How was Clown 2 filmed?

Holographic photography technology shooting. According to Douban query, the clown with broken soul was shot by holographic photography. The Clown with Broken Soul tells that an evil force awakens the killing clown Art. On Halloween, the killing clown Art returns to Miles. His aim is to catch a young girl and her brother and kill them on Halloween night. Art clowns kill people without blinking an eye, and more and more victims. While fighting for survival, the two brothers and sisters also try to explore the motive behind killing Art the clown.