ˈælfə tˈɛstɪŋ ɪz ɐ tɛknˈiːk kˈɑːmən tʊ ˈoʊldɚ vˈɪdɪoʊ ɡˈeɪmz jˈuːzd tə ɹˈɛndɚ tɹænslˈuːsənt ˈɑːbdʒɛkts baɪ ɹᵻdʒˈɛktɪŋ pˈɪksəlz fɹʌm bˌiːɪŋ ɹˈɪʔn̩ tə ðə fɹˈeɪmbʌfɚ.
Alpha testing is a technique common to older video games used to render translucent objects by rejecting pixels from being written to the framebuffer.