1.https://jsyeh.org/3dcg10/
下載win32,data
解壓縮windows.zip,data.zip
2.測試rotate方向,用安培右手定則可知道旋轉方向。
#include <GL/glut.h>
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(90,0,0,1);
glutSolidTeapot(0.3);
glPopMatrix();
glutSwapBuffers();
}
int main(int argc,char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("Week04 Rotate");
glutDisplayFunc(display);
glutMainLoop();
}
讓茶壺移動
#include <GL/glut.h>
float angle=0;
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(angle,0,0,1);
glutSolidTeapot(0.3);
glPopMatrix();
glutSwapBuffers();
}
void motion(int x,int y)
{
angle=x;
display();
}
int main(int argc,char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("Week04 Rotate");
glutDisplayFunc(display);
glutMotionFunc(motion);
glutMainLoop();
}
第三個程式碼
#include <GL/glut.h>
float angle=0 , oldX=0;
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(angle,0,0,1);
glutSolidTeapot(0.3);
glPopMatrix();
glutSwapBuffers();
}
void motion(int x,int y)
{
angle += (x-oldX);
oldX=x;
display();
}
void mouse (int button,int state,int x,int y)
{
oldX=x;
}
int main(int argc,char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("Week04 Rotate");
glutDisplayFunc(display);
glutMotionFunc(motion);
glutMouseFunc(mouse);
glutMainLoop();
}
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