>At 17:08 -0500 06/02/02, Colin Holgate wrote: >>>The client wants an explanation of why it is jerky. I would assume that it >>>is a combination of processor and redraw. That would be a video card issue, >>>no? >> >>Maybe there's an obvious answer to all the problems... give me a minute. >> >>Actually, while you're giving me a minute, tell me exactly what the >>images look like. > >Yeah, what is the meaning of "jerky" in this context? >Usually it works in the time-domain, and signifies a repeated pattern >that was supposed to repeat at regular intervals, but instead occur >at uneven intervals, ie: not steady. > >But somehow I have hunch it works in the spatial domain here, >signifiying a non-anti-aliased rotation, that tears by complete rows >of pixels at given rotations. > >If jerky is timebased, the task is to take firmer control of the cpu, >preventing it from spending cycles in other activities. > >If jerky is spatial, the task is to enable anti-aliased rotation as >with AlphamaniaXtra. >I believe the stage always (or by default?) does distortion >operations non-anti-aliased, but imaging lingo is able to do >anti-aliased distortions such as quad manipulations. >I think, with imaging lingo you could even perform the rotations at >an oversize, and then scale down to size being "staged", that should >help in smoothing the appearance, to the pleasurousity of clients. > >Jakob it is spatial.
Brian Douglas (:ub) ============================================================================ [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!]
