[Soc-2014-dev] Weekly Report #2 Shape Key Enhancements

[Sergey Sharybin]

Hi,

You can also look into gperftool. Was using it a lot.


On Sat, May 31, 2014 at 1:49 AM, Grigory Revzin <revzingg at gmail.com> wrote:

> Thanks for the profiling tips! Seems like a good place to learn gcc when I
> run into some more complicated profiling :)
>
> Regarding the linked shape keys, it seems that they indeed are in
> read-only mode... and that is the problem! They are all there, but the user
> can't animate them. I guess this is because animating the shapes means
> updating their values in the library and as I see Blender doesn't permit
> such kind of edits in the linked data? Even if I make a proxy object for an
> object with shapes, they aren't animatable unless I make the Mesh local.
> Will look into it deeper
>
> Thanks for the comments, Bastien! I'll go through them tomorrow evening
>
> Thanks,
> - Grigory
>
>
>
>
> On Fri, May 30, 2014 at 10:21 PM, Lukas Tönne <lukas.toenne at gmail.com>
> wrote:
>
>> PIL profiling is sufficient when you want to examine just a single
>> function. For more complete profiling you could use gprof, which works fine
>> with gcc (not sure about clang, think it works there as well). I've been
>> using it in combination with a nifty little py tool called gprof2dot [1],
>> which turns gprof output into a fancy graphviz image, so following
>> convoluted callstacks becomes easier.
>>
>> [1] https://code.google.com/p/jrfonseca/wiki/Gprof2Dot
>>
>>
>> On Fri, May 30, 2014 at 7:21 PM, Bastien Montagne <montagne29 at wanadoo.fr>
>> wrote:
>>
>>>  Hi Grigory,
>>>
>>> About profiling, we generally simply use helpers from
>>> PIL_time_utildefines.h (in blenlib)…
>>>
>>> As for lib data, I’m not a great expert in this area, but I think since
>>> skeys are just mesh sub-data, it should not be hard to access them in
>>> readonly mode? Other coders should know better though, imho.
>>>
>>> Btw, did you see the comments I put on your proposal?
>>> http://wiki.blender.org/index.php/User:Revzin (UI topic is still a bit
>>> fuzzy…).
>>>
>>> Cheers,
>>> Bastien
>>>
>>>
>>> On 30/05/2014 17:14, Grigory Revzin wrote:
>>>
>>> Hello everyone
>>>
>>>  This was an academically tough week, but I've managed to clear the
>>> next week for half-time work and two weeks after that for (almost) full
>>> time gsoc!
>>>
>>>  This week:
>>> - Still struggling with making editmode mixing work, didn't have time to
>>> finish it, but almost there now.
>>> - Caught a crash in hashing if an edge didn't have any faces
>>>  - From a disussion with an artist a decision was made to implement
>>> compression of shape key data on disk save by storing only the vertices
>>> that have changed their positions in a given keyblock
>>>
>>>  Problems:
>>> - Shape keys on linked data aren't accessible from the UI and this needs
>>> to be sovled. Is this a deep problem that I can add into gsoc targets?
>>>  - Is there a standard way to profile Blender code for time?
>>>
>>>  Thanks,
>>> Grigory
>>> --
>>> Г. Г. Ревзин
>>>
>>>
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>>>
>>>
>>>
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>>
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>>
>
>
> --
> Г. Г. Ревзин
>
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>
>


-- 
With best regards, Sergey Sharybin
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