- glGenTextures(1,@backbuffer);
- glBindTexture(GL_TEXTURE_2D,backbuffer);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, imwidth, imheight, 0, GL_RGBA,GL_UNSIGNED_BYTE,nil);