球的旋转

深山小竹

在绘制太阳系模型时，当行星绕太阳旋转是，为什么太阳会闪烁呢？请指点一下，我的程序如下,谢谢
#include <stdlib.h>
#include <stdio.h>
#include <GL/glut.h>
static int axis=0, year=0,day=0;
void init()
{
        GLfloat mat_specular[]={1.0,1.0,1.0,1.0};
        GLfloat mat_shininess[]={100.0};
        GLfloat light_positiong[]={1.0,1.0,1.0,1.0};
        GLfloat white_light[]={1.0,1.0,1.0,1.0};
        GLfloat lmodel_ambient[]={0.1,0.1,0.1,1.0};
        glClearColor(0,0,0,0);
        glShadeModel(GL_SMOOTH);
        glMaterialfv(GL_FRONT,GL_SPECULAR,mat_specular);
        glMaterialfv(GL_FRONT,GL_SHININESS,mat_shininess);
        glLightfv(GL_LIGHT0,GL_POSITION,light_positiong);
        glLightfv(GL_LIGHT0,GL_DIFFUSE,white_light);
        glLightfv(GL_LIGHT0,GL_SPECULAR,white_light);
        glLightModelfv(GL_LIGHT_MODEL_AMBIENT,lmodel_ambient);
        glEnable(GL_LIGHTING);
        glEnable(GL_LIGHT0);
        glEnable(GL_DEPTH_TEST);
}
void display()
{
        glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
        glColor3f(1.0,1.0,1.0);
        glPushMatrix();
        glColor3f(0.0,1.0,1.0);
        glutSolidSphere(1.0,20,16);
        glRotatef((GLfloat)year,0.0,1.0,0.0);
        glTranslatef(2.0,0.0,0.0);
        glRotatef((GLfloat)day,0.0,1.0,0.0);
        glColor3f(0.0,1.0,0.0);
        glutSolidSphere(0.2,10,8);
        glPopMatrix();
        glFlush();
        glutSwapBuffers();
}
void reshape(int w,int h)
{
        glViewport(0,0,(GLsizei)w,(GLsizei)h);
        glMatrixMode(GL_PROJECTION);
        glLoadIdentity();
        gluPerspective(60.0,(GLfloat)w/(GLfloat)h,1.0,20.0);
        glMatrixMode(GL_MODELVIEW);
        glLoadIdentity();
        gluLookAt(0.0,0.0,5.0,0.0,0.0,0.0,0.0,1.0,0.0);
}
void keyboard(unsigned char key,int x,int y)
{
        switch(key){
        case 'd':
                day=(day+10)%720;
                glutPostRedisplay();
                break;
        case'D':
                day=(day-10)%360;
                glutPostRedisplay();
                break;
        case 'y':
                year=(year+5)%720;
                glutPostRedisplay();
                break;
        case 'Y':
                year=(year-5)%360;
                glutPostRedisplay();
                break;
        default:
                break;
        }
}
int main(int argc,char**argv)
{
        glutInit(&argc,argv);
        glutInitDisplayMode(GLUT_SINGLE|GLUT_RGB);
        glutInitWindowSize(500,500);
        glutInitWindowPosition(100,100);
        glutCreateWindow(argv[0]);
        init();
        glutDisplayFunc(display);
        glutReshapeFunc(reshape);
        glutKeyboardFunc(keyboard);
        glEnable(GL_DEPTH_TEST);
        glutMainLoop();
        return 0;
}

snhun

这个叫什么“GLUT”（饥饿了又踢）的东西，我从来就不敢碰
对不起啦

Timeshift

你光照有问题~。~

glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);

void display()

这两句放 display中试下~

Timeshift

这glut咋了，用不用openGL还不是一个样。。。不过就跨平台和功能上来说openGL，还是配合wxwidgets好。