i posted my question on the jitter forum without success (and searched in the forum before).
i put it in the max forum 'cause it's not only jitter question but also mathematic.
i can't figure out how to convert some data to other.
i want to make a video player with the possibility to set the coordinates of each corner of the display.
does somebody help me for this math, please ?
here's the patche to illustrate what i'm trying to do :