2D animation techniques tend to focus on image manipulation while 3D techniques usually build virtual worlds in which characters and objects move and interact.
tˈuː dˈiː ˌænɪmˈeɪʃən tɛknˈiːks tˈɛnd tə fˈoʊkəs ˌɔn ˈɪmɪdʒ mənˌɪpjʊlˈeɪʃən wˌaɪl θɹˈiː dˈiː tɛknˈiːks jˈuːʒuːəli bˈɪld vˈɜːtʃuːəl wˈɜːldz ɪnwˌɪtʃ kˈæɹɪktɚz ænd ˈɑːbdʒɛkts mˈuːv ænd ˌɪntɚɹˈækt.