IRC log for #brlcad on 20080307

00:30.57 starseeker Hmm - this looks like fun to model - too bad the dimensions are too small to read http://arcweb.archives.gov/arc/digital_detail.jsp?&pg=1&rn=2&tn=796236&st=b&rp=summary&nh=2&si=0
00:35.29 brlcad cookie'd link, can't read it
00:40.37 starseeker pfft
00:40.39 starseeker hang on
00:41.28 starseeker http://my.bzflag.bz/~starseeker/783889_001_a.jpg
00:44.40 brlcad that would make an *awesome* csg model
00:45.32 brlcad you don't need to read dimensions, you could print that out, pull out a compass/protractor/ruler and go to town
00:47.33 starseeker true :-)
00:47.42 starseeker given an overall length anyway
00:50.06 brlcad looks like it's documented http://www.amazon.com/exec/obidos/ASIN/0060524049
00:50.18 brlcad (with dimensions and historic details)
00:55.56 brlcad http://www.globalsecurity.org/military/systems/ship/images/bm-monitor-h50954.jpg
00:58.30 brlcad https://dspace.sunsite.utk.edu/bitstream/1785/809/1/MS376p47-MonitorPlan-print.jpg
01:21.11 starseeker Awesome
01:21.41 starseeker The national archives may have the originals - I'll have to get in there and try to get some higher res photos
01:41.47 brlcad yeah
02:16.23 CIA-32 BRL-CAD: 03brlcad * r30490 10/brlcad/trunk/ (doc/deprecation.txt include/wdb.h): deprecate mk_fastgen_comb() .. should just use mk_comb() or mk_lcomb()
02:17.13 brlcad "In support of improved security, all SourceForge.net user passwords have been expired and must be changed upon next login. CVS, Subversion and Shell users will need to login to the site to change their password before they will be able to access these services."
02:37.55 CIA-32 BRL-CAD: 03brlcad * r30491 10/brlcad/trunk/include/raytrace.h: cleanup comments on LOS
02:41.19 CIA-32 BRL-CAD: 03brlcad * r30492 10/brlcad/trunk/ (NEWS src/conv/fast4-g.c):
02:41.20 CIA-32 BRL-CAD: make the regions being created by fastf-g default to setting the material code
02:41.24 CIA-32 BRL-CAD: to 1 and LOS to 100 so that it actually matches the defaults that the modeler
02:41.26 CIA-32 BRL-CAD: and librt use. this quick tweak implements a request from dwayne kregel (S2 SCR
02:41.28 CIA-32 BRL-CAD: 918) .. which I just heard about it a few min ago.
02:50.10 starseeker Hey brlcad - the terra.dsp and terra.g files in the demo db don't seem to be happy - DSP buffer wrong size: 131592 s/b 131072
02:52.14 brlcad see what svn props are set on terra.dsp
02:52.29 brlcad probably thinks it's a windows file
02:53.05 brlcad probably need to unset svn:eol-style, or set it to something better
02:54.21 starseeker svn:eol-style is set to CRLF
02:56.50 brlcad yeah, that's wrong
02:57.02 brlcad dsp files are usually msvc studio files
02:57.15 brlcad so it was set on import
02:57.40 brlcad should be able to just unset the prop and check it out from svn again
03:23.59 starseeker Is this the bit where svn is difficult about unsetting the prop?
03:24.06 starseeker s/difficult/different
03:27.00 starseeker Bingo - that was it
03:27.16 starseeker svn propdel svn:eol-style terra.dsp
03:27.28 starseeker should this be fixed in the main tree?
03:28.31 brlcad yep
03:28.54 starseeker will a commit do it or does it need some magic on the sf side?
03:29.08 brlcad that'll do it
03:29.53 starseeker k
03:29.58 starseeker hmm - weird
03:30.33 starseeker when I display ground.r and try to run rt I get raytrace failed, but the mged dialog succeeded?
03:31.20 brlcad what mged dialog?
03:31.35 starseeker File -> Raytrace
03:32.00 brlcad oh, you mean it works through the panel, but not with just "rt"?
03:32.07 starseeker yes
03:32.12 brlcad what's the error?
03:32.17 starseeker Raytrace failed.
03:32.26 brlcad heh, what led up to that
03:32.36 starseeker trying to find an error in the message...
03:33.13 starseeker bizarre - I don't seen an error message
03:33.14 brlcad should be right before the failed message
03:33.21 brlcad or it's crashing
03:33.30 brlcad try it on the command line
03:33.48 brlcad run "saveview" to save an rt script
03:33.52 brlcad then run that script
03:34.04 brlcad look at the log file and/or tweak the script to see what's going on
03:34.14 brlcad (it's just a simple text shell script)
03:34.19 starseeker Hmm - with the command line rt it says Segmentation fault
03:34.40 brlcad that's not good
03:34.44 brlcad this using head?
03:35.01 starseeker Not the very latest - let me rebuild
03:37.28 starseeker Hmm - the script did generate a pix file, apparently
03:38.21 starseeker Can I do the commit on just terra.dsp or do I need to do the db dir to get the .svn props
03:39.58 CIA-32 BRL-CAD: 03starseeker * r30493 10/brlcad/trunk/db/terra.dsp: Update props on terra.dsp to avoid file size issues when running demo.
03:40.06 starseeker wow that was fast
03:40.19 brlcad should be instantaneous :)
03:40.27 brlcad we fixed most of the CIA bugs
03:40.32 starseeker Cool :-)
03:40.43 starseeker OK, time to rebuild...
03:41.17 brlcad common pitfall .. once you use the script, there will be a pix file with mode 400 so you have to manually rm -f the file to render again
03:41.33 brlcad make sure it's non-zero too .. and the right size
03:41.37 brlcad might have just stubbed a file
03:41.41 brlcad or partial result
03:41.48 starseeker OK - let me rebuild first
03:45.08 starseeker brlcad: a thought (which was what prompted the dsp experiment) - could a dsp be created that had ocean wave contours and then rendered with water transparency?
03:45.37 starseeker (say, for a ship at sea effect?)
03:46.49 starseeker For bonus points, it could have a repeatable pattern and be mirrored arbitrarily to create larger ocean areas
04:04.16 brlcad sure could
04:04.33 brlcad there is a smoothed normals option on the dsp that should do nicely
04:04.54 brlcad might look more like glass than water, but certainly possible to get old-school water probably
04:06.17 starseeker maybe using extinction on the glass shader and a blue tint, then modeling actual ocean depth in the dsp?
04:08.28 starseeker If we wanted to get REALLY fancy we could add a routine adding/subtracting peaks and valleys in the dsp to create wave interference
04:17.10 brlcad and/or code up a new water shader ;)
04:19.01 starseeker New feature - modeling tanks under water!
04:19.37 starseeker Although I suppose it might be useful in "plowing through river" scenarios...
04:20.19 brlcad there's all sorts of fluids that it could represent that would be useful to be able to visualize
04:21.11 brlcad fuel and blood come to mind ..
04:21.26 starseeker coolant
04:21.36 brlcad oil, other lubricants
04:21.54 starseeker Would a proper water shader have to produce gradient effects?
04:24.09 brlcad I know we can represent atmospheric effects visually, though I really forget the mechanism at the moment (it's probably a procedural shader iirc)
04:24.30 brlcad something similar or maybe even that same shader might give the right effect, dunno
04:24.51 brlcad that's all experimental stuff, you'd likely be digging in code a bit
04:31.00 starseeker Phew - latest head cvs does NOT crash with the rt command
04:45.17 *** join/#brlcad louipc (n=louipc@bas8-toronto63-1088754020.dsl.bell.ca)
04:45.27 louipc howdy
04:46.09 starseeker howdy :-)
04:46.33 louipc svn HEAD is 7.11.5 is that right?
04:47.09 starseeker Um - not sure
04:52.05 louipc sweet
04:53.16 louipc I'm going to change the included PKGBUILD so it's mostly static. I can't figure how to really make it otherwise
05:03.14 CIA-32 BRL-CAD: 03louipc * r30494 10/brlcad/trunk/misc/archlinux/ (PKGBUILD.in brlcad.install.in brlcad.sh.in):
05:03.14 CIA-32 BRL-CAD: I'm making Arch Linux packaging scripts mostly static.
05:03.14 CIA-32 BRL-CAD: It seems the most practical thing to do.
05:03.25 brlcad 7.11.5 today, probably 7.12.0 tomorrow
05:04.58 louipc oh wow cool
05:05.17 louipc well the PKGBUILD will read include/conf/ for version
05:06.12 CIA-32 BRL-CAD: 03louipc * r30495 10/brlcad/trunk/misc/archlinux/ (6 files): Rename Arch Linux scripts, also fix md5sum in PKGBUILD
05:07.13 brlcad saw that, nifty
05:08.38 louipc I was wondering could there be a README on how to build packages for various distros to supplement INSTALL?
05:09.02 brlcad louipc: if there are edits that should get made when we release, should document it in HACKING in the release steps
05:09.14 brlcad there are platform-specific readme's already
05:09.20 louipc eg. since you've got debian, redhat, archlinux, etc
05:09.30 brlcad go for it :)
05:09.55 brlcad they're in doc/README.*
05:10.16 louipc ah alright
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07:08.36 brlcad some fun pics:
07:08.39 brlcad http://www4.army.mil/OCPA/uploads/large/OCPA-2005-03-10-092226.jpg
07:08.49 brlcad http://www.arcent.army.mil/cflcc_today/2005/february/images/feb01_03/tank2.jpg
07:09.03 brlcad that's a freaking awesome shot
07:09.46 brlcad and yet another favorite.. http://www.af.mil/shared/media/photodb/photos/070718-f-5622m-904.jpg :-)
07:09.51 brlcad hehe
07:12.20 louipc sweet
07:34.03 *** join/#brlcad vedge (i=vedge@vedge.org)
08:03.14 CIA-32 BRL-CAD: 03louipc * r30496 10/brlcad/trunk/ (configure.ac misc/archlinux/Makefile.am): Makefile and configure changes for Arch Linux
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14:01.58 CIA-32 BRL-CAD: 03bob1961 * r30497 10/brlcad/trunk/src/tclscripts/geometree/geometree.tcl: Remove dead auto_path code.
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15:22.52 yukonbob hello, nerds
15:25.55 *** join/#brlcad Elperion (n=Bary@p54875A33.dip.t-dialin.net)
15:31.53 ``Erik heh
16:31.54 clock_ Do you know how it sounds when you play church bells with a bow?
16:39.53 ``Erik O.o
16:47.01 clock_ http://ronja.twibright.com/tubulars_and_bow.mp3
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18:58.08 CIA-32 BRL-CAD: 03bob1961 * r30498 10/brlcad/trunk/src/tclscripts/geometree/GeometryBrowser.tcl: Add a few menu bindings to get things working a little better (i.e. right button to bring up menu, as before, and release to invoke menu item.
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20:32.14 ``Erik brlcad, "they" say the tcl issue is back, and want your super voodoo magic to "fix" it
21:45.38 CIA-32 BRL-CAD: 03bob1961 * r30499 10/brlcad/trunk/src/tclscripts/geometree/GeometryBrowser.tcl: Added code to redraw drawn objects.
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21:50.05 CIA-32 BRL-CAD: 03bob1961 * r30500 10/brlcad/trunk/ (7 files in 6 dirs): Update version to 7.12.0. Preparing for release.
21:51.10 IriX64 http://rafb.net/p/qLIWo075.html <---- checked out as of last night , good job :)
21:55.20 IriX64 http://www3.sympatico.ca/mario.dulisse2/latest.png <---- what that paste refers too :)
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23:41.59 CIA-32 BRL-CAD: 03brlcad * r30501 10/brlcad/trunk/src/other/ (tcl/unix/Makefile.in tk/unix/Makefile.in): make sure the libraries have the exec bit set

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