week04
1.桌面安裝 freeglut , 把 lib 的 libfreeglut.a 複製成 libglut32.a
2. File-New-Project , GLUT 專案 week03_mouse 記得目錄(桌面) , GLUT目錄(桌面/freeglut)
3. 貼上10行程式碼
week04_mouse_glScalef
1. 加上週的week03_mouse_glRotatef的部分程式
2.複習上禮拜旋轉茶壺
///手動輸入 10程式
#include <GL/glut.h>
///float angle=0;///旋轉角度
float s = 1;
void display()
{
glClearColor(1.0,0.0,0.9,1.0);///清背景的淡黃色
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);///清背景
glPushMatrix();
///glRotatef(angle, 0, 0, 1);
glScalef(s, s, s);///縮放
glutSolidTeapot( 0.3 );
glPopMatrix();
glutSwapBuffers();
}
void motion(int x, int y)
{
///angle = x;
s = 1+(x-150)/150.0;
display();
}
int main(int argc, char*argv[])
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week04_mouse_glScalef");
glutDisplayFunc(display);
glutMotionFunc(motion);
glutMainLoop();
}
week04_keyboard_mouse_motion
1. 新增專案
2. 貼上11行程式碼
3.修改程式碼
4.在鍵盤上按鍵可以顯示滑鼠在小正方形當前的座標
#include <GL/glut.h>
#include <stdio.h>
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glutSolidTeapot( 0.3 );
glutSwapBuffers();
}
void keyboard(unsigned char key, int x, int y)
{
printf("key: %c x: %d y: %d\n", key, x, y);
}
int main(int argc, char *argv[])
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week04_keyboard_mouse_motion");
glutDisplayFunc(display);
glutKeyboardFunc(keyboard);
glutMainLoop();
}
5. 結合旋轉和鍵盤
#include <GL/glut.h>
#include <stdio.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 mouse(int button, int state, int x, int y)
{
oldX = x;
}
void motion(int x, int y)
{
angle += (x-oldX);
oldX = x;
display();
}
void keyboard(unsigned char key, int x, int y)
{
printf("key: %c x: %d y: %d\n", key, x, y);
}
int main(int argc, char *argv[])
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week04_keyboard_mouse_motion");
glutDisplayFunc(display);
glutKeyboardFunc(keyboard);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutMainLoop();
}
week04_translate_rotate_scale
1. 貼上前一個程式碼 , 再刪掉一些內容
2.修改程式碼 , 就能讓茶壺自行轉動了
#include <GL/glut.h>
#include <stdio.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();
}
int main(int argc, char *argv[])
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week04_mouse_glScalef");
glutDisplayFunc(display);
glutIdleFunc(display);
glutMainLoop();
}
3.再修改程式碼 , 能讓茶壺往右邊再變顏色
#include <GL/glut.h>
#include <stdio.h>
float angle = 0, oldX = 0;
void display()
{
glClearColor(1.0, 1.0, 0.9, 1.0);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glTranslatef(0.8, 0, 0);///放到右邊去
glRotatef(angle++, 0, 0, 1);///轉動中的
glScalef(0.3, 0.3, 0.3);///小小的
glColor3f(0, 1, 0);///綠色的
glutSolidTeapot( 0.3 );///茶壺
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char *argv[])
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week04_mouse_glScalef");
glutDisplayFunc(display);
glutIdleFunc(display);
glutMainLoop();
}
week04_rotate_translate_scale
1.交換程式碼 translate/rotate
2.看顏色對應圖
3.複製上一個程式碼 , 新增專案
4.將10跟11行交換就可從自轉變公轉了
#include <GL/glut.h>
#include <stdio.h>
float angle = 0, oldX = 0;
void display()
{
glClearColor(1.0, 1.0, 0.9, 1.0);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(angle++, 0, 0, 1);///轉動中的
glTranslatef(0.8, 0, 0);///放到右邊去
glScalef(0.3, 0.3, 0.3);///小小的
glColor3f(0, 1, 0);///綠色的
glutSolidTeapot( 0.3 );///茶壺
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char *argv[])
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week04_mouse_glScalef");
glutDisplayFunc(display);
glutIdleFunc(display);
glutMainLoop();
}
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