5f);
    glVertex3f(-0.5f,-0.5f, 0.5f);
    glVertex3f(-0.5f, 0.5f, 0.5f);
    glVertex3f(-0.5f, 0.5f,-0.5f);
    //6----------------------------*/
    glEnd();
    SwapBuffers(hDC);
}
void resize(void){
    //设置视区。使之覆盖整个窗体
    glViewport(0,0,winWidth,winHeight);
}
void setupPixelFormat(HWND hwnd, HDC* hDC, HGLRC* hRC){
    PIXELFORMATDESCRIPTOR pfd;  

    int iFormat;  

    /* get the device context (DC) */
    *hDC = GetDC(hwnd);  

    /* set the pixel format for the DC */
    ZeroMemory(&pfd, sizeof(pfd));  

    pfd.nSize = sizeof(pfd);//结构的大小
    pfd.nVersion = 1;//版本号
    pfd.dwFlags = PFD_DRAW_TO_WINDOW |
                  PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;//支持双缓存
    pfd.iPixelType = PFD_TYPE_RGBA;//颜色模式
    pfd.cColorBits = 24;
    pfd.cDepthBits = 16;//颜色深度
    pfd.iLayerType = PFD_MAIN_PLANE;//主层  

    iFormat = ChoosePixelFormat(*hDC, &pfd);//确定pfd结构是否存在  

    SetPixelFormat(*hDC, iFormat, &pfd);  

    /* create and enable the render context (RC) */
    *hRC = wglCreateContext(*hDC);  

    wglMakeCurrent(*hDC, *hRC);  

    /*if(iFormat == 0){
        MessageBox(WindowFromDC(hDC),"ChoosePixelFormat failed.",
                   "Error",MB_ICONERROR|MB_OK);
        exit(1);
    }
    if(SetPixelFormat(hDC,iFormat,&pfd)!=TRUE){
        MessageBox(WindowFromDC(hDC),"SetPixelFormat failed.",
                   "Error",MB_ICONERROR|MB_OK);
        exit(1);
    }*/
}
void setupPalette(HDC hDC){
    int pixelFormat = GetPixelFormat(hDC);
    PIXELFORMATDESCRIPTOR pfd;
    LOGPALETTE* pPal;
    int paletteSize;
    DescribePixelFormat(hDC,pixelFormat,
                        sizeof(PIXELFORMATDESCRIPTOR),&pfd);
    if(pfd.dwFlags & PFD_NEED_PALETTE){
        paletteSize = 1 << pfd.cColorBits;
    }
    else{
        return ;
    }
    pPal = (LOGPALETTE*)malloc(sizeof(LOGPALETTE)+paletteSize*sizeof(PALETTEENTRY));
    pPal->palVersion=0x300;
    pPal->palNumEntries = paletteSize;
    //建一个简单的RGB调色板
    {
        int redMask = (1 << pfd.cRedBits) - 1;
        int greemMask = (1 << pfd.cGreenBits) - 1;
        int blueMask = (1 << pfd.cBlueBits) - 1;
        int i;
        for(i=0;i<paletteSize;i++){
            pPal->palPalEntry[i].peRed =
            (((i >> pfd.cRedShift) & redMask) * 255)/greemMask;
            //pPal->palPalEntry[i]-peGreen =  

        }
    }  

}  

LRESULT CALLBACK WindowProc(HWND, UINT, WPARAM, LPARAM);
void EnableOpenGL(HWND hwnd, HDC*, HGLRC*);
void DisableOpenGL(HWND, HDC, HGLRC);  

int WINAPI WinMain(HINSTANCE hInstance,
                   HINSTANCE hPrevInstance,
                   LPSTR lpCmdLine,
                   int nCmdShow)
{
    WNDCLASSEX wcex;
    HWND hwnd;
    HDC hDC;
    HGLRC hRC;
    MSG msg;
    BOOL bQuit = FALSE;
    float theta = 0.0f;  

    /* register window class */
    wcex.cbSize = sizeof(WNDCLASSEX);
    wcex.style = CS_HREDRAW|CS_VREDRAW;//CS_OWNDC;
    wcex.lpfnWndProc = WindowProc;
    wcex.cbClsExtra = 0;
    wcex.cbWndExtra = 0;
    wcex.hInstance = hInstance;
    wcex.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
    wcex.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
    wcex.lpszMenuName = NULL;
    wcex.lpszClassName = "GLSample";
    wcex.hIconSm = LoadIcon(NULL, IDI_APPLICATION);;  

    if (!RegisterClassEx(&wcex))
        return 0;  

    /* create main window */
    hwnd = CreateWindowEx(0,
                          "GLSample",
                          windowName,//"OpenGL Sample",
                          WS_OVERLAPPEDWINDOW/*后面是后来加的*/|WS_CLIPCHILDREN|WS_CLIPSIBLINGS,
                          winX,//CW_USEDEFAULT,
                          winY,//CW_USEDEFAULT,
                          winWidth,//256,
                          winHeight,//256,
                          NULL,
                          NULL,
                          hInstance,
                          NULL);  

    ShowWindow(hwnd, nCmdShow);  

    /* enable OpenGL for the window */
    //setupPixelFormat(hwnd, &hDC, &hRC);
    EnableOpenGL(hwnd, &hDC, &hRC);
    init();  

    /* program main loop */
    while (!bQuit)
    {
        /* check for messages */
        if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
        {
            /* handle or dispatch messages */
            if (msg.message == WM_QUIT)
            {
                bQuit = TRUE;
            }
            else
            {
                TranslateMessage(&msg);
                DispatchMessage(&msg);
            }
        }
        else if(0)
        {
            /* OpenGL animation code goes here */  

            glClearColor(0.5f, 1.0f, 0.5f, 0.5f);
            glClear(GL_COLOR_BUFFER_BIT);  

            glPushMatrix();
            glRotatef(theta, 0.0f, 0.0f, 1.0f);  

            glBegin(GL_TRIANGLES);  

                glColor3f(0.5f, 5.0f, 1.0f);   glVertex2f(0.0f,   1.0f);
                glColor3f(0.0f, 1.0f, 0.0f);   glVertex2f(0.87f,  -0.5f);
                glColor3f(1.0f, 5.0f, 0.5f);   glVertex2f(-0.87f, -0.5f);  

            glEnd();  

            glPopMatrix();  

            SwapBuffers(hDC);  

            theta += 1.0f;
            //Sleep (1);
        }
        else{
            glPushMatrix();
            glRotatef(theta, 0.0f, 0.0f, 1.0f);
            redraw(hDC);//立方体  须要初始化init（）函数
            glPopMatrix();
            theta += 1.0f;
        }
    }  

    /* shutdown OpenGL */
    DisableOpenGL(hwnd, hDC, hRC);  

    /* destroy the window explicitly */
    DestroyWindow(hwnd);  

    return msg.wParam;
}  

LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    switch (uMsg)
    {
        /*case WM_CREATE:
            hDC = GetDC(hwnd);
            setupPalette(hDC);
            hGLRC=wglCreateContext(hDC);
            wglMakeCurrent(hDC,hGLRC);
            init();
            return 0;*/
        case WM_CLOSE:
            PostQuitMessage(0);
        break;  

        case WM_DESTROY:
            /*//------------------
            if(hGLRC){
                wglMakeCurrent(NULL,NULL);
                wglDeleteContext(hGLRC);
            }
            if(hPalette){
                DeleteObject(hPalette);
            }
            ReleaseDC(hwnd,hDC);
            PostQuitMessage(0);
            //====================*/
            return 0;
        //------------------------
        case WM_SIZE:
            //跟踪窗体大小改变
            hGLRC=(struct HGLRC__ *)1;
            if(hGLRC){
                winWidth=(int)LOWORD(lParam);
                winHeight=(int)LOWORD(lParam);
                resize();
                return 0;
            }
        case WM_PALETTECHANGED:
            //假设它不是当前窗体，则实现调色板与hDC的相应
            if(hGLRC && hPalette && (HWND) wParam != hwnd){
                UnrealizeObject(hPalette);
                SelectPalette(hDC,hPalette,FALSE);
                //ReadlizePalette(hDC);
                redraw(hDC);
                break;
            }
        break;
        //=========================
        case WM_KEYDOWN:
        {
            switch (wParam)
            {
                case VK_ESCAPE:
                    PostQuitMessage(0);
                break;
            }
        }
        break;  

        default:
            return DefWindowProc(hwnd, uMsg, wParam, lParam);
    }  

    return 0;
}  

void EnableOpenGL(HWND hwnd, HDC* hDC, HGLRC* hRC)
{
    PIXELFORMATDESCRIPTOR pfd;  

    int iFormat;  

    /* get the device context (DC) */
    *hDC = GetDC(hwnd);  

    /* set the pixel format for the DC */
    ZeroMemory(&pfd, sizeof(pfd));  

    pfd.nSize = sizeof(pfd);
    pfd.nVersion = 1;
    pfd.dwFlags = PFD_DRAW_TO_WINDOW |
                  PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
    pfd.iPixelType = PFD_TYPE_RGBA;
    pfd.cColorBits = 24;
    pfd.cDepthBits = 16;
    pfd.iLayerType = PFD_MAIN_PLANE;  

    iFormat = ChoosePixelFormat(*hDC, &pfd);  

    SetPixelFormat(*hDC, iFormat, &pfd);  

    /* create and enable the render context (RC) */
    *hRC = wglCreateContext(*hDC);  

    wglMakeCurrent(*hDC, *hRC);
}  

void DisableOpenGL (HWND hwnd, HDC hDC, HGLRC hRC)
{
    wglMakeCurrent(NULL, NULL);
    wglDeleteContext(hRC);
    ReleaseDC(hwnd, hDC);
} 

建立一个Win32project，如图；样例一是控制台project。

watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="">

效果；

遇到例如以下错误。

lftdemo2.cpp

e:\dddd13\opengl立方体demo\lftdemo2\lftdemo2.cpp(308) : error C2440: '=' : cannot convert from 'const int' to 'struct HGLRC__ *'

        Conversion from integral type to pointer type requires reinterpret_cast, C-style cast or function-style cast

运行 cl.exe 时出错.



把

hGLRC=1;

改为

hGLRC=(struct HGLRC__ *)1;

GL_QUADS：绘制由四个顶点组成的一组单独的四边形。顶点4n－3、4n－2、4n－1和4n定义了第n个四边形。总共绘制N/4个四边形

三 3D颜色立方体

代码：

#include <stdio.h>
#define GLUT_DISABLE_ATEXIT_HACK
#include <gl/glut.h>
//#pragma comment(lib, "glut32.lib")  

GLfloat AngleX;
GLfloat AngleY;  

void display(void)
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);  

    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();  

    glPushMatrix();
    {
        glRotatef(AngleX,1.0f,0.0f,0.0f);
        glRotatef(AngleY,0.0f,1.0f,0.0f);  

        glBegin(GL_POLYGON); //前表面
        glColor3ub((GLubyte)255,(GLubyte)255,(GLubyte)255);//颜色设置为白色
        glVertex3f(50.0f,50.0f,50.0f);  

        glColor3ub((GLubyte)255,(GLubyte)255,(GLubyte)0);//颜色设置为黄色
        glVertex3f(50.0f,-50.0f,50.0f);  

        glColor3ub((GLubyte)255,(GLubyte)0,(GLubyte)0);//颜色设置为红色
        glVertex3f(-50.0f,-50.0f,50.0f);  

        glColor3ub((GLubyte)255,(GLubyte)0,(GLubyte)255);//颜色设置为白色
        glVertex3f(-50.0f,50.0f,50.0f);
        glEnd();  

        glBegin(GL_POLYGON); //后表面
        glColor3f(0.0f,1.0f,1.0f);//颜色设置为青色
        glVertex3f(50.0f,50.0f,-50.0f);  

        glColor3f(0.0f,1.0f,0.0f);//颜色设置为绿色
        glVertex3f(50.0f,-50.0f,-50.0f);  

        glColor3f(0.0f,0.0f,0.0f);//颜色设置为黑色
        glVertex3f(-50.0f,-50.0f,-50.0f);  

        glColor3f(0.0f,0.0f,1.0f);//颜色设置为蓝色
        glVertex3f(-50.0f,50.0f,-50.0f);
        glEnd();  

        glBegin(GL_POLYGON); //上表面
        glColor3d(0.0,1.0,1.0);//颜色设置为青色
        glVertex3f(50.0f,50.0f,-50.0f);  

        glColor3d(1.0,1.0,1.0);//颜色设置为白色
        glVertex3f(50.0f,50.0f,50.0f);  

        glColor3d(1.0,0.0,1.0);//颜色设置为品红色
        glVertex3f(-50.0f,50.0f,50.0f);  

        glColor3d(0.0,0.0,1.0);//颜色设置为蓝色
        glVertex3f(-50.0f,50.0f,-50.0f);
        glEnd();  

        glBegin(GL_POLYGON); //下表面
        glColor3ub(0u,255u,0u);//颜色设置为绿色
        glVertex3f(50.0f,-50.0f,-50.0f);  

        glColor3ub(255u,255u,0u);//颜色设置为黄色
        glVertex3f(50.0f,-50.0f,50.0f);  

        glColor3ub(255u,0u,0u);//颜色设置为红色
        glVertex3f(-50.0f,-50.0f,50.0f);  

        glColor3ub(0u,0u,0u);//颜色设置为黑色
        glVertex3f(-50.0f,-50.0f,-50.0f);
        glEnd();  

        glBegin(GL_POLYGON); //左表面
        glColor3ub((GLubyte)255,(GLubyte)255,(GLubyte)255);//颜色设置为白色
        glVertex3f(50.0f,50.0f,50.0f);  

        glColor3ub((GLubyte)0,(GLubyte)255,(GLubyte)255);//颜色设置为青色
        glVertex3f(50.0f,50.0f,-50.0f);  

        glColor3ub((GLubyte)0,(GLubyte)255,(GLubyte)0);//颜色设置为绿色
        glVertex3f(50.0f,-50.0f,-50.0f);  

        glColor3ub((GLubyte)255,(GLubyte)255,(GLubyte)0);//颜色设置为黄色
        glVertex3f(50.0f,-50.0f,50.0f);
        glEnd();  

        glBegin(GL_POLYGON); //右表面
        glColor3f(1.0f,0.0f,1.0f);//颜色设置为品红色
        glVertex3f(-50.0f,50.0f,50.0f);  

        glColor3f(0.0f,0.0f,1.0f);//颜色设置为蓝色
        glVertex3f(-50.0f,50.0f,-50.0f);  

        glColor3f(0.0f,0.0f,0.0f);//颜色设置为黑色
        glVertex3f(-50.0f,-50.0f,-50.0f);  

        glColor3f(1.0f,0.0f,0.0f);//颜色设置为红色
        glVertex3f(-50.0f,-50.0f,50.0f);
        glEnd();
    }
    glPopMatrix();  

    glutSwapBuffers();
}  

void reshape(int w, int h)
{
    GLfloat aspect = (GLfloat)w / (GLfloat)h;
    GLfloat nRange = 100.0f;  

    glViewport(0,0,w,h);  

    glMatrixMode(GL_PROJECTION); //将当前矩阵指定为投影模式
    glLoadIdentity();  

    //设置三维投影区  

    if (w<=h)
    {
        glOrtho(-nRange, nRange, -nRange * aspect, nRange * aspect, -nRange, nRange);
    }
    else
    {
        glOrtho(-nRange, nRange, -nRange / aspect, nRange / aspect, -nRange, nRange);
    }
}  

void key_board(GLint key,GLint x,GLint y)
{
    if(key == GLUT_KEY_UP)
    {
        AngleX -= 5.0f;
    }
    if(key == GLUT_KEY_DOWN)
    {
        AngleX += 5.0f;
    }
    if(key == GLUT_KEY_LEFT)
    {
        AngleY -= 5.0f;
    }
    if(key == GLUT_KEY_RIGHT)
    {
        AngleY += 5.0f;
    }
    if(AngleX > 355.0f)
    {
        AngleX = 0.0f;
    }
    if(AngleX < 0.0f)
    {
        AngleX = 355.0f;
    }
    if(AngleY > 355.0f)
        AngleY = 0.0f;  

    if(AngleY < 0.0f)
    {
        AngleY = 355.0f;
    }
    glutPostRedisplay();
}  

void init()
{
    AngleX = 45.0f;
    AngleY = 315.0f;  

    glClearColor(0.0f, 0.0f, 0.0f, 1.0f);  

    glEnable(GL_DEPTH_TEST);
    glEnable(GL_DITHER);
    glShadeModel(GL_SMOOTH);
}
void main(int argc,char* argv[])
{
    glutInit(&argc,argv);
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
    glutInitWindowSize(480,480);
    glutCreateWindow("OpenGL颜色立方体");  

    glutReshapeFunc(reshape);
    glutDisplayFunc(display);
    glutSpecialFunc(key_board); //设置处理特殊击键的回调函数  

    init();  

    glutMainLoop();
}

效果：

watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="">

四 光照立方体效果

代码：

#include <windows.h>
#include <gl/gl.h>
#include <gl/glu.h>  

#define WIN32_LEAN_AND_MEAN

//#pragma comment(lib, "openGL32.lib")
//#pragma comment(lib, "glu32.lib")
//#pragma comment(lib, "glaux.lib")
float angle=0.0f;
HDC g_HDC;
float legAngle[2]={0.0f,0.0f};
float armAngle[2]={0.0f,0.0f};
float ambientLight[]={0.1f,0.3f,0.8f,1.0f};  //环境光
float diffuseLight[]={0.25f,0.25f,0.25f,1.0f}; //散射光
float lightPosition[]={0.0f,0.0f,1.0f,0.0f}; //光源位置
//材质变量
float matAmbient[]={1.0f,1.0f,1.0f,1.0f};
float matDiff[]={1.0f,1.0f,1.0f,1.0f};
//初始化
void Initialize()
{
 glClearColor(0.0f,0.0f,0.0f,0.0f);   //清理颜色为黑色
 glShadeModel(GL_SMOOTH);     //使用平滑明暗处理
 glEnable(GL_DEPTH_TEST);     //剔除隐藏面
 glEnable(GL_CULL_FACE);      //不计算多边形背面
 glFrontFace(GL_CCW);      //多边形逆时针方向为正面
 glEnable(GL_LIGHTING);      //启用光照
 //为LIGHT0设置析质
 glMaterialfv(GL_FRONT,GL_AMBIENT,matAmbient);
 glMaterialfv(GL_FRONT,GL_DIFFUSE,matDiff);
 //如今開始调协LIGHT0
 glLightfv(GL_LIGHT0,GL_AMBIENT,ambientLight); //设置环境光分量
 glLightfv(GL_LIGHT0,GL_DIFFUSE,diffuseLight); //设置散射光分量
 glLightfv(GL_LIGHT0,GL_POSITION,lightPosition); //设置光源在场景中的位置
 //启用光
 glEnable(GL_LIGHT0);
}
//绘制单位立方体
void DrawCube(float xPos,float yPos,float zPos)
{
 glPushMatrix();
  glTranslatef(xPos,yPos,zPos);
  glBegin(GL_QUADS);    //顶面
  glNormal3f(0.0f,1.0f,0.0f);
  glVertex3f(0.5f,0.5f,0.5f);
  glVertex3f(0.5f,0.5f,-0.5f);
  glVertex3f(-0.5f,0.5f,-0.5f);
  glVertex3f(-0.5f,0.5f,0.5f);
  glEnd();
  glBegin(GL_QUADS);    //底面
  glNormal3f(0.0f,-1.0f,0.0f);
  glVertex3f(0.5f,-0.5f,0.5f);
  glVertex3f(-0.5f,-0.5f,0.5f);
  glVertex3f(-0.5f,-0.5f,-0.5f);
  glVertex3f(0.5f,-0.5f,-0.5f);
  glEnd();
  glBegin(GL_QUADS);    //前面
  glNormal3f(0.0f,0.0f,1.0f);
  glVertex3f(0.5f,0.5f,0.5f);
  glVertex3f(-0.5f,0.5f,0.5f);
  glVertex3f(-0.5f,-0.5f,0.5f);
  glVertex3f(0.5f,-0.5f,0.5f);
  glEnd();
  glBegin(GL_QUADS);    //背面
  glNormal3f(0.0f,0.0f,-1.0f);
  glVertex3f(0.5f,0.5f,-0.5f);
  glVertex3f(0.5f,-0.5f,-0.5f);
  glVertex3f(-0.5f,-0.5f,-0.5f);
  glVertex3f(-0.5f,0.5f,-0.5f);
  glEnd();
  glBegin(GL_QUADS);    //左面
  glNormal3f(-1.0f,0.0f,0.0f);
  glVertex3f(-0.5f,0.5f,0.5f);
  glVertex3f(-0.5f,0.5f,-0.5f);
  glVertex3f(-0.5f,-0.5f,-0.5f);
  glVertex3f(-0.5f,-0.5f,0.5f);
  glEnd();
  glBegin(GL_QUADS);    //右面
  glNormal3f(1.0f,0.0f,0.0f);
  glVertex3f(0.5f,0.5f,0.5f);
  glVertex3f(0.5f,-0.5f,0.5f);
  glVertex3f(0.5f,-0.5f,-0.5f);
  glVertex3f(0.5f,0.5f,-0.5f);
  glEnd();
 glPopMatrix();
}
//处理场景的绘制
void Render()
{
 glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); //清理颜色/深度缓存
 glLoadIdentity();     //复位旋转角度计数器
 angle=angle+0.1f;     //递增旋转角度计数器
 if(angle>=360.0f)     //假设已旋转一周,复位计数器
  angle=0.0f;
 glTranslatef(0.0f,0.0f,-3.0f);
 glRotatef(angle,1.0f,0.0f,0.0f);
 glRotatef(angle,0.0f,1.0f,0.0f);
 glRotatef(angle,0.0f,0.0f,1.0f);
 DrawCube(0.0f,0.0f,0.0f);
 glFlush();
 SwapBuffers(g_HDC);     //交换前后缓存
}
//为设备环境设置像素格式的函数
void SetupPixelFormat(HDC hDC)
{
 int nPixelFormat;
 static PIXELFORMATDESCRIPTOR pfd=
 {
  sizeof(PIXELFORMATDESCRIPTOR),
   1,
   PFD_DRAW_TO_WINDOW|PFD_SUPPORT_OPENGL|PFD_DOUBLEBUFFER,
   PFD_TYPE_RGBA,
   32,
  0,0,0,0,0,0,
  0,
  0,
  0,
  0,0,0,0,
  16,
  0,
  0,
  PFD_MAIN_PLANE,
  0,
  0,0,0
 };
 nPixelFormat=ChoosePixelFormat(hDC,&pfd);
 SetPixelFormat(hDC,nPixelFormat,&pfd);
}
LRESULT CALLBACK WndProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
{
 static HGLRC hRC;
 static HDC hDC;
 int width,height;
 switch(message)
 {
 case WM_CREATE:
  hDC=GetDC(hwnd);
  g_HDC=hDC;
  SetupPixelFormat(hDC);
  hRC=wglCreateContext(hDC);
  wglMakeCurrent(hDC,hRC);
  return 0;
  break;

 case WM_CLOSE:
  wglMakeCurrent(hDC,NULL);
  wglDeleteContext(hRC);
  PostQuitMessage(0);
  return 0;
  break;

 case WM_SIZE:
  height=HIWORD(lParam);
  width=LOWORD(lParam);
  if(height==0)
   height=1;
  glViewport(0,0,width,height);
  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();
  gluPerspective(54.0f,(GLfloat)width/(GLfloat)height,1.0f,1000.0f);
  glMatrixMode(GL_MODELVIEW);
  glLoadIdentity();
  return 0;
  break;
 default:
  break;
 }
 return (DefWindowProc(hwnd,message,wParam,lParam));
}
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nShowCmd)
{
 WNDCLASSEX windowClass;
 HWND hwnd;
 MSG msg;
 bool done;
 int width=800;
 int height=600;
 int bits=32;
 windowClass.cbSize=sizeof(WNDCLASSEX);
 windowClass.style=CS_HREDRAW|CS_VREDRAW;
 windowClass.lpfnWndProc=WndProc;
 windowClass.cbClsExtra=0;
 windowClass.cbWndExtra=0;
 windowClass.hInstance=hInstance;
 windowClass.hIcon=LoadIcon(NULL,IDI_APPLICATION);
 windowClass.hCursor=LoadCursor(NULL,IDC_ARROW);
 windowClass.hbrBackground=NULL;
 windowClass.lpszMenuName=NULL;
 windowClass.lpszClassName="MyClass";
 windowClass.hIconSm=LoadIcon(NULL,IDI_WINLOGO);
 if(!RegisterClassEx(&windowClass))
  return 0;
 hwnd=CreateWindowEx(WS_EX_APPWINDOW|WS_EX_WINDOWEDGE,
  "MyClass",
  "OpenGL Cube",
  WS_OVERLAPPEDWINDOW|WS_CLIPCHILDREN|WS_CLIPSIBLINGS,
  0,0,
  800,600,
  NULL,
  NULL,
  hInstance,
  NULL);
 if(!hwnd)
  return 0;
 ShowWindow(hwnd,SW_SHOW);
 UpdateWindow(hwnd);
 Initialize();  //初始化绘制环境
 done=false;
 while(!done)
 {
  PeekMessage(&msg,hwnd,NULL,NULL,PM_REMOVE);
  if(msg.message==WM_QUIT)
  {
   done=true;
  }
  else
  {
   Render();
   TranslateMessage(&msg);
   DispatchMessage(&msg);
  }
 }
 return msg.wParam;
}

效果：

watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="">

五 链接

http://blog.csdn.net/djl4104804/article/details/8131072

opengl库和函数具体解释