When texturing Gromit, I tried to avoid the shiny ‘CG’ look of films such as Flushed Away and instead try and capture the original hand-made feel.
Creator Nick Park has specifically mentioned that he loves the authentic look of fingerprints and signs of manual animation that can be seen in his older films – even going so far as to put deliberate fingerprints into the perfect models made for the feature length ‘Curse of the Were-Rabbit’. To keep with his vision I added fingerprints and noise as a bump map
When you are sculpting with your hands, he says, it is a direct and intimate process. Something about the idea of the clay having your fingerprint on it. In this sense there is a ‘smoothness’ to CGI he doesn’t like.