02160056簡瑜萱 WEEK4

1)作業表揚
2)本周重點:移動、旋轉、放大縮小
3)3D物件

TODO:下載課本範例  http://jsyeh.org/3dcg10

載windows/解壓縮/ Transformation

Translate移動  Rotate旋轉 Scale放大縮小

到http://www.transmissionzero.co.uk/software/freeglut-devel/載MinGW/解壓縮/lib/複製改libglut32/codeblocks/file/new/project/GLUT

#include<GL/glut.h>

void display()

{

    glTranslatef(0.8,0.8,0); 移動

    glutSolidTeapot(0.3);

    glFlush();

}

int main(int argc,char **argv)

{

    glutInit(&argc, argv);

    glutCreateWindow("02160056簡瑜萱");

    glutDisplayFunc(display);

    glutMainLoop();

}

做一個甜甜圈

#include<GL/glut.h>

void display()

{

    ///glutSolidTeapot(0.3);

    glutsolidTorus(0.3,0.7,30,30);(內徑r,外徑R,橫切,縱切)

    glFlush();

}

int main(int argc,char **argv)

{

    glutInit(&argc, argv);

    glutCreateWindow("02160056簡瑜萱");

    glutDisplayFunc(display);

    glutMainLoop();

}

#include<GL/glut.h>

void display()

{

    ///glutSolidTeapot(0.8,0.8,0);

    glutWireTorus(0.3,0.7,30,30);

    glFlush();

}

int main(int argc,char **argv)

{

    glutInit(&argc, argv);

    glutCreateWindow("02160056簡瑜萱");

    glutDisplayFunc(display);

    glutMainLoop();

}

甜甜圈未清畫面亂掉

#include<GL/glut.h>

float angle=0;

void display()

{

    glRotatef(angle, 1,1,0);

    glutWireTorus(0.3,0.7,30,30);

    glFlush();

    angle+=2;

}

int main(int argc,char **argv)

{

    glutInit(&argc, argv);

    glutCreateWindow("02160056簡瑜萱");

    glutDisplayFunc(display);

    glutMainLoop();

}

甜甜圈旋轉

#include<GL/glut.h>

float angle=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT);清畫面

    glRotatef(angle, 1,1,0);

    glutWireTorus(0.3,0.7,30,30);

    glFlush();

    angle+=2;

}

int main(int argc,char **argv)

{

    glutInit(&argc, argv);

    glutCreateWindow("02160056簡瑜萱");

    glutDisplayFunc(display);

    glutMainLoop();

}

甜甜圈自動旋轉

#include<GL/glut.h>

float angle=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT);畫面亂清畫面

    glPushMatrix();畫面亂備份Mrtrix

      glRotatef(angle, 1,1,0);

      glutWireTorus(0.3,0.7,30,30);

    glPopMatrix(); 畫面會亂所以還原Matrix

    glFlush();    衝出圖形

    angle+=0.1;

}

int main(int argc,char **argv)

{

    glutInit(&argc, argv);

    glutCreateWindow("02160056簡瑜萱");

    glutDisplayFunc(display);  當電腦需要display時，去呼叫的函式display()

    glutIdleFunc(display);

    glutMainLoop();

}