toto_week16

 week16

為防止當機，所以先下載git

把2023graphicsb放在桌面上

開心專案，命名為week16_all

撰寫程式

#include <GL/glut.h>

float teapotX = 0, teapotY = 0, angle = 0, oldX = 0, oldY = 0;

void mouse(int button, int state, int x, int y) {

    oldX = x;

    oldY = y;

}

void motion(int x, int y) {

    //teapotX = (x-150)/150.0;

    angle += x - oldX;//teapotY = (150-y)/150.0;

    oldX = x;

    glutPostRedisplay();

}

void display() {

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glRotatef(angle, 0, 0, 1); //glTranslatef(teapotX, teapotY, 0);

        glutSolidTeapot( 0.3 );

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc, char** argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week16");

    glutDisplayFunc(display);

    glutMotionFunc(motion);

    glutMouseFunc(mouse);

    glutMainLoop();

}

使模型可以轉動，為之後的鋼但模型做好準備

#include <stdio.h>

#include <GL/glut.h>

float teapotX = 0, teapotY = 0, angle = 0, oldX = 0, oldY = 0;

void mouse(int button, int state, int x, int y) {

    oldX = x;

    oldY = y;

}

void motion(int x, int y) {

    teapotX = (x-150)/150.0;

    teapotY = (150-y)/150.0;

    angle += x - oldX;

    oldX = x;

    glutPostRedisplay();

    printf("  glTranslatef( %.2f, %.2f, 0 ); \n", teapotX, teapotY );

}

void display() {

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glColor3f(1,1,1);

        //glTranslatef( 0.42, -0.06, 0 );

        glRotatef(angle, 0, 0, 1);

        glTranslatef( 0.42, -0.06, 0 );//glTranslatef(teapotX, teapotY, 0);

        glutSolidTeapot( 0.3 );

    glPopMatrix();

    glColor3f(0,1,0);

    glutSolidTeapot( 0.02 );

    glutSwapBuffers();

}

int main(int argc, char** argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week16");

    glutDisplayFunc(display);

    glutMotionFunc(motion);

    glutMouseFunc(mouse);

    glutMainLoop();

}

#include <opencv/highgui.h> ///使用 OpenCV 2.1 比較簡單, 只要用 High GUI 即可

#include <opencv/cv.h>

#include <stdio.h>

#include <GL/glut.h>

#include "glm.h"

GLMmodel * head = NULL;

GLMmodel * body = NULL; ///GLMmodel * gundam = NULL;

float teapotX = 0, teapotY = 0, angle = 0, oldX = 0, oldY = 0;

int myTexture(char * filename)

{

    IplImage * img = cvLoadImage(filename); ///OpenCV讀圖

    cvCvtColor(img,img, CV_BGR2RGB); ///OpenCV轉色彩 (需要cv.h)

    glEnable(GL_TEXTURE_2D); ///1. 開啟貼圖功能

    GLuint id; ///準備一個 unsigned int 整數, 叫 貼圖ID

    glGenTextures(1, &id); /// 產生Generate 貼圖ID

    glBindTexture(GL_TEXTURE_2D, id); ///綁定bind 貼圖ID

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); /// 貼圖參數, 超過包裝的範圖T, 就重覆貼圖

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); /// 貼圖參數, 超過包裝的範圖S, 就重覆貼圖

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); /// 貼圖參數, 放大時的內插, 用最近點

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); /// 貼圖參數, 縮小時的內插, 用最近點

    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);

    return id;

}

void mouse(int button, int state, int x, int y) {

    oldX = x;

    oldY = y;

}

void motion(int x, int y) {

    teapotX += (x - oldX) / 150.0 * 10; ///teapotX = (x-150)/150.0;

    teapotY += (oldY - y) / 150.0 * 10; ///teapotY = (150-y)/150.0;

    angle += x - oldX;

    oldX = x;

    oldY = y;

    glutPostRedisplay();

    printf("  glTranslatef( %.2f, %.2f, 0 ); \n", teapotX, teapotY );

}

void display() {

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glScalef(1.6, 1.6, 1.6);

        glTranslatef(0, -0.5, 0);///往下一半

        glPushMatrix();

            glColor3f(1,1,1);

            glScalef(0.04, 0.04, 0.04);

            ///glRotatef(angle, 0, 1, 0);

            glmDraw(body, GLM_MATERIAL|GLM_TEXTURE);///glmDraw(gundam, GLM_MATERIAL|GLM_TEXTURE);

            glPushMatrix();

                glTranslatef(teapotX, teapotY, 0);

                glmDraw(head, GLM_MATERIAL|GLM_TEXTURE);

            glPopMatrix();

        glPopMatrix();

        glColor3f(0,1,0);

        glutSolidTeapot( 0.02 );

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc, char** argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week16");

    glutDisplayFunc(display);

    glutMotionFunc(motion);

    glutMouseFunc(mouse);

    head = glmReadOBJ("model/head.obj");

    body = glmReadOBJ("model/body.obj"); ///gundam = glmReadOBJ("model/Gundam.obj");

    myTexture("model/Diffuse.jpg");

    glEnable(GL_DEPTH_TEST);

    glutMainLoop();

}