三维设计实验

1、电子科技大学信息与软件工程学院三维图形程序设计综合实验标准实验报告（实验）课程名称三维图形程序设计电子科技大学教务处制表实验目的按比例大小绘制太阳系（太阳、地球、月亮）自动纹理映射地球以及月亮的自转地球以及月亮的公转#include windows.h”#include #include #include #define SunSize 0.6#define EarthSize 0.2#define MoonSize 0.1GLUquadricObj* g_quadratic_sun;GLUquadricObj* g_quadratic_earth;GLUquadricObj* g_quadr

2、atic_moon;GLuint sun_texture;GLuint earth_texture;GLuint moon_texture;GLfloat year = 0.0; /degreesGLfloat day = 0.0;GLfloat moonAroundEarth = 0.0;/月亮绕地球的速度GLfloat moonItsSelf = 0.0;/月球自转的速度GLfloat EarthOrbitRadius = 1.0; /地球轨道半径GLfloat MoonOrbitRadius = 0.3;/月亮轨道半径？#pragma comment( lib, opengl32.lib

3、) OpenGL32.lib While Linking ( NEW ) #pragma comment( lib, glu32.lib) GLu32.lib While Linking ( NEW ) #pragma comment( lib, glaux.lib) GLaux.lib While Linking ( NEW )读取BMP类型的图形文件tAUX_RGBImageRec *LoadBMP(const char Filename) Image FILE *File = NULL;Handleif (!Filename)A Filename Was Givenreturn NULL

4、;NULLFile = fopen(Filename, r);See If The File Existsif (File)File Exist?fclose(File);Handlereturn auxDIBImageLoad(Filename);And Return A Pointerreturn NULL;Return NULL /加载绑定纹理GLuint LoadGLTexture(const char *filename) Convert To Textures AUX_RGBImageRec *pImage;/ Search For/ Search For/ Search For/

5、 Loads A Bitmap/ File/ Make Sure/ If Not Return/ Check To/ Does The/ Close The/ Load The Bitmap/ If Load Failed/ Load Bitmaps And/ Create Storage/ Texture IDSpace For The Texture GLuint texture = 0;pImage = LoadBMP(filename);/ Loads TheBitmap Specified By filename/ Load The Bitmap, Check For Errors,

6、 If Bitmaps Not Found Quitif (pImage != NULL & pImage-data != NULL)/ If Texture ImageExistsglGenTextures(1, &texture);/ Create TheTexture/ Typical Texture Generation Using Data From The BitmapglBindTexture(GL_TEXTURE_2D, texture);glTexImage2D(GL_TEXTURE_2D, 0, 3, pImage-sizeX, pImage-sizeY, 0, GL_RG

7、B, GL_UNSIGNED_BYTE, pImage-data);glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);/ Free The/ Free The Imagefree(pImage-data);Texture Image Memory free(pImage);Structurereturn texture;/ Return TheStatus void RenderScen

8、e(void) glPushMatrix();glEnable(GL_TEXTURE_2D);gluLookAt(0.0, 0.0, -4.0,0.0, 0.0,1.0,0.0, 1.0,0.0);绘制太阳glColor3f(1.0, 1.0, 0.0);glBindTexture(GL_TEXTURE_2D, sun_texture); gluSphere(g_quadratic_sun, SunSize, 32, 32);glPushMatrix();地球公转glRotatef(year, 0.0, 1.0, 0.0);glTranslatef(EarthOrbitRadius, 0.0,

9、 0.0);glRotatef(-year, 0.0, 1.0, 0.0);glPushMatrix();地球自转 glRotatef(day, 0.25, 1.0, 0.0);绘制地球glColor3f(0.0, 0.0, 1.0);glBindTexture(GL_TEXTURE_2D, earth_texture);/绑定纹理 gluSphere(g_quadratic_earth, EarthSize, 32, 32);glPopMatrix();月球公转glRotatef(moonAroundEarth, 0.0, 1.0, 0.0);glTranslatef(MoonOrbitRa

10、dius, 0.0, 0.0);glRotatef(-moonAroundEarth, 0.0, 1.0, 0.0);/月球自转 glRotatef(moonItsSelf, 0.0, 1.0, 0.0);/绘制月球glColor3f(0.8, 0.8, 0.0);glBindTexture(GL_TEXTURE_2D, moon_texture);gluSphere(g_quadratic_moon, MoonSize, 32, 32);glPopMatrix();glPopMatrix();glDisable(GL_TEXTURE_2D);void Init(void)glEnable(G

11、L_DEPTH_TEST);glClearColor(0.0, 0.0, 0.0, 0.0);glLoadIdentity();几何曲面的产生sun_texture = LoadGLTexture(sunmap.bmp);g_quadratic_sun = gluNewQuadric();gluQuadricNormals(g_quadratic_sun, GLU_SMOOTH); earth_texture = LoadGLTexture(earthmap1k.bmp);g_quadratic_earth = gluNewQuadric();gluQuadricNormals(g_quadr

12、atic_earth, GLU_SMOOTH);moon_texture = LoadGLTexture(moonmap4k.bmp);g_quadratic_moon = gluNewQuadric();gluQuadricNormals(g_quadratic_moon, GLU_SMOOTH);glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);glEnable(GL_TEXTURE_GEN_S);glEnable(GL_TEXTUR

13、E_GEN_T);glMatrixMode(GL_MODELVIEW);glLoadIdentity();void Display(void)glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);glLoadIdentity();RenderScene();glFlush();glutSwapBuffers();void Reshape(int x, int y)if (y = 0) return;glMatrixMode(GL_PROJECTION);glLoadIdentity();gluPerspective(40.0, (GLdouble)x / (GLdouble)y, 0.5, 20.0);glMatrixMode(GL_MODELVIEW);glViewport(0, 0, x, y);Display();void Idle(void)day += 4;year += 0.5;moonItsSelf += 10;moonAroundEarth += 0.4;Display();int main(int argc, char* argv)glu