report3 郭小明 三維圖形程序設(shè)計(jì) 電子科技大學(xué)

1、實(shí)驗(yàn)報(bào)告課程名稱：三維圖形程序設(shè)計(jì)學(xué)院：計(jì)算機(jī)科學(xué)與工程專業(yè)：計(jì)算機(jī)科學(xué)與技術(shù)指導(dǎo)教師：曹躍學(xué)生姓名：郭小明學(xué)號(hào)：2011060100010實(shí)驗(yàn)成績(jī)：日期：2013年5月10日電子科技大學(xué)計(jì)算機(jī)學(xué)院實(shí)驗(yàn)中心電 子 科 技 大 學(xué)實(shí) 驗(yàn) 報(bào) 告一、實(shí)驗(yàn)一：OpenGL光照與材質(zhì)編程實(shí)驗(yàn)二、實(shí)驗(yàn)室名稱：A2三、實(shí)驗(yàn)?zāi)康模?、理解OpenGL光照模型的相關(guān)原理，掌握與光照參數(shù)和對(duì)象材質(zhì)設(shè)置相關(guān)的OpenGL API函數(shù)的用法，熟悉光照與材質(zhì)參數(shù)設(shè)置的基本技巧；2、理解OpenGL混合（融合）的基本原理，掌握與混合相關(guān)的OpenGL API函數(shù)的用法。四、實(shí)驗(yàn)原理：OpenGL編程原理五、實(shí)驗(yàn)內(nèi)容：（

2、一）編程任務(wù)1繪制一個(gè)具有光照的房間建立光照?qǐng)鼍安閳?chǎng)景中的幾何對(duì)象設(shè)置材質(zhì)屬性void CreateWorld()四面墻壁 void CreateWall()屋頂 void CreateCeiling()地板 void CreateGround()一個(gè)圓錐體和一個(gè)球體 void CreateFurnishings()在房間中創(chuàng)建并放置兩個(gè)光源 void CreateLightAndProxy(void)一個(gè)是點(diǎn)光源一個(gè)是聚光燈；為光源創(chuàng)建代理幾何體（Proxy），可以通過鼠標(biāo)拖動(dòng)光源代理來交互式的移動(dòng)光源；繪制場(chǎng)景void DrawWorld(void)繪制四面墻壁 void DrawWal

3、l()繪制屋頂 void DrawCeiling()繪制地板 void DrawGround()繪制屋內(nèi)物品 void DrawFurnishings()繪制光源代理 voidDrawLightProxy()其它要求：1、可交互式移動(dòng)光源；2、可用右鍵菜單交互式的開啟或關(guān)閉場(chǎng)景光照；3、可利用鍵盤快捷鍵調(diào)整球的材質(zhì)屬性，如輝度系數(shù)（GL_SHININESS）等。分析材質(zhì)是如何影響幾何對(duì)象的光照效果的。（二）編程任務(wù)2繪制一個(gè)具有地板反光效果的房間利用OpenGL混合功能可以模擬地板反光效果，這需要將地板和場(chǎng)景中其它物體分開處理，其基本思路如下：1、首先以上下顛倒的方式來繪制出地板鏡像場(chǎng)景(即沿

4、著地板面將光源和場(chǎng)景進(jìn)行鏡像)；2、接者利用混合在上述鏡像場(chǎng)景之上繪制出半透明的地板；3、最后以正常的光源和場(chǎng)景位置來繪制場(chǎng)景。參考代碼如下：void RenderScene(void) glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glPushMatrix(); / 光源鏡像移動(dòng)到地板下，以照射這個(gè)“鏡像”場(chǎng)景 glLightfv(GL_LIGHT0, GL_POSITION, fLightPosMirror); glPushMatrix(); /場(chǎng)景被鏡像，同時(shí)交換正反面 glFrontFace(GL_CW); glScalef(1

5、.0f, -1.0f, 1.0f); DrawWorldExGround(); glFrontFace(GL_CCW); glPopMatrix(); / 在鏡像場(chǎng)景上繪制一個(gè)半透明的地板 glDisable(GL_LIGHTING); glEnable(GL_BLEND); glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); DrawGround(); glDisable(GL_BLEND); glEnable(GL_LIGHTING); / 恢復(fù)正常的光照，并正確繪制場(chǎng)景 glLightfv(GL_LIGHT0, GL_POSITION,

6、fLightPos); DrawWorldExGround(); glPopMatrix(); glutSwapBuffers(); 六、實(shí)驗(yàn)器材（設(shè)備、元器件）：Microsoft Windows XP Professional 版本2002 Service Pack 3 VC+ 6.0七、實(shí)驗(yàn)數(shù)據(jù)及結(jié)果分析：（一）編程任務(wù)1繪制一個(gè)具有光照的房間#include #include #include #define SIZE 512GLint HITS;int flag_xyz = 1;int flag_light = 1;int mousex,mousey;float movex,move

7、y,movez;float PI = 3.1415926;void display();void drawSphere(GLfloat,GLfloat,GLfloat,int);float wide=0.8,height=0.8,Dept=0.8;void init()glEnable(GL_DEPTH_TEST);glEnable(GL_NORMALIZE);glEnable(GL_COLOR_MATERIAL);int wide_screen=300,height_screen=300;float eyex = 0.0,eyey = 0.0,eyez = 1.8;void reshape(

8、int w, int h)wide_screen = w;height_screen = h;glViewport(0, 0, w, h);glMatrixMode(GL_PROJECTION);glLoadIdentity();gluPerspective(60,1,1,3);/3.設(shè)置視景體,glFrustumgluLookAt(eyex,eyey,eyez,0,0,0,0,1,0);glMatrixMode(GL_MODELVIEW);glLoadIdentity();float light_postion4=wide-0.2,height-0.2,-Dept,1;float light

9、_ambient 4=1.0,1.0,1.0,0.5;float light_diffuse 4=1.0,1.0,1.0,0.5;float light_specular 4=1.0,1.0,1.0,0.5;/float light_ambient 4=0.6,0.6,0.6,0.5;/float light_diffuse 4=0.4,0.4,0.4,0.5;/float light_specular 4=0.8,0.8,0.8,0.5;float proxy3 = wide-0.2,height-0.2,-Dept;void createLightAndProxy(GLenum mode)

10、glTranslatef(2*movex/wide_screen,2*movey/height_screen,2*movez/wide_screen);glLightf(GL_LIGHT0,GL_CONSTANT_ATTENUATION,1.5);glLightf(GL_LIGHT0,GL_LINEAR_ATTENUATION,0);/glLightf(GL_LIGHT0,GL_QUADRATIC_ATTENUATION,0.0125);glLightfv(GL_LIGHT0,GL_POSITION,light_postion);glLightfv(GL_LIGHT0,GL_AMBIENT,l

11、ight_ambient);glLightfv(GL_LIGHT0,GL_DIFFUSE,light_diffuse);glLightfv(GL_LIGHT0,GL_SPECULAR,light_specular);if(mode = GL_SELECT)glLoadName(1);drawSphere(proxy0,proxy1-wide/12,proxy2,1);glTranslatef(-2*movex/wide_screen,-2*movey/height_screen,-2*movez/wide_screen);if(mode = GL_SELECT)glLoadName(2);vo

12、id create_wall()/glEnable(GL_FRONT_AND_BACK);/設(shè)置墻壁材質(zhì)GLfloat Material_ambient4=0.6,0.2,0.5,0.5;GLfloat Material_diffuse4=0.8,0.2,0.5,0.5;GLfloat Material_specular4=0.0,0.0,0.5,1.0;GLfloat Material_shiness = 64.0;glMaterialfv(GL_FRONT_AND_BACK,GL_AMBIENT,Material_ambient);glMaterialfv(GL_FRONT_AND_BAC

13、K,GL_DIFFUSE,Material_diffuse);glMaterialfv(GL_FRONT_AND_BACK,GL_SPECULAR,Material_specular);glMaterialf(GL_FRONT_AND_BACK,GL_SHININESS,Material_shiness);glBegin(GL_QUADS);/近處的墻glColor3f(1.0,0,0.0);glNormal3f(0,0,-1);glVertex3f(wide,-height,Dept);glVertex3f(wide,height,Dept);glVertex3f(-wide,height,

14、Dept);glVertex3f(-wide,-height,Dept);/右邊的墻glColor3f(1.0,0.5,0.8);glNormal3f(-1,0,0);glVertex3f(wide,-height,Dept);glVertex3f(wide,height,Dept);glVertex3f(wide,height,-Dept);glVertex3f(wide,-height,-Dept);/左邊的墻glColor3f(0.0,1.0,0.0);glNormal3f(1,0,0);glVertex3f(-wide,-height,-Dept);glVertex3f(-wide,h

15、eight,-Dept);glVertex3f(-wide,height,Dept);glVertex3f(-wide,-height,Dept);/遠(yuǎn)處的墻glColor3f(1.0,0.5,0.4);glNormal3f(0,0,1);glVertex3f(wide,-height,-Dept);glVertex3f(wide,height,-Dept);glVertex3f(-wide,height,-Dept);glVertex3f(-wide,-height,-Dept);glEnd();void create_floor()glBegin(GL_QUADS);glColor4f(0

16、.5,0.4,0.4,0.6);glNormal3f(0,1,0);glVertex3f(-wide,-height,-Dept);glVertex3f(-wide,-height,Dept);glVertex3f(wide,-height,Dept);glVertex3f(wide,-height,-Dept);glEnd();void create_quad(int i,int j)if(i+j)%2 = 1 )glColor3f(0.0,0.5,0.5);elseglColor3f(0.0,0.0,0.0);glBegin(GL_QUADS);glVertex3f(-wide/16,0,

17、Dept/16);glVertex3f(-wide/16,0,-Dept/16);glVertex3f(wide/16,0,-Dept/16);glVertex3f(wide/16,0,Dept/16);glEnd();void create_ceil()int j =1;int i=1;glTranslatef(0,height,0);glNormal3f(0,-1,0);for(;j=16;j+)glTranslatef(-wide+j*wide/8-wide/16,0,0);/printf(%d ,j);for(i=1;i=16;i+)glTranslatef(0,0,-Dept+i*D

18、ept/8-Dept/16);create_quad(i,j);glTranslatef(0,0,Dept-i*Dept/8+Dept/16);glTranslatef(wide-j*wide/8+wide/16,0,0);glTranslatef(0,-height,0);void drawSphere(GLfloat xx=0,GLfloat yy=0,GLfloat zz=0,int flag=0)GLfloat radius;if(flag = 0)radius=2*wide/8;elseradius=wide/16;GLfloat M=20;GLfloat N=20;float st

19、ep_z = PI/M;float step_xy = 2*PI/N;float x4,y4,z4;float angle_z = 0.0;float angle_xy = 0.0;int i=0, j=0;if(flag = 0)glColor3f(0.5,0.25,0);elseglColor3f(1.0,1.0,1.0);glBegin(GL_QUADS);for(i=0; iM; i+)angle_z = i * step_z;for(j=0; jN; j+)angle_xy = j * step_xy; x0 = radius * sin(angle_z) * cos(angle_x

20、y);y0 = radius * sin(angle_z) * sin(angle_xy);z0 = radius * cos(angle_z);x1 = radius * sin(angle_z + step_z) * cos(angle_xy);y1 = radius * sin(angle_z + step_z) * sin(angle_xy);z1 = radius * cos(angle_z + step_z);x2 = radius*sin(angle_z + step_z)*cos(angle_xy + step_xy);y2 = radius*sin(angle_z + ste

21、p_z)*sin(angle_xy + step_xy);z2 = radius*cos(angle_z + step_z);x3 = radius * sin(angle_z) * cos(angle_xy + step_xy);y3 = radius * sin(angle_z) * sin(angle_xy + step_xy);z3 = radius * cos(angle_z);for(int k=0; k4; k+)glNormal3f(xk,yk,zk);glVertex3f(xx+xk, yy+yk,zz+zk);glEnd();void yuanzhui()glTransla

22、tef(-wide/2,-height,-Dept/2);glBegin(GL_TRIANGLE_FAN);glColor3f(0,0.25,0.5);glNormal3f(1,1,1);glVertex3f(0,height/1.2,0);for(int i=0;i=32;i+)glVertex3f(0.2*cos(i*PI/16),0,0.2*sin(i*PI/16);glEnd();glTranslatef(wide/2,height,Dept/2);void createFurnishings()/glSolidSphere();glTranslatef(0,-height+2*wid

23、e/8,-Dept+2*Dept/8);drawSphere();glTranslatef(0,height-2*wide/8,Dept-2*Dept/8);yuanzhui();void draw(GLenum mode)glMatrixMode(GL_MODELVIEW);if(flag_light = 1)glEnable(GL_LIGHTING);glEnable(GL_LIGHT0);elseglDisable(GL_LIGHTING);glDisable(GL_LIGHT0);createLightAndProxy(mode);create_wall();create_floor(

24、);create_ceil();createFurnishings();void RenderScene(GLenum mode)glTranslatef(0.0,2*height,0.0);glLightfv(GL_LIGHT0, GL_POSITION, light_postion);glFrontFace(GL_CW);glScalef(1.0f, -1.0f, 1.0f);create_wall();create_ceil();createFurnishings();/DrawWorldExGround();glScalef(1.0f, -1.0f, 1.0f);glFrontFace

25、(GL_CCW);glTranslatef(0.0,-2*height,0.0);glDisable(GL_LIGHTING);glEnable(GL_BLEND);glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);/DrawGround();create_floor();glDisable(GL_BLEND);glEnable(GL_LIGHTING);glLightfv(GL_LIGHT0, GL_POSITION, light_postion);/DrawWorldExGround();draw(GL_RENDER);void displ

26、ay()glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);glMatrixMode(GL_PROJECTION);glLoadIdentity();gluPerspective(60,1,1,3);gluLookAt(eyex,eyey,eyez,0,0,0,0,1,0);draw(GL_RENDER);glFlush();glutSwapBuffers();int flag_move = 0 ;void process(GLint hits,GLuint buffer)unsigned int i, j;GLint names, *ptr;/p

27、rintf (hits = %dn, hits);ptr = (GLint *) buffer;for (i = 0; i hits; i+) /* for each hit */names = *ptr;ptr+=3;for (j = 0; j names; j+) /* for each name */if(*ptr=1)flag_move = 1;ptr+;GLuint select_BufferSIZE;void mouse(int key,int state,int x,int y)GLint hits;GLint viewport4;if(key = GLUT_LEFT_BUTTO

28、N & state = GLUT_DOWN)mousex = x;mousey = y;glGetIntegerv(GL_VIEWPORT,viewport);glSelectBuffer(SIZE,select_Buffer);glRenderMode(GL_SELECT);glInitNames();glPushName(0);glMatrixMode(GL_PROJECTION);glPushMatrix();glLoadIdentity();gluPickMatrix(GLdouble)x,(GLdouble)(viewport3-y),5,5,viewport);gluPerspec

29、tive(60,1,1,3);gluLookAt(eyex,eyey,eyez,0,0,0,0,1,0);draw(GL_SELECT);glMatrixMode(GL_PROJECTION);glPopMatrix();glFlush();hits = glRenderMode(GL_RENDER);process(hits,select_Buffer);HITS = hits;glutPostRedisplay();if(key = GLUT_LEFT_BUTTON & state = GLUT_UP)flag_move = 0;void motion(int x,int y)if(fla

30、g_move = 0)return;elseswitch(flag_xyz)case 1:case 2:movex = x-mousex+movex;movey = -y+mousey+movey;break;case 3:movez = x-mousex+movez;break;/display(GL_RENDER);glutPostRedisplay();mousex = x;mousey = y;/printf(%fn,movey);void keyboard(unsigned char key,int x,int y)/printf(%c ,key);switch(key)case x

31、:eyex -=0.1;break;case y:eyey -=0.1;break;case z:eyez -=0.1;break;case X:eyex +=0.1;break;case Y:eyey +=0.1;break;case Z:eyez +=0.1;break;case h:case H:flag_xyz = 1;break;case s:case S:flag_xyz = 2;break;case l:case L:flag_xyz = 3;break;default:return;break;/printf( %f %f %fn,eyex,eyey,eyez);glutPos

32、tRedisplay();void MenuFunc(int data)switch(data)case 1:flag_light = 0;break;case 2:flag_light = 1;break;default:break;glutPostRedisplay();int Menu;int main(int argc,char * argv)glutInitDisplayMode(GLUT_RGB|GLUT_DOUBLE|GLUT_DEPTH);glutInit(&argc,argv);glutInitWindowSize(wide_screen,height_screen);glu

33、tCreateWindow(“郭小明的房間”);init();Menu = glutCreateMenu(MenuFunc);glutAddMenuEntry(關(guān)閉光源！,1);glutAddMenuEntry(打開光源！,2);glutAttachMenu(GLUT_RIGHT_BUTTON);glutDisplayFunc(display);glutKeyboardFunc(keyboard);glutMouseFunc(mouse);glutMotionFunc(motion);glutKeyboardFunc(keyboard);glutReshapeFunc(reshape);glu

34、tMainLoop();return 0;打開光源時(shí)郭小明的房間的情形通過右鍵菜單關(guān)閉光源之后郭小明房間的情形改變視角方向和位置之后的看到的房間的外圍圖形（二）編程任務(wù)2繪制一個(gè)具有地板反光效果的房間#include #include #include #define SIZE 512GLint HITS;int flag_xyz = 1;int flag_light = 1;int mousex,mousey;float movex,movey,movez;float PI = 3.1415926;void display();void drawSphere(GLfloat,GLfloat,

35、GLfloat,int);float wide=0.8,height=0.8,Dept=0.8;void init()glEnable(GL_DEPTH_TEST);glEnable(GL_NORMALIZE);glEnable(GL_COLOR_MATERIAL);int wide_screen=300,height_screen=300;float eyex = 0,eyey = 0,eyez = 1.7;void reshape(int w, int h)wide_screen = w;height_screen = h;glViewport(0, 0, w, h);glMatrixMo

36、de(GL_PROJECTION);glLoadIdentity();/gluOrtho2D (-2.0*wide, 2.0*wide, -2.0*height, 2.0*height);gluPerspective(60,1,1,30);/3.設(shè)置視景體,glFrustum/glFrustum(-0.8,0.8,-0.8,0.8,1,3);gluLookAt(eyex,eyey,eyez,0,0,0,0,1,0);glMatrixMode(GL_MODELVIEW);glLoadIdentity();float light_postion4=wide-0.2,height-0.2,-Dept

37、,1;float light_ambient 4=1.0,1.0,1.0,0.5;float light_diffuse 4=1.0,1.0,1.0,0.5;float light_specular 4=1.0,1.0,1.0,0.5;float proxy3 = wide-0.2,height-0.2,-Dept;void createLightAndProxy(GLenum mode)glTranslatef(2*movex/wide_screen,2*movey/height_screen,2*movez/wide_screen);/設(shè)置光源相關(guān)glLightf(GL_LIGHT0,GL

38、_CONSTANT_ATTENUATION,1.5);glLightf(GL_LIGHT0,GL_LINEAR_ATTENUATION,0);glLightfv(GL_LIGHT0,GL_POSITION,light_postion);glLightfv(GL_LIGHT0,GL_AMBIENT,light_ambient);glLightfv(GL_LIGHT0,GL_DIFFUSE,light_diffuse);glLightfv(GL_LIGHT0,GL_SPECULAR,light_specular);if(mode = GL_SELECT)glLoadName(1);if(flag_

39、light = 1)drawSphere(proxy0,proxy1-wide/12,proxy2,1);glTranslatef(-2*movex/wide_screen,-2*movey/height_screen,-2*movez/wide_screen);if(mode = GL_SELECT)glLoadName(2);void create_wall()/glEnable(GL_FRONT_AND_BACK);/設(shè)置墻壁材質(zhì)GLfloat Material_ambient4=0.6,0.2,0.5,0.5;GLfloat Material_diffuse4=0.8,0.2,0.5,

40、0.5;GLfloat Material_specular4=0.0,0.0,0.5,1.0;GLfloat Material_shiness = 64.0;glMaterialfv(GL_FRONT_AND_BACK,GL_AMBIENT,Material_ambient);glMaterialfv(GL_FRONT_AND_BACK,GL_DIFFUSE,Material_diffuse);glMaterialfv(GL_FRONT_AND_BACK,GL_SPECULAR,Material_specular);glMaterialf(GL_FRONT_AND_BACK,GL_SHININ

41、ESS,Material_shiness);glBegin(GL_QUADS);/近處的墻glColor3f(0.6,0,0.0);glNormal3f(0,0,-1);glVertex3f(wide,-height,Dept);glVertex3f(wide,height,Dept);glVertex3f(-wide,height,Dept);glVertex3f(-wide,-height,Dept);/右邊的墻glColor3f(0.5,0.5,0.8);glNormal3f(-1,0,0);glVertex3f(wide,-height,Dept);glVertex3f(wide,he

42、ight,Dept);glVertex3f(wide,height,-Dept);glVertex3f(wide,-height,-Dept);/左邊的墻glColor3f(0.5,0.5,0.8);glNormal3f(1,0,0);glVertex3f(-wide,-height,-Dept);glVertex3f(-wide,height,-Dept);glVertex3f(-wide,height,Dept);glVertex3f(-wide,-height,Dept);/遠(yuǎn)處的墻glColor3f(0.5,0.5,0.8);glNormal3f(0,0,1);glVertex3f(w

43、ide,-height,-Dept);glVertex3f(wide,height,-Dept);glVertex3f(-wide,height,-Dept);glVertex3f(-wide,-height,-Dept);glEnd();void create_floor()glBegin(GL_QUADS);glColor4f(0.4,0.3,0.3,0.6);glNormal3f(0,-1,0);glVertex3f(-wide,-height,-Dept);glVertex3f(wide,-height,-Dept);glVertex3f(wide,-height,Dept);glVe

44、rtex3f(-wide,-height,Dept);glEnd();void create_quad(int i,int j)if(i+j)%2 = 1 )glColor3f(0.0,0.5,0.5);elseglColor3f(0.0,0.0,0.0);glBegin(GL_QUADS);glVertex3f(-wide/16,0,Dept/16);glVertex3f(wide/16,0,Dept/16);glVertex3f(wide/16,0,-Dept/16);glVertex3f(-wide/16,0,-Dept/16);glEnd();void create_ceil()int

45、 j =1;int i=1;glTranslatef(0,height,0);glNormal3f(0,1,0);for(;j=16;j+)glTranslatef(-wide+j*wide/8-wide/16,0,0);/printf(%d ,j);for(i=1;i=16;i+)glTranslatef(0,0,-Dept+i*Dept/8-Dept/16);create_quad(i,j);glTranslatef(0,0,Dept-i*Dept/8+Dept/16);glTranslatef(wide-j*wide/8+wide/16,0,0);glTranslatef(0,-heig

46、ht,0);void drawSphere(GLfloat xx=0,GLfloat yy=0,GLfloat zz=0,int flag=0)GLfloat radius;if(flag = 0)radius=2*wide/8;elseradius=wide/16;GLfloat M=20;GLfloat N=20;float step_z = PI/M;float step_xy = 2*PI/N;float x4,y4,z4;float angle_z = 0.0;float angle_xy = 0.0;int i=0, j=0;if(flag = 0)glColor3f(0.5,0.

47、25,0);elseglColor3f(1.0,1.0,1.0);glBegin(GL_QUADS);for(i=0; iM; i+)angle_z = i * step_z;for(j=0; jN; j+)angle_xy = j * step_xy; x0 = radius * sin(angle_z) * cos(angle_xy);y0 = radius * sin(angle_z) * sin(angle_xy);z0 = radius * cos(angle_z);x1 = radius * sin(angle_z + step_z) * cos(angle_xy);y1 = ra

48、dius * sin(angle_z + step_z) * sin(angle_xy);z1 = radius * cos(angle_z + step_z);x2 = radius*sin(angle_z + step_z)*cos(angle_xy + step_xy);y2 = radius*sin(angle_z + step_z)*sin(angle_xy + step_xy);z2 = radius*cos(angle_z + step_z);x3 = radius * sin(angle_z) * cos(angle_xy + step_xy);y3 = radius * si

49、n(angle_z) * sin(angle_xy + step_xy);z3 = radius * cos(angle_z);for(int k=0; k4; k+)glNormal3f(xk,yk,zk);glVertex3f(xx+xk, yy+yk,zz+zk);glEnd();void yuanzhui()glTranslatef(-wide/2,-height,-Dept/2);glBegin(GL_TRIANGLE_FAN);glColor3f(0,0.25,0.5);glNormal3f(1,1,1);glVertex3f(0,height/1.2,0);for(int i=0

50、;i=32;i+)glVertex3f(0.2*cos(i*PI/16),0,0.2*sin(i*PI/16);glEnd();glBegin(GL_TRIANGLE_FAN);glColor3f(0,0.25,0.5);glNormal3f(0,1,0);glVertex3f(0,0,0);for(int i=0;i=32;i+)glVertex3f(0.2*cos(i*PI/16), 0.01 , 0.2*sin(i*PI/16);glEnd();glTranslatef(wide/2,height,Dept/2);void createFurnishings()/glSolidSpher

51、e();glTranslatef(0,-height+2*wide/8,-Dept+2*Dept/8);drawSphere();glTranslatef(0,height-2*wide/8,Dept-2*Dept/8);yuanzhui();void draw(GLenum mode)glMatrixMode(GL_MODELVIEW);if(flag_light = 1)glEnable(GL_LIGHTING);glEnable(GL_LIGHT0);elseglDisable(GL_LIGHTING);glDisable(GL_LIGHT0);createLightAndProxy(m

52、ode);create_wall();create_floor();create_ceil();createFurnishings();void RenderScene(GLenum mode)glMatrixMode(GL_MODELVIEW);if(flag_light = 1)glEnable(GL_LIGHTING);glEnable(GL_LIGHT0);elseglDisable(GL_LIGHTING);glDisable(GL_LIGHT0);glLightf(GL_LIGHT0,GL_CONSTANT_ATTENUATION,1.5);glLightf(GL_LIGHT0,G

53、L_LINEAR_ATTENUATION,0);glLightfv(GL_LIGHT0,GL_AMBIENT,light_ambient);glLightfv(GL_LIGHT0,GL_DIFFUSE,light_diffuse);glLightfv(GL_LIGHT0,GL_SPECULAR,light_specular);glTranslatef(0.0 , -2*height , 0.0);glFrontFace(GL_CW);glScalef(1.0f, -1.0f, 1.0f);glTranslatef(2*movex/wide_screen,2*movey/height_scree

54、n,2*movez/wide_screen);glLightfv(GL_LIGHT0,GL_POSITION,light_postion);glTranslatef(-2*movex/wide_screen,-2*movey/height_screen,-2*movez/wide_screen);create_wall();create_ceil();createFurnishings();glScalef(1.0f, -1.0f, 1.0f);glTranslatef(0.0 , 2*height , 0.0);glFrontFace(GL_CCW);glDisable(GL_LIGHTIN

55、G);glEnable(GL_BLEND);glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);create_floor();glDisable(GL_BLEND);glEnable(GL_LIGHTING);draw(mode);void display()glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);glMatrixMode(GL_PROJECTION);glLoadIdentity();gluPerspective(60,1,1,30);gluLookAt(eyex,eyey,eyez,0

56、,0,0,0,1,0);/draw(GL_RENDER);RenderScene(GL_RENDER);glFlush();glutSwapBuffers();int flag_move = 0 ;void process(GLint hits,GLuint buffer)unsigned int i, j;GLint names, *ptr;/printf (hits = %dn, hits);ptr = (GLint *) buffer;for (i = 0; i hits; i+) /* for each hit */names = *ptr;ptr+=3;for (j = 0; j n

57、ames; j+) /* for each name */if(*ptr=1)flag_move = 1;ptr+;GLuint select_BufferSIZE;void mouse(int key,int state,int x,int y)GLint hits;GLint viewport4;if(key = GLUT_LEFT_BUTTON & state = GLUT_DOWN)mousex = x;mousey = y;glGetIntegerv(GL_VIEWPORT,viewport);glSelectBuffer(SIZE,select_Buffer);glRenderMode(G