電腦圖學 Week06👀👀👀

\\轉動藍色方塊

#include <GL/glut.h> float angle=0; void display() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glPushMatrix(); glRotatef(angle, 0, 0, 1);//對中心轉動 glScalef(0.5,0.1,0.1); glColor3f(0,0,1); glutSolidCube(1);//方塊 glPopMatrix(); glutSwapBuffers(); angle++;//TODO } int main(int argc, char**argv) { glutInit( &argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH); glutCreateWindow("08163105"); glutDisplayFunc( display); glutIdleFunc(display);//閒閒有空時 就重畫畫面 glutMainLoop(); }

繞著中心轉

#include <GL/glut.h>

float angle=0; void display()

{ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glPushMatrix(); glRotatef(angle, 0, 0, 1);//對中心轉動 glTranslatef(0.25,0,0);//增加中心的位置 glScalef(0.5,0.1,0.1);//細長的 glColor3f(0,0,1);//藍色的 glutSolidCube(1);//方塊 glPopMatrix(); glutSwapBuffers(); angle++; } int main(int argc, char**argv) { glutInit( &argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH); glutCreateWindow("08163105"); glutDisplayFunc( display); glutIdleFunc(display); glutMainLoop(); }

#include <GL/glut.h> float angle=0; void hand(){ glPushMatrix(); glScalef(0.5,0.1,0.1); glColor3f(0,0,1); glutSolidCube(1); glPopMatrix(); } void display() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glColor3f(1,1,1); glutSolidCube(1);//大身體 glPushMatrix(); glTranslatef(0.5,0.5,0);//整個移到右上角 glRotatef(angle, 0, 0, 1);//對中心轉動 glTranslatef(0.25,0,0);//把關節移到中心 hand();//細長的手 glPopMatrix(); glutSwapBuffers(); angle++; } int main(int argc, char**argv) { glutInit( &argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH); glutCreateWindow("08163105"); glutDisplayFunc( display); glutIdleFunc(display); glutMainLoop(); }

藍色手臂轉動

(特別注意)容易錯誤的地方\\ glPushMatrix glPopMatrix

#include <GL/glut.h> float angle=0; void hand(){ glPushMatrix(); glScalef(0.5,0.1,0.1);//細長

glColor3f(0,0,1);//藍色 glutSolidCube(1);//方塊 glPopMatrix(); } void display() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glColor3f(1,1,1); glutSolidCube(0.5);//大的身體(把身體縮小不然看不到手臂)

glPushMatrix(); glTranslatef(0.25,0.25,0);//整個移到右上角掛著 glRotatef(angle, 0, 0, 1);//對中心轉動 glTranslatef(0.25,0,0);//把關節移到中心 hand();//細長的藍色長手臂 glPushMatrix(); glTranslatef(0.25,0,0);//往右拉過去 glRotatef(angle, 0, 0, 1); glTranslatef(0.25,0,0); hand();//下右手臂 glPopMatrix(); glPopMatrix(); glutSwapBuffers(); angle++; } int main(int argc, char**argv) { glutInit( &argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH); glutCreateWindow("08163105"); glutDisplayFunc( display); glutIdleFunc(display); glutMainLoop(); }

#include <GL/glut.h> float angle=0; void hand(){ glPushMatrix(); glScalef(0.5,0.1,0.1); glColor3f(0,0,1); glutSolidCube(1); glPopMatrix(); } void display() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glColor3f(1,1,1); glutSolidCube(0.5); glPushMatrix();//右半邊 glTranslatef(0.25,0.25,0);//整個移到右上角掛著 glRotatef(angle, 0, 0, 1);//對中心轉動 glTranslatef(0.25,0,0);//把關節移到中心 hand();//細長的手臂 glPushMatrix(); glTranslatef(0.25,0,0); glRotatef(angle, 0, 0, 1); glTranslatef(0.25,0,0); hand();下手臂跟手軸 glPopMatrix(); glPopMatrix(); glPushMatrix();//左半邊 glTranslatef(-0.25,0.25,0);//整個移到左上角掛著 glRotatef(-angle, 0, 0, 1);//對中心轉動 glTranslatef(-0.25,0,0);//把關節移到中心 hand();//細長的藍色手臂 glPushMatrix(); glTranslatef(-0.25,0,0);//往左拉過去 glRotatef(-angle, 0, 0, 1); glTranslatef(-0.25,0,0); hand();//下手臂跟手軸 glPopMatrix(); glPopMatrix(); glutSwapBuffers(); angle++; } int main(int argc, char**argv) { glutInit( &argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH); glutCreateWindow("08163105"); glutDisplayFunc( display); glutIdleFunc(display); glutMainLoop(); }