ɡɹˈæts hɐz ˈɔːlsoʊ kəlˈæbɚɹˌeɪɾᵻd wɪð ˈʌðɚɹ ˈænɪmˌeɪɾɚz sˈʌtʃ ɐz pˈoːɹtlənd, ˈɔːɹɪɡənz dʒoʊˈænə pɹˈiːstli tə pɹədˈuːs fˈɪlmz ðæt ˈænɪmˌeɪɾᵻd θɹˈiːdˈiː ˈɑːbdʒɛkts ɔnðə flˈæt ˌænɪmˈeɪʃən tˈeɪbəl.
Gratz has also collaborated with other animators such as Portland, Oregon's Joanna Priestly to produce films that animated 3-D objects on the flat animation table.