I'm proud of the Time Flies and the Escher staircase and also a Magritte one (which isn't there). They were all very tricky to do with the animation. I remember doing the crystal ball and the kettle (but where is the steam, and why did I feel the need to get in the picture?). Some of the images were designed by a guy called Will who was a friend of Stephen Crouch (the boss). SC came up with the Glasnost image. I used a team team of theatre model makers for most of the models.

I vaguely remember the others. We had a contract to do 60 images in about 3 months, which was far to many to do well. We were clearly second guessing what we thought would be popular. So I think the quality wore thin in places. The shot gun was by the assistant at holoscan, Henry.

I would like to see the Escher staircase again. I tried to design it so that the perspective, which can only work perfectly from one position was forgotten about by animating the figures from one position to the next. We made 6 models of the staircase, each with the figures 1 inch apart. The next model would have the figures one sixth further on and so on until position five. Position 7 would be the same as position 1, position 8 would be the same as position 2 etc. I used 42 masks and shot positions 1,7,13,20,26,33,40 of the first model; positions 2,8,14,21,27,34,41 of the second model and so on through to the 6th model at 6,12,19,25,32,39. The masks had 1cm slots placed 6cms apart to try to align to stereo pair viewing widths. All the figures only travel about 1 inch and then start again, so over the parallax of the hologram you get the appearance that they have moved about the distance of six figures. This I call the "light-rope" technique (as in disco light chains). I have used it many times including the other Escher mobius loop where the animation is repeated over a short distance but appears to start again and continue. To keep modelling costs down we used standard architectural model figures, but what is really nice is that we sorted them in size so that gradually they morph from one figure to the next. For example, I think I remember a man in a raincoat taking off his hat which then becomes a woman's handbag and a skirt. This carries on around until you have children morphing and possibly even a dog at the back!