week14
step01-1
安裝git
開啟2023graphicsb
開新的GLUT專案 week14-timer
放在 2023graphicsb
輸入程式碼
#include <GL/glut.h>
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glutSolidTeapot( 0.3 );
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week14");
glutDisplayFunc(display);
glutMainLoop();
}
#include <GL/glut.h>
float angle = 0;
void timer(int t)
{
glutTimerFunc(500, timer, t+1);
angle +=90;
glutPostRedisplay();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(angle, 0, 0, 1);
glutSolidTeapot( 0.3 );
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week14");
glutTimerFunc(3000, timer, 0);
glutDisplayFunc(display);
glutMainLoop();
}
step01-2
開新的專案week14-2_timer_play
按任意鍵在play
複製week14-timer的程式碼
並修改程式碼
程式碼
#include <GL/glut.h>
float angle = 0;
void timer(int t)
{
glutTimerFunc(33, timer, t+1);
angle +=3;
glutPostRedisplay();
}
void keyboard(unsigned char key , int x, int y)
{
glutTimerFunc(0, timer, 0);
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(angle, 0, 0, 1);
glutSolidTeapot( 0.3 );
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week14");
glutKeyboardFunc(keyboard);
///glutTimerFunc(3000, timer, 0);
glutDisplayFunc(display);
glutMainLoop();
}
step02-1
打開excel
內插動作
輸入數值
先把檔案被分到雲端
step02-2
開新的專案 week14-3_timer_alpha_interpolation
alpha內插，用mouse控制，開始的位置、結束的位置，在play
複製 week14-2_timer_play 的程式碼
修改程式碼
#include <GL/glut.h>
float angle = 0, newAngle = 0, oldAngle = 0;
float oldX = 0;
void timer(int t)
{
if(t<100) glutTimerFunc(33, timer, t+1);
float alpha = t/100.0;
angle = alpha*newAngle + (1-alpha)*oldAngle;
glutPostRedisplay();
}
void keyboard(unsigned char key , int x, int y)
{
glutTimerFunc(0, timer, 0);
}
void mouse(int button, int state, int x, int y)
{
if(state==GLUT_DOWN) oldAngle = angle;
if(state==GLUT_UP) newAngle = angle;
oldX = x;
glutPostRedisplay();
}
void motion(int x, int y)
{
angle += x-oldX;
oldX = x;
glutPostRedisplay();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(angle, 0, 0, 1);
glutSolidTeapot( 0.3 );
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week14");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc(keyboard);
///glutTimerFunc(3000, timer, 0);
glutDisplayFunc(display);
glutMainLoop();
}
step03-1
打開final_project
秀關節顏色
修改程式碼
#include <stdio.h>
#include <GL/glut.h>
#include "glm.h"
GLMmodel * head = NULL;
GLMmodel * body = NULL;
GLMmodel * rightarm = NULL;
GLMmodel * righthand = NULL;
int show[4] = {1,1,1,1};
int ID = 2;
float teapotX = 0, teapotY = 0;
FILE * fout = NULL;
FILE * fin = NULL;
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();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
if(head==NULL){
head = glmReadOBJ("model/head.obj");
body = glmReadOBJ("model/body.obj");
rightarm = glmReadOBJ("model/rightarm.obj");
righthand = glmReadOBJ("model/righthand.obj");
///glmUnitize(head);
}
glPushMatrix();
glScalef(0.3, 0.3, 0.3);
glPushMatrix();
glTranslatef(teapotX, teapotY, 0);
if(ID==0) glColor3f(1,0,0);
else glColor3f(1,1,1);
if (show[0]) glmDraw(head, GLM_MATERIAL);
glPopMatrix();
if(ID==1) glColor3f(1,0,0);
else glColor3f(1,1,1);
if (show[1]) glmDraw(body, GLM_MATERIAL);
if(ID==2) glColor3f(1,0,0);
else glColor3f(1,1,1);
if (show[2]) glmDraw(rightarm, GLM_MATERIAL);
if(ID==3) glColor3f(1,0,0);
else glColor3f(1,1,1);
if (show[3]) glmDraw(righthand, GLM_MATERIAL);
glPopMatrix();
glutSwapBuffers();
}
int oldX=0, oldY=0;
void mouse(int button,int state,int x,int y)
{
if(state==GLUT_DOWN){
oldX = x;
oldY = y;
}
}
void motion(int x, int y){
teapotX += (x - oldX)/150.0;
teapotY -= (y - oldY)/150.0;
oldX = x;
oldY = y;
glutPostRedisplay();
}
int main(int argc,char** argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week13");
glutMotionFunc(motion);
glutDisplayFunc(display);
glutKeyboardFunc(keyboard);
glutMouseFunc(mouse);
glutMainLoop();
}
step03-2
修改程式碼
讓關節轉動
#include <stdio.h>
#include <GL/glut.h>
#include "glm.h"
GLMmodel * head = NULL;
GLMmodel * body = NULL;
GLMmodel * rightarm = NULL;
GLMmodel * righthand = NULL;
int show[4] = {1,1,1,1};
int ID = 2;
int angle = 0;
float teapotX = 0, teapotY = 0;
FILE * fout = NULL;
FILE * fin = NULL;
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();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
if(head==NULL){
head = glmReadOBJ("model/head.obj");
body = glmReadOBJ("model/body.obj");
rightarm = glmReadOBJ("model/rightarm.obj");
righthand = glmReadOBJ("model/righthand.obj");
///glmUnitize(head);
}
glPushMatrix();
glScalef(0.3, 0.3, 0.3);
glPushMatrix();
//glTranslatef(teapotX, teapotY, 0);
if(ID==0) glColor3f(1,0,0);
else glColor3f(1,1,1);
if (show[0]) glmDraw(head, GLM_MATERIAL);
glPopMatrix();
if(ID==1) glColor3f(1,0,0);
else glColor3f(1,1,1);
if (show[1]) glmDraw(body, GLM_MATERIAL);
glPushMatrix();
///glTranslatef(teapotX, teapotY, 0);
glTranslatef(+1.300000, +0.540000, 0);
glRotatef(angle, 0, 0, 1);
glTranslatef(-1.300000, -0.540000, 0);
if(ID==2) glColor3f(1,0,0);
else glColor3f(1,1,1);
if (show[2]) glmDraw(rightarm, GLM_MATERIAL);
glPushMatrix();
///glTranslatef(teapotX, teapotY, 0);
glTranslatef(1.939999, 0.020000, 0);
glRotatef(angle, 0, 0, 1);
glTranslatef(-1.939999, -0.020000, 0);
if(ID==3) glColor3f(1,0,0);
else glColor3f(1,1,1);
if (show[3]) glmDraw(righthand, GLM_MATERIAL);
glPopMatrix();
glPopMatrix();
glPopMatrix();
glColor3f(0,1,0);
glutSolidTeapot( 0.02 );
glutSwapBuffers();
}
int oldX=0, oldY=0;
void mouse(int button,int state,int x,int y)
{
if(state==GLUT_DOWN){
oldX = x;
oldY = y;
}
}
void motion(int x, int y){
teapotX += (x - oldX)/150.0*3;
teapotY -= (y - oldY)/150.0*3;
printf("glTranslatef(%f, %f, 0);\n", teapotX, teapotY);
angle += x-oldX;
oldX = x;
oldY = y;
glutPostRedisplay();
}
int main(int argc,char** argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week14");
glutMotionFunc(motion);
glutDisplayFunc(display);
glutKeyboardFunc(keyboard);
glutMouseFunc(mouse);
glutMainLoop();
}
擷取最後一行程式碼
作為關節的旋轉中心
然後貼上 glTranslatef
然後在第一個glTranslatef的正負號顛倒
沒有留言:
張貼留言