開新glut專案
製作計時器
#include <GL/glut.h>
float angle=0;
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotated(angle,0,0,1);
glutSolidTeapot(0.3);
glPopMatrix();
glutSwapBuffers();
}
void timer(int t)
{
glutTimerFunc(500,timer,t+1);///設定下一個鬧鐘
angle+=90;///增加90度
glutPostRedisplay();///重畫畫面
}
int main(int argc,char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week14");
glutDisplayFunc(display);
glutTimerFunc(2000,timer,0);
glutMainLoop();
}
使用鍵盤播放
#include <GL/glut.h>
float angle=0;
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotated(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();
}
內插
#include <GL/glut.h>
float angle=0,oldAngle=0,newAngle;
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotated(angle,0,0,1);
glutSolidTeapot(0.3);
glPopMatrix();
glutSwapBuffers();
}
void timer(int t)
{
if(t<100) glutTimerFunc(50,timer,t+1);
float alpha=t/100.0;
angle=newAngle*alpha+(1-alpha)*oldAngle;///alpha內插公式
glutPostRedisplay();///重畫畫面
}
void motion(int x,int y)
{
angle=x;///即時更新角度
glutPostRedisplay();///重畫畫面
}
void mouse(int button,int state,int x,int y)
{
if(state==GLUT_DOWN)oldAngle=x;///按下去
if(state==GLUT_UP)newAngle=x;///放開來
glutPostRedisplay();///重畫畫面
}
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();
}
開啟上週final_project
#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] = {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();
}
FILE * fout = NULL;
FILE * fin = NULL;
float teapotX=0, teapotY=0;
float angle=0, angle2=0, angle3=0;
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");
}
if(ID==0)glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[0]) glmDraw(head, GLM_MATERIAL);
if(ID==1)glColor3f(0,1,0);
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;
void motion(int x, int y){
teapotX += (x - oldX)/150.0;
teapotY -= (y - oldY)/150.0;
oldX = x;
oldY = y;
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;
oldY = y;
angle = x;
}
display();
}
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week12");
glutDisplayFunc(display);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc(keyboard);
glutMainLoop();
}
使手軸可轉動 把茶壺設成中心點
#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};
int ID=2;
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();
}
FILE * fout = NULL;
FILE * fin = NULL;
float teapotX=0, teapotY=0;
float angle=0, angle2=0, angle3=0;
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");
}
if(ID==0)glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[0]) glmDraw(head, GLM_MATERIAL);
if(ID==1)glColor3f(0,1,0);
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(1.2000000,-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;
oldY = y;
angle = x;
}
display();
}
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week12");
glutDisplayFunc(display);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc(keyboard);
glutMainLoop();
}
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