week14

主題：Timer 與動畫

1.1 去moodle下載gundam.zip程式碼,Diffuse.jpg,gundam.obj/mt1 各部位

1.2 畫一個圓

程式碼：

#include <GLUT/glut.h>///用apple寫使用GLUT

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glutSolidSphere(0.3,30,30);

    glutSwapBuffers();

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("GLUT Shapes");

    glutDisplayFunc(display);

    glutMainLoop();

}

1.3 把背景改紅色

#include <GLUT/glut.h>
void display()
{
    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
    glutSolidSphere(0.3,30,30);//實心圓球 半徑 縱切 橫切
    glutSwapBuffers();
}
void timer(int t)
{
    glClearColor(1,0,0,0);//更改背景的顏色 ：紅色
    display();
}
int main(int argc,char **argv)
{
    glutInit(&argc,argv);
    glutInitDisplayMode(GLUT_DOUBLE| GLUT_DEPTH);
    glutCreateWindow("week14");
    glutDisplayFunc(display);
    glutTimerFunc(4000,timer,0);//參數
    glutMainLoop();
}

glutWireSphere(0.3,30,30);///使圓球切換成形狀不同的線狀 

2.1

製作一個會旋轉的方塊

程式碼：

#include <GLUT/glut.h>

int angle=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glRotatef(angle,0,0,1);

        glutSolidCube(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

void timer(int t)

{

    glutTimerFunc(30,timer,t+1);

    angle++;

    display();

}

int main(int argc,char** argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week14 timer");

    glutDisplayFunc(display);

    glutTimerFunc(4000,timer,0);///定時

    glutMainLoop();

}

2.2

讓方塊正逆時鐘旋轉

#include <GLUT/glut.h>
int angle=0;
void display()
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glPushMatrix();
        glRotatef(angle,0,0,1);
        glutSolidCube(0.3);
    glPopMatrix();
    glutSwapBuffers();
}
int diff=2;
void timer(int t)
{
    glutTimerFunc(20 , timer, t+1);
    angle+=diff;
    if(angle>180) diff=-diff;
    if(angle<0) diff=-diff;
    display();
}
int main(int argc, char** argv)
{
    glutInit( &argc, argv );
    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );
    glutCreateWindow(" Week14 timer ");
    glutDisplayFunc(display);
    glutTimerFunc(4000, timer, 0);
    glutMainLoop();
}

2.3手臂方塊
程式碼：
#include <GLUT/glut.h>
int angle=0;
void drawArm1()
{
    glPushMatrix();
        glScalef(1,0.5,0.5);
        glColor3f(1,0,0);glutSolidCube(0.3);
    glPopMatrix();
}
void display()
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glPushMatrix();
    glColor3f(1,1,1);glutSolidCube(0.4);
    glPushMatrix();
        glTranslatef(-0.2,+0.2,0);
        glRotatef(angle,0,0,1);
        glTranslatef(-0.15,+0,0);
        drawArm1();
        glPopMatrix();
    glPopMatrix();
    glutSwapBuffers();
}
int diff=2;
void timer(int t)
{
    glutTimerFunc(20,timer,t+1);
    angle+=diff;
    if(angle>90||angle<0)diff=-diff;
    display();
}
int main(int argc, char** argv)
{
    glutInit( &argc, argv );
    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );
    glutCreateWindow(" Week14 timer ");
    glutDisplayFunc(display);
    glutTimerFunc(0,timer,0);
    glutMainLoop();
}