這周我們一開始先複習上周教的貼圖
先把freeglut和OpenCV安裝好
打開Codeblocks之後
settings-compiler-Search directories-compiler add C:\OpenCV2.1\include
settings-compiler-Search directories-linker add C:\OpenCV2.1\lib
settings-compiler-Linker Settings add cv210、cxcore210、highgui210
把上週的程式碼複製過來並執行
然後我們要利用貼圖座標和頂點座標
來做出背景
然後我們用GLUquadric做出一個圓形的貼圖
再來加上Rotate就可以讓它旋轉
然後我們要改變他的旋轉方向
加上
glRotatef(90,1,0,0);
glEnable(GL_DEPTH_TEST);
這兩行程式碼
#include <GL/glut.h>
#include <opencv/highgui.h>
#include <opencv/cv.h>
#include "glm.h"
///GLUquadric * sphere = NULL;
GLModel * pmodel = NULL;
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;
}
float angle=0;
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(angle,0,0,1);
if(pmodel==NULL){
pmodel * glmReadOBJ("data/Gundam");
glmUnitize(pmodel);
glmFacetNormals(pmodel);
glmVertextNormals(pmodel,90);
}
glmDraw(pmodel,GLM_TEXTURE);
glPopMatrix();
glutSwapBuffers();
angle+=1;
}
int main(int argc,char** argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week10");
glEnable(GL_DEPTH_TEST);
glutDisplayFunc(display);
myTexture("data/Diffuse.jpg");
glutIdleFunc(display);
///sphere=gluNewQuadric();
glutMainLoop();
}
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