🗽Week08貼圖
✨下載檔案 設定3個東西
Settings>>Compiler
🔺Search directories>> Compiler >>add C:\OpenCV2.1\include
🔺Linker Settings>>add cv210 cxcore210 highgui210
____________________________________________________________________
✨貼圖3行程式
🧷程式
#include <opencv/highgui.h>
int main()
{
IplImage*img=cvLoadImage("puipui.jpg");///放下載的圖片
cvShowImage("week08-1讀圖 秀圖",img);///視窗名
cvWaitKey(0);///0要等很久
}
_____________________________________________________________________
✨GLUT專案執行貼圖
🔺把圖檔放到freeglut\bin裡
🔺完成
________________________________________________________________________✨將圖片貼到茶壺上
🧷程式
#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 <GL/glut.h>
void init()
{
IplImage * img = cvLoadImage("puipui.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 display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glBegin(GL_POLYGON);///4個貼圖座標 4個頂點
glTexCoord2f(0,1); glVertex3f(-1,-1,0);
glTexCoord2f(1,1); glVertex3f(+1,-1,0);
glTexCoord2f(1,0); glVertex3f(+1,+1,0);
glTexCoord2f(0,0); glVertex3f(-1,+1,0);
glEnd();
glutSolidTeapot(0.3);
glutSwapBuffers();
}
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week08 texture");
glutDisplayFunc(display);
glutIdleFunc(display);///TODO:
glEnable(GL_DEPTH_TEST);///TODO: 有3D的深度測試(前面會蓋掉後面)
init();///上面把OpenGL都設好後, 才設定 OpenCV 的貼圖到 OpenGL上面
glutMainLoop();
}
______________________________________________________
✨將圖片貼到球體上 變成地球
#include <opencv/highgui.h>
#include <opencv/cv.h>
#include <GL/glut.h>
GLUquadric * quad;///TODO: Quad球體
void init()
{
IplImage * img = cvLoadImage("earth.jpg");
cvCvtColor(img,img, CV_BGR2RGB);
glEnable(GL_TEXTURE_2D);
GLuint id;
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);
quad = gluNewQuadric();///TODO: Quad
}
float angle=0;
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();///自動轉很帥///TODO:
glRotatef(90, 1,0,0);///TODO:
glRotatef(angle, 0,0,1);///自動轉很帥///TODO:
gluQuadricTexture(quad, 1);///TODO:
gluSphere(quad, 0.5, 30, 30);///glutSolidTeapot(0.3);///TODO:
glPopMatrix();///自動轉很帥///TODO:
glutSwapBuffers();
angle++;///TODO:
}
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week07 texture");
glutDisplayFunc(display);
glutIdleFunc(display);
glEnable(GL_DEPTH_TEST);
init();
glutMainLoop();
}
_________________________________________________
沒有留言:
張貼留言