opengl实验四【太阳系】讲解

opengl实验四【太阳系】解说opengl实验四【太阳系】解说10/10opengl实验四【太阳系】解说姓名：

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学号#include<stdlib.h>#include<GL/glut.h>#include<GL/glaux.h>#include<stdio.h>#include<math.h>#pragmacomment(lib,"glaux.lib")

//将

glaux.lib

连结到工程enum

//列举鼠标变量{BUTTON_LEFT,//

鼠标左键};intmButton=-1;intmOldY,mOldX;floatz=0,c=0;floateye[3]={0.0f,0.0f,2.0f};

//察看视角floatrot[3]={45.0f,45.0f,0.0f};//

旋转变量constintGL_WIN_WIDTH=800;

//窗口大小constintGL_WIN_HEIGHT=600;constintGL_WIN_INITIAL_X=0;constintGL_WIN_INITIAL_Y=0;constintn=1000,m=20;constfloatR=1.2f,r=0.15f;//半径constfloatPi=3.1415926536f;GLuintg_TexturesArray[7];//纹理指针intiMode=1;voidProcessMenu(intvalue)//弹出办理函数{iMode=value;glutPostRedisplay();//强迫刷新显示}voidCreatePopMenu()//生成弹出式菜单函数{intnMainMenu;//主菜单变量nMainMenu=glutCreateMenu(ProcessMenu);//生成一个主菜单并指定菜单办理函数glutAddMenuEntry("填补",1);//增添一个主菜单glutAddMenuEntry("轮廓",2);//增添一个主菜单glutAttachMenu(GLUT_RIGHT_BUTTON);//指定激活菜单的鼠标右键}boolLoadBMP(char*filename,GLuint&texture)

//调贴图大小为

2的幂{AUX_RGBImageRec*pImage=NULL;pImage=auxDIBImageLoad(filename);//装入位图if(pImage==NULL)returnfalse;//位图没装入返回错误glGenTextures(1,&texture);//生成贴图(纹理)glBindTexture(GL_TEXTURE_2D,texture);//捆绑贴图(纹理)gluBuild2DMipmaps(GL_TEXTURE_2D,4,//成立图形pImage->sizeX,//图形宽pImage->sizeXpImage->sizeY,//图形高pImage->sizeY,GL_RGB,GL_UNSIGNED_BYTE,pImage->data//图形数据);free(pImage->data);

//开释位图数据占有的内存资源free(pImage);returntrue;

//返回成功}voidInit(){glEnable(GL_DEPTH_TEST);//开启深度缓冲glClearColor(0.0,0.0,0.0,1.0);glEnable(GL_TEXTURE_2D);//启用二维文理//载入图片LoadBMP("data/11.bmp",g_TexturesArray[0]);LoadBMP("data/12.bmp",g_TexturesArray[1]);LoadBMP("data/13.bmp",g_TexturesArray[2]);LoadBMP("data/14.bmp",g_TexturesArray[3]);LoadBMP("data/15.bmp",g_TexturesArray[4]);LoadBMP("data/16.bmp",g_TexturesArray[5]);LoadBMP("data/17.bmp",g_TexturesArray[6]);}voidglutResize(intwidth,intheight)//重置OpenGL窗口大小{glViewport(0,0,width,height);//重置目前视口glMatrixMode(GL_PROJECTION);//选择投影矩阵glLoadIdentity();//重置投影矩阵gluPerspective(45.0,(float)width/(float)height,1.0,300.0);//设置视口大小}voidglutDisplay(void)//显示函数{glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);//表示物体的前向和后向面用填补面显示glPushMatrix();//入栈glTranslatef(-eye[0],-eye[1],-10);//视口glBindTexture(GL_TEXTURE_2D,g_TexturesArray[0]);//背景glBegin(GL_QUADS);glTexCoord2f(1.0f,0.0f);glVertex3f(8,-8,0);glTexCoord2f(1.0f,1.0f);glVertex3f(8,8,0);glTexCoord2f(0.0f,1.0f);glVertex3f(-8,8,0);glTexCoord2f(0.0f,0.0f);glVertex3f(-8,-8,0);glEnd();glPopMatrix();//出栈glPushMatrix();//入栈glTranslatef(-eye[0],-eye[1],-eye[2]);glRotatef(rot[0],1.0f,0.0f,0.0f);glRotatef(rot[1],0.0f,1.0f,0.0f);glRotatef(rot[2],0.0f,0.0f,1.0f);//太阳if(iMode==1){GLUquadricObj*quadric1;//成立一个曲面对象指针quadric1=gluNewQuadric();//成立一个曲面对象指针gluQuadricTexture(quadric1,GLU_TRUE);//成立纹理坐标gluQuadricDrawStyle(quadric1,GLU_FILL);//用面填补绘制场景glBindTexture(GL_TEXTURE_2D,g_TexturesArray[1]);//绑定纹理gluSphere(quadric1,0.3f,64,64);//画一个填补太阳}elseif(iMode==2){glDisable(GL_TEXTURE_2D);//撤消纹理glColor3f(1.0,1.0,1.0);glutWireSphere(0.3f,32,32);//画一个线条太阳glEnable(GL_TEXTURE_2D);//启用纹理}//土星公转轨道glDisable(GL_TEXTURE_2D);//撤消纹理glColor3f(1.0,1.0,1.0);glBegin(GL_LINE_LOOP);for(intj=0;j<n;j++)glVertex3f(R*cos(2*Pi/n*j),0,R*sin(2*Pi/n*j));glEnd();glEnable(GL_TEXTURE_2D);//启用纹理//地球公转轨道glDisable(GL_TEXTURE_2D);//撤消纹理glColor3f(1.0,1.0,1.0);glBegin(GL_LINE_LOOP);for(j=0;j<n;j++)glVertex3f(0.7*cos(2*Pi/n*j),0,0.7*sin(2*Pi/n*j));glEnd();glEnable(GL_TEXTURE_2D);//启用纹理//土星glPushMatrix();//入栈glRotatef(z,0.0f,1.0f,0.0f);glTranslatef(1.2,0,0);glPushMatrix();//入栈glRotatef(c,0.0f,1.0f,0.0f);glRotatef(90,1.0f,0.0f,0.0f);if(iMode==1){GLUquadricObj*quadric2;quadric2=gluNewQuadric();

////成立一个曲面对象指针//成立一个曲面对象指针gluQuadricTexture(quadric2,GLU_TRUE);//成立纹理坐标gluQuadricDrawStyle(quadric2,GLU_FILL);//用面填补绘制场景glBindTexture(GL_TEXTURE_2D,g_TexturesArray[2]);//绑定纹理gluSphere(quadric2,0.12f,64,64);//画一个填补土星}elseif(iMode==2){glDisable(GL_TEXTURE_2D);//撤消纹理glColor3f(1.0,1.0,1.0);glutWireSphere(0.12f,25,25);//画一个线条土星glEnable(GL_TEXTURE_2D);//启用纹理}glPopMatrix();//出栈//土星一号卫星glPushMatrix();//入栈glRotatef(c,0.0f,0.0f,1.0f);glTranslatef(0.25,0,0);if(iMode==1){GLUquadricObj*quadric3;quadric3=gluNewQuadric();

////成立一个曲面对象指针//成立一个曲面对象指针gluQuadricTexture(quadric3,GLU_TRUE);//成立纹理坐标gluQuadricDrawStyle(quadric3,GLU_FILL);//用面填补绘制场景glBindTexture(GL_TEXTURE_2D,g_TexturesArray[3]);//绑定纹理gluSphere(quadric3,0.03f,64,64);//画一个填补卫星}elseif(iMode==2){glDisable(GL_TEXTURE_2D);//撤消纹理glColor3f(1.0,1.0,1.0);glutWireSphere(0.03f,25,25);//画一个线条卫星glEnable(GL_TEXTURE_2D);//启用纹理}glPopMatrix();//出栈//

土星一号卫星轨道

glDisable(GL_TEXTURE_2D);//

撤消纹理glColor3f(1.0,1.0,1.0);glBegin(GL_LINE_LOOP);for(j=0;j<n;j++)glVertex3f(0.25*cos(2*Pi/n*j),0.25*sin(2*Pi/n*j),0);glEnd();glEnable(GL_TEXTURE_2D);//

启用纹理//土星二号卫星glPushMatrix();//入栈glRotatef(c,1.0f,0.0f,0.0f);glTranslatef(0,0,0.25);if(iMode==1){

GLUquadricObj*quadric4;////成立一个曲面对象指针quadric4=gluNewQuadric();//成立一个曲面对象指针gluQuadricTexture(quadric4,GLU_TRUE);//成立纹理坐标gluQuadricDrawStyle(quadric4,GLU_FILL);//用面填补绘制场景glBindTexture(GL_TEXTURE_2D,g_TexturesArray[4]);//绑定纹理gluSphere(quadric4,0.03f,64,64);//画一个填补卫星}elseif(iMode==2){glDisable(GL_TEXTURE_2D);//撤消纹理glColor3f(1.0,1.0,1.0);glutWireSphere(0.03f,25,25);//画一个线条卫星glEnable(GL_TEXTURE_2D);//启用纹理}glPopMatrix();//出栈//土星二号卫星轨道glDisable(GL_TEXTURE_2D);//撤消纹理glColor3f(1.0,1.0,1.0);glBegin(GL_LINE_LOOP);for(j=0;j<n;j++)glVertex3f(0,0.25*cos(2*Pi/n*j),0.25*sin(2*Pi/n*j));glEnd();glEnable(GL_TEXTURE_2D);//启用纹理//土星的行星环glDisable(GL_TEXTURE_2D);//撤消纹理glColor3f(1.0,1.0,1.0);for(inti=0;i<m;i++){glBegin(GL_LINE_LOOP);for(intj=0;j<n;j++)glVertex3f((r+i*0.004)*cos(2*Pi/n*j),0,(r+i*0.004)*sin(2*Pi/n*j));glEnd();}glEnable(GL_TEXTURE_2D);//启用纹理glPopMatrix();//出栈//地球glPushMatrix();//入栈glRotatef(z*2,0.0f,1.0f,0.0f);glTranslatef(0,0,0.7);glPushMatrix();//入栈glRotatef(c,0.0f,1.0f,0.0f);glRotatef(-90,1.0f,0.0f,0.0f);if(iMode==1){GLUquadricObj*quadric5;quadric5=gluNewQuadric();

////成立一个曲面对象指针//成立一个曲面对象指针gluQuadricTexture(quadric5,GLU_TRUE);//成立纹理坐标gluQuadricDrawStyle(quadric5,GLU_FILL);//用面填补绘制场景glBindTexture(GL_TEXTURE_2D,g_TexturesArray[5]);//绑定纹理gluSphere(quadric5,0.1f,64,64);//画一个填补地球}elseif(iMode==2){glDisable(GL_TEXTURE_2D);//撤消纹理glColor3f(1.0,1.0,1.0);glutWireSphere(0.1f,25,25);//画一个线条地球glEnable(GL_TEXTURE_2D);//启用纹理}glPopMatrix();//出栈//月亮glPushMatrix();//入栈glRotatef(c,1.0f,0.0f,0.0f);glTranslatef(0,0,0.15);if(iMode==1){GLUquadricObj*quadric6;////成立一个曲面对象指针quadric6=gluNewQuadric();//成立一个曲面对象指针gluQuadricTexture(quadric6,GLU_TRUE);//成立纹理坐标gluQuadricDrawStyle(quadric6,GLU_FILL);//用面填补绘制场景glBindTexture(GL_TEXTURE_2D,g_TexturesArray[6]);//绑定纹理gluSphere(quadric6,0.025f,64,64);//画一个填补月亮}elseif(iMode==2){glDisable(GL_TEXTURE_2D);//撤消纹理glColor3f(1.0,1.0,1.0);glutWireSphere(0.025f,25,25);//画一个线条月亮glEnable(GL_TEXTURE_2D);//启用纹理}glPopMatrix();//出栈//月亮轨道glDisable(GL_TEXTURE_2D);//撤消纹理glColor3f(1.0,1.0,1.0);glBegin(GL_LINE_LOOP);for(j=0;j<n;j++)glVertex3f(0,0.15*cos(2*Pi/n*j),0.15*sin(2*Pi/n*j));glEnd();glEnable(GL_TEXTURE_2D);//启用纹理glPopMatrix();//出栈z+=0.05;c+=0.3;glPopMatrix();//出栈glFlush();glutSwapBuffers();}voidclamp(float*v){inti;for(i=0;i<3;i++)//图像旋转一周后回到原地if(v[i]>360||v[i]<-360)v[i]=0;}voidglutMotion(intx,inty)//图像挪动函数{if(mButton==BUTTON_LEFT)//按下左键时能够随意旋转图像{rot[0]-=(mOldY-y)