While animators traditionally used to draw each part of the movements and changes of figures on transparent cels that could be moved over a separate background, computer animation is usually based on programming paths between key frames to maneuver digitally created figures throughout a digitally created environment.
wˌaɪl ˈænɪmˌeɪɾɚz tɹɐdˈɪʃənəli jˈuːzd tə dɹˈɔː ˈiːtʃ pˈɑːɹt ʌvðə mˈuːvmənts ænd tʃˈeɪndʒᵻz ʌv fˈɪɡjɚz ˌɔn tɹænspˈæɹənt sˈɛlz ðæt kʊd biː mˈuːvd ˌoʊvɚɹ ɐ sˈɛpɹət bˈækɡɹaʊnd, kəmpjˈuːɾɚɹ ˌænɪmˈeɪʃən ɪz jˈuːʒuːəli bˈeɪst ˌɔn pɹˈoʊɡɹæmɪŋ pˈæθs bᵻtwˌiːn kˈiː fɹˈeɪmz tə mənˈuːvɚ dˈɪdʒɪɾəli kɹiːˈeɪɾᵻd fˈɪɡjɚz θɹuːˈaʊt ɐ dˈɪdʒɪɾəli kɹiːˈeɪɾᵻd ɛnvˈaɪɹənmənt.