Week15 +0筆記

 



GLUT 投影（Projection）、矩陣 的3D模型打光：

#include <GL/glut.h> #include "glm.h" ///for glmReadOBJ(), glmDraw(), glmUnitized().... GLMmodel * pmodel=NULL;///NOW void drawmodel(void) { if (!pmodel) { pmodel = glmReadOBJ("data/al.obj"); if (!pmodel) exit(0); glmUnitize(pmodel); glmFacetNormals(pmodel); glmVertexNormals(pmodel, 90.0); } glmDraw(pmodel, GLM_SMOOTH | GLM_MATERIAL); } void display(void) { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); drawmodel(); glutSwapBuffers(); } int main(int argc, char**argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH); glutInitWindowSize(500,500); glutCreateWindow("week15"); glutDisplayFunc(display); glClearColor(205/255.0,92/255.0,92/255.0,1); ///light GLfloat light_pos[] = { 0.0, 0.0, -1.0, 0.0 };///position glEnable(GL_DEPTH_TEST);///depth glEnable(GL_LIGHT0);///open light glEnable(GL_LIGHTING);///open light glLightfv(GL_LIGHT0, GL_POSITION, light_pos);///position glutMainLoop(); }

GLUT 投影（Projection）、矩陣 的3D模型打光加上 timer 做位置移動、轉動：

一開始有破圖：

#include <GL/glut.h> #include "glm.h" ///for glmReadOBJ(), glmDraw(), glmUnitized().... GLMmodel * pmodel=NULL;///NOW void drawmodel(void) { if (!pmodel) { pmodel = glmReadOBJ("data/al.obj"); if (!pmodel) exit(0); glmUnitize(pmodel); glmFacetNormals(pmodel); glmVertexNormals(pmodel, 90.0); } glmDraw(pmodel, GLM_SMOOTH | GLM_MATERIAL); } void display(void) { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); drawmodel(); glutSwapBuffers(); } #include <math.h> float eyeX=1, eyeY=0, eyeZ=0; void timer(int t) { ///camera glutTimerFunc(33, timer, t+1); float angle=t/180.0*3.1415926; eyeX=cos(angle); eyeZ=sin(angle); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt(eyeX, eyeY, eyeZ, 0.0, 0.8, 0.0, 0, 1, 0); glutPostRedisplay(); } int main(int argc, char**argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH); glutInitWindowSize(500,500); glutCreateWindow("week15"); glutDisplayFunc(display); glutTimerFunc(33, timer, 0);///timer glClearColor(205/255.0,92/255.0,92/255.0,1); ///light GLfloat light_pos[] = { 0.0, 0.0, -1.0, 0.0 };///position glEnable(GL_DEPTH_TEST);///depth glEnable(GL_LIGHT0);///open light glEnable(GL_LIGHTING);///open light glLightfv(GL_LIGHT0, GL_POSITION, light_pos);///position glutMainLoop(); }

改善破圖：

#include <GL/glut.h> #include "glm.h" ///for glmReadOBJ(), glmDraw(), glmUnitized().... GLMmodel * pmodel=NULL;///NOW void drawmodel(void) { if (!pmodel) { pmodel = glmReadOBJ("data/al.obj"); if (!pmodel) exit(0); glmUnitize(pmodel); glmFacetNormals(pmodel); glmVertexNormals(pmodel, 90.0); } glmDraw(pmodel, GLM_SMOOTH | GLM_MATERIAL); } void display(void) { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); drawmodel(); glutSwapBuffers(); } #include <math.h> float eyeX=1, eyeY=0, eyeZ=0; void timer(int t) { ///camera glutTimerFunc(33, timer, t+1); float angle=t/180.0*3.1415926; eyeX=cos(angle); eyeZ=sin(angle); glMatrixMode(GL_PROJECTION);///NOW4 glLoadIdentity();///NOW4 glOrtho(-1,+1, -1,+1, -10,+10);///NOW4 可以看到範圍比較大的投影法 glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt(eyeX, eyeY, eyeZ, 0.0, 0.6, 0.0, 0, 1, 0); glutPostRedisplay(); } int main(int argc, char**argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH); glutInitWindowSize(500,500); glutCreateWindow("week15"); glutDisplayFunc(display); glutTimerFunc(33, timer, 0);///timer glClearColor(205/255.0,92/255.0,92/255.0,1); ///light GLfloat light_pos[] = { 0.0, 0.0, 1.0, 0.0 };///position glEnable(GL_DEPTH_TEST);///depth glEnable(GL_LIGHT0);///open light glEnable(GL_LIGHTING);///open light glLightfv(GL_LIGHT0, GL_POSITION, light_pos);///position glutMainLoop(); }

調整距離：

#include <GL/glut.h> #include "glm.h" ///for glmReadOBJ(), glmDraw(), glmUnitized().... GLMmodel * pmodel=NULL;///NOW void drawmodel(void) { if (!pmodel) { pmodel = glmReadOBJ("data/al.obj"); if (!pmodel) exit(0); glmUnitize(pmodel); glmFacetNormals(pmodel); glmVertexNormals(pmodel, 90.0); } glmDraw(pmodel, GLM_SMOOTH | GLM_MATERIAL); } void display(void) { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); drawmodel(); glutSwapBuffers(); } #include <math.h> float eyeX=1, eyeY=0, eyeZ=0; void timer(int t) { ///camera glutTimerFunc(33, timer, t+1); float angle=t/180.0*3.1415926; eyeX=cos(angle); eyeZ=sin(angle); glMatrixMode(GL_PROJECTION);///NOW4 glLoadIdentity();///NOW4 gluPerspective(60, 1, 0.001, 1000); //glOrtho(-1,+1, -1,+1, -15,+15);///NOW4 可以看到範圍比較大的投影法 glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt(eyeX, eyeY, eyeZ, 0.0, 0.5, 0.0, 0, 1, 0); glutPostRedisplay(); } int main(int argc, char**argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH); glutInitWindowSize(500,500); glutCreateWindow("week15"); glutDisplayFunc(display); glutTimerFunc(33, timer, 0);///timer glClearColor(205/255.0,92/255.0,92/255.0,1); ///light GLfloat light_pos[] = { 0.0, 0.0, 1.0, 0.0 };///position glEnable(GL_DEPTH_TEST);///depth glEnable(GL_LIGHT0);///open light glEnable(GL_LIGHTING);///open light glLightfv(GL_LIGHT0, GL_POSITION, light_pos);///position glutMainLoop(); }

Week14 +0筆記

 



利用CodeBlocks做出補間動畫〈alpha公式〉：
#include <GL/glut.h> #include <mmsystem.h>///聲音 #include <stdio.h> float angle=0; float nowX=0; void display() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glPushMatrix(); //glRotatef(angle, 0, 0, 1); glTranslatef(nowX, 0, 0); glutSolidTeapot( 0.3 ); glPopMatrix(); glutSwapBuffers(); } void timer(int t) { glutTimerFunc(30, timer, t+1);///timer(重複播) printf("這是第%d次\n", t); float alpha = (t%30)/30.0; nowX=alpha*1.0 + (1-alpha)*-1.0; PlaySoundA("thwap.wav", NULL, SND_ASYNC);///不同步 //angle = t; glutPostRedisplay();///更新畫面 } int main(int argc, char**argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH); glutInitWindowSize(500, 500); glutCreateWindow("timer"); glutDisplayFunc(display); glutTimerFunc(1000, timer, 0);///timer glutMainLoop(); }

Week13 +0筆記

 



（1）使用Code Blocks中的Console Project開檔案、寫檔案：

（2）使用Code Blocks中的GLUT做機器人：

（3）使用Code Blocks中的GLUT做機器人：

+0筆記 Week12

 



（1）使用Code Blocks中的Console Project播放聲音
          Download聲音檔：http://billor.chsh.chc.edu.tw/sound/rain.htm

泡泡聲：
///#include <iostream> ///using namespace std; #include <windows.h> ///(0)MultiMedia system中的宣告需要 #include <mmsystem.h> ///(1)MultiMedia system int main() { PlaySoundA("C:\\Users\\user\\Downloads\\bubbs.wav",NULL,SND_SYNC); ///(2) ///cout << "Hello world!" << endl; return 0; }

（2）使用Code Blocks中的GLUT Project播放聲音

打雷聲：
/* * GLUT Shapes Demo * * Written by Nigel Stewart November 2003 * * This program is test harness for the sphere, cone * and torus shapes in GLUT. * * Spinning wireframe and smooth shaded shapes are * displayed until the ESC or q key is pressed. The * number of geometry stacks and slices can be adjusted * using the + and - keys. */ #ifdef __APPLE__ #include <GLUT/glut.h> #else #include <GL/glut.h> #endif #include <stdlib.h> static int slices = 16; static int stacks = 16; /* GLUT callback Handlers */ static void resize(int width, int height) { const float ar = (float) width / (float) height; glViewport(0, 0, width, height); glMatrixMode(GL_PROJECTION); glLoadIdentity(); glFrustum(-ar, ar, -1.0, 1.0, 2.0, 100.0); glMatrixMode(GL_MODELVIEW); glLoadIdentity() ; } static void display(void) { const double t = glutGet(GLUT_ELAPSED_TIME) / 1000.0; const double a = t*90.0; glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glColor3d(1,0,0); glPushMatrix(); glTranslated(-2.4,1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutSolidSphere(1,slices,stacks); glPopMatrix(); glPushMatrix(); glTranslated(0,1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutSolidCone(1,1,slices,stacks); glPopMatrix(); glPushMatrix(); glTranslated(2.4,1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutSolidTorus(0.2,0.8,slices,stacks); glPopMatrix(); glPushMatrix(); glTranslated(-2.4,-1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutWireSphere(1,slices,stacks); glPopMatrix(); glPushMatrix(); glTranslated(0,-1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutWireCone(1,1,slices,stacks); glPopMatrix(); glPushMatrix(); glTranslated(2.4,-1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutWireTorus(0.2,0.8,slices,stacks); glPopMatrix(); glutSwapBuffers(); } static void key(unsigned char key, int x, int y) { switch (key) { case 27 : case 'q': exit(0); break; case '+': slices++; stacks++; break; case '-': if (slices>3 && stacks>3) { slices--; stacks--; } break; } glutPostRedisplay(); } static void idle(void) { glutPostRedisplay(); } 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 }; /* Program entry point */ #include <stdio.h> ///(3)printf #include <mmsystem.h> ///(1)MultiMedia system int main(int argc, char *argv[]) { PlaySoundA("C:\\Users\\user\\Downloads\\thund.wav",NULL,SND_ASYNC); ///(2) printf("在背景持續播放聲音\n"); glutInit(&argc, argv); glutInitWindowSize(640,480); glutInitWindowPosition(10,10); glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH); glutCreateWindow("GLUT Shapes"); glutReshapeFunc(resize); glutDisplayFunc(display); glutKeyboardFunc(key); glutIdleFunc(idle); glClearColor(1,1,1,1); glEnable(GL_CULL_FACE); glCullFace(GL_BACK); glEnable(GL_DEPTH_TEST); glDepthFunc(GL_LESS); 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(); return EXIT_SUCCESS; }

播放mp3：
1. 下載mp3函式庫
2. 將函式庫丟入Project
3. #include "CMP3_MCI.h" ///(1)載入mp3函式庫
4. CMP3_MCI myMP3; ///(2)宣告
5. myMP3.Load("C:\\Users\\user\\Downloads\\music\\While_My_Guitar_Gently_Weeps.mp3");
    ///載入mp3檔
6. myMP3.Play(); ///mp3播放

While My Guitar Gently Weeps：
/* * GLUT Shapes Demo * * Written by Nigel Stewart November 2003 * * This program is test harness for the sphere, cone * and torus shapes in GLUT. * * Spinning wireframe and smooth shaded shapes are * displayed until the ESC or q key is pressed. The * number of geometry stacks and slices can be adjusted * using the + and - keys. */ #ifdef __APPLE__ #include <GLUT/glut.h> #else #include <GL/glut.h> #endif #include <stdlib.h> static int slices = 16; static int stacks = 16; /* GLUT callback Handlers */ static void resize(int width, int height) { const float ar = (float) width / (float) height; glViewport(0, 0, width, height); glMatrixMode(GL_PROJECTION); glLoadIdentity(); glFrustum(-ar, ar, -1.0, 1.0, 2.0, 100.0); glMatrixMode(GL_MODELVIEW); glLoadIdentity() ; } static void display(void) { const double t = glutGet(GLUT_ELAPSED_TIME) / 1000.0; const double a = t*90.0; glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glColor3d(1,0,0); glPushMatrix(); glTranslated(-2.4,1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutSolidSphere(1,slices,stacks); glPopMatrix(); glPushMatrix(); glTranslated(0,1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutSolidCone(1,1,slices,stacks); glPopMatrix(); glPushMatrix(); glTranslated(2.4,1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutSolidTorus(0.2,0.8,slices,stacks); glPopMatrix(); glPushMatrix(); glTranslated(-2.4,-1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutWireSphere(1,slices,stacks); glPopMatrix(); glPushMatrix(); glTranslated(0,-1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutWireCone(1,1,slices,stacks); glPopMatrix(); glPushMatrix(); glTranslated(2.4,-1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutWireTorus(0.2,0.8,slices,stacks); glPopMatrix(); glutSwapBuffers(); } #include <mmsystem.h> ///(1)MultiMedia system static void key(unsigned char key, int x, int y) { if(key=='1') PlaySoundA("C:\\Users\\user\\Downloads\\do.wav",NULL,SND_ASYNC); if(key=='2') PlaySoundA("C:\\Users\\user\\Downloads\\re.wav",NULL,SND_ASYNC); if(key=='3') PlaySoundA("C:\\Users\\user\\Downloads\\mi.wav",NULL,SND_ASYNC); if(key=='4') PlaySoundA("C:\\Users\\user\\Downloads\\fa.wav",NULL,SND_ASYNC); if(key=='5') PlaySoundA("C:\\Users\\user\\Downloads\\so.wav",NULL,SND_ASYNC); switch (key) { case 27 : case 'q': exit(0); break; case '+': slices++; stacks++; break; case '-': if (slices>3 && stacks>3) { slices--; stacks--; } break; } glutPostRedisplay(); } static void idle(void) { glutPostRedisplay(); } 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 }; /* Program entry point */ #include "CMP3_MCI.h" ///(1)載入mp3函式庫 CMP3_MCI myMP3; ///(2)宣告 int main(int argc, char *argv[]) { myMP3.Load("C:\\Users\\user\\Downloads\\music\\While_My_Guitar_Gently_Weeps.mp3"); ///載入mp3檔 myMP3.Play(); ///mp3播放 glutInit(&argc, argv); glutInitWindowSize(640,480); glutInitWindowPosition(10,10); glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH); glutCreateWindow("GLUT Shapes"); glutReshapeFunc(resize); glutDisplayFunc(display); glutKeyboardFunc(key); ///在keyboard函式裡，做出簡單的鋼琴 glutIdleFunc(idle); glClearColor(1,1,1,1); glEnable(GL_CULL_FACE); glCullFace(GL_BACK); glEnable(GL_DEPTH_TEST); glDepthFunc(GL_LESS); 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(); return EXIT_SUCCESS; }

+0筆記 Week11

 



(1) 茶壺加上TRT
#include <GL/glut.h> float angle=0;///NOW void display() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glColor3f(255,255,255);///白色的 glutSolidTeapot( 0.3 );///身體 glPushMatrix();///右邊手臂 glTranslatef(0.3, 0, 0);///(3) 掛在身體的右肩 glRotatef(angle, 0,0,1);///(2) 旋轉 glTranslatef(0.15, 0,0);///(1) 把茶壼柄,移動到畫面的中心,當旋轉軸 glColor3f(1,0,0);///紅色的 glutSolidTeapot( 0.15 );///右手臂 glPopMatrix(); glutSwapBuffers(); angle++;///NOW } int main(int argc, char**argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH ); glutCreateWindow("week11 TRT"); glutIdleFunc(display);///NOW glutDisplayFunc(display); glutMainLoop(); }

(2) 茶壺加上多個TRT
#include <GL/glut.h> float angle=0;///NOW void display() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glColor3f(255,255,255);///白色的 glutSolidTeapot( 0.3 );///身體 glPushMatrix();///右邊手臂 glTranslatef(0.2, 0, 0);///(3) 掛在身體的右肩 glRotatef(angle, 0,0,1);///(2) 旋轉 glTranslatef(0.15, 0,0);///(1) 把茶壼柄,移動到畫面的中心,當旋轉軸 glColor3f(1,0,0);///紅色的 glutSolidTeapot( 0.15 );///右手臂 glPushMatrix();///右邊手肘 glTranslatef(0.2, 0, 0);///(3) 掛在身體的右肘 glRotatef(angle, 0,0,1);///(2) 旋轉 glTranslatef(0.15, 0,0);///(1) 把茶壼柄,移動到畫面的中心,當旋轉軸 glColor3f(1,0,0);///紅色的 glutSolidTeapot( 0.15 );///右手肘 glPopMatrix(); glPopMatrix(); glPushMatrix();///左邊手臂 glTranslatef(-0.2, 0, 0);///(3) 掛在身體的左肩 glRotatef(angle, 0,0,1);///(2) 旋轉 glTranslatef(-0.15, 0,0);///(1) 把茶壼柄,移動到畫面的中心,當旋轉軸 glColor3f(1,0,0);///紅色的 glutSolidTeapot( 0.15 );///左手臂 glPushMatrix();///左邊手肘 glTranslatef(-0.2, 0, 0);///(3) 掛在身體的左肘 glRotatef(angle, 0,0,1);///(2) 旋轉 glTranslatef(-0.15, 0,0);///(1) 把茶壼柄,移動到畫面的中心,當旋轉軸 glColor3f(1,0,0);///紅色的 glutSolidTeapot( 0.15 );///左手肘 glPopMatrix(); glPopMatrix(); glutSwapBuffers(); ///angle++;///NOW } void motion(int x, int y) { angle=x;///用滑鼠控制angle display(); } int main(int argc, char**argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH ); glutCreateWindow("week11 TRT"); glutIdleFunc(display);///NOW glutDisplayFunc(display); glutMotionFunc(motion); glutMainLoop(); }  

(3) 茶壺 angle 改善，和記錄滑鼠按下去時的角度

#include <GL/glut.h> float angle=0;///NOW void display() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glColor3f(255,255,255);///白色的 glutSolidTeapot( 0.3 );///身體 glPushMatrix();///右邊手臂 glTranslatef(0.2, 0, 0);///(3) 掛在身體的右肩 glRotatef(angle, 0,0,1);///(2) 旋轉 glTranslatef(0.15, 0,0);///(1) 把茶壼柄,移動到畫面的中心,當旋轉軸 glColor3f(1,0,0);///紅色的 glutSolidTeapot( 0.15 );///右手臂 glPushMatrix();///右邊手肘 glTranslatef(0.2, 0, 0);///(3) 掛在身體的右肘 glRotatef(angle, 0,0,1);///(2) 旋轉 glTranslatef(0.15, 0,0);///(1) 把茶壼柄,移動到畫面的中心,當旋轉軸 glColor3f(1,0,0);///紅色的 glutSolidTeapot( 0.15 );///右手肘 glPopMatrix(); glPopMatrix(); glPushMatrix();///左邊手臂 glTranslatef(-0.2, 0, 0);///(3) 掛在身體的左肩 glRotatef(-angle, 0,0,1);///(2) 旋轉 glTranslatef(-0.15, 0,0);///(1) 把茶壼柄,移動到畫面的中心,當旋轉軸 glColor3f(1,0,0);///紅色的 glutSolidTeapot( 0.15 );///左手臂 glPushMatrix();///左邊手肘 glTranslatef(-0.2, 0, 0);///(3) 掛在身體的左肘 glRotatef(-angle, 0,0,1);///(2) 旋轉 glTranslatef(-0.15, 0,0);///(1) 把茶壼柄,移動到畫面的中心,當旋轉軸 glColor3f(1,0,0);///紅色的 glutSolidTeapot( 0.15 );///左手肘 glPopMatrix(); glPopMatrix(); glutSwapBuffers(); ///angle++;///NOW } int oldX,oldY; void motion(int x, int y)///用滑鼠控制angle { angle+=(x-oldX); oldX=x; display(); } void mouse(int buttun, int state, int x, int y)///滑鼠按下去時紀錄 { oldX=x; oldY=y; } int main(int argc, char**argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH ); glutCreateWindow("week11 TRT"); glutIdleFunc(display);///NOW glutDisplayFunc(display); glutMotionFunc(motion); glutMouseFunc(mouse); glutMainLoop(); }

(4) 使用4個數字(1,2,3,4)控制4個關節

#include <GL/glut.h> float angle1=0, angle2=0, angle3=0, angle4=0;///NOW ///NOW6 配合鍵盤 int jointID=1;///NOW6 配合鍵盤 void display() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glColor3f(255,255,255);///白色的 glutSolidTeapot( 0.3 );///身體 glPushMatrix();///右邊手臂 glTranslatef(0.2, 0, 0);///(3) 掛在身體的右肩 glRotatef(angle1, 0,0,1);///(2) 旋轉 ///NOW6 配合鍵盤 glTranslatef(0.15, 0,0);///(1) 把茶壼柄,移動到畫面的中心,當旋轉軸 glColor3f(1,0,0);///紅色的 glutSolidTeapot( 0.15 );///右手臂 glPushMatrix();///NOW2 glTranslatef(0.2, 0, 0);///(3) 掛在身體的右肘///NOW2 glRotatef(angle2, 0,0,1);///(2) 旋轉///NOW2 ///NOW6 配合鍵盤 glTranslatef(0.15, 0,0);///(1) 把茶壼柄,移動到畫面的中心,當旋轉軸///NOW2 glColor3f(1,0,0);///紅色的///NOW2 glutSolidTeapot( 0.15 );///右下手臂///NOW2 glPopMatrix();///NOW2 glPopMatrix(); glPushMatrix();///左邊手臂 ///NOW4 複製左半邊 glTranslatef(-0.2, 0, 0);///(3) 掛在身體的左肩 ///NOW4 複製左半邊 glRotatef(-angle3, 0,0,1);///(2) 旋轉 ///NOW4 複製左半邊 ///NOW5 angle變負的 glTranslatef(-0.15, 0,0);///(1) 把茶壼柄,移動到畫面的中心,當旋轉軸 ///NOW4 複製左半邊 glColor3f(1,0,0);///紅色的 ///NOW4 複製左半邊 glutSolidTeapot( 0.15 );///左手臂 ///NOW4 複製左半邊 glPushMatrix();///NOW2 ///NOW4 複製左半邊 glTranslatef(-0.2, 0, 0);///(3) 掛在身體的左肘///NOW2 ///NOW4 複製左半邊 glRotatef(-angle4, 0,0,1);///(2) 旋轉///NOW2 ///NOW4 複製左半邊 ///NOW5 angle變負的 glTranslatef(-0.15, 0,0);///(1) 把茶壼柄,移動到畫面的中心,當旋轉軸///NOW2 ///NOW4 複製左半邊 glColor3f(1,0,0);///紅色的///NOW2 ///NOW4 複製左半邊 glutSolidTeapot( 0.15 );///左下手臂///NOW2 ///NOW4 複製左半邊 glPopMatrix();///NOW2 glPopMatrix(); glutSwapBuffers(); ///angle++;///NOW ///NOW3 } int oldX, oldY;///NOW5 void motion(int x, int y)///NOW3 用滑鼠mouse來控制angle { if(jointID==1) angle1 += (x-oldX);///NOW3 用滑鼠mouse來控制angle ///NOW6 配合鍵盤 if(jointID==2) angle2 += (x-oldX);///NOW3 用滑鼠mouse來控制angle ///NOW6 配合鍵盤 if(jointID==3) angle3 += (x-oldX);///NOW3 用滑鼠mouse來控制angle ///NOW6 配合鍵盤 if(jointID==4) angle4 += (x-oldX);///NOW3 用滑鼠mouse來控制angle ///NOW6 配合鍵盤 oldX=x;///NOW5 display();///NOW3 用滑鼠mouse來控制angle } void mouse(int button, int state, int x, int y)///NOW5 要知道mouse的按鍵狀況 {///NOW5 要知道mouse的按鍵狀況 oldX = x; oldY = y;///NOW5 要知道mouse的按鍵狀況, 按下去時,就記得 oldX } void keyboard(unsigned char key, int x, int y)///NOW6 配合鍵盤 { if(key=='1') jointID=1;///NOW6 配合鍵盤 if(key=='2') jointID=2;///NOW6 配合鍵盤 if(key=='3') jointID=3;///NOW6 配合鍵盤 if(key=='4') jointID=4;///NOW6 配合鍵盤 } int main(int argc, char**argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH ); glutCreateWindow("week11 TRT"); glutIdleFunc(display);///NOW glutDisplayFunc(display); glutMotionFunc(motion);///NOW3 用滑鼠mouse來控制angle glutMouseFunc(mouse);///NOW5 要知道mouse的按鍵狀況 glutKeyboardFunc(keyboard);///NOW6 配合鍵盤 glutMainLoop(); }