倫 電腦圖學 Week14

 

先開啟GLUT - 備份原始程式碼

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Timer

數三秒背景變紅色

#include <GL/glut.h>

static void display(void)

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glutWireSphere(0.3,30,30);

    glutSwapBuffers();

}

void timer(int t){

    glClearColor(1,0,0,0);

    display();

}

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

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("Week14 Timer");

    glutDisplayFunc(display);

    glutTimerFunc(3000,timer,0);

    glutMainLoop();

}

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數三秒背景變紅色且方形開始轉!

#include <GL/glut.h>

float angle=0;

void display(void)

{

    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);

    glClearColor(1,0,0,0);

    angle++;

    display();

}

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

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("Week14 Timer");

    glutDisplayFunc(display);

    glutTimerFunc(3000,timer,0);

    glutMainLoop();

}

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數三秒背景變紅色且方形開始轉，每轉90度往另一邊轉!

#include <GL/glut.h>

float angle=0;

void display(void)

{

    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(30,timer,t+1);

    glClearColor(1,0,0,0);

    if(angle>90) diff=-2;

    if(angle<0) diff=+2;

    angle += diff;

    angle++;

    display();

}

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

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("Week14 Timer");

    glutDisplayFunc(display);

    glutTimerFunc(3000,timer,0);

    glutMainLoop();

}

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掛上身體和肩膀!

#include <GL/glut.h>

float angle=0;

void drawArml(){

    glPushMatrix();

    glScalef(1,0.5,0.5);

    glColor3f(0,1,0); glutSolidCube(0.2);

    glPopMatrix();

}

void display(void)

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

    glColor3f(1,1,1); glutSolidCube(0.4);

        glTranslatef(-0.2,0.2,0);

        glRotatef(angle,0,0,1);

        glTranslatef(-0.1,0,0);

        drawArml();

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int diff=2;

void timer(int t){

    glutTimerFunc(30,timer,t+1);

    glClearColor(1,0,0,0);

    if(angle>90) diff=-2;

    if(angle<0) diff=+2;

    angle += diff;

    angle++;

    display();

}

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

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("Week14 Timer");

    glutDisplayFunc(display);

    glutTimerFunc(3000,timer,0);

    glutMainLoop();

}