Beyond Ray-Casting: Evaluating Controller, Free-Hand, and Virtual-Touch Modalities for Immersive Text Entry. - Md. Tanvir Hossain; Mohd Ruhul Ameen; Akif Islam; Md. Omar Faruqe; Mahboob Qaosar; A. F. M. Mahbubur Rahman; Sanjoy Kumar Chakravarty; M. Khademul Islam Molla (CoRR, 2026)