IRC log for #brlcad on 20150317

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00:50.05 Notify 03BRL-CAD:starseeker * 64421 (brlcad/trunk/src/libbrep/shape_recognition.cpp brlcad/trunk/src/libbrep/shape_recognition.h brlcad/trunk/src/libbrep/shape_recognition_planar.cpp): Conceivably need to do an inside/outside test on a polyhedron, if one happens to land in the situation of being a non-fil negative volume. More complex than cylinder and other non-planar surfaces - this is not heavily tested yet.
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00:55.36 Notify 03BRL-CAD Wiki:NyahCh3ck20 * 7938 /wiki/User:NyahCheck/Survey_of_CSG_Algorithms: Survey of CSG Algorithms
01:19.59 Notify 03BRL-CAD:starseeker * 64422 brlcad/trunk/src/libged/brep.c: Put in a comb check - we need to walk the tree and create a new one, but don't have that yet.
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13:10.25 Notify 03BRL-CAD:ejno * 64423 brlcad/trunk/src/libgcv/conv/fastgen4/fastgen4_write.cpp: number IDs from 1
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14:31.47 Notify 03BRL-CAD:carlmoore * 64424 (brlcad/trunk/src/libbrep/shape_recognition.cpp brlcad/trunk/src/libbrep/shape_recognition_planar.cpp): fix spellings
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15:25.53 Notify 03BRL-CAD:ejno * 64425 brlcad/trunk/src/libgcv/conv/fastgen4/fastgen4_write.cpp: export BOTs; write hexahedron records
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15:34.45 Notify 03BRL-CAD:ejno * 64426 brlcad/trunk/src/libgcv/conv/fastgen4/fastgen4_write.cpp: export ARB8
15:41.26 Notify 03BRL-CAD:ejno * 64427 brlcad/trunk/src/libgcv/conv/fastgen4/fastgen4_write.cpp: fix several bugs
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16:15.53 Notify 03BRL-CAD:starseeker * 64428 (brlcad/trunk/src/librt/CMakeLists.txt brlcad/trunk/src/librt/primitives/brep/brep_debug.cpp brlcad/trunk/src/librt/primitives/brep/brep_local.h): Start breaking brep_debug.cpp up into individual files that group related functionality. More than just debugging logic here these days.
16:48.40 Notify 03BRL-CAD:ejno * 64429 brlcad/trunk/src/libgcv/conv/fastgen4/fastgen4_write.cpp: detect whether an ellipse is a sphere
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17:24.18 Notify 03BRL-CAD:carlmoore * 64430 brlcad/trunk/src/util/plot3-dm.c: in plot3-dm , implement h and ? for help (i.e. turn off error message if they are used)
17:34.55 Notify 03BRL-CAD:n_reed * 64431 (svn:mergeinfo ## -1,5 +1,5 ## and 7 others): record merges to brep-debug as mergedProperty Changed:----------------brlcad/trunk/brlcad/trunk/src/libged/polyclip.cpp
17:44.32 *** join/#brlcad sofat (~sofat@202.164.45.204)
18:02.36 sofat starseeker, hello
18:03.39 sofat i want to share some thing about html docs, when i converting these docs in xml I have found your html docs not supported W3C standards
18:05.07 sofat so first of all i will need to convert these docs into proper standard so in future it make more useful and easy to convert into xml
18:05.52 sofat so what your opinion?
18:21.26 Notify 03BRL-CAD:ejno * 64432 brlcad/trunk/src/libgcv/conv/fastgen4/fastgen4_write.cpp: tesselate using gcv_region_end()
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19:06.45 ujjwal Hi, I am Ujjwal Wahi, I would like to work on Online Geometry Viewer Back-end gsoc project
19:07.11 ujjwal currently going through TODO list
19:20.00 Notify 03BRL-CAD:n_reed * 64433 (brlcad/trunk/src/libbrep/intersect.cpp Property Changed: and 3 others): merge refactoring from brep-debug branch
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19:42.47 Notify 03BRL-CAD Wiki:Ujjwalwahi * 0 /wiki/User:Ujjwalwahi:
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22:27.54 *** join/#brlcad martym (~marty@2601:a:5d02:58ef:eea8:6bff:fe25:7d55)
22:29.22 martym Has anyone proposed to work on python-brlcad yet?
22:32.28 *** join/#brlcad Bennz_ (92b91fd8@gateway/web/freenode/ip.146.185.31.216)
22:33.04 Bennz_ Hay!
22:33.25 martym Hey?
22:33.52 Bennz_ I am seeking direction on ray tracer
22:35.55 Bennz_ Have you work on ray tracing libraries?
22:37.49 teepee Bennz_: did you check the idea page already?
22:54.26 *** join/#brlcad kintel (~kintel@unaffiliated/kintel)
23:01.02 Bennz_ I have done that already
23:03.23 Bennz_ My question is more specific at this time. How do you traverse BVH on ray tracer, when looking for ray intersection? and what is the data structure used?
23:04.39 teepee ahh, ok. sorry, can't help with that. just hang around a bit, someone else can probably answer
23:04.50 Stragus It's a tree, so top-down while entering all boxes that are intersec the ray's path; if both intersect, closer box then the other one
23:06.05 Stragus ... "all boxes intersecting* the ray's path" ...
23:08.32 Bennz_ Which particular file is this on. Is it on intersect.cpp?
23:09.14 Stragus Ah oops, I was talking about BVHs for raytracing generally
23:09.29 Stragus I have done plenty of raytracing but I'm not familiar with BRL-CAD's raytracer source
23:10.30 Bennz_ Have you look into their libraries?
23:11.23 Bennz_ I am looking for files to start reading the code from.
23:11.30 Stragus Very little, but I can answer general raytracing questions if you have any, I wrote a triangle raytracer in CUDA (and SSE/AVX)
23:13.22 Bennz_ There are so many files and I need to know how their code is written. So that I can start from there.
23:13.44 ``Erik rt_shoot() would be the func to start digging in, um, iirc, "pieces" is an important keyword
23:14.19 ``Erik rt_shootray(), sorry
23:15.44 Bennz_ that sounds like to shoot a ray. I am looking for Intersection and ray hit or miss.
23:17.06 Stragus If you follow the code starting from rt_shootray(), you'll surely find all that
23:21.33 Bennz_ the rt folder is a bit complicated there are some many files such as view, curves, cell, walk etc. I am not sure if I need all this for a proposal.
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