week15
從https://jsyeh.org/3dcg10/下載data和win32解壓縮後把data裡面的data複製進windows資料夾，然後開啟Projection.exe
在main函式前加入motion函式
float eyeX = 0,eyeY = 0;
void motion(int x,int y)///加入motion函式
{
eyeX = 3*(x-320)/320.0;///算出eyeX座標
eyeY = 3*(240-y)/240.0;///算出eyeY座標
glLoadIdentity();///還原最一開始開始的矩陣
gluLookAt(eyeX,eyeY,3, 0,0,-6, 0,1,0);
///eye位置 ///中間主角 ///up向量
glutPostRedisplay();///重畫畫面
}
在main函式中加入glutMotionFunc(motion);
可以轉視角
static void resize(int width, int height)
{
const float ar = (float) width / (float) height; ///長寬比
glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION); ///切換成投引矩陣
glLoadIdentity(); ///設成單位矩陣
///glFrustum(-ar, ar, -1.0, 1.0, 2.0, 100.0); ///註解掉
glOrtho(-ar*3, ar*3, -1.0*3, 1.0*3, 2.0, 100.0); ///垂直投影
glMatrixMode(GL_MODELVIEW); /// 切換成modle view矩陣
glLoadIdentity() ; ///設成單位矩陣
}
static void resize(int width, int height)
{
const float ar = (float) width / (float) height; ///長寬比
glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION); ///切換成投引矩陣
glLoadIdentity(); ///設成單位矩陣
///glFrustum(-ar, ar, -1.0, 1.0, 2.0, 100.0); ///註解掉
///glOrtho(-ar*3, ar*3, -1.0*3, 1.0*3, 2.0, 100.0); ///垂直投影 ///註解掉
gluPerspective(60, ar, 0.01, 1000); ///透視投影
glMatrixMode(GL_MODELVIEW); /// 切換成modle view矩陣
glLoadIdentity() ; ///設成單位矩陣
}
week15-3_gluPerspective_gluLookAt
#include <GL/glut.h>
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glutSolidTeapot(0.3);
glutSwapBuffers();
}
void motion(int x,int y)
{
glLoadIdentity();
float eyeX = (x-150)/150.0,eyeY = (150-y)/150.0;
gluLookAt(eyeX,eyeY,1, 0,0,0, 0,1,0);
glutPostRedisplay();
}
int main(int argc,char** argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week15");
glutMotionFunc(motion);
glutDisplayFunc(display);
glutMainLoop();
}
#include <GL/glut.h>
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glutSolidTeapot(0.3);
glutSwapBuffers();
}
void motion(int x,int y)
{
glLoadIdentity();
float eyeX = (x-150)/150.0,eyeY = (150-y)/150.0;
gluLookAt(eyeX,eyeY,1, 0,0,0, 0,1,0);
glutPostRedisplay();
}
void reshape(int w,int h)
{
float ar = w / (float) h;
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(60, ar, 0.01, 1000);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(0,0,1, 0,0,0, 0,1,0);
}
int main(int argc,char** argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week15");
glutReshapeFunc(reshape);
glutMotionFunc(motion);
glutDisplayFunc(display);
glutMainLoop();
}
Final_Project
#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 = 3;
float teapotX = 0, teapotY = 0;
float angle[20]={};
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/right_arm.obj");
left_arm = glmReadOBJ("model/right_hand.obj");
}
glPushMatrix();
glScalef(0.3,0.3,0.3);
///glTranslatef(teapotX,teapotY,0);
if(ID==0) glColor3f(1,0,0);
else glColor3f(1,1,1);
if(show[0]) glmDraw(head, GLM_MATERIAL);
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[2],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(-1.959999,+0.080000,0);
glRotatef(angle[3],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;
teapotY -= (y-oldY)/150.0;
printf("glTranslatef(%f,%f,0);\n",teapotX,teapotY);
angle[ID] += x-oldX;
oldX = x;
oldY = y;
glutPostRedisplay();
}
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week15");
glutMotionFunc(motion);
glutDisplayFunc(display);
glutKeyboardFunc(keyboard);
glutMouseFunc(mouse);
glutMainLoop();
}
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