2018電腦圖學: Week 12 ADDONE notes

(1) T-R-T關節轉動

(2) PlaySound() , MP3播放

(3) 主題:計時器

(4) 內插，線性內插，動畫。

1.到moodle 下載 : freeglut，音樂， CMP3_MCI.h 2.改Project的.....cbp檔 "bin" 改成 "."
3.把freeglut CMP3_MCI.h MP3 檔放在Project裡

計時器

#ifdef __APPLE__

#include <GLUT/glut.h>

#else

#include <GL/glut.h>

#endif

#include <stdlib.h>

static int slices = 16;

static int stacks = 16;

/* GLUT callback Handlers */

static void resize(int width, int height)

{

const float ar = (float) width / (float) height;

glViewport(0, 0, width, height);

glMatrixMode(GL_PROJECTION);

glLoadIdentity();

glFrustum(-ar, ar, -1.0, 1.0, 2.0, 100.0);

glMatrixMode(GL_MODELVIEW);

glLoadIdentity() ;

}

static void display(void)

{

const double t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;

const double a = t*90.0;

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

glColor3d(1,0,0);

glPushMatrix();

glTranslated(-2.4,1.2,-6);

glRotated(60,1,0,0);

glRotated(a,0,0,1);

glutSolidSphere(1,slices,stacks);

glPopMatrix();

glPushMatrix();

glTranslated(0,1.2,-6);

glRotated(60,1,0,0);

glRotated(a,0,0,1);

glutSolidCone(1,1,slices,stacks);

glPopMatrix();

glPushMatrix();

glTranslated(2.4,1.2,-6);

glRotated(60,1,0,0);

glRotated(a,0,0,1);

glutSolidTorus(0.2,0.8,slices,stacks);

glPopMatrix();

glPushMatrix();

glTranslated(-2.4,-1.2,-6);

glRotated(60,1,0,0);

glRotated(a,0,0,1);

glutWireSphere(1,slices,stacks);

glPopMatrix();

glPushMatrix();

glTranslated(0,-1.2,-6);

glRotated(60,1,0,0);

glRotated(a,0,0,1);

glutWireCone(1,1,slices,stacks);

glPopMatrix();

glPushMatrix();

glTranslated(2.4,-1.2,-6);

glRotated(60,1,0,0);

glRotated(a,0,0,1);

glutWireTorus(0.2,0.8,slices,stacks);

glPopMatrix();

glutSwapBuffers();

}

static void key(unsigned char key, int x, int y)

{

switch (key)

{

case 27 :

case 'q':

exit(0);

break;

case '+':

slices++;

stacks++;

break;

case '-':

if (slices>3 && stacks>3)

{

slices--;

stacks--;

}

break;

}

glutPostRedisplay();

}

static void idle(void)

{

glutPostRedisplay();

}

const GLfloat light_ambient[] = { 0.0f, 0.0f, 0.0f, 1.0f };

const GLfloat light_diffuse[] = { 1.0f, 1.0f, 1.0f, 1.0f };

const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };

const GLfloat light_position[] = { 2.0f, 5.0f, 5.0f, 0.0f };

const GLfloat mat_ambient[] = { 0.7f, 0.7f, 0.7f, 1.0f };

const GLfloat mat_diffuse[] = { 0.8f, 0.8f, 0.8f, 1.0f };

const GLfloat mat_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };

const GLfloat high_shininess[] = { 100.0f };

/* Program entry point */

#include <mmsystem.h>

#include <stdio.h>

#include "CMP3_MCI.h"

CMP3_MCI myMP3;

void timer(int t)

{

glutTimerFunc(2000,timer,0); //2000=2秒再播放

PlaySound("Shot.wav",NULL,SND_ASYNC);

}

int main(int argc, char *argv[])

{

myMP3.Load("MJThriller.mp3");

myMP3.Play();

///PlaySound("BigDog.mp3", NULL, SND_ASYNC);

glutInit(&argc, argv);

glutInitWindowSize(640,480);

glutInitWindowPosition(10,10);

glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

glutCreateWindow("GLUT Shapes");

glutReshapeFunc(resize);

glutDisplayFunc(display);

glutKeyboardFunc(key);

glutIdleFunc(idle);

glutTimerFunc(7000,timer,0);//7000=7秒後播放

glClearColor(1,1,1,1);

glEnable(GL_CULL_FACE);

glCullFace(GL_BACK);

glEnable(GL_DEPTH_TEST);

glDepthFunc(GL_LESS);

glEnable(GL_LIGHT0);

glEnable(GL_NORMALIZE);

glEnable(GL_COLOR_MATERIAL);

glEnable(GL_LIGHTING);

glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient);

glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);

glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);

glLightfv(GL_LIGHT0, GL_POSITION, light_position);

glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient);

glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);

glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);

glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess);

glutMainLoop();

return EXIT_SUCCESS;

}

內插法

#include <Gl/glut.h>
const GLfloat light_ambient[] = { 0.0f, 0.0f, 0.0f, 1.0f };
const GLfloat light_diffuse[] = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat light_position[] = { 2.0f, 5.0f, 5.0f, 0.0f };

const GLfloat mat_ambient[] = { 0.7f, 0.7f, 0.7f, 1.0f };
const GLfloat mat_diffuse[] = { 0.8f, 0.8f, 0.8f, 1.0f };
const GLfloat mat_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat high_shininess[] = { 100.0f };

float angle=0;
float alpha=0;
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glutSolidTeapot(0.3);
glPushMatrix();
glTranslatef(0.4,0,0);
glRotatef(angle,0,0,1);
glTranslatef(0.4,0,0);
glutSolidTeapot(0.3);
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
#include <mmsystem.h>
#include "CMP3_MCI.h"
CMP3_MCI myMP3;
void timer(int t)
{
glutTimerFunc(50,timer,t+1);
alpha = t/100.0;
angle = alpha*90 + (1-alpha)*0;
glutPostRedisplay();
///PlaySound("Shot.wav",NULL,SND_ASYNC);
}

int main(int argc, char *argv[])
{
myMP3.Load("MJThriller.mp3");
myMP3.Play();
///PlaySound("BigDog.mp3", NULL, SND_ASYNC);

glutInit(&argc, argv);
glutInitWindowSize(640,480);
glutInitWindowPosition(10,10);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

glutCreateWindow("GLUT Shapes");

glutDisplayFunc(display);
glutTimerFunc(1000,timer,0);

glClearColor(1,1,1,1);

glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);

glEnable(GL_LIGHT0);
glEnable(GL_NORMALIZE);
glEnable(GL_COLOR_MATERIAL);
glEnable(GL_LIGHTING);

glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient);
glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);
glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);
glLightfv(GL_LIGHT0, GL_POSITION, light_position);

glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient);
glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);
glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess);

glutMainLoop();

return EXIT_SUCCESS;

}

1.MP3播放

變更Project中的cbp檔，把bin改成 .