Cinesite’s digital artists created the entire environment for this sequence using a combination of 2-D and 3-D digital renderings with the aid of proprietary software designed for the task.
Cinesite later replaced this with computer generated ice and snow layers, which the director could orchestrate into the shots according to the live action.
Cinesite created 3-D geometry that pre-mapped all the ice cracks procedurally and allowed for the natural random thickness, translucency and texture of the ice.