计算机图形学OpenGL

                                                                                                                           — —键盘控制三维汽车

       最终实现效果：

     

   

  

   源代码：

#include "stdafx.h"
#include <windows.h>
#include <gl/gl.h>
#include <gl/glu.h>
#include <gl/glut.h>
#include <math.h>
static GLfloat xRot = 0.0f;
static GLfloat yRot = 0.0f;
void Display(void)
{   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glPushMatrix();
   	glRotatef(xRot, 1.0f, 0.0f, 0.0f);  //绕x轴旋转
	glRotatef(yRot, 0.0f, 1.0f, 0.0f);  //绕y轴旋转
	//车下半部
	glBegin(GL_POLYGON);
		glColor3f(0.1, 0.1, 0.8);
		glVertex3f(-40.0f,0.0f,15.0f);
		glVertex3f(40.0f,0.0f,15.0f);
		glColor3f(1, 0.5, 0.8);
		glVertex3f(40.0f,-15.0f,15.0f);
		glVertex3f(-40.0f,-15.0f,15.0f);
	glEnd();
	glBegin(GL_POLYGON);
		glColor3f(0.3, 0.2, 0.5);
		glVertex3f(40.0f,0.0f,-15.0f);
		glVertex3f(40.0f,0.0f,15.0f);
		glVertex3f(40.0f,-15.0f,15.0f);
		glVertex3f(40.0f,-15.0f,-15.0f);
	glEnd();
	glBegin(GL_POLYGON);
		glColor3f(0.3, 0.1, 0.3);
		glVertex3f(-40.0f,0.0f,-15.0f);
		glVertex3f(-40.0f,0.0f,15.0f);
		glVertex3f(-40.0f,-15.0f,15.0f);
		glVertex3f(-40.0f,-15.0f,-15.0f);
	glEnd();
    glBegin(GL_POLYGON);
		glColor3f(0.1, 0.1, 0.8);
		glVertex3f(-40.0f,0.0f,-15.0f);
		glVertex3f(40.0f,0.0f,-15.0f);		
		glColor3f(1, 0.5, 0.8);
		glVertex3f(40.0f,-15.0f,-15.0f);
		glVertex3f(-40.0f,-15.0f,-15.0f);
	glEnd();
	glBegin(GL_POLYGON);
		glColor3f(0, 0, 1);
		glVertex3f(-40.0f,0.0f,15.0f);
		glVertex3f(-40.0f,0.0f,-15.0f);
		glVertex3f(40.0f,0.0f,-15.0f);
		glVertex3f(40.0f,0.0f,15.0f);
	glEnd();
	glBegin(GL_POLYGON);
		glColor3f(0.8, 0.5, 0.2);
		glVertex3f(-40.0f,-15.0f,15.0f);
		glVertex3f(-40.0f,-15.0f,-15.0f);
		glVertex3f(40.0f,-15.0f,-15.0f);
		glVertex3f(40.0f,-15.0f,15.0f);
	glEnd();
	//车上半部
	glBegin(GL_POLYGON);
		glColor3f(0, 0, 1);
		glVertex3f(-20.0f,0.0f,15.0f);
		glVertex3f(-10.0f,10.0f,15.0f);
		glVertex3f(20.0f,10.0f,15.0f);
		glVertex3f(25.0f,0.0f,15.0f);
	glEnd();
	glBegin(GL_POLYGON);
		glColor3f(0, 0, 1);
		glVertex3f(-20.0f,0.0f,-15.0f);
		glVertex3f(-10.0f,10.0f,-15.0f);
		glVertex3f(20.0f,10.0f,-15.0f);
		glVertex3f(25.0f,0.0f,-15.0f);
	glEnd();
	glBegin(GL_POLYGON);
		glColor3f(0, 1, 1);
    	glVertex3f(-10.0f,10.0f,15.0f);
    	glVertex3f(-10.0f,10.0f,-15.0f);
		glVertex3f(20.0f,10.0f,-15.0f);
		glVertex3f(20.0f,10.0f,15.0f);
	glEnd();
    glBegin(GL_POLYGON);
		glColor3f(0.5, 0.8, 0.8);
    	glVertex3f(-10.0f,10.0f,15.0f);
		glVertex3f(-20.0f,0.0f,15.0f);
		glVertex3f(-20.0f,0.0f,-15.0f);
    	glVertex3f(-10.0f,10.0f,-15.0f);
	glEnd();
	glBegin(GL_POLYGON);
		glColor3f(0, 0.5, 0.5);
		glVertex3f(20.0f,10.0f,15.0f);
		glVertex3f(20.0f,10.0f,-15.0f);
		glVertex3f(25.0f,0.0f,-15.0f);
		glVertex3f(25.0f,0.0f,15.0f);
	glEnd();
	glBegin(GL_POLYGON);
		glColor3f(0, 0, 1);
		glVertex3f(-30.0f,-15.0f,15.0f);
		glVertex3f(-30.0f,-15.0f,-15.0f);
		glVertex3f(30.0f,-15.0f,-15.0f);
		glVertex3f(30.0f,-15.0f,15.0f);
	glEnd();
	//车轮
	glColor3f(1, 0, 0);
	glTranslated(-20.0f,-15.0f,15.0f);
    glutSolidTorus(2,5,5,100);
	glTranslated(0.0f,0.0f,-30.0f);
    glutSolidTorus(2,5,5,100);
	glTranslated(45.0f,0.0f,0.0f);
    glutSolidTorus(2,5,5,100);
	glTranslated(0.0f,0.0f,30.0f);
    glutSolidTorus(2,5,5,100);
    glPopMatrix();
	glutSwapBuffers();   //交换缓冲
}
//定义键盘控制函数
void SpecialKeys(int key, int x, int y)
{   if(key == GLUT_KEY_UP)		xRot-= 5.0f;   
	if(key == GLUT_KEY_DOWN)	xRot += 5.0f;
	if(key == GLUT_KEY_LEFT)	yRot -= 5.0f;
	if(key == GLUT_KEY_RIGHT)	yRot += 5.0f;
	glutPostRedisplay(); // 刷新窗口
}
int main(int argc, char* argv[])
{   glutInit(&argc, argv);
	glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
	glutCreateWindow("车");
	glClearColor(0.0f, 0.0f, 0.0f, 1.0f );
	glEnable(GL_DEPTH_TEST);	
	glShadeModel(GL_SMOOTH);
	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	glOrtho (-100, 100, -100, 100,-100, 100);
	glutSpecialFunc(SpecialKeys);  //注册功能键回调函数
	glutDisplayFunc(Display);
	glutMainLoop();
	return 0;
}