(1)作業Q&A
(2)複習 : 貼圖
(3)複習 : 打光
(4)複習 : 模型
1.第一節複習貼圖如何貼上:
#include <opencv/highgui.h> ///for cvCvtColor()
#include <opencv/cv.h>
#include <GL/glut.h> ///3D glut
#include <stdio.h>
float angle=0; ///自動轉很帥
GLUquadric * quad;
void display()
{ glEnable(GL_DEPTH_TEST); ///要啟動 Detph Test 深度值的測試,3D顯示才正確
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();///自動轉很帥
glRotatef(90, 1,0,0);
glRotatef(angle, 0,0,1);///自動轉很帥
gluQuadricTexture(quad, 1);
gluSphere(quad, 0.5, 30, 30);///glutSolidTeapot(0.3);
glPopMatrix();///自動轉很帥
glFlush();
angle+=1;///自動轉很帥
}
void myInit()
{
quad = gluNewQuadric();
IplImage * img = cvLoadImage("marvel.jpg"); ///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);} ///最後一行最難/最重要, 所貼圖影像的資料都設定好
void timer(int t)
{/// 1000 msec 50fps:20msec
glutTimerFunc(20, timer, 0);
//printf("timer now\n");
glutPostRedisplay();
}
int main(int argc, char**argv)
{ glutInit(&argc, argv);
glutCreateWindow("3D");
glutDisplayFunc(display); ///顯示
//glutIdleFunc(display);///自動轉很帥 (閒閒沒事幹, 就重畫)
glutTimerFunc(0, timer, 0);
glutMainLoop();
}
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2.執行，選擇路徑(後兩個)
3. 放在 C:\openCV2.1 並安裝
4.安裝好後再開啟CODEBLOCKS!!
GLUT專案
5.開啟glut專案(檔案位置記得存!!!!!!!!)
7.複製檔案位置
8.複製libfreeglut.a--->改成libglut32.a
9.把GLUT的main.cpp裡的程式全部刪掉，改成
#include <GL/glut.h>
#include <opencv/highgui.h> ///OpenCV High GUI讀圖
///程式碼是對的, 但是沒有設定好include, lib, bin
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glutSolidTeapot( 0.3 );
glutSwapBuffers();
}
GLuint id;
void myInit()
{
glEnable(GL_TEXTURE_2D);
IplImage * img = cvLoadImage("06160531.jpg");
glGenTextures(1, &id );
glBindTexture(GL_TEXTURE_2D, id);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);
}
int main(int argc, char **argv)
{
///IplImage * img = cvLoadImage("06160531.jpg");
///cvShowImage("opencv", img);
///cvWaitKey(0);///等你按按鍵
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);
glutCreateWindow("GLUT");///之後
///建好GLUT視窗,可以開始準備 3D 貼圖 (要在create...MainLoop才能建貼圖)
myInit();///我們的貼圖在這裡
glutDisplayFunc(display);
glutMainLoop();///之前
}
10.在Project 裡選擇 Build options
11. 在search directions 那欄的 complier 新增 C:\OpenCV2.1\include 然後按ok
12. 在search directions 那欄的 linker 新增 C:\OpenCV2.1\lib 然後按ok
13.在Linker Settings那欄新增 cv210 / cxcore210 / highgui210 然後按OK
14.就可以執行了~
15.可以貼很多圖~
#include <GL/glut.h>
#include <opencv/highgui.h> ///OpenCV High GUI讀圖
#include <opencv/cv.h> ///OpenCV cvCvtColor() to convert color
///程式碼是對的, 但是沒有設定好include, lib, bin
GLuint id1, id2, id3;///NOW2
float a=0;
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glBindTexture(GL_TEXTURE_2D, id1);///id1 for background
glBegin(GL_POLYGON);
glTexCoord2f(0, 0); glVertex3f(-1, +1, 0);
glTexCoord2f(0, 1); glVertex3f(-1, -1, 0);
glTexCoord2f(1, 1); glVertex3f(+1, -1, 0);
glTexCoord2f(1, 0); glVertex3f(+1, +1, 0);
glEnd();
glBindTexture(GL_TEXTURE_2D, id3);///id3 for rotating square
glPushMatrix();
glTranslatef(0.5, 0.5, 0);
glRotatef(a++, 0, 0, 1);
glScalef(0.3, 0.3, 0.3);
glBegin(GL_POLYGON);
glTexCoord2f(0, 0); glVertex3f(-1, +1, 0);
glTexCoord2f(0, 1); glVertex3f(-1, -1, 0);
glTexCoord2f(1, 1); glVertex3f(+1, -1, 0);
glTexCoord2f(1, 0); glVertex3f(+1, +1, 0);
glEnd();
glPopMatrix();
glBindTexture(GL_TEXTURE_2D, id2);///id2 for teapot
glutSolidTeapot( 0.3 );
glutSwapBuffers();
}
///void myInit()
GLuint myTexture(char * filename)
{
IplImage * img = cvLoadImage(filename); ///NOW OpenCV
cvCvtColor(img, img, CV_BGR2RGB);///convert color ///NOW OpenCV
GLuint id;
glEnable(GL_TEXTURE_2D);
glGenTextures(1, &id );
glBindTexture(GL_TEXTURE_2D, id);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);
return id;
}
int main(int argc, char **argv)
{
///IplImage * img = cvLoadImage("marvel.jpg");
///cvShowImage("opencv", img);
///cvWaitKey(0);///等你按按鍵
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);
glutCreateWindow("GLUT");///之後
///建好GLUT視窗,可以開始準備 3D 貼圖 (要在create...MainLoop才能建貼圖)
id1 = myTexture("06160531.jpg"); ///myInit();///我們的貼圖在這裡
id2 = myTexture("06160531-1.jpg");
id3 = myTexture("06160531-2.jpg");
glutDisplayFunc(display);
glutIdleFunc(display);
glutMainLoop();///之前
}
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