week17
2022電腦圖學 Computer Graphics 授課教師: 葉正聖 銘傳大學資訊傳播工程系 每週主題: 程式環境、點線面顏色、移動/旋轉/縮放與矩陣(Matrix)、階層性關節轉動(T-R-T)、做出機器人、打光、貼圖、glu/glut函式、鍵盤、滑鼠、計時器(timer)、讀入3D模型、粒子系統、聲音、特效、投影矩陣、攝影機與運鏡、機器人2.0、期末作品
2022年6月14日 星期二
2022年6月7日 星期二
week16電腦圖學
week16
1.alpha內插公式angle=alpha*新+(1-alpha)*舊,這樣才能讓動畫跑得更加順暢,並且也用excel示範了一次
2.修改上週的week15_angles_TRT_again
#include <GL/glut.h>
#include <stdio.h>
float angle[20],oldX=0;
int angleID=0;
FILE * fout=NULL, * fin = NULL;
void myWrite()
{///每呼叫一次myWrite
if(fout == NULL)fout=fopen("file.txt","w+");
for(int i = 0;i<20;i++)
{
printf("%.1f ",angle[i]);///小黑印出來
fprintf(fout,"%.1f ",angle[i]);///檔案印出來
}///這裡老師沒有fclose
printf("\n");///小黑印出跳行
fprintf(fout,"\n");///檔案跳行
}
float NewAngle[20],OldAngle[20];
void myRead()
{
if(fout!=NULL){fclose(fout); fout=NULL;}
if(fin==NULL) fin=fopen("file.txt","r");
for(int i=0;i<20;i++)
{
OldAngle[i] = NewAngle[i];
fscanf(fin,"%f",&NewAngle[i]);
/// fscanf(fin,"%f",&angle[i]);
}
glutPostRedisplay();///重劃畫面
}
void myInterpolate(float alpha){
for(int i=0;i<20;i++){
angle[i] = alpha * NewAngle[i] + (1-alpha) * OldAngle[i];
}
}
int t=0;
void keyboard(unsigned char key,int x,int y)
{
if(key=='p'){///play
if(t%30==0)myRead();
myInterpolate((t%30)/30.0);
glutPostRedisplay();
t++;
}
if(key=='s') myWrite();///調好動作才save存檔
if(key=='r') myRead();
if(key=='0') angleID=0;
if(key=='1') angleID=1;
if(key=='2') angleID=2;
if(key=='3') angleID=3;
}
void mouse(int button,int state,int x,int y)
{
oldX=x;
}
void motion(int x,int y)
{
angle[angleID]+=(x-oldX);
///myWrite();
oldX=x;
glutPostRedisplay();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);
glRectf(0.3,0.5,-0.3,-0.5);
glPushMatrix();
glTranslatef(0.3,0.4,0);
glRotatef(angle[0],0,0,1);
glTranslatef(-0.3,-0.4,0);
glColor3f(1,0,0);
glRectf(0.3,0.5,0.7,0.3);
glPushMatrix();
glTranslatef(0.7,0.4,0);
glRotatef(angle[1],0,0,1);
glTranslatef(-0.7,-0.4,0);
glColor3f(0,1,0);
glRectf(0.7,0.5,1.0,0.3);
glPopMatrix();
glPopMatrix();
glPushMatrix();
glTranslatef(-0.3,0.4,0);
glRotatef(angle[2],0,0,1);
glTranslatef(0.3,-0.4,0);
glColor3f(1,0,0);
glRectf(-0.3,0.5,-0.7,0.3);
glPushMatrix();
glTranslatef(-0.7,0.4,0);
glRotatef(angle[3],0,0,1);
glTranslatef(0.7,-0.4,0);
glColor3f(0,1,0);
glRectf(-0.7,0.5,-1.0,0.3);
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char *argv[])
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week15_angles_TRT_again");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc(keyboard);
glutDisplayFunc(display);
glutMainLoop();
}
4.修改上週的week15_angles_TRT_again增加橘色的
2022年5月31日 星期二
week15電腦圖學
4z week15
1.開CodeBlocks->建立新的Empty File week15-1_PlaySound.cpp 並在在settings->compiler加入winmm
#include <windows.h>
#include <stdio.h>
int main()
{
printf("PlaySound()\n");
PlaySound("07042111.wav",NULL,SND_SYNC);
printf("PlaySound()之後\n");
}
2..開 CodeBlocks/empty file-->week15_SND_SNTC_ASNYC.cpp
直接播
#include <windows.h>
#include <stdio.h>
int main()
{
PlaySound("do.wav",NULL,SND_SYNC);///ASYNC不等待
PlaySound("re.wav",NULL,SND_SYNC);
PlaySound("mi.wav",NULL,SND_SYNC);
}
等待
#include <windows.h>
#include <stdio.h>
int main()
{
PlaySound("07042111.wav",NULL,SND_ASYNC);///ASYNC不等待
while(1){
printf("請輸入數字: ");
int N;
scanf("%d",&N);
if (N==1) PlaySound("do.wav",NULL,SND_ASYNC);
if (N==2) PlaySound("re.wav",NULL,SND_ASYNC);
if (N==3) PlaySound("mi.wav",NULL,SND_ASYNC);
}
}
3.開 CodeBlocks/empty file-->week15_MP3.cpp並到moodle 下載CMP3_MCI.h
#include <stdio.h>
#include "CMP3_MCI.h"
CMP3_MCI mp3;
nt main()
{
mp3.Load("009160986.mp3");
mp3.Play();
printf("隨便等你輸入數字,程式就卡住了 : ");
int N;///為了程式不要結束
scanf("%d",&N);
}
4.myWrite()會寫一行,myRead()會讀一行,然後要在keyboard()裡面新增動作s,當按下s後會儲存當前手臂的位置
#include <GL/glut.h>
#include <stdio.h>
float angle[20],oldX=0;
int angleID=0;
FILE * fout = NULL, * fin = NULL;
void myWrite(){
if(fout == NULL) fout = fopen("file.txt", "w+");
for(int i=0 ; i<20 ; i++){
printf(" %.1f ", angle[i]);
fprintf(fout, " %.1f ",angle[i]);
}
printf("\n");
fprintf(fout,"\n");
}
void myread(){
if(fout != NULL){ fclose(fout); fout=NULL; }
if(fin == NULL) fin = fopen("file.txt", "r");
for(int i=0 ; i<20 ; i++){
fscanf(fin, "%f",&angle[i]);
}
glutPostRedisplay();
}
void mouse(int Button, int state, int x, int y){
oldX= x;
}
void keyboard (unsigned char key,int x,int y){
if(key=='s') myWrite(); ///調好動作再存檔
if(key=='r') myread();
if(key=='0') angleID=0;
if(key=='1') angleID=1;
if(key=='2') angleID=2;
if(key=='3') angleID=3;
}
void motion(int x,int y){
angle[angleID] += (x-oldX);
///myWrite();
oldX = x;
glutPostRedisplay();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);
glRectf(0.3,0.5,-0.3,-0.5);
glPushMatrix();
glTranslatef(0.3,0.4,0);
glRotatef(angle[0],0,0,1);
glTranslatef(-0.3,-0.4,0);
glColor3f(1,0,0);
glRectf(0.3,0.5,0.7,0.3);
glPushMatrix();
glTranslatef(0.7,0.4,0);
glRotatef(angle[1],0,0,1);
glTranslatef(-0.7,-0.4,0);
glColor3f(0,1,0);
glRectf(0.7,0.5,1,0.3);
glPopMatrix();
glPopMatrix();
glPushMatrix();
glTranslatef(-0.3,0.4,0);
glRotatef(angle[2],0,0,1);
glTranslatef(0.3,-0.4,0);
glColor3f(1,0,0);
glRectf(-0.3,0.5,-0.7,0.3);
glPushMatrix();
glTranslatef(-0.7,0.4,0);
glRotatef(angle[3],0,0,1);
glTranslatef(0.7,-0.4,0);
glColor3f(0,1,0);
glRectf(-0.7,0.5,-1,0.3);
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit( &argc, argv );
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
///glutInitWindowSize(600,600);
glutCreateWindow("week15-1_angles_TRT_again");
glutKeyboardFunc(keyboard);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutDisplayFunc(display);
glutMainLoop();
}
讓機器人擺動作
1.需要3D Model (glm.h,glm.cpp .obj....)
2.需要切割模型分別讀入
3.使用TRT程式轉動分割後的模型keboard() 切換關節, mouse motion()用滑鼠轉動關節
4.建立一個新GLUT專案 week15_hw_gundam_parts
5.用Notepad++將工作目錄的路徑改成 "."
VERY BEAUTIFUL, VERY POWERFUL
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