关于OpenGL的一点小问题。
我初学OpenGL编程,还没有入门。试了一下书上的hello程序,却说头文件不存在。
请给位指点一下,教我怎么入门做动画。我把那个程序贴出来,能不能告诉我错在哪里?
#include "stdafx.h"
#include<stdlib.h>
#include<GL\glut.h>
static Glfloat spin=0.0;
void init(void)
{
glClearColor(0.0,0.0,0.0,0.0);
glShadeModel(GL_GLAT);
}
void display(void)
{
glClear(GL_COLOR_BUFFER_BIT);
glPushMatrix();
glRotatef(spin,0.0,0.0,1.0);
glColor3f(1.0,1.0,1.0);
glRectf(-25.0,-25.0,25.0,25.0);
glPopMatrix();
glutSwapBuffers();
}
void spinDisplay(void)
{
spin=spin+2.0;
if(spin>360.0)
spin=spin-360.0;
glutPostRedisplay();
}
void reshape(int w,int h)
{
glViewport(0,0,(GLsizei)w,(GLsizei)h);
glMatrixMode(GL_PEOJECTION);
glLoadIdentity();
glOrtho(-50.0,50.0,-50.0,50.0,-1.0,1.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
void mouse(int button,int state,int x,int y)
{
switch(botton){
case GLUT_LEFT_BUTTON:
if(state==GLUT_DOWN)
glutIdleFunc(spinDisplay);
break;
case GLUT_MIDDLE_BUTTON:
if(state=GLUT_DOWN)
glutIdleFunc(NULL);
break;
default:
break;
}
}
int main(int argc, char* argv[])
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB);
glutInitWindowSize(250,250);
glutInitWindowPosition(100,100);
glutCreateWindow(argv[0]);
init();
glutDisplayFunc(display);
glutReshapeFunc(reshape);
glutMainLoop();
glutMainLoop();
return 0;
}
要用OpenGL编程一般需要哪些头文件啊?这些头文件是不是编译器里原来就有的?