trackball 153 samples/tokoi/sprite1/main.php glMultMatrixd(trackball::Rotation()); trackball 174 samples/tokoi/sprite1/main.php trackball::Region($w, $h); trackball 200 samples/tokoi/sprite1/main.php trackball::Start($x, $y); trackball 204 samples/tokoi/sprite1/main.php trackball::Stop($x, $y); trackball 218 samples/tokoi/sprite1/main.php trackball::Motion($x, $y); trackball 128 samples/tokoi/sprite1/main_yoya.php glMultMatrixd(trackball::Rotation()); trackball 156 samples/tokoi/sprite1/main_yoya.php trackball::Region($w, $h); trackball 182 samples/tokoi/sprite1/main_yoya.php trackball::Start($x, $y); trackball 186 samples/tokoi/sprite1/main_yoya.php trackball::Stop($x, $y); trackball 200 samples/tokoi/sprite1/main_yoya.php trackball::Motion($x, $y);