作業

GLUquadric * quad=NULL;
float angle=0;
void display()
{
glEnable(GL_DEPTH_TEST);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(angle,0,1,0);
glRotatef(90,1,0,0);
gluQuadricTexture(quad,true);
gluSphere(quad,1,30,30);
glPopMatrix();
glutSwapBuffers();
}