step01-01
用glut寫出一個正方形
#include<GL/glut.h>
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glRectf(0.5,0.5,-0.5,-0.5);
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);
glutInitWindowSize(600,600);
glutCreateWindow("week13 rect TRT");
glutDisplayFunc (display);
glutMainLoop();
}
step01-02
加上一個手臂
#include<GL/glut.h>
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);
glRectf(0.5,0.5,-0.5,-0.5);
glPushMatrix();
///glTranslatef(0.3,0,0);
/// glRotatef(angle ,0 ,0 ,1);
/// glTranslatef(0.2,0,0);
glColor3f(1,0,0);
glRectf(0.5,0.5,1.0,0.3);
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);
///glutInitWindowSize(600,600);
glutCreateWindow("week13 rect TRT");
glutDisplayFunc (display);
glutMainLoop();
}
step01-03
把紅色手臂移動到中間並并且調45°
把第一個trt的translate注解掉
#include<GL/glut.h>
float angle=45;
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);
glRectf(0.5,0.5,-0.5,-0.5);
glPushMatrix();
/// glTranslatef(0.3,0,0);
glRotatef(angle ,0 ,0 ,1);
glTranslatef(-0.5,-0.4,0);
glColor3f(1,0,0);
glRectf(0.5,0.5,1.0,0.3);
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);
///glutInitWindowSize(600,600);
glutCreateWindow("week13 rect TRT");
glutDisplayFunc (display);
glutMainLoop();
}
step01-4
把紅色手臂放到右上角
然後加入mouse跟motion
變成可以用滑鼠移動的
#include<GL/glut.h>
float angle=45,oldX=0;
void mouse(int button, int state,int x,int y)
{
oldX= x;
}
void motion (int x, int y )
{
angle += (x-oldX);
oldX = x;
glutPostRedisplay();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);
glRectf(0.5,0.5,-0.5,-0.5);
glPushMatrix();
glTranslatef(0.5,0.5,0);
glRotatef(angle ,0 ,0 ,1);
glTranslatef(-0.5,-0.4,0);
glColor3f(1,0,0);
glRectf(0.5,0.5,1.0,0.3);
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);
///glutInitWindowSize(600,600);
glutCreateWindow("week13 rect TRT");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutDisplayFunc (display);
glutMainLoop();
}
step02-01
開了一個新的專案
TRTTRT多弄一個關節
step02-02
幫他多加一個綠色的手臂
#include<GL/glut.h>
float angle=45,oldX=0;
void mouse(int button, int state,int x,int y)
{
oldX= x;
}
void motion (int x, int y )
{
angle += (x-oldX);
oldX = x;
glutPostRedisplay();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);
glRectf(0.3,0.5,-0.3,-0.2);
glPushMatrix();
glTranslatef(0.3,0.5,0);
glRotatef(angle ,0 ,0 ,1);
glTranslatef(-0.3,-0.4,0);
glColor3f(1,0,0);
glRectf(0.3,0.5,0.8,0.3);
glPushMatrix();
glTranslatef(0,0,0);
glRotatef(angle ,0 ,0 ,1);
glTranslatef(0,0,0);
glColor3f(0,1,0);
glRectf(0.8,0.5,1.1,0.3);
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);
///glutInitWindowSize(600,600);
glutCreateWindow("week13 rect TRT");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutDisplayFunc (display);
glutMainLoop();
}
step02-03
先改變綠手臂的旋轉位置
後面再改位置把他連在紅手臂的尾端
#include<GL/glut.h>
float angle=45,oldX=0;
void mouse(int button, int state,int x,int y)
{
oldX= x;
}
void motion (int x, int y )
{
angle += (x-oldX);
oldX = x;
glutPostRedisplay();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);
glRectf(0.3,0.5,-0.3,-0.2);
glPushMatrix();
glTranslatef(0.3,0.5,0);
glRotatef(angle ,0 ,0 ,1);
glTranslatef(-0.3,-0.4,0);
glColor3f(1,0,0);
glRectf(0.3,0.5,0.8,0.3);
glPushMatrix();
glTranslatef(0.8,0.4,0);
glRotatef(angle ,0 ,0 ,1);
glTranslatef(-0.8,-0.4,0);
glColor3f(0,1,0);
glRectf(0.8,0.5,1.1,0.3);
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);
///glutInitWindowSize(600,600);
glutCreateWindow("week13 rect TRT");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutDisplayFunc (display);
glutMainLoop();
}
step03-01
複製TRT的第一隻手臂
貼下去加一條手臂
多少push就多少pop不然會影響程式碼
#include<GL/glut.h>
float angle=45,oldX=0;
void mouse(int button, int state,int x,int y)
{
oldX= x;
}
void motion (int x, int y )
{
angle += (x-oldX);
oldX = x;
glutPostRedisplay();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);
glRectf(0.3,0.5,-0.3,-0.2);
glPushMatrix();
glTranslatef(0.3,0.5,0);
glRotatef(angle ,0 ,0 ,1);
glTranslatef(-0.3,-0.4,0);
glColor3f(1,0,0);
glRectf(0.3,0.5,0.8,0.3);
glPushMatrix();
glTranslatef(0.8,0.4,0);
glRotatef(angle ,0 ,0 ,1);
glTranslatef(-0.8,-0.4,0);
glColor3f(0,1,0);
glRectf(0.8,0.5,1.1,0.3);
glPopMatrix();
glPopMatrix();
glPushMatrix();
glTranslatef(-0.3,0.5,0);
glRotatef(angle ,0 ,0 ,1);
glTranslatef(+0.3,-0.4,0);
glColor3f(1,0,0);
glRectf(-0.3,0.5,-0.8,0.3);
glPushMatrix();
glTranslatef(-0.8,0.4,0);
glRotatef(angle ,0 ,0 ,1);
glTranslatef(+0.8,-0.4,0);
glColor3f(0,1,0);
glRectf(-0.8,0.5,-1.1,0.3);
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);
///glutInitWindowSize(600,600);
glutCreateWindow("week13 rect TRT");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutDisplayFunc (display);
glutMainLoop();
}
step03-2
angle[angleID]
就是讓他知道angle的ID是什麽
加上keyboard的程式碼
可以用鍵盤的0123來分開控制每個關節
要在下面加上glutkeyboardfunc(keyboard);
#include<GL/glut.h>
float angle[20],oldX=0;
int angleID=0;
void keyboard(unsigned char key, int x,int y)
{
if(key=='0') angleID=0;
if(key=='1') angleID=1;
if(key=='2') angleID=2;
if(key=='3') angleID=3;
}
void mouse(int button, int state,int x,int y)
{
oldX= x;
}
void motion (int x, int y )
{
angle[angleID] += (x-oldX);
oldX = x;
glutPostRedisplay();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);
glRectf(0.3,0.5,-0.3,-0.2);
glPushMatrix();
glTranslatef(0.3,0.5,0);
glRotatef(angle[0] ,0 ,0 ,1);
glTranslatef(-0.3,-0.4,0);
glColor3f(1,0,0);
glRectf(0.3,0.5,0.8,0.3);
glPushMatrix();
glTranslatef(0.8,0.4,0);
glRotatef(angle[1] ,0 ,0 ,1);
glTranslatef(-0.8,-0.4,0);
glColor3f(0,1,0);
glRectf(0.8,0.5,1.1,0.3);
glPopMatrix();
glPopMatrix();
glPushMatrix();
glTranslatef(-0.3,0.5,0);
glRotatef(angle [2],0 ,0 ,1);
glTranslatef(+0.3,-0.4,0);
glColor3f(1,0,0);
glRectf(-0.3,0.5,-0.8,0.3);
glPushMatrix();
glTranslatef(-0.8,0.4,0);
glRotatef(angle[3] ,0 ,0 ,1);
glTranslatef(+0.8,-0.4,0);
glColor3f(0,1,0);
glRectf(-0.8,0.5,-1.1,0.3);
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);
///glutInitWindowSize(600,600);
glutCreateWindow("week13 rect TRT");
glutKeyboardFunc(keyboard);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutDisplayFunc (display);
glutMainLoop();
}
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