Hey Kazuhiro, this is lovely, congrats! Any chance you might create more of these animations with children, but working only with abstract shapes, textures and colours? Our international Punto y Raya Junior 2021 call for abstract (non-representational) animations created by children under 13 is currently open, and we'd love to receive some work from your students. Warm regards from Spain and keep it up!
Thank you, Kazuhiro, for your unique video explaining your 3D installation art. I translated the text subtitles to English using Google translate. "This work has one light bulb each for red and blue, consisting of red/blue glasses. When you put on your glasses, the shadows look three dimensional. It looks like it is "in the wall". It is a sense of passage with myself in the mirror. And on the opposite wall... the shadow looks like it emerges from the wall. Touch your shadow... I have not been touched in the hand - it is felt. Like touching inside your body - a mysterious feeling. It has a breathtaking and fresh presence."
Very simple. You need stiff white card, divided into 16, 18 or 20 "pie slices". An old-school protractor will do the trick. The animations you've seen are great but I would suggest a "flight path" approach, with a small object taking a multiple of (say) 16 steps to complete its journey. Be sure to use more than the perimeter in your design. Use pencil a lot (3B) until you are completely happy with your animation. Paint the reverse BLACK to relax your iris as you look through 16 identical slits at a mirror. Small slits give sharper definition; larger offers brighter colours. Enjoy!