实验04_纹理映射

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1、计算机图形学实验报告04北方工业大学计算机图形学课程实验报告题目：实验04_纹理映射学院：计算机学院专业：数字媒体技术指导教师：蔡兴泉学生班级：数媒13-2学生学号：13101090212学生姓名：常乐教师评定：1计算机图形学实验报告03学号：13101090212班级：数媒13-2姓名：常乐实验报告4纹理映射一．实验目的1．熟悉OpenGL图形库；2．掌握纹理映射实现方法。二．实验环境1．软件环境：操作系统：WinXp应用软件：VC6.0，OpenGL2．硬件环境（查看自己的机子）CPU:IntelPIV2.80GHz内存RAM:1GB显卡：

2、NVIDIAGeForce7650，256M显存三．实验内容1实现简单纹理映射。三维空间中画一个三角形，贴纹理。纹理图自己从网上下载给出源程序及效果截图。voidRenderScene(void){GLTVector3vNormal;GLTVector3vCorners[5]={{0.0f,.80f,0.0f},//Top0{-0.5f,0.0f,-.50f},//Backleft1{0.5f,0.0f,-0.50f},//Backright2{0.5f,0.0f,0.5f},//Frontright3{-0.5f,0.0f,0.5f}};//

3、Frontleft4//ClearthewindowwithcurrentclearingcolorglClear(GL_COLOR_BUFFER_BIT

4、GL_DEPTH_BUFFER_BIT);//SavethematrixstateanddotherotationsglPushMatrix();//MoveobjectbackanddoinplacerotationglTranslatef(0.0f,-0.25f,-4.0f);glRotatef(xRot,1.0f,0.0f,0.0f);glRotatef(yRot,0.0f,1.0f,

5、0.0f);//DrawthePyramidglColor3f(1.0f,1.0f,1.0f);glBegin(GL_TRIANGLES);10计算机图形学实验报告03//Bottomsection-twotrianglesglNormal3f(0.0f,-1.0f,0.0f);glTexCoord2f(1.0f,1.0f);glVertex3fv(vCorners[2]);glTexCoord2f(0.0f,0.0f);glVertex3fv(vCorners[4]);glTexCoord2f(0.0f,1.0f);glVertex3fv(v

6、Corners[1]);glTexCoord2f(1.0f,1.0f);glVertex3fv(vCorners[2]);glTexCoord2f(1.0f,0.0f);glVertex3fv(vCorners[3]);glTexCoord2f(0.0f,0.0f);glVertex3fv(vCorners[4]);//FrontFacegltGetNormalVector(vCorners[0],vCorners[4],vCorners[3],vNormal);glNormal3fv(vNormal);glTexCoord2f(0.5f,1.

7、0f);glVertex3fv(vCorners[0]);glTexCoord2f(0.0f,0.0f);glVertex3fv(vCorners[4]);glTexCoord2f(1.0f,0.0f);glVertex3fv(vCorners[3]);//LeftFacegltGetNormalVector(vCorners[0],vCorners[1],vCorners[4],vNormal);glNormal3fv(vNormal);glTexCoord2f(0.5f,1.0f);glVertex3fv(vCorners[0]);glTe

8、xCoord2f(0.0f,0.0f);glVertex3fv(vCorners[1]);glTexCoord2f(1.0f,0.0f);glVertex3fv(vCorners[4]);//BackFacegltGetNormalVector(vCorners[0],vCorners[2],vCorners[1],vNormal);glNormal3fv(vNormal);10计算机图形学实验报告03glTexCoord2f(0.5f,1.0f);glVertex3fv(vCorners[0]);glTexCoord2f(0.0f,0.0f)

9、;glVertex3fv(vCorners[2]);glTexCoord2f(1.0f,0.0f);glVertex3fv(vCorners[1]);