,GL_SHININESS,mat_shininess);

glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);

glLightfv(GL_LIGHT0,GL_POSITION, light_position);

glEnable(GL_LIGHTING);

glEnable(GL_LIGHT0);

glDepthFunc(GL_LESS);

glEnable(GL_DEPTH_TEST);

}

void CALLBACK display()

{

glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

auxSolidSphere(1.0); // 绘制半径为1.0的实体球

glFlush(); // 强制输出图像

auxSwapBuffers(); // 交换绘图缓存

Sleep(100);

}

void CALLBACK Idledisplay()

{

// x,y满足x2+y2=0.01。这样可以使物体沿该圆轨迹运动。

static float x=-.1,y=0.0;

static BOOL mark=TRUE;

static float step=.01;

x+=step;

if(x<=.1&&x>=-.1)

{

if(step>0)

y=sqrt(.01-x*x);

else

y=-sqrt(.01-x*x);

glTranslatef(x,y,0);

}

else

{

step=0-step;

}

display();

}

void CALLBACK myReshape(GLsizei w,GLsizei h)

{

glViewport(0,0,w,h);

glMatrixMode(GL_PROJECTION);

glLoadIdentity();

if(w<=h)

glOrtho(-3.5,3.5,-3.5*(GLfloat)w/(GLfloat)h, 3.5*(GLfloat)w/(GLfloat)h,-10,10);

else

glOrtho(-3.5*(GLfloat)w/(GLfloat)h,3.5* (GLfloat)w/(GLfloat)h,-3.5,3.5,-10,10);

glMatrixMode(GL_MODELVIEW);

glLoadIdentity();

}

void main()

{

auxInitDisplayMode(AUX_DOUBLE|AUX_RGBA);

auxInitPosition(0,0,400,400);

auxInitWindow(" circle ");

myinit();

auxReshapeFunc(myReshape);

auxIdleFunc(Idledisplay);

auxMainLoop(display);

}

在Visual C++ 2005下编译

cl a.cpp /linkopengl32.lib glu32.lib glaux.lib user32.lib gdi32.lib kernel32.lib advapi32.lib