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| 00:37.52 | *** join/#brlcad rdvon (n=47e3ff3c@bz.bzflag.bz) |
| 00:38.12 | rdvon | what is this brlcad? |
| 00:38.31 | rdvon | ... |
| 00:38.41 | rdvon | i cant join any other channels!!! |
| 00:38.48 | rdvon | ...ugh... |
| 00:39.01 | rdvon | well, this sux |
| 00:39.19 | rdvon | maybe this app is worth talking about... it is 3d i presume. |
| 00:39.23 | rdvon | better the blender? |
| 00:39.32 | rdvon | thats what i use |
| 00:39.37 | rdvon | blender.org |
| 00:39.46 | rdvon | :D |
| 00:39.56 | rdvon | ok, dont talk |
| 00:39.56 | rdvon | haha |
| 00:40.00 | rdvon | bye! |
| 00:41.40 | bjorkBSD | hehehe |
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| 02:16.28 | CIA-14 | BRL-CAD: 03brlcad * 10brlcad/src/bwish/tcl.c: stash argv[0] |
| 02:16.44 | CIA-14 | BRL-CAD: 03brlcad * 10brlcad/src/bwish/main.c: emphasize any errors, separate out result. |
| 02:19.26 | CIA-14 | BRL-CAD: 03brlcad * 10brlcad/src/tclscripts/Makefile.am: encourage finding init.tcl, set TCL_LIBRARY |
| 02:24.54 | CIA-14 | BRL-CAD: 03brlcad * 10brlcad/src/tclscripts/ (ampi.tcl ami.tcl): |
| 02:24.54 | CIA-14 | BRL-CAD: the script wasn't correctly parsing multiple directory paths and also similarly |
| 02:24.55 | CIA-14 | BRL-CAD: did not function with a distcheck or other compilation out of place. It still |
| 02:24.55 | CIA-14 | BRL-CAD: has a problem if it cannot write to the source dir since the index is created |
| 02:24.55 | CIA-14 | BRL-CAD: where the sources files are. |
| 02:36.05 | CIA-14 | BRL-CAD: 03brlcad * 10brlcad/src/libtclcad/tclcadAutoPath.c: |
| 02:36.05 | CIA-14 | BRL-CAD: add support for running successfully from a distcheck and identifying the tcl |
| 02:36.05 | CIA-14 | BRL-CAD: resources. also set tcl_library so that init.tcl is identified. add a |
| 02:36.05 | CIA-14 | BRL-CAD: tclcad_tcl_library() routine for debug printing of what tcl_library is set to. |
| 02:36.05 | CIA-14 | BRL-CAD: now only appends to auto_path if the dirs exist. |
| 02:36.49 | CIA-14 | BRL-CAD: 03brlcad * 10brlcad/include/tclcad.h: declare tclcad_tcl_library() |
| 03:38.17 | IriX64 | heh |
| 03:38.39 | IriX64 | trying my hand at gcc-4.3 |
| 03:40.25 | IriX64 | brlcad has been busy :) |
| 03:41.32 | CIA-14 | BRL-CAD: 03johnranderson * 10brlcad/src/tclscripts/mged/comb.tcl: text widget option -tab is now an illegal abbreviation for -tabs (as of tcl 8.5). Changed -tab to -tabs. |
| 04:28.00 | *** join/#brlcad cad56 (n=8968dbfc@bz.bzflag.bz) |
| 05:44.14 | IriX64 | http://www.pastebin.ca/420507 |
| 06:33.07 | IriX64 | egg on my face ... mea culpa |
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| 13:02.55 | CIA-14 | BRL-CAD: 03brlcad * 10brlcad/src/tclscripts/html_library.tcl: 8.5 now seems to use -tabs for text widgets instead of -tab |
| 14:16.38 | clock_ | Is there some software that produces a metric thread for BRL-CAD? |
| 14:16.54 | clock_ | Where I would say like 40mm of M5 thread? |
| 14:17.36 | brlcad | hm, not really |
| 14:17.54 | brlcad | you could do the math and use the pattern tool fairly easily, but it'd be a bit fugly |
| 14:18.00 | clock_ | is it theoretically possible to produce a thread from BRL-CAD primitives without approximation? |
| 14:18.33 | brlcad | yes, intersecting tori and/or pipe sections |
| 14:18.57 | clock_ | how can a thread be done this way? |
| 14:19.27 | clock_ | I can't imagine |
| 14:19.49 | brlcad | the easiest way is to subtract a winding pipe from an enlarged cylinder iirc |
| 14:20.04 | clock_ | so it reduces down to modelling a coil spring? |
| 14:20.09 | brlcad | basically |
| 14:20.23 | brlcad | since it's subtracted and tightly fit, you end up with a thread |
| 14:20.31 | clock_ | and coil spring is a pipe, where the centerline is a helix? |
| 14:20.54 | brlcad | there's a few threading patterns you can't create that way, but in general, it'll do basic bolt threadings |
| 14:21.42 | brlcad | yes, basically |
| 14:21.56 | clock_ | is it possible to specify a helix for the pipe primitive directly? |
| 14:25.37 | brlcad | if you use a pipe, it's manual specification of the winding |
| 14:25.54 | brlcad | using the pattern tool with half-tori would probably be easier |
| 14:26.21 | clock_ | but half-tori are just an approximation of a helix, aren't they? |
| 14:34.59 | brlcad | depends on the helix |
| 14:35.32 | clock_ | now I am talking about spiral spring |
| 14:35.52 | clock_ | x=cos angle, y=cos angle, z=const*angle |
| 14:35.59 | clock_ | sorry y=sin angle |
| 14:37.30 | clock_ | can such a helix be made from half-tori without distortion? |
| 14:42.38 | brlcad | intuition says yes, but I'd have to test the math out on paper, or just try it |
| 14:42.54 | clock_ | my intuition says that no |
| 14:44.19 | clock_ | can I generate points on a spiral and then tell BRL-CAD to connect them with a pipe? What interpolation does BRL-CAD do? |
| 14:44.38 | clock_ | bezier curve? b-spline? NURBS? |
| 14:46.01 | brlcad | "can I generate points on a spiral and then tell BRL-CAD to connect them with a pipe?" => no, that's not how pipes are specified |
| 14:46.18 | brlcad | they're specified as points and bend radii |
| 14:46.35 | brlcad | volume III covers an example or two |
| 14:47.34 | clock_ | the bend radii are specified in the points? |
| 14:47.53 | clock_ | i. e. do I have 4 points and 4 radii, or 4 points and 3 radii? |
| 14:49.09 | clock_ | or one could approximate the spiral from a set of circular slices, which would be stacked excentrically, the next one always rotated a bit. |
| 14:49.35 | clock_ | and then ask BRL-CAD to put a slanted cylinder between the slices. Can I have slanted cylinders? |
| 14:51.08 | brlcad | heh, sure |
| 14:51.21 | brlcad | though that's a piecewise approximation |
| 14:51.49 | brlcad | piecewise torii would be better still if cylinders worked |
| 14:52.05 | clock_ | actually the shape of the thread could be programmed by using different oval than circle |
| 14:52.07 | brlcad | since they can match the radius of the shaft being sliced |
| 14:52.47 | clock_ | I guess if one converted the thread profile into polar coordinates, he would directly obtain the shape that needs to be stacked. |
| 14:53.28 | clock_ | With pipes, do I have 4 points and 4 radii, or 4 points and 3 radii? |
| 14:54.23 | brlcad | i have no idea what/which points you're referring to there to answer that correctly |
| 14:54.35 | clock_ | the points and radii you mentioned |
| 14:54.36 | brlcad | did you read the tutorial? |
| 14:54.38 | clock_ | no |
| 14:55.19 | clock_ | actually how one can make animation where something changes in the scene? |
| 14:55.50 | clock_ | an animation that is not merely a flythrough of a static scene, but a scene where's something dynamically moving withing the scene? |
| 14:56.00 | brlcad | you can either script and dynamicly change, or use "joints" |
| 14:56.08 | clock_ | joints? |
| 14:56.14 | brlcad | there's a joint primitive |
| 14:56.27 | brlcad | it's a poor-man's constraint system |
| 14:56.38 | brlcad | for simple movements |
| 14:57.00 | clock_ | is the joint something like a hinge? |
| 14:57.16 | brlcad | a hinge could be a joint, but joints are more generic |
| 14:57.51 | brlcad | it's what's used in our animations where a tank maybe drives down a street, rotates a turret, fires, etc |
| 14:57.53 | clock_ | so if I want 2 cubes, one stays and the other is approaching the first one, how many joints do I use and where do I put them? |
| 14:58.07 | clock_ | never seen an animation of a tank in BRL-CAD |
| 14:58.15 | clock_ | just the Stryker picture do you have public animations? |
| 14:58.25 | brlcad | ah, true .. i suppose they're not on the site |
| 14:58.35 | clock_ | they are secret and cannot be released? |
| 14:58.44 | brlcad | no, just not readily available |
| 14:58.57 | brlcad | I mean I have a whole drawer of tapes if you want to come on over ;) |
| 14:59.07 | clock_ | punch tapes or magnetic tapes? |
| 14:59.16 | brlcad | heh, vhs |
| 14:59.22 | brlcad | and a few betamax |
| 15:00.01 | brlcad | some were direct-to-tape, so they'd need to be digitized, others have a digital copy somewhere of the animation .. would have to hunt a bit |
| 15:00.08 | clock_ | nice |
| 15:00.14 | clock_ | what do you have? |
| 15:00.22 | clock_ | tanks, what else? |
| 15:01.07 | brlcad | of the releasable stuff .. mm, some missiles flying over terrain |
| 15:01.36 | brlcad | all made quite a long while ago, and all just thrown together for a particular pupose |
| 15:01.49 | brlcad | animation isn't really a strong point or high/frequent demand item |
| 15:02.01 | brlcad | most of the tools for working with animations are a pita |
| 15:02.32 | brlcad | really needs someone to revamped it all, new interface |
| 15:02.36 | clock_ | For DIY instructions, animation can be very helpful. |
| 15:03.41 | clock_ | Have you seen already this? http://ronja.twibright.com/ronja_video.php |
| 15:04.00 | clock_ | It already gives people much better impression what shape Ronja actually has, than just some real installation pictures from a roof. |
| 15:05.03 | brlcad | yep, love it |
| 15:07.23 | clock_ | thanks |
| 15:07.42 | clock_ | do you think it actually helps over series of real-life pictures? |
| 15:07.55 | brlcad | actually, yeah, I think it does |
| 15:08.17 | clock_ | even better would be a video in the style of the LEGO kit instructions |
| 15:08.37 | clock_ | like Ronja in various stage of completion, where each stage would be turned once around so you can get an idea how it's put together |
| 15:08.41 | brlcad | now to model the building/rooftop/whatever that it attaches to, then the city that the building is in, then the remove transmitter/receiver.. ;) |
| 15:09.25 | brlcad | ah yes.. I should show you the tank video.. the tank is "assembled" in pieces with portions dropping in from the sky |
| 15:09.41 | clock_ | wow |
| 15:09.43 | clock_ | LEGO tank |
| 15:10.07 | brlcad | the suspension system, the engine, the fuel/wiring, the crew, the body/armor, the turret |
| 15:10.37 | clock_ | and then a rocket is fired at the tank and the tank disassembled, with pieces falling from the sky? |
| 15:10.41 | clock_ | The crew, the...? ;-) |
| 15:10.50 | brlcad | ``Erik: http://www.unitedmedia.com/comics/pearls/ |
| 15:11.51 | clock_ | do you have it in VHS or as digital data? |
| 15:12.12 | brlcad | definitely vhs, dunno about digital |
| 15:12.29 | clock_ | do you have a VHS player and a video capture card? |
| 15:12.32 | brlcad | there are intentions to digitize them sometime anyways, just need to gather the equipment |
| 15:13.10 | brlcad | maybe something to give to a summer student |
| 15:15.11 | clock_ | If I have a thousand little cylindrical slices stacked, does it slow down BRL-CAD? |
| 15:15.47 | clock_ | Does BRL-CAD have some clever efficient algorithm to actually deal only with those slices that are close to the ray fired? |
| 15:18.47 | brlcad | there is spatial partitioning to keep things rendering quickly |
| 15:19.05 | clock_ | something like a 3D tree? |
| 15:19.09 | brlcad | though there's limits to what is possible.. it will invariably slow down some as more primitives are added |
| 15:19.16 | brlcad | yes, very much a 3D tree |
| 15:19.39 | brlcad | hybrid bsp tree of sorts |
| 15:19.49 | clock_ | so the creator of the model doesn't have to bother if he needs a lot of primitives? |
| 15:20.33 | brlcad | depends, like I said there are limits |
| 15:20.46 | brlcad | and pathalogically poor construstruction hierarchies |
| 15:21.13 | brlcad | e.g. if you just union 10,000 primitives, that's going to hit a limit |
| 15:21.47 | brlcad | if there's a logical grouping, or ways to reference instead of replicate, that will help |
| 15:25.48 | clock_ | if I do a brick, group it with mortar, then group a row of bricks and group a column of rows, and end up with 10,000 bricks, that's OK? |
| 15:26.10 | brlcad | yeah, that should be fine |
| 15:26.15 | brlcad | preferred even |
| 15:26.33 | brlcad | just not 10k bricks all grouped into one object |
| 15:26.51 | brlcad | there's a practical limit per-object to the number of members in a combination |
| 15:27.09 | brlcad | and a counterpoint practical limit to how deep that hierarchy should get |
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| 18:03.29 | ``Erik | /t new unified physics model: "Beer is good." |
| 19:07.02 | *** join/#brlcad clock_ (i=clock@84-72-61-97.dclient.hispeed.ch) |
| 19:33.58 | IriX64 | http://www.pastebin.ca/421309 brlcad, is this me or you? been fighting it for a while. |
| 19:37.22 | IriX64 | ``Erik shouldn't that be bier :) |
| 19:43.03 | ``Erik | huh, broken tcl build... hain't seein' that on any other platforms to my knowledge o.O |
| 19:43.34 | IriX64 | ty man sigh it *used to work :) |
| 19:45.07 | ``Erik | you don't want to hear this... but maybe try doing a "make clean", then build... |
| 19:45.29 | IriX64 | way ahead of you :) |
| 19:45.34 | IriX64 | trying distclean |
| 19:46.05 | ``Erik | distclean will purge the configure generated files |
| 19:46.17 | ``Erik | are you working out of CVS, or the tarball? |
| 19:46.21 | IriX64 | www.irix64.spaces.live.com/photos/brlcad < === if you want to see terra (rt bombs on it but it extracts) |
| 19:46.25 | IriX64 | tarball |
| 19:46.41 | ``Erik | might as well just delete the tree and re-extract, no point in 'mortal users' doing distclean |
| 19:46.54 | IriX64 | heh ill try that |
| 19:47.24 | IriX64 | when i screw something up i screw it up good eh ;) |
| 19:47.55 | ``Erik | of course, if you extract it fresh and it fails, that obviously means you did something to break your environment... :) |
| 19:48.30 | IriX64 | was playing with tcl/tk 8.5 those are now going bye bye |
| 19:48.36 | IriX64 | 8.5a5 |
| 19:48.38 | ``Erik | <-- has seen people argue that before *shrug* :) |
| 19:48.59 | IriX64 | i don't argue ``Erik. |
| 19:49.27 | ``Erik | 8.5a5 is the tcl/tk version in cvs at the moment I think... the tarball should have come with 8.4 |
| 19:49.51 | IriX64 | talking system library ``Erik |
| 19:50.41 | ``Erik | ok, if you have issues binding to the system lib, there may be an API difference or internal behavior that'd cause naughtiness... if you see that, your best bet is to use --enable-tcl-build --enable-tk-build to use the included versions :/ |
| 19:51.08 | IriX64 | ty |
| 19:52.25 | IriX64 | probably a conflict |
| 19:52.57 | ``Erik | perhaps, or a broken system tcl... or *shrug* it may be worth looking into once things settle down a little :) |
| 19:53.22 | IriX64 | i'm back where i wass if it builds ill let you know |
| 20:06.20 | CIA-14 | BRL-CAD: 03erikgreenwald * 10rtcmp/rtcmp.c: subtract the "dry" run from cpu times for the "speedup" measure |
| 20:08.01 | CIA-14 | BRL-CAD: 03erikgreenwald * 10rtcmp/adrt/adrt.c: a couple notes after meeting with twingy (adrt/libtie author) |
| 20:10.22 | IriX64 | so when is brlcad going to ship with a new os to run it on :P |
| 20:32.46 | IriX64 | libbu is building |
| 20:34.36 | IriX64 | http://www.pastebin.ca/421416 <--- not a bug, just if you're interested |
| 21:04.51 | ``Erik | um, if you want an OS where BRL-CAD works dandy without issue, feel free to download linux or freebsd, they can both be legally procured free of charge (and with minimal license constraint) and are OS's the developers actually touch... |
| 21:11.06 | IriX64 | when you get brlcad ported to a pm app let me know :P |
| 21:13.04 | IriX64 | http://www.pastebin.ca/421484 <----- where do i find out what this errno means? |
| 21:13.57 | IriX64 | mmmm might still be me, don't jump the gun. |
| 21:19.30 | IriX64 | http://www.pastebin.ca/421492 <---- something wrong here? |
| 21:35.18 | IriX64 | http://www.pastebin.ca/421506 < --- I just did this to tcl and tk checklibs is my logic flawed? |
| 21:37.21 | IriX64 | says it'll build it :) |
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| 22:19.20 | *** mode/#brlcad [+o brlcad] by irc.freenode.net |
| 22:22.32 | IriX64 | ~seen valarq |
| 22:23.11 | ibot | valarq <i=vq@90-225-114-111-no122.tbcn.telia.com> was last seen on IRC in channel #brlcad, 189d 3h 45m 15s ago, saying: 'you're filling my 0.5TB raid in my mailserver :P'. |
| 22:23.11 | IriX64 | mmm is this supported? |
| 22:24.04 | IriX64 | heh |
| 22:29.19 | IriX64 | farkles....error12 |
| 22:29.42 | IriX64 | ampi.tcl, i wonder |
| 22:30.42 | IriX64 | pkgindex.tcl |
| 22:36.08 | IriX64 | nap time:) l8r |
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