Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!pasteur!ucbvax!XEROX.COM!"Robert_L._White.ESXC15" From: "Robert_L._White.ESXC15"@XEROX.COM Newsgroups: comp.sys.atari.st Subject: RE: ANIMATION QUESTION Message-ID: <880922-104812-2583@Xerox> Date: 22 Sep 88 17:47:54 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 30 Thanks to all who answered my Animation Questions. Much thanks to David M. Baggett who explained that the blurr I was getting was in actuality strobing. However I am now very confused about Leo De Wit's reply Re; the SetScreen command >I've got a copy of the book '3D Grafik Programmierung' from Data Becker. >It suggests that SETSCREEN swaps at vbl time. ***THIS IS NOT TRUE!!!*** >(maybe you got the same impression). SETSCREEN does not wait for vbl >to set the screen(s); only if you also change the resolution it will wait >for vbl. If this where true, wouldnt I sometimes see the screen change in the middle of a screen draw, and get a noticable flicker on the screen? I am using SetScreen and not waiting for the vertical blank, yet I do not see any screen flicker. It sure seems that SetScreen does wait for the next VBL. Could ATARI shed some lite on this subject PLEASE? The Question is: Does SETSCREEN wait till the next VBL to change? Also, David M. Baggett said there was a Animation Demo in the ARCHIVES. I would love to get this david! I do not have access to these archives, the only thing I seem to have access to is a LIST SERVER in CANADA. I am on a XEROX ETHERNET account and am not very firmiliar with GATE WAYS. Is there some way I can get at the archives? BTW I do not have any way of using a FTP program eather. Perhaps some kind soul could mail it to me! Thanks to all Robert L. White.