I thought I'd share a trick I came up with for a live performance in which I wanted to simulate the look of the performers being reflected on a water surface. I used a live camera feed of the stage and brought it into MadMapper using Syphon. I then flipped the image and aligned it below the actors. For the final performance, I blended a water surface and added a distortion effect to the live image to sell the effect.
Video clip of one of my tests:
Image from the performance: