電腦圖學 Week13

  #Week13

# Week13

1. week13-1_glm_gundam_keyboard_angleID_mouse_motion_angle
2. freeglut 安裝
3. OpenCV 2.1 安裝
4. 重開 CodeBlocks,設定 Compiler-Setting 的3個設定
5. C:\OpenCV2.1\include
6. C:\OpenCV2.1\lib
7. cv210 cxcore210 highgui210
8. 再把上週的
9. week12-3_glm_gundam_keyboard_angleID_mouse_motion_angle 拿來用
10. 
    
11. 
    
12. 程式碼:
13. #include <opencv/highgui.h> ///使用 OpenCV 2.1 比較簡單, 只要用 High GUI 即可
1. #include <opencv/cv.h>
2. #include <GL/glut.h>
3. #include <GL/glut.h>
4. int myTexture(char * filename)
5. {
6. IplImage * img = cvLoadImage(filename); ///OpenCV讀圖
7. cvCvtColor(img,img, CV_BGR2RGB); ///OpenCV轉色彩 (需要cv.h)
8. glEnable(GL_TEXTURE_2D); ///1. 開啟貼圖功能
9. GLuint id; ///準備一個 unsigned int 整數, 叫 貼圖ID
10. glGenTextures(1, &id); /// 產生Generate 貼圖ID
11. glBindTexture(GL_TEXTURE_2D, id); ///綁定bind 貼圖ID
12. 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
13. 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
14. glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); /// 貼圖參數, 放大時的內插, 用最近點
15. glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); /// 貼圖參數, 縮小時的內插, 用最近點
16. glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);
17. return id;
18. }
19. #include <GL/glut.h>
20. #include "glm.h"
21. GLMmodel * pmodel = NULL;
22. GLMmodel * handA = NULL;
23. GLMmodel * handB = NULL;
24. GLMmodel * upperA = NULL;
25. GLMmodel * lowerA = NULL;
26. void drawUpperA(void)
27. {
28. if (!upperA) {
29. upperA = glmReadOBJ("data/upperA.obj");
30. if (!upperA) exit(0);
31. glmUnitize(upperA);
32. glmFacetNormals(upperA);
33. glmVertexNormals(upperA, 90.0);
34. }
36. glmDraw(upperA, GLM_SMOOTH | GLM_TEXTURE);
37. }
38. void drawLowerA(void)
39. {
40. if (!lowerA) {
41. lowerA= glmReadOBJ("data/lowerA.obj");
42. if (!lowerA) exit(0);
43. glmUnitize(lowerA);
44. glmFacetNormals(lowerA);
45. glmVertexNormals(lowerA, 90.0);
46. }
48. glmDraw(lowerA, GLM_SMOOTH | GLM_TEXTURE);
49. }
50. void myBody()
51. {
52. glPushMatrix();
53. glColor3f(1,0,0);
54. glutSolidCube(0.6);///myBody()
55. glPopMatrix();
56. }
57. ///float angle = 0,da=1; ///加這行, 讓它轉動
58. float angle[20]={};
59. int angleID=0;
60. int oldX=0,oldY=0;
61. void motion(int x, int y){
62. angle[angleID]+=y-oldY;
63. oldX=x;
64. oldY=y;
65. glutPostRedisplay();
66. }
67. void mouse(int button,int state,int x, int y){
68. oldX=x;
69. oldY=y;
70. }
71. void keyboard(unsigned char key,int x,int y){
72. if(key=='0')angleID=0;
73. if(key=='1')angleID=1;
74. if(key=='2')angleID=2;
75. if(key=='3')angleID=3;
76. }
77. void display()
78. {
79. ///angle+=da;
80. ///if(angle>90)da=-1;
81. ///if(angle<0)da=+1;
82. glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
83. glDisable(GL_TEXTURE_2D);
84. ///myBody();
85. glutSolidSphere(0.1,30,30);
86. glEnable(GL_TEXTURE_2D);
87. glColor3f(1,1,1);
89. glPushMatrix();
90. ///glTranslatef();
91. glRotatef(angle[0],0,0,1);
92. glTranslatef(0,-0.07,0);
93. drawUpperA();
94. glPushMatrix(); ///加這行, 讓它轉動
95. glTranslatef(-0.02,-0.09,0);
96. glRotatef(angle[1],1,0,0);
97. glTranslatef(0,-0.21,0);
98. drawLowerA();
99. glPopMatrix(); ///加這行, 讓它轉動
100. glPopMatrix();
101. glutSwapBuffers();
102. }
104. const GLfloat light_ambient[] = { 0.0f, 0.0f, 0.0f, 1.0f };
105. const GLfloat light_diffuse[] = { 1.0f, 1.0f, 1.0f, 1.0f };
106. const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
107. const GLfloat light_position[] = { 2.0f, 5.0f, -5.0f, 0.0f };///加這行, 讓它轉動
109. const GLfloat mat_ambient[] = { 0.7f, 0.7f, 0.7f, 1.0f };
110. const GLfloat mat_diffuse[] = { 0.8f, 0.8f, 0.8f, 1.0f };
111. const GLfloat mat_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
112. const GLfloat high_shininess[] = { 100.0f };
114. int main(int argc, char*argv[])
115. {
116. glutInit(&argc, argv);
117. glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
118. glutCreateWindow("week13");
119. glutDisplayFunc(display);
120. glutIdleFunc(display); ///加這行, 讓它轉動
121. glutMotionFunc(motion);
122. glutMouseFunc(mouse);
123. glutKeyboardFunc(keyboard);
125. myTexture("data/Diffuse.jpg");
127. glEnable(GL_DEPTH_TEST);
128. glDepthFunc(GL_LESS);
130. glEnable(GL_LIGHT0);
131. glEnable(GL_NORMALIZE);
132. glEnable(GL_COLOR_MATERIAL);
133. glEnable(GL_LIGHTING);
135. glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient);
136. glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);
137. glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);
138. glLightfv(GL_LIGHT0, GL_POSITION, light_position);
140. glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient);
141. glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);
142. glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
143. glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess);
145. glutMainLoop();
     
     
     
14. week13-2_FILE_fopen_fprint_fscanf
15. 把 week13-1 複製整個目錄,改目錄名、改.cbp名、Notepad++改裡面的 Title
16. 在 week13-2裡,要加 FILE 指標
17. #include <stdio.h>

18. FILE * fin = NULL;

    FILE * fout = NULL;

19. 在motion()裡,要加一段程式

cpp

void motion(int x, int y) {

angle [angleID] += y - oldy;

oldX = x;

oldY =y;

glutPostRedisplay();

if(fout==NULL) fout = fopen("angle.txt", "w+");

for(int i=0; i<20; i++){

    printf("%.lf", angle[i]);

    fprintf(fout, "%.lf ", angle[i]);

    }


    printf("\n");

    fprintf(fout, "\n");

}

20. 你執行程式時,用mouse motion一邊改變角度,一邊大量產生角度值小黑關掉後,可在目錄裡,看到angle.txt裡面就是剛剛印的一堆數值

21. 小心, angle.txt 裡面要有空格,不然就錯了。printf()及 fprintf()要加"%.1f"

22. 現在,要讀
23. 程式碼:
24. 1. 
       
       
    3. #include <opencv/highgui.h> ///使用 OpenCV 2.1 比較簡單, 只要用 High GUI 即可
    4. #include <opencv/cv.h>
    5. #include <GL/glut.h>
    6. int myTexture(char * filename)
    7. {
    8.     IplImage * img = cvLoadImage(filename); ///OpenCV讀圖
    9.     cvCvtColor(img,img, CV_BGR2RGB); ///OpenCV轉色彩 (需要cv.h)
    10.     glEnable(GL_TEXTURE_2D); ///1. 開啟貼圖功能
    11.     GLuint id; ///準備一個 unsigned int 整數, 叫 貼圖ID
    12.     glGenTextures(1, &id); /// 產生Generate 貼圖ID
    13.     glBindTexture(GL_TEXTURE_2D, id); ///綁定bind 貼圖ID
    14.     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
    15.     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
    16.     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); /// 貼圖參數, 放大時的內插, 用最近點
    17.     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); /// 貼圖參數, 縮小時的內插, 用最近點
    18.     glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);
    19.     return id;
    20. }
    21. #include <GL/glut.h>
    22. #include "glm.h"
    23. GLMmodel * pmodel = NULL;
    24. GLMmodel * handA = NULL;
    25. GLMmodel * handB = NULL;
    26. GLMmodel * upperA = NULL;
    27. GLMmodel * lowerA = NULL;
    28. GLMmodel * body = NULL;
    29. void drawBody(void)
    30. {
    31.     if (!body) {
    32. body  = glmReadOBJ("data/body.obj");
    33. if (!body) exit(0);
    34. glmUnitize(body);
    35. glmFacetNormals(body);
    36. glmVertexNormals(body, 90.0);
    37.     }
    38. 
        
    39.     glmDraw(body, GLM_SMOOTH | GLM_TEXTURE);
    40. }
    41. void drawUpperA(void)
    42. {
    43.     if (!upperA) {
    44. upperA  = glmReadOBJ("data/upperA.obj");
    45. if (!upperA) exit(0);
    46. glmUnitize(upperA);
    47. glmFacetNormals(upperA);
    48. glmVertexNormals(upperA, 90.0);
    49.     }
    50. 
        
    51.     glmDraw(upperA, GLM_SMOOTH | GLM_TEXTURE);
    52. }
    53. void drawLowerA(void)
    54. {
    55.     if (!lowerA) {
    56. lowerA= glmReadOBJ("data/lowerA.obj");
    57. if (!lowerA) exit(0);
    58. glmUnitize(lowerA);
    59. glmFacetNormals(lowerA);
    60. glmVertexNormals(lowerA, 90.0);
    61.     }
    62. 
        
    63.     glmDraw(lowerA, GLM_SMOOTH | GLM_TEXTURE);
    64. }
    65. void myBody()
    66. {
    67.     glPushMatrix();
    68.         glColor3f(1,0,0);
    69.         glutSolidCube(0.6);///myBody()
    70. glPopMatrix();
    71. }
    72. ///float angle = 0,da=1; ///加這行, 讓它轉動
    73. float angle[20]={};
    74. int angleID=0;
    75. int oldX=0,oldY=0;
    76. #include <stdio.h>
    77. FILE * fin = NULL;
    78. FILE * fout = NULL;
    79. void motion(int x, int y){
    80.     angle[angleID]+=y-oldY;
    81.     oldX=x;
    82.     oldY=y;
    83.     glutPostRedisplay();
    84.     if(fout==NULL) fout = fopen("angle.txt", "w+");
    85.     for(int i=0; i<20; i++){
    86.         printf("%.1f", angle[i]);
    87.         fprintf(fout, "%.1f ", angle[i]);
    88.     }
    89.     printf("\n");
    90.     fprintf(fout, "\n");
    91. }
    92. void mouse(int button,int state,int x, int y){
    93.     oldX=x;
    94.     oldY=y;
    95. }
    96. 
        
    97. void keyboard(unsigned char key,int x,int y){
    98.     if(key=='r'){
    99.         if(fin==NULL) fin = fopen("angle.txt", "r");
    100.         for(int i=0; i<20; i++){
    101.             fscanf(fin,"%f", &angle[i]);
    102.         }
    103.         glutPostRedisplay();
    104.     }
    105.     if(key=='0')angleID=0;
    106.     if(key=='1')angleID=1;
    107.     if(key=='2')angleID=2;
    108.     if(key=='3')angleID=3;
    109. }
    110. void display()
    111. {
    112.     ///angle+=da;
    113.     ///if(angle>90)da=-1;
    114.     ///if(angle<0)da=+1;
    115.     glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
    116.     glDisable(GL_TEXTURE_2D);
    117.     ///glutSolidSphere(0.1,30,30);
    118.     glEnable(GL_TEXTURE_2D);
    119.     glColor3f(1,1,1);
    120. 
         
    121.     glPushMatrix();
    122.         glRotatef(angle[0],0,1,0);
    123.         drawBody();
    124.         glEnable(GL_TEXTURE_2D);
    125.         glColor3f(1,1,1);
    126. 
         
    127.     glPushMatrix();
    128.         glTranslatef(-0.1,0,0);
    129.         glRotatef(angle[1],0,0,1);
    130.         glRotatef(angle[2],1,0,0);
    131.         glTranslatef(0,-0.07,0);
    132.         drawUpperA();
    133.         glPushMatrix(); ///加這行, 讓它轉動
    134.             glTranslatef(-0.02,-0.09,0);
    135.             glRotatef(angle[1],1,0,0);
    136.             glTranslatef(0,-0.21,0);
    137.             drawLowerA();
    138.         glPopMatrix(); ///加這行, 讓它轉動
    139.     glPopMatrix();
    140.     glutSwapBuffers();
    141. }
    142. 
         
    143. const GLfloat light_ambient[]  = { 0.0f, 0.0f, 0.0f, 1.0f };
    144. const GLfloat light_diffuse[]  = { 1.0f, 1.0f, 1.0f, 1.0f };
    145. const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
    146. const GLfloat light_position[] = { 2.0f, 5.0f, -5.0f, 0.0f };///加這行, 讓它轉動
    147. 
         
    148. const GLfloat mat_ambient[]    = { 0.7f, 0.7f, 0.7f, 1.0f };
    149. const GLfloat mat_diffuse[]    = { 0.8f, 0.8f, 0.8f, 1.0f };
    150. const GLfloat mat_specular[]   = { 1.0f, 1.0f, 1.0f, 1.0f };
    151. const GLfloat high_shininess[] = { 100.0f };
    152. 
         
    153. int main(int argc, char*argv[])
    154. {
    155.     glutInit(&argc, argv);
    156.     glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
    157.     glutCreateWindow("week13");
    158.     glutDisplayFunc(display);
    159.     glutIdleFunc(display); ///加這行, 讓它轉動
    160.     glutMotionFunc(motion);
    161.     glutMouseFunc(mouse);
    162.     glutKeyboardFunc(keyboard);
    163. 
         
    164.     myTexture("data/Diffuse.jpg");
    165. 
         
    166.     glEnable(GL_DEPTH_TEST);
    167.     glDepthFunc(GL_LESS);
    168. 
         
    169.     glEnable(GL_LIGHT0);
    170.     glEnable(GL_NORMALIZE);
    171.     glEnable(GL_COLOR_MATERIAL);
    172.     glEnable(GL_LIGHTING);
    173. 
         
    174.     glLightfv(GL_LIGHT0, GL_AMBIENT,  light_ambient);
    175.     glLightfv(GL_LIGHT0, GL_DIFFUSE,  light_diffuse);
    176.     glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);
    177.     glLightfv(GL_LIGHT0, GL_POSITION, light_position);
    178. 
         
    179.     glMaterialfv(GL_FRONT, GL_AMBIENT,   mat_ambient);
    180.     glMaterialfv(GL_FRONT, GL_DIFFUSE,   mat_diffuse);
    181.     glMaterialfv(GL_FRONT, GL_SPECULAR,  mat_specular);
    182.     glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess);
    183. 
         
    184.     glutMainLoop();
    185. }