I worked on Mortal Kombat as a part of Rising Sun Pictures.
I was responsible for leading the look of the ice on the show. This was a really challenging task, as I can to consider not only the look, but how it would be optimized for rendering. Rendering transmission depth in Arnold is very heavy, so I had to figure out ways to cut down on the render time significantly whilst maintaining the quality of the look. We also had to interact with the effects department, who provided us parameters to drive the age, frostiness, and base/tip of the ice.
Once the look was established, it was then be handed on to other artists to help cover the enormous volume of ice on the show - which often needed individual tweaking to get it looking just right.