IRC log for #brlcad on 20100128

00:00.54 *** join/#brlcad R0b0t1 (n=Enigma@unaffiliated/r0b0t1)
00:51.02 CIA-34 BRL-CAD: 03brlcad * r37451 10/brlcad/trunk/src/other/tcl/generic/regex.h:
00:51.02 CIA-34 BRL-CAD: define __REG_NOCHAR so that we don't declare the old char regex functions.
00:51.02 CIA-34 BRL-CAD: we're getting conflicting types on re_comp() and re_exec() on bsd systems. we
00:51.02 CIA-34 BRL-CAD: don't use those functions though (nobody should really), so it should be safe to
00:51.02 CIA-34 BRL-CAD: leave undeclared. really just needed the 'FRONT' regex function declarations.
01:15.08 CIA-34 BRL-CAD: 03r_weiss * r37452 10/brlcad/trunk/sh/tracker.sh: Updated to correctly export DATE LAST UPDATED
01:31.20 ``Erik heh, whoa, he committed something
01:31.32 starseeker don't faint ;-)
01:31.51 ``Erik but if I do, then I can hit my head and have a reason for not showing up tomorrie :D
01:32.15 starseeker aw, but then you won't get to see my annoying marching cubes email
01:32.30 ``Erik O.o
01:32.44 ``Erik dare I ask?
01:33.21 starseeker probably asking stuff you've already though about - octrees
01:33.54 ``Erik for marching cubes? you're probably talking about an approach to the subdivision stuff I was talking about...
01:34.45 starseeker I think gqa could benefit from the application of similar ideas, just using volumes rather than the marching cube face logic
01:35.03 ``Erik but knowing when to subdivide would be a trick, there's the risk of geometry passing through a 'cube' without hitting a vertex of the cube, so the algorithm will assume there's no geometry in it
01:35.12 starseeker we do quad subdivision on nurbs, and octree subdivision of volumes is the 3d version of that
01:35.26 ``Erik yes, I'm well familiar with quadtrees and octrees
01:35.34 starseeker I was talking with Ed about that earlier
01:35.39 starseeker have a couple ideas
01:36.37 ``Erik isn't sure it actually is a benefit to g_qa, the locality thrashing may offset any meager benefit
01:36.50 starseeker depends on how dense a grid you fire
01:37.26 ``Erik you're basically guaranteeing a cache miss every time with the current approach, I think...
01:37.28 starseeker or rather, need to fire
01:37.54 starseeker gqa's current approach?
01:38.01 ``Erik yeh, it hops all over the place
01:38.07 starseeker mm
01:38.30 ``Erik and I'd imagine that most of the cost is cache related anyways... *shrug*
01:38.38 ``Erik hit it with shark :D
01:38.52 ``Erik then redo it to just shoot a regular grid and compare that
01:39.04 starseeker well, if you're in tomorrow and have a few minutes I'd like to outline what I'm thinking octree wise
01:39.26 starseeker if nothing else, you get a chance to shoot down one of my ideas and you know how much fun you have doing that
01:39.32 starseeker :P
01:39.44 starseeker almost as good as making fun of me being stuck in the mud
01:39.51 Nohla holas
01:40.16 starseeker hola :-)
01:40.17 ``Erik octrees even lost ground to kd-trees back when cpu's were much slower *shrug*
01:40.35 ``Erik they were the rage for outdoor game crap way back when, though
01:40.43 starseeker nods
01:40.43 ``Erik um, along with ROAM for big terrains heh
01:41.10 ``Erik then hoppe did his shtuff
01:41.46 ``Erik (yeah, I know... wtf, something good from microsoft? obviously their research facility is on a different planet hten their product development, corporate, legal, etc stuff)
01:41.56 starseeker has notice that before
01:42.07 ``Erik VIPM was nifty at the time, though
01:42.29 ``Erik s/hten/than/
01:42.39 ``Erik evening, nohla
01:42.55 starseeker well, don't want to waste time if it's a useless idea
01:43.03 ``Erik trapped like carrots, heh
01:43.07 starseeker hopes he hasn't forced ``Erik to explain it to Ed...
01:43.22 Nohla ``Erik good day, for the hole day :)
01:43.53 ``Erik well, it'll probably go something like... <ed> so what's this cliff was saying about octrees? <erik> that's the adaptive refinement we talked about. <ed> ah
01:44.10 starseeker heh
01:45.16 ``Erik unless this demo thingy puts me in a mood, then I might say "heh, yeah, cliff found an ancient technique we all ditched and is pretending to be a coder" :D *duck*
01:45.58 starseeker sigh - I do feel like that on some days
01:46.13 ``Erik hehehe, naw, just different background :D
01:46.26 ``Erik you were doing... math... for fun... when I was studying all the video game fu
01:46.32 starseeker heh
01:46.44 starseeker I just didn't have access to video games or computers
01:46.54 starseeker shudders to think how messed up he would be if he had
01:47.10 ``Erik I mean, proofs instead of quaternions? srsy?
01:47.44 starseeker ``Erik: so kd-trees were the successer to octrees?
01:48.06 ``Erik they were the successor to b-trees
01:48.27 starseeker ah
01:48.46 ``Erik but 3 kd-tree stages tended to be quicker than a single octree stage for most video game crud
01:49.09 ``Erik and what's his name wrote articles about portal/sector at about the same time, which was teh awesomez
01:49.20 ``Erik h-something on, uh, gamedev.net?
01:49.25 ``Erik havok?
01:49.32 starseeker oh, the Id guy?
01:49.48 ``Erik dunno
01:50.04 ``Erik shoot, what was the name of that site... black background and orangish text
01:50.14 starseeker are you using kd-trees for the marching cubes stuff then?
01:50.35 ``Erik no
01:50.52 ``Erik first version is going to be regular grid walked linearly
01:51.05 ``Erik I'm not sure subdivision approaches would be acceptable :/
01:51.31 ``Erik for the same reason the metaball ray "tracing" is flakey
01:51.55 starseeker missing small features?
01:52.02 ``Erik yeah
01:52.21 starseeker my suggestion to Ed was to use the bounding box hierarchy of the CSG primitives
01:52.24 ``Erik the 'small'ness of the feature is the size of the first sample subdivision
01:52.38 starseeker unlike metaballs, we have some extra information we can use
01:52.47 ``Erik possibly
01:53.05 ``Erik but it's all irrelevant until I figure out how to shove triangles into an nmg :D
01:53.12 starseeker octree seemed to lend itself to that...
01:53.13 starseeker heh yeah
01:53.22 starseeker that's wacky
01:53.31 ``Erik the schedule has a wad of time at the end for exploring optimizations
01:53.46 starseeker remembers being scared of that early on - looks like I was right to fear ;-)
01:53.50 ``Erik no need for premature optimizations :)
01:57.00 ``Erik heh /* implement me */ ... that helps
01:57.14 starseeker don't you love those?
01:57.23 starseeker the tk libdm stuff has a few of thos
01:57.28 starseeker those even
02:14.47 *** join/#brlcad akafubu (n=akafubu@unaffiliated/akafubu)
02:44.27 Nohla starseeker yesterday I couldnot commit
02:44.54 Nohla Is it work anyway?
02:52.39 Nohla does it work :P
02:58.29 *** join/#brlcad branco_ (n=branco@79.114.79.230)
03:00.07 branco_ hello sean
03:05.21 branco_ this irc thing is very unreliable ; i'll make a sourceforge forum message about ubuntu 8.04 and brlcad 7.16.4 - there I can write everything at once and no disconecting or posting one on top of the other and clear history and not having to wait for the answer
03:13.08 louipc agreed
03:14.08 louipc I prefer mailing lists though. I can operate from the comfort of mutt.
03:32.19 *** join/#brlcad Nohla (n=jesica@168.226.179.147)
03:35.45 CIA-34 BRL-CAD: 03starseeker * r37453 10/brlcad/trunk/NEWS:
03:35.45 CIA-34 BRL-CAD: Fixed behavior of commands that invoke an external editor - libged migration of
03:35.45 CIA-34 BRL-CAD: logic resulted in some of the special case logic for editors needing a
03:35.45 CIA-34 BRL-CAD: controlling terminal being lost. Now MGED generates the required information
03:35.46 CIA-34 BRL-CAD: and sends it to the libged routine that invokes the editor - in essence, MGED
03:35.48 CIA-34 BRL-CAD: now tells libged how it wants the editor invoked.
03:41.24 branco_ ok so now it's posted on the forum - no more irc for me
03:41.29 Stattrav louipc: if the comfort of mutt == comfort of using it from a command line. there exists irssi which is a non-gui tool to access irc
03:41.48 *** part/#brlcad branco_ (n=branco@79.114.79.230)
03:45.46 ``Erik heh, yet another one who's in both #brlcad and #lisp, odd
03:56.06 Stattrav ``Erik: i am not good at lisp, i am a novice :)
03:56.20 Stattrav lisp n00b
03:58.22 ``Erik <-- is under the impression that you quit being a lisp noob after ~20 years of coding in lisp... maybe...
03:58.44 Stattrav lol true :)
03:59.40 Stattrav in december 2009 i met a person at a scipy conference who has been a lisp user for around 30 years now.
04:00.06 Stattrav :s/user/programmer/
04:00.29 CIA-34 BRL-CAD: 03erikgreenwald * r37454 10/brlcad/trunk/src/conv/g-egg.c: note location of file format
04:04.37 ``Erik if scheme counts, I only have ten years :(
04:12.56 Stattrav it does i guess :) its a dialect
04:45.42 starseeker kinda like - "Apple - successfully going out of business for 20 years" it's "$Programmer - Lisp newbie for 10 years and counting."
04:52.36 ``Erik or bsd, dying since '73?
04:53.03 ``Erik 77?
05:02.17 ``Erik heh, nifty, (apply #'lcm (loop for i from 1 to 10 collect i))
05:02.28 ``Erik 2520 ftw
05:02.40 ``Erik DAMN colbert report for making me code
05:44.30 *** join/#brlcad PrezKennedy (i=Matthew@whitecalf.net)
09:31.46 *** join/#brlcad Stattrav (n=Stattrav@202.3.77.161)
10:41.58 *** join/#brlcad ibot (i=ibot@rikers.org)
10:41.58 *** topic/#brlcad is BRL-CAD Open Source Solid Modeling || http://brlcad.org || http://sf.net/projects/brlcad || #brlcad logs at http://ibot.rikers.org/%23brlcad/ || Happy Open Source Anniversary! (December 21st) || Release 7.16.4 in prep, should be posted 20100114
12:18.36 CIA-34 BRL-CAD: 03indianlarry * r37455 10/brlcad/trunk/src/conv/step/ (4 files): Just update to copyright dates, somehow got skipped.
12:33.31 CIA-34 BRL-CAD: 03d_rossberg * r37456 10/brlcad/trunk/src/libged/editit.c: added the missing buffer for the MS Windows version
12:58.20 ``Erik indianlarry: copyright update is a search/replace script, the conv/step files might not be in the 'right' format for the script to see?
13:00.18 brlcad yep
13:00.29 brlcad DimensionalExponented States Government
13:00.34 brlcad DimensionalExponentsed States Government
13:00.46 brlcad someone had fun with a search n replace
13:00.55 brlcad the script doesn't think they're ours to mess with
13:01.07 brlcad DerivedUnitElemented States Government
13:07.36 *** join/#brlcad cosurgi (n=cosurgi@atak.bl.pg.gda.pl)
13:12.06 Stattrav hey brlcad
13:12.43 Stattrav hey Sean
13:16.48 CIA-34 BRL-CAD: 03brlcad * r37457 10/brlcad/trunk/doc/deprecation.txt: names not set in stone, still need to think about them some more but the rt timers need to become bu timers
14:31.37 brlcad hello Stattrav
14:32.01 brlcad i'm on and off today, so there will be reply lag ;)
14:55.53 *** join/#brlcad akafubu (n=akafubu@unaffiliated/akafubu)
20:41.12 ``Erik swank, full build on fbsd now, that regex fix did it, it'd seem
20:58.40 brlcad cool
20:58.42 brlcad even 9?
20:59.02 CIA-34 BRL-CAD: 03brlcad * r37458 10/brlcad/trunk/src/conv/nastran-g.c: ws indent style cleanup
21:03.10 CIA-34 BRL-CAD: 03brlcad * r37459 10/brlcad/trunk/src/conv/viewpoint-g.c: ws indent style cleanup
21:05.13 ``Erik my 9 box isn't responding
21:05.36 ``Erik it may be at a bios 'push f1 to continue' screen, I'd been dorking with it remotely, forgot to look on my way out the door this morning, had other crap on my mind
21:26.59 *** join/#brlcad R0b0t1 (n=Enigma@unaffiliated/r0b0t1)
22:01.03 *** join/#brlcad branco (n=branco@79.114.81.192)
22:09.59 branco hello - again with the ubuntu problem - noone answered on the forum so mabe you have more time now ? - brl-cad is not high priority for me so I don't mind if I get no answer but I kinda got mad about not being able to compile so I still didn't give up completely on posting messages about my problem
22:10.37 brlcad branco: I read your message, but just have have been busy yesterday and today
22:11.25 branco ok so if you will post a message in the forum sometimes it's alright
22:12.34 branco won't stay longer , bye
22:13.23 brlcad bah
22:15.11 ``Erik should make all responses on the forum to him a single word :> *duck*
22:15.50 alex_joni hit&run
22:16.57 CIA-34 BRL-CAD: 03starseeker * r37460 10/brlcad/branches/dmtogl/ (12 files in 11 dirs):
22:16.59 CIA-34 BRL-CAD: Ugh. Quick and dirty stab at getting tcl/tk and itcl/itk cvs versions building
22:17.01 CIA-34 BRL-CAD: in BRL-CAD tree. Something not right - tkhtml3 isn't happy - but build at least
22:17.03 CIA-34 BRL-CAD: gets past those directories. Right now it wants zlib subdir in tcl/compat -
22:17.05 CIA-34 BRL-CAD: need to figure out how to remove the requirement.
22:50.35 brlcad he's a her
22:51.26 ``Erik it.
22:52.29 ``Erik :D
23:28.46 CIA-34 BRL-CAD: 03starseeker * r37461 10/brlcad/branches/dmtogl/src/other/tkhtml3/src/Makefile.am: Tweaks to new tkhtml3 Makefile.am.

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