> Jeez, is that a hologram?
No, that’s Hatsune Miku. A fellow Freeper turned me onto her in a thread similar to this one many years ago. Her stage performances use industrial video projectors into a rear projection film coated with nanolenses called a Dilad screen. The cost on each projector is in the 6 figure range and the screen is priced at around $150 per sq.ft.
Technically the effect looks like a hologram but it does not involve the interference of coherent light nor is it a form of Pepper’s Ghost. I have heard that it looks way more impressive live than it does in video.
One other form of projection was used at Miku’s fifth anniversary concert at Yokohama harbor. It used huge video projectors (possibly converted searchlights fired into LCD panels) and lasers beaming into a three dimensional water screen. Again the video is said not to do the live view justice.
Here’s a link to a concert from Shanghai in 2016. If memory serves it sold out in just a few hours and seats were going for up to several hundred dollars (US equivalent)
Unfortunately it looks like the complete Yokohama concert was pulled from Youtube but here’s a link to a 30 or 40 foot tall Miku performing to another sellout crowd.
Very impressive, so technological.