I was the VFX Supervisor during the filming in a greenscreen set of some people practising different sports: archery, boxing, cycling, fencing and basket. Their actions were going to be used for a Projection Mapping in Maiden's Tower in Baku, to introduce the 2015 European Games.

The shots were taken in slow motion, and it was directed by Daniel Polanco, who contacted me. 

 

Anyway, despite my advice, they wanted me to put some trackers to the sportsmen and woman. I knew they weren't going to be necessary, in fact I thought they were going to cause some trouble later. But Daniel Polanco's manager said he knew about visual effects and everything should have a tracker. And eventually they weren't necessary, as I was saying all the time.

 

I also was able to help with the greenscreen extraction in some shots. And some of them were quite tricky, like the bowstring, specially when she fired.

Some more shots that were used...

And some more, that weren't. These ones were taken just in case. When we filmed, they didn't know yet what they were going to do, so they filmed from every angle and taking different actions.