求改错拜托了
VC++6.0 win32 console application工程opengl
#include <windows.h>
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <sys/types.h>
#include <GL/glaux.h>
#define M_PI 3.14159265f
#define sinf(x)(float)sin((x))
#define cosf(x)(float)cos((x))
#define XSIZE 100
#define YSIZE 75
#define RINGS 5
#define BLUERING 0
#define BLACKRING 1
#define REDRING 2
#define YELLOWRING 3
#define GREENRING 4
#define BACKROUND 8
enum{
BLACK=0,
RED,
GREEN,
YELLOW,
BLUE,
MAGENTA,
CYAN,
WHITE
};
typedef short Point[2];
GLenum directRender;
unsigned char rgb_colors[RINGS][3];
int mapped_colors[RINGS];
float dests[RINGS][3];
float offsets[RINGS][3];
float angs[RINGS];
float rotAxis[RINGS][3];
int iters[RINGS];
GLuint theTorus;
void FillTorus(float rc,int numc,float rt,int numt)
{
int i,j,k;
float s,t;
float x,y,z;
float pi,twopi;
pi =M_PI;
twopi=2*pi;
for (i=0;i<=numc;i++)
{
glBegin (GL_QUAD_STRIP);
for (j=0;j<=numt;j++)
{
for (k=1;k>=0;k--)
{
s=(float)((i+k)%numc+0.5f);
t=(float)(j%numt);
x=cosf(t*twopi/numt)*cosf(s*twopi/numc);
y=sinf(t*twopi/numt)*cosf(s*twopi/numc);
z=sinf(s*twopi/numc);
glNormal3f(x,y,z);
x=(rt+rc*cosf(s*twopi/numc))*cosf(t*twopi/numt);
y=(rt+rc*cosf(s*twopi/numc))*sinf(t*twopi/numt);
z=rc*sinf(s*twopi/numc);
glVertex3f(x,y,z);
}
}
glEnd();
}
}
float CLamp(int iters_left,float t)
{
if(iters_left<3)
{
return 0.0;
}
return (iters_left-2)*t/iters_left;
}
void CALLBACK DrawScene(void)
{
int i;
glPushMatrix();
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
gluLookAt(0,0,10,0,0,0,0,1,0);
for (i=0;i<RINGS;i++)
{
glColor3ubv(rgb_colors[i]);
glPushMatrix();
glTranslatef(dests[i][0]+offsets[i][0],dests[i][1]+offsets[i][1],dests[i][2]+offsets[i][2]);
glRotatef(angs[i],rotAxis[i][0],rotAxis[i][1],rotAxis[i][2]);
glCallList(theTorus);
glPopMatrix();
}
glPopMatrix();
auxSwapBuffers();
}
void CALLBACK Idle (void)
{
int i,j;
int more=GL_FALSE;
for (i=0;i<RINGS;i++)
{
if (iters[i])
{
for(j=0;j<3;j++)
{
offsets[i][j]=Clamp(iters[i],offsets[i][j]);
}
angs[i]=Clamp(iters[i],angs[i]);
iters[i]--;
more=GL_TRUE;
}
}
if (more)
{
DrawScene();
}
else
{
auxIdleFunc(NULL);
}
}
float MyRand(void)
{
return 10.0f*(((float)rand())/((float)RAND_MAX)-0.5f);
}
void ReInit(void)
{
int i;
float deviation;
deviation=MyRand()/2.0f;
deviation=deviation*deviation;
for (i=0;i<RINGS;i++)
{
offsets[i][0]=MyRand();
offsets[i][1]=MyRand();
offsets[i][2]=MyRand();
angs[i]=260.0f*MyRand();
rotAxis[i][0]=MyRand();
rotAxis[i][1]=MyRand();
rotAxis[i][2]=MyRand();
iters[i]=(int)(deviation*MyRand()+60);
}
}
void Init(void)
{
int i;
float top_y=1.0f;
float buttom_y=0.0f;
float top_z=0.15f;
float buttom_z=0.69f;
float spacing=2.5f;
static float lmodel_ambient[]={0.0f,0.0f,0.0f,0.0f};
static float lmodel_twoside[]={GL_FALSE};
static float lmodel_local[]={GL_FALSE};
static float light0_ambient[]={0.1f,0.1f,0.1f,0.1f};
static float light0_diffuse[]={1.0f,1.0f,1.0f,0.0f};
static float light0_position[]={0.8660254f,0.5f,1.0f,0.0f};
static float light0_specular[]={1.0f,1.0f,1.0f,0.0f};

static float bevel_mat_ambient[]={0.0f,0.0f,0.0f,1.0f};
static float bevel_mat_shininess[]={40.0f};
static float bevel_mat_specular[]={1.0f,1.0f,1.0f,0.0f};
static float bevel_mat_diffuse[]={1.0f,0.0f,0.0f,0.0f};
srand (time(NULL));
ReInit();
for (i=0;i<RINGS;i++)
{
rgb_colors[i][0]=rgb_colors[i][1]=rgb_colors[i][2]=0;
}
rgb_colors[BLUERING][2]=255;
rgb_colors[REDRING][0]=255;
rgb_colors[GREENRING][1]=255;
rgb_colors[YELLOWRING][0]=255;
rgb_colors[YELLOWRING][1]=255;
mapped_colors[BLUERING]=BLUE;
mapped_colors[REDRING]=RED;
mapped_colors[GREENRING]=GREEN;
mapped_colors[YELLOWRING]=YELLOW;
mapped_colors[BLACKRING]=BLACK;
dests[BLUERING][0]=-spacing;
dests[BLUERING][1]=top_y;
dests[BLUERING][2]=top_z;
dests[BLACKRING][0]=0.0;
dests[BLACKRING][1]=top_y;
dests[BLACKRING][2]=top_z;
dests[REDRING][0]=spacing;
dests[REDRING][1]=top_y;
dests[REDRING][2]=top_z;
dests[YELLOWRING][0]=-spacing/2.0f;
dests[YELLOWRING][1]=bottom_y;
dests[YELLOWRING][2]=bottom_z;
dests[GREENRING][0]=spacing/2.0f;
dests[GREENRING][1]=bottom_y;
dests[GREENRING][2]=bottom_z;
theTorus=glGenLists(1);
glNewList(theTorus,GL_COMPILE);
FillTorus(0.1f,8,1.0f,25);
glEndList();
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
glEnable(GL_DEPTH_TEST);
glClearDepth(1.0);
glClearColor(0.5,0.5,0.5,0.0);
glLightfv(GL_LIGHT0,GL_AMBIENT,light0_ambient);
glLightfv(GL_LIGHT0,GL_DIFFUSE,light0_diffuse);
glLightfv(GL_LIGHT0,GL_SPECULAR,light0_specular);
glLightfv(GL_LIGHT0,GL_POSITION,light0_position);
glEnable(GL_LIGHT0);
glLightModelfv(GL_LIGHT_MODEL_LOCAL_VIEWER,lmodel_local);
glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE,lmodel_twoside);
glLightModelfv(GL_LIGHT_MODEL_AMBIENT,lmodel_ambient);
glEnable(GL_LIGHTING);
glMaterialfv(GL_FRONT,GL_AMBIENT,bevel_mat_ambient);
glMaterialfv(GL_FRONT,GL_SHININESS,bevel_mat_shininess);
glMaterialfv(GL_FRONT,GL_SPECULAR,bevel_mat_specular);
glMaterialfv(GL_FRONT,GL_DIFFUSE,bevel_mat_diffuse);
glColorMaterial(GL_FRONT_AND_BACK,GL_DIFFUSE);
glEnable(GL_COLOR_MATERIAL);
glShadeModel(GL_SMOOTH);
glMatrixMode(GL_PROJECTION);
gluPerspective(45,1.33,0.1,100.0);
glMatrixMode(GL_MODELVIEW);
}
void CALLBACK Reshape(int width,int height)
{
glViewport(0,0,width,height);
}
void main(int argc,char**argv)
{
auxInitPosition(0,0,400,300);
auxInitDisplayMode(AUX_RGB|AUX_DOUBLE);
auxInitWindow("Olympic");
Init();
auxReshapeFunc(Reshape);
auxIdleFunc(Idle);
auxMainLoop(DrawScene);
}


[解决办法]
我晕，调试了下才知道，你的 调用处是 Clamp，字母l是小写的；而你的函数定义的地方却是 CLamp，字母L是大写的。
VC 里是区分大小写的。你自己更改过来就好了，要调用的地方和定义的地方名字都一致；

另外，bottom_y和bottom_z 未定义，也是由于你写错了，导致定义的和调用的名字不一致。

你定义的是 buttom_y、buttom_z；
而调用的是 bottom_y、bottom_z；