1.地圖茶壺
#include <opencv/highgui.h>
#include <opencv/cv.h>
#include <GL/glut.h>
int myTexture(char * filename){
IplImage * img = cvLoadImage(filename);
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);
return id;
}
void display(){
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glutSolidTeapot( 0.3 );
glutSwapBuffers();
}
int main(int argc, char**argv){
glutInit( &argc, argv );
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week09 texture");
glutDisplayFunc(display);
myTexture("earth.jpg");
glutMainLoop();
}
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