Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site ucbvax.BERKELEY.EDU Path: utzoo!decvax!bellcore!ulysses!ucbvax!info-graphics From: Info-Graphics-Request@AIDS-UNIX (Info-Graphics moderator Andy Cromarty) Newsgroups: mod.graphics Subject: Info-Graphics Digest Message-ID: <8602030607.AA17630@ucbvax.berkeley.edu> Date: Sun, 2-Feb-86 06:00:23 EST Article-I.D.: ucbvax.8602030607.AA17630 Posted: Sun Feb 2 06:00:23 1986 Date-Received: Mon, 3-Feb-86 23:40:28 EST Sender: daemon@ucbvax.BERKELEY.EDU Reply-To: Info-Graphics@AIDS-Unix Organization: The ARPA Internet Lines: 182 Approved: info-graphics@aids-unix.arpa Info-Graphics Digest Sun Feb 2 03:00:23 PST 1986 - Send submissions to Info-Graphics@AIDS-Unix - Send requests for list membership to Info-Graphics-Request@AIDS-Unix Today's Topics: Info-graphics list Los Angeles SIGGRAPH Feb 11 1986 Meeting ISSCO graphics face animation clipping, windowing, viewing pyramid refs <1972 wanted large realistic 3-D databases wanted to test HSA ---------------------------------------------------------------------- 13:02:18 CST Date: 01/27/86 13:37:56 EST From: IF0310%SER.BITNET@WISCVM.WISC.EDU (TOBY=BERK) Subject: Info-graphics list Can I be added to the distribution list for Info-Graphics? Thank you (Please Reply) Toby Berk Florida International University IF0310@SER ------------------------------ Date: Mon, 27 Jan 86 23:37:30 pst From: jisdale@omnilax (Jerry Isdale) Subject: Los Angeles SIGGRAPH Feb 11 1986 Meeting Los Angeles SIGGRAPH February Meeting Announcement Speaker: Steve E. Tice, Manager of Advanced Design Simulation Graphics Subject: Space Station Design at Rockwell International Date: Tuesday, Feb 11, 1986 Refreshments: 6:30 - 7:30pm Meeting: 7:30 - 9:30pm Location: Rockwell Downey Complex Gate 53 (corner of Stewart and Grey) 12214 Lakewood Blvd. Downey, Ca 90241 Full mockups of a Space Station module, the Space Shuttle, the Orbitor, and the Apollo capsule will be open to attendees during the refreshment hour. Foreign Nationals must call the SIGPHONE by Monday Feb 3rd and leave the following information in order to attend: - Name - Who you represent (company or self) - Where you are from - Green Card Number (if available) For Further Information: SIGPHONE: (213) 392-1074 Los Angeles ACM/Special Interest Group on Computer GRAPics PO BOX 90698 World Way Postal Center Los Angeles, CA 90009 ARPA/CSNET: jisdale@omnilax Jerry Isdale Omnibus Computer Graphics ------------------------------ 08:34:37 CST Date: Thu, 30 Jan 86 08:26:45 CST From: CCCRAIG%UMCVMB.BITNET@WISCVM.WISC.EDU (Craig Pepmiller) Subject: ISSCO graphics Hello, we are new to ISSCO Graphics. Are there any ISSCO users out there who would be interested in exchanging plot files, ISSCO helps and other related info? We are at the University of Missouri--Columbia and can be reached thru Bitnet. Please send replies by mail or reply to this digest. Arpa address (?): CCCRAIG%UMCVMB@WISCVM.ARPA Bitnet address: CCCRAIG@UMCVMB ------------------------------ From: Norm Badler Subject: face animation Date: Thu, 30 Jan 86 14:53 EST There aren't too many general purpose facial animation systems. We have one based on Ekman & Friesen's FACS system. For further information contact PLATT%upenn@csnet-relay or BADLER%upenn@csnet-relay . Steve Platt just finished his PhD dissertation on that topic in Dec. '85. He and I have submitted a paper on it SIGGRAPH '86. Norm Badler ------------------------------ From: wrf@ernie.berkeley.edu (W. Randolph Franklin) Subject: clipping, windowing, viewing pyramid refs <1972 wanted Date: 01 Feb 86 16:49:15 PST (Sat) Papers or technical reports from 1971 or earlier on CLIPPING or WINDOWING a 2-D or 3-D polygon with respect to a window or a TRUNCATED VIEWING PYRAMID (i.e. 6 clipping planes) are wanted. I am conducting a study into the history and priority of those ideas, i.e. who originally discovered them when, and so am interested in such papers from anywhere in the world. For example, a 1970 technical report from Europe, on clipping with respect to a truncated pyramid, would be welcome, even though the report was at the time ignored in the USA. A lot of graphics has been done either by industrial people not under "publish-or-perish" pressure, or by students who did not realize, at that time, that what they did was original. References to software or hardware or products are also welcome. If you did such work, and wish a belated acknowledgement, please contact me. Wm. Randolph Franklin, UC Berkeley, Arpanet: wrf@ernie.Berkeley.EDU USPS: Computer Science Div., 543 Evans, University of California, Berkeley CA, 94720, USA 415-642-9955 ------------------------------ From: wrf@ernie.berkeley.edu (W. Randolph Franklin) Subject: large realistic 3-D databases wanted to test HSA Date: 01 Feb 86 17:09:42 PST (Sat) I have a hidden surface algorithm [1,2] that performs very fast on randomly generated input (e.g. it took under 400 seconds on a Prime 500 to calculate the visible arcs from 10,000 random spheres packed ten deep). This algorithm calculates the visible arcs in object space to the machine's arithmetic precision, not just the color of each pixel. However, one objection to the algorithm has been that "real" data might perform worse than random i.i.d data. Therefore I would like to receive actual 2-D or 3-D graphic databases with 10,000 to 100,000 edges in order to statistically analyze them. They need not be current, and I will agree to keep confidential any data that you desire. Please contact me before actually sending anything. Thank you. [1] W. R. Franklin, "A Linear Time Exact Hidden Surface Algorithm", ACM Computer Graphics, vol. 14, no. 3, July 1980, pp. 117-123, (Pro- ceedings of SIGGRAPH'80). [2] -----, "An Exact Hidden Sphere Algorithm That Operates In Linear Time", Computer Graphics and Image Processing, vol. 15, no. 4, April 1981, pp. 364-379. Thanks. Wm. Randolph Franklin, UC Berkeley, Arpanet: wrf@ernie.Berkeley.EDU USPS: Computer Science Div., 543 Evans, University of California, Berkeley CA, 94720, USA 415-642-9955 ------------------------------ End of INFO-GRAPHICS ********************