Also see the errors section in Prueitt's classic 1984 book on computer graphics https://archive.org/details/artcomputer00prue/page/186/mode/2up?view=theater ht

Also see the errors section in Prueitt's classic 1984 book on computer graphics https://archive.org/details/artcomputer00prue/page/186/mode/2up?view=theater https://archive.org/details/artcomputer00prue/page/186/mode/...