On Tue, Mar 8, 2016 at 10:35 PM, benson chepkwony <bchepk...@att.net> wrote:
> Hay Costa,
> I am interested with this project titled "Ray tracing performance,
> coherent boolean evaluation". I understand you worked on this project last
> year, that is good. However, I was wondering if you could further elaborate
> what you did with the coherency and which area did your research reside in?
>
> I am not sure about this but since it is a continuation of your work, I am
> not sure if we have to apply and use the coherency Techniques that you
> applied?
>
> How is the Ray Tracing working out at this point? and what area need to be
> further research? Do we need to understand your code fully to work on this
> project?
>
> What files in the binary is this project located?
>
Welcome aboard.
You can see the Blog of my activities last year if you are interested in
what I actually did.
http://brlcad.org/wiki/User:Vasco.costa/GSoC15/logs
Basically what I did was a port of the basic ray tracing pipeline to an
OpenCL GPU environment. This includes numerous supported primitives. What
it doesn't support is boolean evaluation i.e. CSG (Constructive Solid
Geometry) operations. Anyone interested in working on the OpenCL ray tracer
should get familiar with the BRL-CAD code e.g. by making a patch to add
OpenCL acceleration to an existing primitive like 'eto'.
Afterwards we can look at how the standard BRL-CAD rt pipeline does CSG ops
and how to achieve this in a GPU amenable fashion. For this I will you give
you pointers for where to start reading the code. But be prepared for some
rough sailing. I have a rough outline of how this can be done but you guys
need to get a feel for it and I want your own opinion on how to do it. I
already have mine. :-)
Read all the e-mail correspondence I have had with Param Hanji <
param.catchch...@gmail.com> in this list. Since both of you guys seem to be
interested in the same subject:
https://sourceforge.net/p/brlcad/mailman/brlcad-devel/
There is enough work here for two people but we need to figure out what
your strengths are, get you guys to understand the problems, so you can
figure out which approach or which part you want to work on. What I do not
know is how is the workshare allocation for GSoC this year.
All the best,
-Vasco Costa
> Thank you.
>
> From,
> Benson Chepkwony
>
--
Vasco Alexandre da Silva Costa
PhD in Computer Engineering (Computer Graphics)
Instituto Superior Técnico/University of Lisbon, Portugal
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