OpenGL学习——计算机图形学作业：简单的室内场景

其他 2018-07-05 11:04:10 阅读次数: 0

这是我最开始的完全由自己写的一段代码，是自己想象的一个简单的室内场景，加入旋转和视点变换效果，

最后的结果显示，静态效果很好，不过动画效果产生重影：

但是这始终是我学习OpenGL后第一次完整的写出的代码，值得纪念：

 

 

OpenGL学习——计算机图形学作业：简单的室内场景

OpenGL学习——计算机图形学作业：简单的室内场景

 

#include<gl/glut.h>
#include<stdio.h>
#include<math.h>
GLuint drawcube,drawsphere,drawteapot;
 
static GLfloat sx=0,sy= 0,sz=0;
static int lflag=GL_TRUE,rflag=GL_TRUE;
 void reshape(int w, int h)

{

         glViewport(0, 0, (GLsizei)w, (GLsizei)h) ;

         glMatrixMode(GL_PROJECTION) ;

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         glLoadIdentity() ;

        gluPerspective(90,w/h,0.5,200);  //透视效果
 
         glMatrixMode(GL_MODELVIEW) ;

         glLoadIdentity() ;

   gluLookAt(-30,30,70,0,0,0,0,10,0);//设置观察点
 
}

 
void init()
{ 
  glClearColor(0.0,0.0,0.0,0.0);
 glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
  
 //画出正方体显示列表
 drawcube=glGenLists(1);
 glNewList(drawcube,GL_COMPILE);
 glutSolidCube(1);
 glEndList();
//画出球体显示列表
 drawsphere=glGenLists(1);
 glNewList(drawsphere,GL_COMPILE);
 glutSolidSphere(1,20,20);
 glEndList();
//画出茶壶显示列表
 drawteapot=glGenLists(1);
 glNewList(drawteapot,GL_COMPILE);
 glutSolidTeapot(1);
 glEndList();


 //设置普通灯光照0位置及参数；
 GLfloat position0[]={30,5,30,1};
 GLfloat light0s[]={0.10,0.10,0.10,0.0};
 GLfloat light0d[]={0.6,0.7,0.7};
 GLfloat light0a[]={0.9,0.9,0.9};

 glLightfv(GL_LIGHT0,GL_POSITION,position0);
 glLightfv(GL_LIGHT0,GL_SPECULAR,light0s);
    glLightfv(GL_LIGHT0,GL_DIFFUSE,light0d);
 glLightfv(GL_LIGHT0,GL_AMBIENT,light0a);

 //设置探照灯光照1位置及参数
    GLfloat position1[]={-60,40,0,1};
 GLfloat light1s[]={1.0,1.0,1.0,1.0};
 GLfloat light1d[]={0.06,0.1,0.1};
 GLfloat light1a[]={0.91,0.99,0.96};
 GLfloat  direction[]={0,-60,0,1};
 glLightfv(GL_LIGHT1,GL_SPOT_DIRECTION,direction);
 glLightf(GL_LIGHT0,GL_SPOT_CUTOFF,30.0);
 glLightfv(GL_LIGHT1,GL_POSITION,position1);
 glLightfv(GL_LIGHT1,GL_SPECULAR,light1s);
    glLightfv(GL_LIGHT1,GL_DIFFUSE,light1d);
 glLightfv(GL_LIGHT1,GL_AMBIENT,light1a);
   

 glEnable(GL_LIGHTING);
 glEnable(GL_DEPTH_TEST);
 //glEnable(GL_LIGHT0);
 //glEnable(GL_LIGHT1);
 
 
}



void SpecialKeys(int key, int x, int y)
 {
 if(key == GLUT_KEY_UP)
 {   sy-= 5.50f;
      glutPostRedisplay();
 }
 if(key == GLUT_KEY_DOWN)
 {   sy += 5.50f;
  glutPostRedisplay();
 }

 if(key == GLUT_KEY_LEFT)
 {  sx -= 0.50f;
  glutPostRedisplay();
 }

 if(key == GLUT_KEY_RIGHT)
 {sx += 0.50f;

    // sx= (GLfloat)((const int)sx % 360);
     // sy = (GLfloat)((const int)sy % 360);
 glutPostRedisplay();}
 }



 void draw()
 {
  if(lflag)
  glEnable(GL_LIGHT0);
     if(rflag)
    glEnable(GL_LIGHT1);

 


 glPushMatrix();
   glTranslatef(sx,sy,sz);

 //绘制地面；
glPushMatrix();
   glEnable(GL_COLOR_MATERIAL);
   glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(0.05,0.2,0.15,0.0);
  glTranslatef(0,-20,0);
  glScalef(150,1,150);
  glCallList(drawcube);
   glColor4f(0.0,1.0,0.0,0.0);
  glutWireCube(1);
 
  glDisable(GL_COLOR_MATERIAL);
 glPopMatrix();

//装饰地面
glPushMatrix();
  glEnable(GL_COLOR_MATERIAL);
   glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(0.9,0.6,0.99,0.0);

  glBegin(GL_LINES);
   
  float y=-19.5,z1=50;
  for(float x1=-50;x1<50;++x1)
  {
   glVertex3f(x1,y,z1);
   glVertex3f(x1,y,-z1);

  }
   float x2=50;
  for(float z2=-50;z2<50;++z2)
  {
   glVertex3f(x2,y,z2);
   glVertex3f(-x2,y,z2);

  }

  glEnd();
 glPopMatrix();

  //绘制四个桌腿：
glPushMatrix();
   glEnable(GL_COLOR_MATERIAL);
   glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(1.0,0.05,0.0,0.0);
   glTranslatef(20,-10,-20);
   glScalef(1,20,1);
    glCallList(drawcube);
    glDisable(GL_COLOR_MATERIAL);
glPopMatrix();
 
glPushMatrix();
   glEnable(GL_COLOR_MATERIAL);
   glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(1.0,0.05,0.0,0.0);
   glTranslatef(-20,-10,-20);
   glScalef(1,20,1);
    glCallList(drawcube);
 
  glDisable(GL_COLOR_MATERIAL);
glPopMatrix();

glPushMatrix();
   glEnable(GL_COLOR_MATERIAL);
   glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(1.0,0.05,0.0,0.0);
   glTranslatef(-20,-10,20);
   glScalef(1,20,1);
    glCallList(drawcube);
    glDisable(GL_COLOR_MATERIAL);
glPopMatrix();

glPushMatrix();
   glEnable(GL_COLOR_MATERIAL);
   glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(1.0,0.05,0.0,0.0);
   glTranslatef(20,-10,20);
   glScalef(1,20,1);
    glCallList(drawcube);
   glDisable(GL_COLOR_MATERIAL);
glPopMatrix();
 
  //画出桌面：
 glPushMatrix();
   glEnable(GL_COLOR_MATERIAL);
   glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(0.1,1.0,0.1,0.0);
  glScalef(50,1,50);
  glCallList(drawcube);
    glColor4f(0.39,0.30,0.1,0.0);
  glutWireCube(1);
 // glFlush();
  glDisable(GL_COLOR_MATERIAL);
  glPopMatrix();

 //绘制两边台阶；
 glPushMatrix();//左边第一级台阶
   glEnable(GL_COLOR_MATERIAL);
   glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(0.51,0.40,0.1,0.0);
   glTranslatef(-30,-12,0);
  glScalef(10,4,50);
  glCallList(drawcube);
    glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(0.1,0.50,0.51,0.0);
   glutWireCube(1);
    glDisable(GL_COLOR_MATERIAL);
 glPopMatrix();

glPushMatrix();// 右边第一级台阶
   glEnable(GL_COLOR_MATERIAL);
   glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(0.51,0.40,0.1,0.0);
   glTranslatef(40,-12,0);
  glScalef(10,4,50);
  glCallList(drawcube);
    glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(0.1,0.50,0.51,0.0);
   glutWireCube(1);
       glDisable(GL_COLOR_MATERIAL);
 glPopMatrix();


 glPushMatrix();//左边第二级台阶
   glEnable(GL_COLOR_MATERIAL);
   glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(0.51,0.40,0.1,0.0);
   glTranslatef(-32.5,-8,0);
  glScalef(5,4,50);
  glCallList(drawcube);
    glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(0.1,0.50,0.51,0.0);
   glutWireCube(1);
       glDisable(GL_COLOR_MATERIAL);
 glPopMatrix();

 glPushMatrix();//右边第二级台阶
   glEnable(GL_COLOR_MATERIAL);
   glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(0.51,0.40,0.1,0.0);
   glTranslatef(42.5,-8,0);
  glScalef(5,4,50);
  glCallList(drawcube);
    glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(0.1,0.50,0.51,0.0);
   glutWireCube(1);
 
  glDisable(GL_COLOR_MATERIAL);
 glPopMatrix();

//桌面上摆放物品，茶壶一只，鸡蛋一个
glPushMatrix();//茶壶
   glEnable(GL_COLOR_MATERIAL);
   glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(0.51,0.0,0.1,0.0);
   glTranslatef(0,8,0);
 glScalef(5,10,5);
  glCallList(drawteapot);
 
  glDisable(GL_COLOR_MATERIAL);
 glPopMatrix();

 
  //glEnable(GL_BLEND);
  //glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);

 
glPushMatrix();//鸡蛋
   glEnable(GL_COLOR_MATERIAL);
   glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(1.00,0.91,0.05,0.8);
   glTranslatef(-13,6,10);
 glScalef(2,5,2);
  glCallList(drawsphere);
       glDisable(GL_COLOR_MATERIAL);
 glPopMatrix();
 
 

glPushMatrix();//地面上球体
   glEnable(GL_COLOR_MATERIAL);
   glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(0.30,0.11,0.15,0.8);
 glTranslatef(15,-13,25);
 glScalef(5,5,5);
  glCallList(drawsphere);
        glDisable(GL_COLOR_MATERIAL);
 glPopMatrix();

 
glPushMatrix();//圆环一个
   glEnable(GL_COLOR_MATERIAL);
   glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(0.90,0.01,0.95,0.8);
   glRotatef(1,0,0,45);
 glTranslatef(-35,-13,35);
   glutSolidTorus(1,6,20,20);
        glDisable(GL_COLOR_MATERIAL);
 glPopMatrix();

 
 

 GLUquadricObj *pObj;
 glPushMatrix();//第一个杯子  左边
    pObj = gluNewQuadric();
    gluQuadricNormals(pObj,GLU_SMOOTH);
        glTranslatef(-8,6,8);
   glRotatef(90,1,0,0);
   gluCylinder(pObj, 1.50f, 1.0f,5.0f, 26, 13);
 glPopMatrix();

 glPushMatrix();  //第2个杯子 右边
   glTranslatef(8,6,8);
   glRotatef(90,1,0,0);
   gluCylinder(pObj, 1.50f, 1.0f,5.0f, 26, 13);
 glPopMatrix();


 glPushMatrix();  //桌面上垫圈
      glEnable(GL_COLOR_MATERIAL);
   glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(0.21,0.21,0.21,0.0);
 
       pObj= gluNewQuadric();
    //gluQuadricDrawStyle(pObj3,GLU_LINE);
    glTranslatef(-8,1,8);
   glRotatef(90,1,0,0);
   gluDisk(pObj, 0.50f,  3.0f, 10, 10);
 glPopMatrix();

glPushMatrix();  //桌面上垫圈
   
       pObj = gluNewQuadric();
    glTranslatef(8,1,8);
   glRotatef(90,1,0,0);
   gluDisk(pObj, 0.50f,  3.0f, 30, 30);
 glPopMatrix();


  glPushMatrix(); //地面上放置 圆锥体；
  glEnable(GL_COLOR_MATERIAL);
   glColorMaterial(GL_FRONT,GL_AMBIENT);
   glColor4f(0.01,0.01,0.81,0.0);
 
       pObj = gluNewQuadric();
    gluQuadricDrawStyle(pObj,GLU_LINE);
        glTranslatef(-15.0,5.0,15);
   glRotatef(90,1,0,0);
   gluCylinder(pObj, 0.0f, 2.0f,5.0f, 26, 13);
 glPopMatrix();


 glPopMatrix();
 
  glutSwapBuffers();
 

 }


void  main(int argc, char *argv[])
{
     glutInit(&argc, argv);
 glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB|GLUT_DEPTH);
 glutInitWindowSize(800,600);
 glutInitWindowPosition(100,100);
 glutCreateWindow("【自动化所  赵静 201028014629087】");
  init();
 glutReshapeFunc(reshape);
 glutSpecialFunc(SpecialKeys);
// glutMouseFunc(mouse);
 glutDisplayFunc(draw);
    glutMainLoop();
 
}

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