真 week15

week15

1.進入https://jsyeh.org/3dcg10/網頁

下載win32 和data，將win32和data解壓縮後

將data放入window

開啟Transformation.exe檔

下載git ，把上禮拜的檔案雲端下載下來。

先下載git，把之前的檔案雲端下載下來，建立一個project專案。

float eyeX = 0, eyeY = 0;

void motion(int x, int y){

    eyeX = 3*(x-320)/320.0;

    eyeY = 3*(240-y)/240.0;

    glLoadIdentity();

    gluLookAt(eyeX, eyeY, 3, 0, 0, -6, 0, 1, 0);

    glutPostRedisplay();

}

    glutMotionFunc(motion);

新增程式碼    glOrtho(-ar*3, ar*3, -1.0*3, 1.0*3, 2.0, 100.0);

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

就會有一個對稱的圖案

更改程式碼

#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();

}

完整程式碼

#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[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/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[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(teapotX,teapotY,0);

                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*3;

    teapotY -= (y-oldY)/150.0*3;

    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("week13");

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMainLoop();

}