Yes
The snowflakes in the Winter Olympics are holographic interactive projection technology. At the closing ceremony, the "traces" left by the 12 zodiac skates on the ground screen gradually formed a "Chinese knot" shape. At the same time, beautiful red lines generated by AR (augmented reality) technology grow gracefully in the sky, weaving into a huge "Chinese knot" wrapping the snowflake torch, and complementing the ground images.