Ключевые слова: 3d, audience, back, chair, children, cinema, classroom, conference, couple, crowd, education, event, festival, friends, full house, fun, girls, group, hall, happy, learning, lecture, many, meeting, movie, movie house, movie theater, parents, party, people, performance, person, play, playhouse, presentation, public, room, school, seat, seating, seminar, show, sitting, speaker, theater, training, watching, woman, young,