Where do I get the BRLCAD 7.24.0 repo at the github.com? Is it located in one
path or you have to assemble it from multiple repo paths?
Do you need any permission to download or make a repo?
Also do you have to compile these libraries once you download?
I am not sure if you need every bit of BRLCAD libraries or just a specific area
that you are working on.
From,
Benson
On Saturday, March 7, 2015 10:15 AM, benson chepkwony <bchepk...@att.net> wrote:
I downloaded BRLCAD 7.24.0 binary for Windows OS and I could not find some of
these Libraries that I am suppose to work with:
src/other/opennurbs
src/librt/primitives/brep
src/librt/opennurbs_ext.*
include/brep.h
src/proc-db/csgbrep.cpp
src/proc-db/brep*
On Windows OS binary I was able to find the following Libraries:
lib/openNURBS and lib/openNURBS-static
lib/libbrep and lib/libbrep-static
lib/librt and lib/librt-static
include/brlcad/brep.h
I could
not find these libs, for windows:
src/librt/primitives/brep
src/librt/opennurbs_ext.*
src/proc-db/csgbrep.cpp
Another Question:
I would like to test ray tracing for performance especially the NURBS, then
profile while it executes.
Where can I get a test case to run BRLCAD?
I would like a test case that will call or that uses NURBS ray tracing, NURBS
Intersection etc.
From,
Benson
On Friday, March 6, 2015 3:16 PM, Christopher Sean Morrison <brl...@mac.com>
wrote:
On Mar 6, 2015, at 4:32 PM, benson chepkwony <bchepk...@att.net> wrote:
I am interested in "optimizing NURBS ray tracing" or "coherent ray tracing
optimization"
>
>
>You Mentioned that:
>"We do implement NURBS geometry ray tracing, but not using a high-performance
>data-coherent method."
>Do you have any "data-coherent method" in mind?
This is not a simple discussion. Data coherency is not an algorithm you apply.
You’ll need to do a lot of homework if you don’t already have experience with
writing high-performing cache-coherent code:
http://en.wikipedia.org/wiki/Cache_coherence
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.16.8749&rep=rep1&type=pdf
http://www.cs.utah.edu/~shirley/irt/RT06_Course_LOD.pdf
https://fenix.tecnico.ulisboa.pt/downloadFile/3779574461367/RealTimeRayTracing.pdf
http://cseweb.ucsd.edu/~ravir/whitted.pdf
The second one from 2001 is particularly relevant, but they’re all good
resources you should understand in depth if you’re going to propose a GSoC
project in that area. Expecting to learn it during the GSoC coding window will
not work.
Lastly, Should I conduct Profiling to identify bottleneck and NURBS "Hot Spots"
in order to tell where I should put focus on?
You should always profile when doing any optimization work. You’ll want to
profile to write a decent project proposal involving optimization.
Cheers!
Sean
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news, videos, case studies, tutorials and more. Take a look and join the
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