天竺茶壺電圖week 08

 

上週複習

執行結果

利用天竺鼠車車當作背景 將茶壺上色

-----------------------------------------------------------------------------------------------------------------------------

第1部份

背景

程式碼

#include <opencv/highgui.h> ///使用 OpenCV 2.1 比較簡單, 只要用 High GUI 即可 #include <opencv/cv.h>

#include <GL/glut.h> GLuint id1, id2; ///TODO:增加2個 貼圖ID int myTexture(char * filename) { IplImage * img = cvLoadImage(filename); ///OpenCV讀圖 cvCvtColor(img,img, CV_BGR2RGB); ///OpenCV轉色彩 (需要cv.h) glEnable(GL_TEXTURE_2D); ///1. 開啟貼圖功能 GLuint id; ///準備一個 unsigned int 整數, 叫 貼圖ID glGenTextures(1, &id); /// 產生Generate 貼圖ID glBindTexture(GL_TEXTURE_2D, id); ///綁定bind 貼圖ID glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); /// 貼圖參數, 超過包裝的範圖T, 就重覆貼圖 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); /// 貼圖參數, 超過包裝的範圖S, 就重覆貼圖 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); /// 貼圖參數, 放大時的內插, 用最近點 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); /// 貼圖參數, 縮小時的內插, 用最近點 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData); return id; } void display() { glClear(GL_COLOR_BUFFER_BIT| GL_DEPTH_BUFFER_BIT);///清空 glBindTexture(GL_TEXTURE_2D,id1); glutSolidTeapot(0.3); glBindTexture(GL_TEXTURE_2D,id2); glBegin(GL_POLYGON); glTexCoord2f(0,1);glVertex2f(-1,-1); glTexCoord2f(1,1);glVertex2f(1,-1); glTexCoord2f(1,0);glVertex2f(1,1); glTexCoord2f(0,0);glVertex2f(-1,1); glEnd(); glutSwapBuffers(); } int main(int argc, char *argv[])///main()函式 { glutInit(&argc, argv);///(1)Init初始化GLUT glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);///(2)Init初始化 Display 的功能 glutCreateWindow("08160075 李華燿");///(3)建立GLUT視窗 glutDisplayFunc(display);///(4)準備display()函式 id1=myTexture("bear.jpg"); id2=myTexture("tree.jpg"); glEnable(GL_DEPTH_TEST); glutMainLoop();///(5)主要程式 }

執行結果

執行結果

-----------------------------------------------------------------------------------------------------------------------------

第2部份

將茶壺打光

加入程式

程式碼

#include <opencv/highgui.h> ///使用 OpenCV 2.1 比較簡單, 只要用 High GUI 即可 #include <opencv/cv.h> #include <GL/glut.h> GLuint id1, id2; ///TODO:增加2個 貼圖ID int myTexture(char * filename) { IplImage * img = cvLoadImage(filename); ///OpenCV讀圖 cvCvtColor(img,img, CV_BGR2RGB); ///OpenCV轉色彩 (需要cv.h) glEnable(GL_TEXTURE_2D); ///1. 開啟貼圖功能 GLuint id; ///準備一個 unsigned int 整數, 叫 貼圖ID glGenTextures(1, &id); /// 產生Generate 貼圖ID glBindTexture(GL_TEXTURE_2D, id); ///綁定bind 貼圖ID glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); /// 貼圖參數, 超過包裝的範圖T, 就重覆貼圖 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); /// 貼圖參數, 超過包裝的範圖S, 就重覆貼圖 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); /// 貼圖參數, 放大時的內插, 用最近點 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); /// 貼圖參數, 縮小時的內插, 用最近點 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData); return id; } void display() { glClear(GL_COLOR_BUFFER_BIT| GL_DEPTH_BUFFER_BIT);///清空 glBindTexture(GL_TEXTURE_2D,id1); glutSolidTeapot(0.3); glBindTexture(GL_TEXTURE_2D,id2); glBegin(GL_POLYGON); glTexCoord2f(0,1);glVertex2f(-1,-1); glTexCoord2f(1,1);glVertex2f(1,-1); glTexCoord2f(1,0);glVertex2f(1,1); glTexCoord2f(0,0);glVertex2f(-1,1); glEnd(); glutSwapBuffers(); } const GLfloat light_ambient[] = { 0.0f, 0.0f, 0.0f, 1.0f }; const GLfloat light_diffuse[] = { 1.0f, 1.0f, 1.0f, 1.0f }; const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f }; const GLfloat light_position[] = { 2.0f, 5.0f, -5.0f, 0.0f }; const GLfloat mat_ambient[] = { 0.7f, 0.7f, 0.7f, 1.0f }; const GLfloat mat_diffuse[] = { 0.8f, 0.8f, 0.8f, 1.0f }; const GLfloat mat_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f }; const GLfloat high_shininess[] = { 100.0f }; int main(int argc, char *argv[])///main()函式 { glutInit(&argc, argv);///(1)Init初始化GLUT glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);///(2)Init初始化 Display 的功能 glutCreateWindow("08160075 李華燿");///(3)建立GLUT視窗 glutDisplayFunc(display);///(4)準備display()函式 id1=myTexture("bear.jpg"); id2=myTexture("tree.jpg"); glEnable(GL_DEPTH_TEST); glEnable(GL_LIGHT0); glEnable(GL_NORMALIZE); glEnable(GL_COLOR_MATERIAL); glEnable(GL_LIGHTING); glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient); glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse); glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular); glLightfv(GL_LIGHT0, GL_POSITION, light_position); glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient); glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse); glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular); glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess); glutMainLoop();///(5)主要程式 }

執行結果