IRC log for #brlcad on 20080307

00:30.57starseekerHmm - 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
00:35.29brlcadcookie'd link, can't read it
00:40.37starseekerpfft
00:40.39starseekerhang on
00:41.28starseekerhttp://my.bzflag.bz/~starseeker/783889_001_a.jpg
00:44.40brlcadthat would make an *awesome* csg model
00:45.32brlcadyou don't need to read dimensions, you could print that out, pull out a compass/protractor/ruler and go to town
00:47.33starseekertrue :-)
00:47.42starseekergiven an overall length anyway
00:50.06brlcadlooks like it's documented http://www.amazon.com/exec/obidos/ASIN/0060524049
00:50.18brlcad(with dimensions and historic details)
00:55.56brlcadhttp://www.globalsecurity.org/military/systems/ship/images/bm-monitor-h50954.jpg
00:58.30brlcadhttps://dspace.sunsite.utk.edu/bitstream/1785/809/1/MS376p47-MonitorPlan-print.jpg
01:21.11starseekerAwesome
01:21.41starseekerThe national archives may have the originals - I'll have to get in there and try to get some higher res photos
01:41.47brlcadyeah
02:16.23CIA-32BRL-CAD: 03brlcad * r30490 10/brlcad/trunk/ (doc/deprecation.txt include/wdb.h): deprecate mk_fastgen_comb() .. should just use mk_comb() or mk_lcomb()
02:17.13brlcad"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."
02:37.55CIA-32BRL-CAD: 03brlcad * r30491 10/brlcad/trunk/include/raytrace.h: cleanup comments on LOS
02:41.19CIA-32BRL-CAD: 03brlcad * r30492 10/brlcad/trunk/ (NEWS src/conv/fast4-g.c):
02:41.20CIA-32BRL-CAD: make the regions being created by fastf-g default to setting the material code
02:41.24CIA-32BRL-CAD: to 1 and LOS to 100 so that it actually matches the defaults that the modeler
02:41.26CIA-32BRL-CAD: and librt use. this quick tweak implements a request from dwayne kregel (S2 SCR
02:41.28CIA-32BRL-CAD: 918) .. which I just heard about it a few min ago.
02:50.10starseekerHey 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
02:52.14brlcadsee what svn props are set on terra.dsp
02:52.29brlcadprobably thinks it's a windows file
02:53.05brlcadprobably need to unset svn:eol-style, or set it to something better
02:54.21starseekersvn:eol-style is set to CRLF
02:56.50brlcadyeah, that's wrong
02:57.02brlcaddsp files are usually msvc studio files
02:57.15brlcadso it was set on import
02:57.40brlcadshould be able to just unset the prop and check it out from svn again
03:23.59starseekerIs this the bit where svn is difficult about unsetting the prop?
03:24.06starseekers/difficult/different
03:27.00starseekerBingo - that was it
03:27.16starseekersvn propdel svn:eol-style terra.dsp
03:27.28starseekershould this be fixed in the main tree?
03:28.31brlcadyep
03:28.54starseekerwill a commit do it or does it need some magic on the sf side?
03:29.08brlcadthat'll do it
03:29.53starseekerk
03:29.58starseekerhmm - weird
03:30.33starseekerwhen I display ground.r and try to run rt I get raytrace failed, but the mged dialog succeeded?
03:31.20brlcadwhat mged dialog?
03:31.35starseekerFile -> Raytrace
03:32.00brlcadoh, you mean it works through the panel, but not with just "rt"?
03:32.07starseekeryes
03:32.12brlcadwhat's the error?
03:32.17starseekerRaytrace failed.
03:32.26brlcadheh, what led up to that
03:32.36starseekertrying to find an error in the message...
03:33.13starseekerbizarre - I don't seen an error message
03:33.14brlcadshould be right before the failed message
03:33.21brlcador it's crashing
03:33.30brlcadtry it on the command line
03:33.48brlcadrun "saveview" to save an rt script
03:33.52brlcadthen run that script
03:34.04brlcadlook at the log file and/or tweak the script to see what's going on
03:34.14brlcad(it's just a simple text shell script)
03:34.19starseekerHmm - with the command line rt it says Segmentation fault
03:34.40brlcadthat's not good
03:34.44brlcadthis using head?
03:35.01starseekerNot the very latest - let me rebuild
03:37.28starseekerHmm - the script did generate a pix file, apparently
03:38.21starseekerCan I do the commit on just terra.dsp or do I need to do the db dir to get the .svn props
03:39.58CIA-32BRL-CAD: 03starseeker * r30493 10/brlcad/trunk/db/terra.dsp: Update props on terra.dsp to avoid file size issues when running demo.
03:40.06starseekerwow that was fast
03:40.19brlcadshould be instantaneous :)
03:40.27brlcadwe fixed most of the CIA bugs
03:40.32starseekerCool :-)
03:40.43starseekerOK, time to rebuild...
03:41.17brlcadcommon 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
03:41.33brlcadmake sure it's non-zero too .. and the right size
03:41.37brlcadmight have just stubbed a file
03:41.41brlcador partial result
03:41.48starseekerOK - let me rebuild first
03:45.08starseekerbrlcad:  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?
03:45.37starseeker(say, for a ship at sea effect?)
03:46.49starseekerFor bonus points, it could have a repeatable pattern and be mirrored arbitrarily to create larger ocean areas
04:04.16brlcadsure could
04:04.33brlcadthere is a smoothed normals option on the dsp that should do nicely
04:04.54brlcadmight look more like glass than water, but certainly possible to get old-school water probably
04:06.17starseekermaybe using extinction on the glass shader and a blue tint, then modeling actual ocean depth in the dsp?
04:08.28starseekerIf we wanted to get REALLY fancy we could add a routine adding/subtracting peaks and valleys in the dsp to create wave interference
04:17.10brlcadand/or code up a new water shader ;)
04:19.01starseekerNew feature - modeling tanks under water!
04:19.37starseekerAlthough I suppose it might be useful in "plowing through river" scenarios...
04:20.19brlcadthere's all sorts of fluids that it could represent that would be useful to be able to visualize
04:21.11brlcadfuel and blood come to mind ..
04:21.26starseekercoolant
04:21.36brlcadoil, other lubricants
04:21.54starseekerWould a proper water shader have to produce gradient effects?
04:24.09brlcadI know we can represent atmospheric effects visually, though I really forget the mechanism at the moment (it's probably a procedural shader iirc)
04:24.30brlcadsomething similar or maybe even that same shader might give the right effect, dunno
04:24.51brlcadthat's all experimental stuff, you'd likely be digging in code a bit
04:31.00starseekerPhew - latest head cvs does NOT crash with the rt command
04:45.17*** join/#brlcad louipc (n=louipc@bas8-toronto63-1088754020.dsl.bell.ca)
04:45.27louipchowdy
04:46.09starseekerhowdy :-)
04:46.33louipcsvn HEAD is 7.11.5 is that right?
04:47.09starseekerUm - not sure
04:52.05louipcsweet
04:53.16louipcI'm going to change the included PKGBUILD so it's mostly static. I can't figure how to really make it otherwise
05:03.14CIA-32BRL-CAD: 03louipc * r30494 10/brlcad/trunk/misc/archlinux/ (PKGBUILD.in brlcad.install.in brlcad.sh.in):
05:03.14CIA-32BRL-CAD: I'm making Arch Linux packaging scripts mostly static.
05:03.14CIA-32BRL-CAD: It seems the most practical thing to do.
05:03.25brlcad7.11.5 today, probably 7.12.0 tomorrow
05:04.58louipcoh wow cool
05:05.17louipcwell the PKGBUILD will read include/conf/ for version
05:06.12CIA-32BRL-CAD: 03louipc * r30495 10/brlcad/trunk/misc/archlinux/ (6 files): Rename Arch Linux scripts, also fix md5sum in PKGBUILD
05:07.13brlcadsaw that, nifty
05:08.38louipcI was wondering could there be a README on how to build packages for various distros to supplement INSTALL?
05:09.02brlcadlouipc: if there are edits that should get made when we release, should document it in HACKING in the release steps
05:09.14brlcadthere are platform-specific readme's already
05:09.20louipceg. since you've got debian, redhat, archlinux, etc
05:09.30brlcadgo for it :)
05:09.55brlcadthey're in doc/README.*
05:10.16louipcah alright
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07:08.36brlcadsome fun pics:
07:08.39brlcadhttp://www4.army.mil/OCPA/uploads/large/OCPA-2005-03-10-092226.jpg
07:08.49brlcadhttp://www.arcent.army.mil/cflcc_today/2005/february/images/feb01_03/tank2.jpg
07:09.03brlcadthat's a freaking awesome shot
07:09.46brlcadand yet another favorite.. http://www.af.mil/shared/media/photodb/photos/070718-f-5622m-904.jpg  :-)
07:09.51brlcadhehe
07:12.20louipcsweet
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08:03.14CIA-32BRL-CAD: 03louipc * r30496 10/brlcad/trunk/ (configure.ac misc/archlinux/Makefile.am): Makefile and configure changes for Arch Linux
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14:01.58CIA-32BRL-CAD: 03bob1961 * r30497 10/brlcad/trunk/src/tclscripts/geometree/geometree.tcl: Remove dead auto_path code.
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15:22.52yukonbobhello, nerds
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15:31.53``Erikheh
16:31.54clock_Do you know how it sounds when you play church bells with a bow?
16:39.53``ErikO.o
16:47.01clock_http://ronja.twibright.com/tubulars_and_bow.mp3
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18:58.08CIA-32BRL-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``Erikbrlcad, "they" say the tcl issue is back, and want your super voodoo magic to "fix" it
21:45.38CIA-32BRL-CAD: 03bob1961 * r30499 10/brlcad/trunk/src/tclscripts/geometree/GeometryBrowser.tcl: Added code to redraw drawn objects.
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21:50.05CIA-32BRL-CAD: 03bob1961 * r30500 10/brlcad/trunk/ (7 files in 6 dirs): Update version to 7.12.0. Preparing for release.
21:51.10IriX64http://rafb.net/p/qLIWo075.html   <---- checked out as of last night , good job :)
21:55.20IriX64http://www3.sympatico.ca/mario.dulisse2/latest.png   <---- what that paste refers too :)
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23:41.59CIA-32BRL-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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