When I use *rt -o render_X.png -s2048*, it is showing something like:-
Error: Can't open 'render_X.png' for reading/writing (permission denied).
But it is working when I use *rt -z render_X.png -s2048*.
I'm unable to gauge why!
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 Thu, Mar 15, 2018 at 4:03 AM, Christopher Sean Morrison <brl...@mac.com>
wrote:
> Thank you! ... two questions. One, what do the renderings look like? Two,
> is the performance any better if you give it more work?
>
> Maybe compare: rt -o render_X.png -s2048
>
> Cheers!
> Sean
>
> On Mar 14, 2018, at 6:00 PM, Sreyansh Jain <sreyanshjai...@gmail.com>
> wrote:
>
> Hi,
>
> I've attached the screenshots for your reference. I hope this is what you
> were looking for.
>
> 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 Wed, Mar 14, 2018 at 12:44 PM, Christopher Sean Morrison <
> brl...@mac.com> wrote:
>
>> Screenshot? :)
>>
>> Ideally a comparison of superell from non-opencl next to the same
>> rendered via opencl…
>>
>> Cheers!
>> Sean
>>
>>
>> On Mar 13, 2018, at 5:48 PM, Sreyansh Jain <sreyanshjai...@gmail.com>
>> wrote:
>>
>> Hi,
>>
>> I've submitted the patch file. Do let me know suggestions for that, if
>> any. I'll share the rough initial draft of the proposal for your review and
>> recommendation soon.
>>
>>
>> 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 13, 2018 at 7:40 AM, Christopher Sean Morrison <
>> brl...@mac.com> wrote:
>>
>>> Sreyansh,
>>>
>>> Before moving onto other primitives, please submit a patch file with
>>> your changes (including any new files) and demonstrate the superell working
>>> via OpenCL…
>>>
>>> You should definitely be drafting a proposal for review at this point.
>>> Proposal submissions opened today.
>>>
>>> Cheers!
>>> Sean
>>>
>>>
>>> On Mar 12, 2018, at 5:50 PM, Sreyansh Jain <sreyanshjai...@gmail.com>
>>> wrote:
>>>
>>> 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
>>>>>
>>>>>
>>>>> ------------------------------------------------------------
>>>>> ------------------
>>>>> Check out the vibrant tech community on one of the world's most
>>>>> engaging tech sites, Slashdot.org <http://slashdot.org/>! http://sd
>>>>> m.link/slashdot
>>>>> _______________________________________________
>>>>> BRL-CAD Developer mailing list
>>>>> brlcad-devel@lists.sourceforge.net
>>>>> https://lists.sourceforge.net/lists/listinfo/brlcad-devel
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Vasco Alexandre da Silva Costa
>>>> PhD in Computer Engineering (Computer Graphics)
>>>> Instituto Superior Técnico/University of Lisbon, Portugal
>>>>
>>>> ------------------------------------------------------------
>>>> ------------------
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>>>> https://lists.sourceforge.net/lists/listinfo/brlcad-devel
>>>>
>>>>
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>>
> <superell_c.png>
>
> <superell_cl.png>
>
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