三維圖形學(xué)試驗(yàn)報(bào)告

實(shí)驗(yàn)1.(1)三角形:#include<glut.h>//glut.hincludesgl.handglu.hvoidinit(void){glClearColor(0.0,0.0,0.0,0.0);}Jvoidreshape(ntw,inth){glViewport(0,0,(GLsizei)w,(GLsizei)h);glMatrixMode(GL_PROJECTION);//指定哪一個(gè)矩陣是當(dāng)前矩陣glLoadIdentity();//重置當(dāng)前指定的矩陣為單位矩陣。gluOrtho2D(-1.0,1.0,-1.0,1.0);//Theparaare:(left,right,bottom,top)定義二維正交投影矩陣glMatrixMode(GL_MODELVIEW);//指定哪一個(gè)矩陣是當(dāng)前矩陣}voiddisplay(void){glClear(GL_COLOR_BUFFER_BIT);//CleartheframebufferglColor3f(0.0,1.0,0.0);//SetcurrentcolortogreenglBegin(GLPOLYGON);//DrawthetriangleglVertex2f(-0.7,-0.7);glVertex2f(0.7,-0.7);glVertex2f(0,0.7);glEnd();glFlush();//Forcetodisplaythenewdrawingsimmediately}intmain(intargc,char**argv){glutInit(&argc,argv);//InitializeGLUTfunctioncallingsglutInitWindowSize(400,400);glutInitWindowPosition(200,100);//innumbersofpixelsglutCreateWindow("GreenTriangle");glutDisplayFunc(display);//iscreatedorre-drewinit();//InvokethisfunctionforinitializationglutMainLoop();//Entertheeventprocessingloop

return0;//Indicatenormaltermination//(RequiredbyANSIC)}//操作，定義事件回調(diào)函數(shù)(2)點(diǎn):voiddisplay(){glClear(GL_COLOR_BUFFER_BIT);//CleartheframebufferglColor3f(0.0,1.0,0.0);//SetcurrentcolortogreenglPointSize(10.);glBegin(GLPOINTS);glVertex2i(0.5,0.5);glEnd();glFlush();//Forcetodisplaythenewdrawingsimmediately}(3)線段:voiddisplay(){glClear(GLCOLORBUFFERBIT);//CleartheframebufferglColor3f(0.0,1.0,0.0);//SetcurrentcolortogreenglLineWidth(3.0);glBegin(GL_LINES);

glVertex3f(0.,0.,0.);glVertex3f(0.,1.,0.);glEnd();glFlush();//Forcetodisplaythenewdrawingsimmediately}(4)四邊形：voiddisplay(){glClear(GL_COLOR_BUFFER_BIT);//CleartheframebufferglColor3f(1.0,0.0,0.0);//SetcurrentcolortogreenglRectf(0.6,0.3,0.2,0.8);intvertex1[]={0.6,0.3};intvertex2口={0.2,0.8};glRectiv(vertex1,vertex2);glFlush();//Forcetodisplaythenewdrawingsimmediately}2.立方體:3.voidreshape(ntw,inth){glViewport(0,0,w,h);glMatrixMode(GLPROJECTION);glLoadIdentity();glOrtho(-3.0,3.0,-3.0,3.0,-3.0,3.0);}voiddisplay(){glClear(GL_COLOR_BUFFER_BIT);//CleartheframebufferglMatrixMode(GLMODELVIEW);glLoadIdentity();gluLookAt(1.0,1.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0);glutWireCube(0.5);glutSwapBuffers();glColor3f(0.0,1.0,0.0);glBegin(GLLINELOOP);//GreenglVertex3f(0.,0.,0.);glVertex3f(0.,2,0.);glVertex3f(2,2,0.);glVertex3f(2,0.,0.);glEnd();glColor3f(1.0,1.0,0.0);glBegin(GLLINELOOP);//YellowglVertex3f(0.,0.,2);glVertex3f(2,0.,2);glVertex3f(2,2,2);glVertex3f(0.,2,2);glEnd();glColor3f(0.0,1.0,1.0);glBegin(GL_LINES);//CyanglVertex3f(0.,0.,0.);glVertex3f(0.,0.,2);glVertex3f(0.,2,0.);glVertex3f(0.,2,2);glVertex3f(2,0.,0.);glVertex3f(2,0.,2);glVertex3f(2,2,0.);glVertex3f(2,2,2);glEnd();glFlush();//Forcetodisplaythenewdrawingsimmediately}3.(1)三角形條帶■stripvoiddisplay(){glClear(GL_COLOR_BUFFER_BIT);//CleartheframebufferGLfloatv0[]={0.,0.3},v1[]={0.2,0.6},v2[]={0.4,0.3},v3[]={0.5,0.6},v4[]={0.6,0.3},v5[]={0.8,0.6},glColor3f(1.0);glBegin(GLTRIANGLESTRIP);//三角形條帶函數(shù)glVertex2fv(v0);glVertex2fv(v1);glVertex2fv(v2);glVertex2fv(v3);glVertex2fv(v4);glVertex2fv(v5);glEnd();glFlush();//Forcetodisplaythenewdrawingsimmediately}3.(2)三角形扇形GLfloatv0[]={0.,0.3},v1[]={0.3,0.7},v2[]={0.5,0.65},v3[]={0.5,0.5},v4[]={0.45,0.4},v5[]={0.3,0.35},glColor3f(1.0);glBegin(GL_TRIANGLE_FAN);〃共享一個(gè)頂點(diǎn)glVertex2fv(v0);glVertex2fv(v1);glVertex2fv(v2);glVertex2fv(v3);glVertex2fv(v4);glVertex2fv(v5);glEnd();glFlush();//Forcetodisplaythenewdrawingsimmediately}實(shí)驗(yàn)二1.點(diǎn)glColor3f(0.0,1,0,0.0);glPointSize(3.);glBegin(GLPOINTS);glVertex3f(0.1,0,5,0);glColor3f(1.0,1,0,0.0);glPointSize(5.);glBegin(GL_POINTS);glVertex3f(0.5,0,5,0);glColor3f(1.0,0,0,0.0);glPointSize(10.);glBegin(GLPOINTS);glVertex3f(0.3,0,4,0);glColor3f(0.0,0,0,1.0);glPointSize(1.);glBegin(GLPOINTS);glVertex3f(0.2,0,6,0);glColor3f(1.0,1,0,1.0);glPointSize(4.);glBegin(GLPOINTS);glVertex3f(0.3,0,5,0);glEnd();glFlush();//Forcetodisplaythenewdrawingsimmediately)2直線glColor3f(0.0,1,0,0.0);glLineWidth(1.0);glBegin(GLLINES);glVertex3f(0.3,0.1,0.0);glVertex3f(0.3,0.5,0.0);//垂直距離glColor3f(1.0,1,0,0.0);glLineWidth(3.);//寬度glBegin(GLLINES);glVertex3f(0.2,0,1,0.0);glVertex3f(0.2,0,5,0.0);glColor3f(1.0,0,0,0.0);glLineWidth(5.);glBegin(GLLINES);glVertex3f(0.5,0,1,0.0);glVertex3f(0.5,0,5,0.0);glEnd();glFlush();//Forcetodisplaythenewdrawingsimmediately)3,直線，虛線，點(diǎn)劃線glColor3f(1.0,0,0,0.0);glLineWidth(2.0);glBegin(GL_LINES);glVertex2f(0.0,0.3);glVertex2f(0.8,0.3);glEnd();glColor3f(1.0,0,0,0.0);glEnable(GLLINESTIPPLE);glLineStipple(1,0x0101);glLineWidth(2.0);glBegin(GL_LINES);glVertex2f(0.0,0.5);glVertex2f(0.8,0.5);glEnd();glColor3f(1.0,0,0,0.0);glEnable(GLLINESTIPPLE);glLineStipple(1,0xffcc);glLineWidth(2.0);glBegin(GL_LINES);glVertex2f(0.0,0.8);glVertex2f(0.8,0.8);glEnd();

.頂點(diǎn)不同顏色的三角形平滑填充glShadeModel(GLSMOOTH);glBegin(GL_TRIANGLES);glColor3f(0.0,0,0,1.0);glPointSize(5.0);glVertex2f(0.3,0.3);glColor3f(1.0,0,0,0.0);glPointSize(5.0);glVertex2f(0.4,0.6);glColor3f(1.0,1,0,0.0);glPointSize(5.0);glVertex2f(0.5,0.4);glEnd();.調(diào)用glPolygonMode(face,displayMode);

.兩個(gè)正方形混合glEnable(GL_BLEND);glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUSSRCALPHA);//混合glColor4f(0.0,1.0,0.0,0.5);//SetcurrentcolortogreenglRectf(0.6,0.3,0.2,0.8);intvertex1[]={0.6,0.3};intvertex2[]={0.2,0.8};glRectiv(vertex1,vertex2);glColor4f(0.0,0.0,1.0,0.5);//SetcurrentcolortogreenglRectf(0.5,0.2,0.1,0.5);intvertex3口={0.5,0.2};intvertex4口={0.1,0.5};glRectiv(vertex3,vertex4);[n回KglEnable(GL_BLEND);glBlendFunc(GL_SRC_ALPHA,GL_ZERO);glEnable(GL_BLEND);glBlendFunc(GL_ONE,GL_ZERO);說(shuō)明：用函數(shù)glBlendFunc(sFactor,dFactor)選擇調(diào)和因子的值產(chǎn)生不同的混合效果，有GL_ONE,GL_ZERO,GL_SRC_ALPHAGL_DST_ALPHA,GL_ONE_MINUS_SRC_ALPHA等實(shí)驗(yàn)三1.平移glMatrixMode(GLMODELVIEW);glColor3f(1.0,1,0,0.0);glRectf(0.6,0,3,0,2,0.8);glColor3f(1.0,0,0,0.0);glTranslatef(-0.5,-0.3,0.0);glRectf(0.6,0,3,0,2,0.8);旋轉(zhuǎn)：glColor3f(1.0,1,0,0.0);glRectf(0.6,0,3,0,2,0.8)glLoadIdentity();glRotatef(90.0,0,0,0,0,1.0);glRectf(0.6,0,3,0,2,0.8);■3line縮放:glColor3f(0.0,1,0,1.0);glLoadIdentity();glScalef(-0.5,1.0,1.0);glRectf(0.6,0,3,0,2,0.8);3.桌子繪制voidtable(){glColor3f(0.0,1,0,1.0);glRectf(-0.5,0,3,0.5,-0.3);glColor3f(1.0,1,0,0.0);glRectf(-0.4,0,25,0.4,0.15);glColor3f(1.0,1,0,0.0);glRectf(-0.4,0,25,-0.3,-0.15);glColor3f(1.0,1,0,0.0);glRectf(0.3,0,25,0.4,-0.15);glColor3f(1.0,1,0,0.0);glRectf(-0.4,-0.15,0.4,-0.25);glColor3f(1.0,0,2,0.0);glRotatef(-45.0,0,0,0,0,1.0);glTranslatef(0.15,0.35,0.0);glRectf(-0.3,-0.15,0.3,-0.25);glLoadIdentity();glColor3f(1.0,0,2,0.0);glRotatef(-90,0.0,0,0,1.0);glTranslatef(-0.35,-0.15,0.0);glRectf(-0.3,-0.15,0.3,-0.25);glLoadIdentity();glColor3f(1.0,0,2,0.0);glRotatef(-90,0.0,0,0,1.0);glTranslatef(-0.65,0.15,0.0);glRectf(-0.3,-0.15,0.3,-0.25);glLoadIdentity();glColor3f(1.0,0,2,0.0);glRotatef(-90,0.0,0,0,1.0);glTranslatef(-0.2,0,6,0.0);glRectf(-0.3,-0.15,0.3,-0.25);)voiddisplay(){glClear(GLCOLORBUFFERBIT|GL_DEPTH_BUFFER_BIT);//CleartheframebufferglMatrixMode(GLMODELVIEW);glPushMatrix();glRotatef(-45.0,0,0,0,0,1.0);table();glPopMatrix();glFlush();}.4.編程繪制羅馬字母IV和XIV:voidword(){glColor3f(1.0,1.0,1.0);glBegin(GLLINES);glVertex2f(-0.25,0.3);glVertex2f(-0.2,0.3);glEnd();glColor3f(1.0,1.0,1.0);glBegin(GL_LINES);glVertex2f(-0.25,0.0);glVertex2f(-0.15,0.0);glEnd();glColor3f(1.0,1.0,1.0);glBegin(GL_LINES);glVertex2f(-0.2,0.0);glVertex2f(-0.2,0.3);glEnd();glColor3f(1.0,1.0,1.0);glBegin(GL_LINES);glVertex2f(-0.2,0.3);glVertex2f(-0.1,0.3);glEnd();glColor3f(1.0,1.0,1.0);glBegin(GL_LINES);glVertex2f(0.1,0.3);glVertex2f(0.2,0.3);glEnd();}voidlines(){glMatrixMode(GLMODELVIEW);glLoadIdentity();glColor3f(1.0,1.0,1.0);glRotatef(30,0.0,0.0,1.0);glTranslatef(0.03,0.04,0.0);glRectf(-0.01,0.3,0,0);glLoadIdentity();glColor3f(1.0,1.0,1.0);glRotatef(-30,0.0,0.0,1.0);glTranslatef(-0.03,0.04,0.0);glRectf(0.01,0.3,0,0);)X:voidlines(){glMatrixMode(GL_MODELVIEW);glLoadIdentity();glColor3f(1.0,1.0,1.0);glRotatef(28,0.0,0.0,1.0);glTranslatef(0.03,0.0,0.0);glRectf(-0.01,0.35,0,-0.35);glLoadIdentity();glColor3f(1.0,1.0,1.0);glRotatef(-28,0.0,0.0,1.0);glTranslatef(-0.03,0.0,0.0);glRectf(0.01,0.35,0,-0.35);)voidword(){glMatrixMode(GL_MODELVIEW);glColor3f(1.0,1.0,1.0);glBegin(GL_LINES);glVertex2f(-0.2,0.32);glVertex2f(-0.1,0.32);glBegin(GLLINES);glVertex2f(0.1,0.32);glVertex2f(0.2,0.32);glEnd();}voiddisplay(){glClear(GLCOLORBUFFERBIT|GLDEPTHBUFFERBIT);//CleartheframebufferglPushMatrix();glScalef(1.0,-1.0,1.0);word();glScalef(1.0,-1.0,1.0);word();lines();glPopMatrix();glFlush();)實(shí)驗(yàn)四1.繪制房子voidreshape(ntw,inth)(glViewport(0,0,w,h);glMatrixMode(GL_PROJECTION);glLoadIdentity();|glOrtho(-3.0,3.0,-3.0,3.0,-3.0,3.0);}voiddisplay(){glClear(GLCOLORBUFFERBIT);//CleartheframebufferglMatrixMode(GL_MODELVIEW);glLoadIdentity();gluLookAt(1.0,1.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0);glutSwapBuffers();glShadeModel(GLFLAT);glColor3f(1.0,1.0,1.0);glBegin(GLLINELOOP);glVertex3f(0.4,-0.4,-0.4);glVertex3f(0.4,0.2,-0.4);glVertex3f(0,0.4,-0.4);glVertex3f(-0.4,0.2,-0.4);glVertex3f(-0.4,-0.4,-0.4);glEnd();glColor3f(1.0,1,0,1.0);glBegin(GL_LINE_LOOP);glVertex3f(0.5,-0.4,0.6);glVertex3f(0.4,0,2,0.4);glVertex3f(0,0,4,0.4);glVertex3f(-0.4,0,2,0.4);glVertex3f(-0.3,-0.4,0.5);glEnd();glColor3f(1.0,1,0,1.0);glBegin(GL_LINES);//CyanglVertex3f(0.4,-0.4,-0.4);glVertex3f(0.5,-0.4,0.6);glVertex3f(0.4,0.2,-0.4);glVertex3f(0.4,0,2,0.4);glVertex3f(0,0.4,-0.4);glVertex3f(0,0,4,0.4);glVertex3f(-0.4,0.2,-0.4);glVertex3f(-0.4,0,2,0.4);glVertex3f(-0.4,-0.4,-0.4);glVertex3f(-0.3,-0.4,0.5);glEnd();glFlush();)2.voidinit(){glClear(GL_COLOR_BUFFER_BIT);glMatrixMode(GLMODELVIEW);gluLookAt(1.0,1,0,1,0,0,0,0,0,0,0,0,0,1,0,0.0);glMatrixMode(GL_MODELVIEW);glFrustum(-0.4,0.5,-0.2,0.2,-0.2,0.6)實(shí)驗(yàn)五刪除代碼glEnable(GL_LIGHT0);//theearth/*glPushMatrix();glTranslatef(RAD*cos(theta),RAD*sin(theta),0.);glRotatef(23.5,0.,1.,0.);glMaterialfv(GL_FRONT_AND_BACK,GL_AMBIENT,pink);glMaterialfv(GLFRONTANDBACK,GLDIFFUSE,pink);glMaterialfv(GLFRONTANDBACK,GLSPECULAR,light0color);glMaterialfv(GLFRONTANDBACK,GLSHININESS,matshininess);glLineWidth(2.);glBegin(GL_LINES);glVertex3f(0.,0.,.5);glVertex3f(0.,0.,-.5);glEnd();glScalef(.33,.33,.33);glMaterialfv(GL_FRONT_AND_BACK,GL_AMBIENT,cyan);glMaterialfv(GLFRONTANDBACK,GLDIFFUSE,cyan);glMaterialfv(GLFRONTANDBACK,GLSPECULAR,light0color);glMaterialfv(GL_FRONT_AND_BACK,GL_SHININESS,mat_shininess);gluSphere(Q2,1.,50,50);glPopMatrix();*///theearth'sequatorialplane/*glPushMatrix();glTranslatef(RAD*cos(theta),RAD*sin(theta),0.);glRotatef(23.5,0.,1.,0.);glMaterialfv(GL_FRONT_AND_BACK,GL_AMBIENT,clear);glMaterialfv(GLFRONTANDBACK,GLDIFFUSE,clear);glMaterialfv(GLFRONTANDBACK,GLSPECULAR,light0color);glMaterialfv(GLFRONTANDBACK,GLSHININESS,matshininess);glBegin(GL_QUADS);glVertex3f(-5.*D,-D,0.);glVertex3f(5.*D,-D,0.);glVertex3f(5.*D,D,0.);glVertex3f(-5.*D,D,0.);glEnd();glPopMatrix();*/1.2關(guān)閉光照glDisable(GL_LIGHTING);Thi白aiHhWpf'&grMiifrfijf&undthe力1.3去除太陽(yáng)的光照處理（LIGHT1）和著色處理，觀察效果13The粉3日K工progpess-iomgroundthewn1.4基于i.i,使用以下代碼，觀察全局環(huán)境光的效果glLightfv(GL_LIGHT1,GL_POSITION,light1_position);glLightfv(GL_LIGHT1,GL_AMBIENT,ambient_c010r);glLightModelfv(GL_LIGHT_MODEL_AMBIENT,black);■'Theearth'spro^res-^ionaroLindfchesunglEnable(GL_LIGHT1);

基于1.1,使用以下代碼觀察效果:glMaterialfv(GL_FRONT_AND_BACK,GL_AMBIENT,white);glMaterialfv(GL_FRONT_AND_BACK,GL_AMBIENT,black);r-■r-■Theearth'sprogrewionaroundthesun「回基于1.1,局部環(huán)境光設(shè)置為紅色，環(huán)境光材質(zhì)設(shè)為藍(lán)色，觀察效果;GLfloatambient_color口={1.0,0.0,0.0,1.0};//局部環(huán)境光glMaterialfv(GL_FRONT_AND_BACK,GL_AMBIENT,blue);//環(huán)境光材質(zhì)r?'ITheearth'sprogressionaruyndtheiun基于1.1,只打開(kāi)漫反射的效果，改變光源1的位置，觀察漫反射角度對(duì)光照效果的影響；GLfloatlight1position[]={1.0,5.0,10.0,0.0};glLightfv(GLLIGHT1,GLPOSITION,light1position);glLightfv(GL_LIGHT1,GL_SPECULAR,light1_color);glShadeModel(GLFLAT);glLightfv(GLLIGHT1,GLPOSITION,light1position);glLightfv(GL_LIGHT1,GL_DIFFUSE,light1_color);基于1.1,只打開(kāi)鏡面反射的效果，分別進(jìn)行以下設(shè)置，觀察鏡面反射角度對(duì)光照效果的影響（將光澤度值設(shè)置小一些）只改變光源1的位置GLfloatmat_shininess[]={15.0};glLightfv(GL_LIGHT1,GL_POSITION,light1_position);glLightfv(GL_LIGHT1,GL_SPECULAR,light1_color);glEnable(GLLIGHT1);glMaterialfv(GL_FRONT_AND_BACK,GL_SPECULAR,light0_color);glMaterialfv(GL_FRONT_AND_BACK,GL_SHININESS,mat_shininess);11Theearth'sprogressionaroundthesun只改變視點(diǎn)的位置gluLookAt(0.0,50.0,3.0,2.0,3.0,-1.0,0.0,0.0,1.0);■J"11Theearth'sprogressionaroundthesun只改變視點(diǎn)的位置gluLookAt(0.0,50.0,3.0,2.0,3.0,-1.0,0.0,0.0,1.0);■J"TheCiarth'sprogressionaroundthesun同時(shí)改變光源1和視點(diǎn)的位置■卜Theearth'sprogressionaroLindthesun基于1.1,為光源1定義聚光燈，并調(diào)整3個(gè)參數(shù)，觀察光照效果（參數(shù)為GL_SPOT_DIRECTIQNGL_SPOT_CUTOFFGL_SPOT_EXPONENT基于1.1,建立光線衰減模型，分別調(diào)整常量、一次和二次衰減參數(shù)（參數(shù)為GL_CONSTANT_ATTENUATIOGL_LINEAR_ATTENUATION3L_QUADRATIC_ATTENUADO毗察光照效果;GLfloatspot_direction[]={0.0,0.0,-1.0};glLightfv(GLLIGHT1,GLSPOTDIRECTION,spotdirection);glLightf(GLLIGHT1,GLSPOTCUTOFF,50.0);glLightf(GL_LIGHT1,GL_SPOT_EXPONENT,2.5);1.11基于1.1,分別使用GL_FLAT和GL_SMOOT刪察這兩種不同著色處理，并分析;GLFLATGL_SMOOTH前者是使用線性插值方式填充，后者是默認(rèn)為填充的顏色。參照texturel.c的例子，在Photoshop生成一幅2D紋理圖，并映射在立方體表面;#include<stdlib.h>#include<stdio.h>#include<math.h>voidmyinit(void);voidmakeImage(void);/*讀取紋理*/#defineTEXWIDTH256#defineTEXHEIGHT256GLubytetexImage[TEX_WIDTH][TEX_HEIGHT][3];voidreadTexture(void)(FILE*fd;GLubytech;inti,j,k;fd=fopen("HongKong.256.256.raw","rb");for(i=0;i<TEX_WIDTH;i++)//foreachrowTOC\o"1-5"\h\z(for(j=0;j<TEXHEIGHT;j++)//foreachcolumn(for(k=0;k<3;k++)//readRGBcomponentsofthepixel}fclose(fd);}voidmyinit(void)(glClearC010r(0.0,0.0,0.0,0.0);glEnable(GLDEPTHTEST);glDepthFunc(GL_LESS);readTexture();glPixelStorei(GL_UNPACK_ALIGNMENT,1);/*定義紋理*/glTexImage2D(GLTEXTURE2D,0,3,TEXWIDTH,TEXHEIGHT,0,GLRGB,GLUNSIGNEDBYTE,&texImage[0][0][0]);/*控制濾波*/glTexParameterf(GLTEXTURE2D,GLTEXTUREWRAPS,GLCLAMP)glTexParameterf(GLTEXTURE2D,GLTEXTUREWRAPT,GLCLAMP)glTexParameterf(GLTEXTURE2D,GLTEXTUREMAGFILTER,GLNEAREST);glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);/*說(shuō)明映射方式*/glTexEnvf(GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE,GL_DECAL);/*啟動(dòng)紋理映射*/glEnable(GL_TEXTURE_2D);glShadeModel(GL_FLAT);}voiddisplay(void){glClear(GLCOLORBUFFERBIT|GLDEPTHBUFFERBIT);/*設(shè)置紋理坐標(biāo)和物體幾何坐標(biāo)*/glBegin(GL_QUADS);glTexCoord2f(1.0,1.0);glVertex3f(-2.0,-1.0,0.0);glTexCoord2f(1.0,0.0);glVertex3f(-2.0,1.0,0.0);glTexCoord2f(0.0,0.0);glVertex3f(0.0,1.0,0.0);glTexCoord2f(0.0,1.0);glVertex3f(0.0,-1.0,0.0);glTexCoord2f(0.0,0.0);glVertex3f(1.0,-1.0,0.0);glTexCoord2f(0.0,1.0);glVertex3f(1.0,1.0,0.0);glTexCoord2f(1.0,1.0);glVertex3f(2.41421,1.0,-1.41421);glTexCoord2f(1.0,0.0);glVertex3f(2.41421,-1.0,-1.41421);glEnd();glutSwapBuffers();}voidreshapeGLsizeiw,GLsizeih){glViewport(0,0,w,h);glMatrixMode(GL_PROJECTION);glLoadIdentity();gluPerspective(60.0,1.0*(GLfloat)w/(GLfloat)h,1.0,30.0);glMatrixMode(GL_MODELVIEW);glLoadIdentity();glTranslatef(0.0,0.0,-3.6);}intmain(intargc,char**argv){//StandardGLUTinitializationglutInit(&argc,argv);glutInitDisplayMode(GLUTDOUBLE|GLUT_RGB|GLUT_DEPTH);glutInitWindowSize(500,500);glutInitWindowPosition(70,70);glutCreateWindow("Awhitecubewiththreecoloredlights");glutDisplayFunc(display);glutReshapeFunc(reshape);myinit();glutMainLoop();參照texture2.c的例子，在另外一個(gè)不同的立方體面上，增加類似的人工紋理;實(shí)驗(yàn)七參照教材20.6.2節(jié)，實(shí)現(xiàn)完整的鍵盤回調(diào)函數(shù)平移功能，能對(duì)實(shí)驗(yàn)四中繪制的小房子進(jìn)行移動(dòng)交互。voidreshape(ntw,inth){glViewport(0,0,w,h);glMatrixMode(GLPROJECTION);glLoadIdentity();glOrtho(-3.0,3.0