#include <stdio.h>
#include <GL/glut.h>
void display ()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix ();
glutSolidTeapot(1);
glPopMatrix();
glutSwapBuffers();
}
void motion (int x,int y)
{
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(x/80.0, y/200.0,5,
0, 0, 0,
0, 1, 0);
glutPostRedisplay();
}
void resize(int w, int h)
{
glViewport(0, 0,(GLsizei) w, (GLsizei) h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(65.0,(GLdouble) w / h,1.0, 100.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(0.0, 0.0,5.0,
0.0, 0.0, 0.0,
0.0, 1.0, 0.0);
}
int main (int argc, char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow(":D");
glutDisplayFunc(display);
glutMotionFunc(motion);
glutReshapeFunc(resize);
glutMainLoop();
}
2.運鏡+機器人
#include <stdio.h>
#include <GL/glut.h>
float rot[10]={0}, rotOld[10]={0}, rotNew[10]={0};
int rotNow=0, oldX=0, oldY=0;;
FILE *fout=0, *fin=0;
void timer(int t)
{
float alpha=(t%10)/10.0;///!!!!
//pos = newX*alpha+oldX*(1-alpha);
if(t%10==0){
if(fin==NULL) fin=fopen("motion.txt", "r");
for(int i=0;i<7;i++){
rotOld[i]=rotNew[i];
fscanf(fin, "%f", &rotNew[i]);
}
}
for(int i=0;i<7;i++){
rot[i]=rotNew[i]*alpha+rotOld[i]*(1-alpha);
}
glutTimerFunc(100, timer, t+1);
glutPostRedisplay();
}
void display ()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glPushMatrix();
glutWireCube(0.3);///body
glPushMatrix();
glTranslatef(0,0.2,0);
glutWireCube(0.1);///head
glPopMatrix();
glPushMatrix();
glTranslatef(0.15,0.1,0);
glRotatef(rot[0],0,0,1);
glTranslatef(0.05,0,0);
glutWireCube(0.1);///upper arm
glTranslatef(0.05,0,0);
glRotatef(rot[1],0,0,1);
glTranslatef(0.05,0,0);
glutWireCube(0.1);///lower arm
glTranslatef(0.05,0,0);
glRotatef(rot[2],0,0,1);
glTranslatef(0.05,0,0);
glutWireCube(0.1);///right arm
glPopMatrix();
glPushMatrix();
///glTranslatef(-0.2,0.1,0);
glTranslatef(-0.15,0.1,0);
glRotatef(-rot[4],0,0,1);
glTranslatef(-0.05,0,0);
glutWireCube(0.1);///upper arm
glTranslatef(-0.05,0,0);
glRotatef(-rot[5],0,0,1);
glTranslatef(-0.05,0,0);
glutWireCube(0.1);///lower arm
glTranslatef(-0.05,0,0);
glRotatef(-rot[6],0,0,1);
glTranslatef(-0.05,0,0);
glutWireCube(0.1);///right hand
glPopMatrix();
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
void keyboard(unsigned char key, int x, int y)
{
if(key=='0') rotNow=0;
if(key=='1') rotNow=1;
if(key=='2') rotNow=2;
if(key=='3') rotNow=3;
if(key=='4') rotNow=4;
if(key=='5') rotNow=5;
if(key=='6') rotNow=6;
if(key=='r'){///按小寫的r 會去讀1行/一組x,y
if(fin==NULL) fin=fopen("motion.txt", "r");
for(int i=0;i<7;i++){
fscanf(fin, "%f", &rot[i]);
}
}
if(key=='t'){
if(fin==NULL) fin=fopen("motion.txt", "r");
for(int i=0;i<7;i++){
fscanf(fin, "%f", &rotNew[i]);
}
glutTimerFunc(100,timer, 0);
glutPostRedisplay();
}
if(key=='s'){///!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
if(fout==NULL) fout=fopen("motion.txt", "w+");
for(int i=0;i<7;i++){
fprintf(fout, "%3.1f ", rot[i]);
printf("%3.1f ", rot[i]);
}
fprintf(fout, "\n");
printf("\n");
}
glutPostRedisplay();///電腦貼個Post-It便利貼,告訴GLUT有空要重畫畫面哦
}
void motion (int x,int y)
{
rot[rotNow] += x-oldX;
oldX = x;
glutPostRedisplay();
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(x/80.0, y/200.0,5,
0, 0, 0,
0, 1, 0);
glutPostRedisplay();
}
void mouse(int button, int state, int x, int y)
{///先開冰箱門(滑鼠按下去),把大象塞進去(滑鼠drag),最後再關上冰箱門(起來)
if(state==GLUT_DOWN){
oldX=x; oldY=y;
}
}
void resize(int w, int h)
{
glViewport(0, 0,(GLsizei) w, (GLsizei) h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(10.0,(GLdouble) w / h,1.0, 100.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(0.0, 0.0,5.0,
0.0, 0.0, 0.0,
0.0, 1.0, 0.0);
}
int main (int argc, char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow(":D");
glutDisplayFunc(display);
glutKeyboardFunc(keyboard);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutReshapeFunc(resize);
glutMainLoop();
}


沒有留言:
張貼留言