1. Glut 開新專案
#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 timer(int t)
{
glutTimerFunc(550, timer, t+1);///設定鬧鐘
angle +=90;///增加90度
glutPostRedisplay();///重劃畫面
}
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week14");
glutDisplayFunc(display);
glutTimerFunc(2000, timer, 0);
glutMainLoop();
}
固定時間會轉動
#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 timer(int t)
{
glutTimerFunc(500, timer, t+1);
angle +=90;
glutPostRedisplay();
}
void keyboard(unsigned char key, int x, int y)
{
glutTimerFunc(0, timer, 0);
}
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week14");
glutDisplayFunc(display);
glutKeyboardFunc(keyboard);
///glutTimerFunc(2000, timer, 0);
glutMainLoop();
}
按空白健會啟動鬧鐘
3. Glut 開新專案
#include <GL/glut.h>
float angle=0, oldAngle=0, newAngle=0;
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(angle, 0, 0, 1);
glutSolidTeapot( 0.3 );
glPopMatrix();
glutSwapBuffers();
}
void timer(int t)
{
if(t<100) glutTimerFunc(500, timer, t+1);
float alpha = t/ 100.0;
angle = newAngle*alpha + (1-alpha) * oldAngle;
glutPostRedisplay();
}
void motion(int x, int y)
{
angle = x;
glutPostRedisplay();
}
void mouse(int button, int state, int x, int y)
{
if(state==GLUT_DOWN) oldAngle = x;
if(state==GLUT_UP) oldAngle = x;
glutPostRedisplay();
}
void keyboard(unsigned char key, int x, int y)
{
glutTimerFunc(0, timer, 0);
}
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week14");
glutDisplayFunc(display);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc(keyboard);
glutMainLoop();
}
///week12-5_TRT_keyboard_mouse 要用 keyboard mouse 來操控
#include <stdio.h>
#include <GL/glut.h>
#include "glm.h" ///week13 step02-1
GLMmodel * head = NULL; ///week13 step02-1
GLMmodel * body = NULL; ///week13 step02-1
GLMmodel * uparmR = NULL; ///week13 step02-1
GLMmodel * lowarmR = NULL; ///week13 step02-1
int show[4] = {1, 1, 1, 1};
int ID = 0;
void keyboard(unsigned char key, int x, int y) {
if(key=='0') ID =0;
if(key=='1') ID =1;
if(key=='2') ID =2;
if(key=='3') ID =3;
glutPostRedisplay();
} ///原來的keyboard先註解、不要用
FILE * fout = NULL; ///step02-2 一開始,檔案沒有開, NULL
FILE * fin = NULL; ///step02-2 要讀檔用的指標, 一開始也是 NULL
float teapotX=0, teapotY=0; ///幫我們看移動值
float angle=0, angle2=0, angle3=0;///step03-2 擺動作
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glScalef(0.2, 0.2, 0.2); ///week13_step02-2
if(body==NULL){///week13 step02-1
head = glmReadOBJ("model/head.obj");
body = glmReadOBJ("model/body.obj");///week13 step02-1
uparmR = glmReadOBJ("model/uparmR.obj");///Week13 step03-1
lowarmR = glmReadOBJ("model/lowarmR.obj");///Week13 step03-1
///glmUnitize(body); ///week13 step02-1 這行之後會改
}
if(ID==0) glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[0]) glmDraw(head, GLM_MATERIAL);
if(ID==1) glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[1]) glmDraw(body, GLM_MATERIAL);
glPushMatrix();
glTranslatef(teapotX, teapotY, 0);
if(ID==2) glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[2]) glmDraw(uparmR, GLM_MATERIAL);
glPopMatrix();
if(ID==3) glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[3]) glmDraw(lowarmR, GLM_MATERIAL);
glPopMatrix();
glutSwapBuffers();
}
int oldX = 0, oldY = 0; ///Week13 step03-2
void motion(int x, int y){ ///Week13 step03-2
teapotX += (x - oldX)/150.0; ///Week13 step03-2
teapotY -= (y - oldY)/150.0; ///Week13 step03-2
oldX = x;
oldY = y;
printf("glTranslatef(%f, %f, 0);\n", teapotX, teapotY);
glutPostRedisplay(); ///Week13 step03-2
} ///Week13 step03-2
void mouse(int button, int state, int x, int y)
{
if(state==GLUT_DOWN){
oldX = x; ///teapotX = (x-150)/150.0;
oldY = y; ///teapotY = (150-y)/150.0;
angle = x;
///printf("glTranslatef(%f, %f, 0);\n", teapotX, teapotY);
///if(fout==NULL) fout = fopen("file4.txt", "w"); ///step02-2 沒開檔,就開
///fprintf(fout, "%f %f\n", teapotX, teapotY); ///step02-2 要再存座標
}
display();
}
//void keyboard(unsigned char key, int x, int y) ///step02-2 keyboard函式
//{
// if(fin==NULL){ ///step02-2 如果檔案還沒 fopen(), 就開它
// fclose(fout); ///前面mouse會開fout指標, 所以要關掉
// fin = fopen("file4.txt", "r"); ///step02-2 沒開檔,就開
// }
// ///fscanf(fin, "%f %f", &teapotX, &teapotY); ///step02-2 真的讀檔
// display(); ///step02-2 重畫畫面
//}
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week12");
glutDisplayFunc(display);
glutMouseFunc(mouse);
glutMotionFunc(motion); ///Week13 step03-3
glutKeyboardFunc(keyboard); ///step02-2 keyboard要做事囉(開檔、讀檔)
glutMainLoop();
}
按0,1,2,3 可以顯示紅色圖案
5.
#include <stdio.h>
#include <GL/glut.h>
#include "glm.h"
GLMmodel * head = NULL;
GLMmodel * body = NULL;
GLMmodel * uparmR = NULL;
GLMmodel * lowarmR = NULL;
int show[4] = {0, 0, 1, 0};///1顯示部位, 0不顯示部位
int ID = 0;
void keyboard(unsigned char key, int x, int y) {
if(key=='0') ID =0;
if(key=='1') ID =1;
if(key=='2') ID =2;
if(key=='3') ID =3;
glutPostRedisplay();
} ///原來的keyboard先註解、不要用
FILE * fout = NULL; ///step02-2 一開始,檔案沒有開, NULL
FILE * fin = NULL; ///step02-2 要讀檔用的指標, 一開始也是 NULL
float teapotX=0, teapotY=0; ///幫我們看移動值
float angle=0, angle2=0, angle3=0;///step03-2 擺動作
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glScalef(0.2, 0.2, 0.2);
if(body==NULL){
head = glmReadOBJ("model/head.obj");
body = glmReadOBJ("model/body.obj");
uparmR = glmReadOBJ("model/uparmR.obj");
lowarmR = glmReadOBJ("model/lowarmR.obj");
///glmUnitize(body); ///week13 step02-1 這行之後會改
}
if(ID==0) glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[0]) glmDraw(head, GLM_MATERIAL);
if(ID==1) glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[1]) glmDraw(body, GLM_MATERIAL);
glPushMatrix();
glTranslatef(-1.200000, +0.453333, 0);
glRotatef(angle, 0, 0, 1);
glTranslatef(1.200000, -0.453333, 0);
if(ID==2) glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[2]) glmDraw(uparmR, GLM_MATERIAL);
glPopMatrix();
if(ID==3) glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[3]) glmDraw(lowarmR, GLM_MATERIAL);
glPopMatrix();
glColor3f(0, 1, 0);
glutSolidTeapot( 0.02 );
glutSwapBuffers();
}
int oldX = 0, oldY = 0;
void motion(int x, int y){
teapotX += (x - oldX)/150.0;
teapotY -= (y - oldY)/150.0;
oldX = x;
oldY = y;
angle = x;
printf("glTranslatef(%f, %f, 0);\n", teapotX, teapotY);
glutPostRedisplay();
}
void mouse(int button, int state, int x, int y)
{
if(state==GLUT_DOWN){
oldX = x; ///teapotX = (x-150)/150.0;
oldY = y; ///teapotY = (150-y)/150.0;
angle = x;
///printf("glTranslatef(%f, %f, 0);\n", teapotX, teapotY);
///if(fout==NULL) fout = fopen("file4.txt", "w"); ///step02-2 沒開檔,就開
///fprintf(fout, "%f %f\n", teapotX, teapotY); ///step02-2 要再存座標
}
display();
}
//void keyboard(unsigned char key, int x, int y) ///step02-2 keyboard函式
//{
// if(fin==NULL){ ///step02-2 如果檔案還沒 fopen(), 就開它
// fclose(fout); ///前面mouse會開fout指標, 所以要關掉
// fin = fopen("file4.txt", "r"); ///step02-2 沒開檔,就開
// }
// ///fscanf(fin, "%f %f", &teapotX, &teapotY); ///step02-2 真的讀檔
// display(); ///step02-2 重畫畫面
//}
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week12");
glutDisplayFunc(display);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc(keyboard); ///step02-2 keyboard要做事囉(開檔、讀檔)
glutMainLoop();
}
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