week04 記筆的我

http://www.cmlab.csie.ntu.edu.tw/~jsyeh/3dcg10/

下載glut32.dll

下載data.zip

下載windows.zip


glRotatef(角度,x軸,y軸,z軸)



期 中 考

#include <stdio.h>
#include <GL/glut.h>
float angle=0;
void display()
{
    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
    glPushMatrix();///備份矩陣
        glRotatef(angle, 0, 0, 1);///旋轉
        glutSolidTeapot(0.3);
    glPopMatrix();///還原矩陣
    glutSwapBuffers();
    angle++;///角度+1度
}
int main(int argc, char*argv[])
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
    glutCreateWindow("Week04 transformation");

    glutIdleFunc(display);
    glutDisplayFunc(display);
    glutMainLoop();
}

#include <stdio.h>
#include <GL/glut.h>
float angle=0, teapotX=0, teapotY=0;///加上移動的座標
int oldX=0, oldY=0, nowRotate=0; ///0: translate, 1:rotate
void display()
{
    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
    glPushMatrix();///備份矩陣
        glTranslatef(teapotX, teapotY, 0);///把茶壺再移動
        glRotatef(angle, 0, 0, 1);///旋轉
        glutSolidTeapot(0.3);
    glPopMatrix();///還原矩陣
    glutSwapBuffers();
}
void mouse(int button, int state, int x, int y)
{
    if(button==GLUT_LEFT_BUTTON && state==GLUT_DOWN) nowRotate=1;///是左鍵就旋轉
    if(button==GLUT_RIGHT_BUTTON&& state==GLUT_DOWN) nowRotate=0;///是右鍵就移動
    oldX=x; oldY=y;
}
void motion(int x, int y)
{
    if(nowRotate==1) angle += (x-oldX);///改變angle值
    else{
        teapotX += (x-oldX)/150.0;
        teapotY += (oldY-y)/150.0;
    }
    oldX=x; oldY=y;
    glutPostRedisplay();
}
int main(int argc, char*argv[])
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
    glutCreateWindow("Week04 transformation");

    glutIdleFunc(display);
    glutDisplayFunc(display);
    glutMainLoop();
}