今天要做的是機器人
先觀察角度旋轉和位移讓關節做旋轉
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首先先製造一個茶壺 並且打光 寫深度 (目前還不會移動喔!) |
#include <GL/glut.h>
float angle=0;
void drawBody()
{
glPushMatrix();
glScalef(1,0.5,0.5);
glutSolidCube(1);
glPopMatrix();
}
void drawArm()
{
glPushMatrix();
glScalef(0.6,0.3,0.3);
glutSolidCube(1);
glPopMatrix();
}
void display()
{
GLfloat pos[]={0,0,-1,0}; ///打光
glLightfv(GL_LIGHT0,GL_POSITION,pos);
glEnable(GL_LIGHT0);
glEnable(GL_LIGHTING);
glEnable(GL_DEPTH_TEST);
glClear(GL_COLOR_BUFFER_BIT |GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glTranslatef(0.5,0,0); ///step4:把"會對茶把手做旋轉的東西"再移到右上 掛上去
glRotatef(angle,0,0,1); ///step3:把茶壺都對中間旋轉
glTranslatef(0.3,0,0); ///step2:往右移*/
drawArm(); ///step1:這是一個茶壺
glPopMatrix();
drawBody();
glFlush();
}
void timer(int t)
{
glutTimerFunc(20,timer,t+1);
angle++;
glutPostRedisplay();
}
int main(int argc,char**argv)
{
glutInit(&argc,argv);
glutCreateWindow("T-R-T test");
glutDisplayFunc(display);
glutTimerFunc(20,timer,0);
glutMainLoop();
}
使用兩個cube
當作上手臂和下手臂
就可以產生多個關節
#include <GL/glut.h>
float angle=0,oldX=0,oldY=0;
void drawBody()
{
glPushMatrix();
glScalef(1,0.5,0.5);
glutSolidCube(1);
glPopMatrix();
}
void drawArm()
{
glPushMatrix();
glScalef(0.6,0.3,0.3);
glutSolidCube(1);
glPopMatrix();
}
void display()
{
GLfloat pos[]={0,0,-1,0}; ///打光
glLightfv(GL_LIGHT0,GL_POSITION,pos);
glEnable(GL_LIGHT0);
glEnable(GL_LIGHTING);
glEnable(GL_DEPTH_TEST);
glClear(GL_COLOR_BUFFER_BIT |GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glTranslatef(0.5,0,0); ///step4:把"會對Arm Joint做旋轉的東西"再移到右上 掛上去
glRotatef(angle,0,0,1); ///step3:把下面整團都對中間旋轉
glTranslatef(0.25,0,0); ///step2:把他往右移,Arm Joint在中間
drawArm(); ///step1:這是一個Arm
glPushMatrix();
glTranslatef(0.25,0,0); ///step4:把"會對Arm Joint做旋轉的東西"再移到右上 掛上去
glRotatef(angle,0,0,1); ///step3:把下面整團都對中間旋轉
glTranslatef(0.25,0,0); ///step2:把他往右移,Arm Joint在中間
drawArm(); ///step1:這是一個Arm
glPopMatrix();
glPopMatrix();
glPushMatrix();
glTranslatef(-0.5,0,0); ///step4:把"會對Arm Joint做旋轉的東西"再移到右上 掛上去
glRotatef(-angle,0,0,1); ///step3:把下面整團都對中間旋轉
glTranslatef(-0.25,0,0); ///step2:把他往右移,Arm Joint在中間
drawArm(); ///step1:這是一個Arm
glPushMatrix();
glTranslatef(-0.25,0,0); ///step4:把"會對Arm Joint做旋轉的東西"再移到右上 掛上去
glRotatef(-angle,0,0,1); ///step3:把下面整團都對中間旋轉
glTranslatef(-0.25,0,0); ///step2:把他往右移,Arm Joint在中間
drawArm(); ///step1:這是一個Arm
glPopMatrix();
glPopMatrix();
drawBody();
glFlush();
}
void motion(int x,int y)
{
angle-=y-oldY;
oldY=y;oldX=x;
}
void mouse(int button,int state,int x,int y)
{
if(state==GLUT_DOWN)
{
oldX=x;oldY=y;
}
}
void timer(int t)
{
glutTimerFunc(20,timer,t+1);
//angle++;
glutPostRedisplay();
}
int main(int argc,char**argv)
{
glutInit(&argc,argv);
glutCreateWindow("T-R-T test");
glutDisplayFunc(display);
glutTimerFunc(20,timer,0);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutMainLoop();
}
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