4MiB, 786x553, 1623728557346.gif View SameGoogleiqdbSauceNAO Anonymous Tue 15 Jun 07:57:05 2021 No.13279941 ViewReplyOriginalReport Quoted By: why use matrix when u=x/z and v=y/z, and d =sqrt(x2+y2) maybe cuz the camera direction is unrotateable huh