1、電子科技大學信息與軟件工程學院三維圖形程序設計綜合實驗標準實驗報告（實驗）課程名稱三維圖形程序設計電子科技大學教務處制表實驗目的按比例大小繪制太陽系（太陽、地球、月亮）自動紋理映射地球以及月亮的自轉地球以及月亮的公轉#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;/月亮繞地球的速度GLfloat moonItsSelf = 0.0;/月球自轉的速度GLfloat EarthOrbitRadius = 1.0; /地球軌道半徑GLfloat MoonOrbitRadius = 0.3;/月亮軌道半徑？#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 )讀取BMP類型的圖形文件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 /加載綁定紋理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);繪制太陽glColor3f(1.0, 1.0, 0.0);glBindTexture(GL_TEXTURE_2D, sun_texture); gluSphere(g_quadratic_sun, SunSize, 32, 32);glPushMatrix();地球公轉glRotatef(year, 0.0, 1.0, 0.0);glTranslatef(EarthOrbitRadius, 0.0,

9、 0.0);glRotatef(-year, 0.0, 1.0, 0.0);glPushMatrix();地球自轉 glRotatef(day, 0.25, 1.0, 0.0);繪制地球glColor3f(0.0, 0.0, 1.0);glBindTexture(GL_TEXTURE_2D, earth_texture);/綁定紋理 gluSphere(g_quadratic_earth, EarthSize, 32, 32);glPopMatrix();月球公轉glRotatef(moonAroundEarth, 0.0, 1.0, 0.0);glTranslatef(MoonOrbitRa

10、dius, 0.0, 0.0);glRotatef(-moonAroundEarth, 0.0, 1.0, 0.0);/月球自轉 glRotatef(moonItsSelf, 0.0, 1.0, 0.0);/繪制月球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();幾何曲面的產生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