因為之前在忙啦啦的事,所以缺了一兩堂課
所以今天上課的時候就對上課內容有點不熟悉
但經過同學跟老師的幫忙也慢慢地跟上進度了~~~~
插入glutMotionFunc(motion);函式讓我們可以利用滑鼠操控圖形
#include <GL/glut.h>
float angle=0;
void display()
{
glClear(GL_COLOR_BUFFER_BIT);
glPushMatrix();
glRotatef( angle, 0, 1, 0.5);
glBegin(GL_POLYGON);;
glColor3f(1,0,0);
glVertex3f(0.1, 0.1, 0.8);
glVertex3f(-0.1, 0.1, 0.8);
glVertex3f(-0.1, -0.1, 0.8);
glVertex3f(0.1, -0.1, 0.8);
glEnd();
glBegin(GL_POLYGON);;
glColor3f(1,0,0);
glVertex3f(0.1, 0.1, -0.8);
glVertex3f(-0.1, 0.1, -0.8);
glVertex3f(-0.1, -0.1, -0.8);
glVertex3f(0.1, -0.1, -0.8);
glEnd();
glBegin(GL_QUAD_STRIP);
glColor3f(1,1,0);
glVertex3f(0.1, 0.1, 0.8);
glVertex3f(0.1, 0.1, -0.8);
glVertex3f(-0.1, 0.1, 0.8);
glVertex3f(-0.1, 0.1, -0.8);
glVertex3f(-0.1, -0.1, 0.8);
glVertex3f(-0.1, -0.1, -0.8);
glVertex3f(0.1, -0.1, 0.8);
glVertex3f(0.1, -0.1, -0.8);
glEnd();
glPopMatrix();
angle +=0.01;
glFlush();
}
int oldX=0;
void motion(int x, int y)
{
angle += (x-oldX);
oldX=x;
}
int main(int argc,char **argv)
{
glutInit(&argc, argv);
glutCreateWindow("02160704flight");
glutDisplayFunc(display);
glutIdleFunc(display);
glutMotionFunc(motion);///mouse motion drag動作移動的函式
glutMainLoop();
}
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