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 [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!]
