One of my university assignments this year was to create several visual effects shots. One of the requirements was a live action back plate. I decided to composite decay, grime and a sky replacment onto live action footage of a simple house, turning it from a normal building into a decaying structure also adding colour correction to create atmosphere. I did this prodominately in After Effects using Mocha to track the building to composite the decay and grime in and Photoshop to paint it in. Overall I was really happy with the result although some of the tracking could do with a bit of tweaking and the roto of the building wasnt as precise as I wouldve wanted.