Hi,
Thank you so much for the detailed guidance. Having gone through all the
reference codes given, I've successfully ported the SUPERELL primitive to
OpenCL. I'll try to do the same for HYP and others as well before the final
application deadline. Should I proceed with drafting the proposal for
review or is there something else that needs to be done?
Eagerly looking to your revert.
Warm Regards,
*Sreyansh Kumhar Jain*
4th Year Undergraduate Student
Department of Mechanical Engineering
Indian Institute of Technology, Kharagpur
*+91-9933958066*
sreyanshjai...@gmail.com
Facebook <https://www.facebook.com/sreyansh.sonu> | LinkedIn
<https://www.linkedin.com/in/sreyansh-kumhar-jain-a61428104/>
On Tue, Mar 6, 2018 at 10:56 PM, Vasco Alexandre da Silva Costa <
vasco.co...@gmail.com> wrote:
> Hello!
> You can start by implementing one of the primitives which hasn't been
> ported over to OpenCL yet.
> There were a lot of issues with porting the HRT primitive last year,
> probably because of the solver, so I would advise you to try to port
> something simpler like either HYP or SUPERELL which shouldn't have any
> issues.
>
> There is a quick reference guide to BRL-CAD MGED commands and primitives
> here:
> http://brlcad.org/w/images/5/52/MGED_Quick_Reference_Card.pdf
>
> Here is a reference card for OpenCL 1.2 (what we currently use) commands
> and language constructs:
> https://www.khronos.org/files/opencl-1-2-quick-reference-card.pdf
>
> I code for BRL-CAD using the Linux operating system. The other developers
> typically use either that or Mac OS X.
> Make sure to setup your development environment and install OpenCL on your
> system. This program might be of help since it queries the installed OpenCL
> versions to determine the supported version, etc:
> https://github.com/simleb/clinfo
>
> You should provide a patch for that primitive (HYP or SUPERELL) before
> GSoC officially starts. It shouldn't be too hard to do since you can use
> one of the other already ported primitives (like ELL) as a template. You
> basically need to port the ray-primitive intersection (shot) code from C to
> OpenCL and to provide the glue code which packs and unpacks that primitive
> from the C side to the OpenCL side.
>
>
> I have a task list, of things to do, for the OpenCL ray tracer here:
> http://brlcad.org/wiki/User:Vasco.costa
>
> You can use this as a basis to write your actual proposal. Of the things
> in that todo list I would say that PIPE, DSP, BOT plate mode, and BREPs are
> the most significant.
>
> Before you write the proposal and allocate time for the tasks you should
> read the relevant code that you will have to port from ANSI C/C++ to OpenCL
> to get an idea of the complexity of the tasks. Most of the relevant code is
> located in this code tree:
> https://svn.code.sf.net/p/brlcad/code/brlcad/trunk/src/librt/primitives/
>
> Regards,
>
> On Tue, Mar 6, 2018 at 4:28 PM, Sreyansh Jain <sreyanshjai...@gmail.com>
> wrote:
>
>> Hi,
>>
>> I'm new to the open source community but I'm well-versed with Python, C
>> and CUDA while a beginner in OpenCL. I went through the project ideas list
>> and I believe I can contribute to one on *GPGPU Raytracing*. Can you
>> guide me on how to start contributing to these as of now. I hope I'm not
>> that late.
>>
>>
>> Warm Regards,
>>
>> Sreyansh Kumhar Jain
>> 4th Year Undergraduate
>> IIT Kharagpur
>>
>>
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>>
>>
>
>
> --
> Vasco Alexandre da Silva Costa
> PhD in Computer Engineering (Computer Graphics)
> Instituto Superior Técnico/University of Lisbon, Portugal
>
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>
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