Week14
1.先下載git，把之前的檔案雲端下載下來，建立一個project專案，
2.新增程式碼
#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();
}
3.新增程式碼
void keyboard(unsigned char key, int x,int y)
{
glutTimerFunc(0, timer, 0);
}
4.更改程式碼如下
#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();
}
5.把final裡面的cbp檔在codeblocks中開啟，兩個檔案算成功，更改程式碼如下
#include <stdio.h>
#include <GL/glut.h>
#include "glm.h"
GLMmodel * head = NULL;
GLMmodel * body = NULL;
GLMmodel * right_arm = NULL;
GLMmodel * left_arm = 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");
right_arm = glmReadOBJ("model/uparmR.obj");
left_arm = glmReadOBJ("model/uparmL.obj");
}
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(right_arm, GLM_MATERIAL);
if(ID==3) glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[3]) glmDraw(left_arm, 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();
}
執行結果如下圖
6.修改程式碼
#include <stdio.h>
#include <GL/glut.h>
#include "glm.h"
GLMmodel * head = NULL;
GLMmodel * body = NULL;
GLMmodel * right_arm = NULL;
GLMmodel * left_arm = NULL;
int show[4] ={1,1,1,1};
int ID = 2;
float teapotX = 0, teapotY = 0;
float angle = 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");
right_arm = glmReadOBJ("model/uparmR.obj");
left_arm = glmReadOBJ("model/lowarmR.obj");
}
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(-1.360000, +0.360000, 0);
glRotatef(angle, 0, 0, 1);
glTranslatef(1.360000, -0.360000, 0);
if(ID==2) glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[2]) glmDraw(right_arm, GLM_MATERIAL);
glPushMatrix();
///glTranslatef(teapotX,teapotY,0);
glTranslatef(-1.959999, +0.080000, 0);
glRotatef(angle, 0, 0, 1);
glTranslatef(1.959999, -0.080000, 0);
if(ID==3) glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[3]) glmDraw(left_arm, 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("week13");
glutMotionFunc(motion);
glutDisplayFunc(display);
glutKeyboardFunc(keyboard);
glutMouseFunc(mouse);
glutMainLoop();
}
成功如下圖
7.
8.
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