[Bf-committers] Alembic support in Blender

Thomas Volkmann lists at thomasvolkmann.com
Sun Mar 8 12:21:17 CET 2015 

Hey Jeffrey,

can you give a short overview how you managed to build Alembic on Fedora?
That would be awesome!

Thx,
Thomas

On 03/08/2015 07:06 AM, Jeffrey wrote:
> I got Alembic building thanks to Martijn's fork on github and got
> blender building with support. I've tested that it works within blender
> and reads from stored caches. Where is the best place we can ask
> questions or give feedback? Here or on the patch tracker?
>
> On 03/05/2015 04:15 AM, Sergey Sharybin wrote:
>> Just  quick update,
>>
>> Linux build environment should be now ready for alembic.
>>
>> On Tue, Mar 3, 2015 at 9:45 PM, Jeffrey<italic.rendezvous at gmail.com>  wrote:
>>
>>> Neither can I. For what it's worth, I have tried building from their
>>> sources, which gives me a linking error, as well as with
>>> install_deps.sh, which tells me "getopt: unrecognized option
>>> --with-alembic" and --with-all does not download or build it.
>>>
>>> Also Fedora 20 x64
>>>
>>> On 03/03/2015 05:34 AM, Thomas Volkmann wrote:
>>>> I guess I have to wait for the buildbot. I didn't manage to compile
>>> Alembic on
>>>> my system (Fedora20).
>>>> Is there an estimated time when you want to set it up?
>>>>
>>>> thx,
>>>> Thomas
>>>>
>>>>
>>>>> Lukas Tönne<lukas.toenne at gmail.com>  hat am 3. März 2015 um 13:49
>>> geschrieben:
>>>>> Martijn Berger (Juicyfruit) has done a great job making an Alembic fork
>>> on
>>>>> github, to get rid of all the annoying cmake errors in Alembic sources.
>>>>>
>>>>> https://github.com/martijnberger/alembic
>>>>>
>>>>> A pull request has been made to try and get these changes into Alembic.
>>> For
>>>>> the time being i would suggest using Martijn's version, which apart from
>>>>> build file fixes is the same as official Alembic.
>>>>>
>>>>> On Tue, Mar 3, 2015 at 11:48 AM, Lukas Tönne<lukas.toenne at gmail.com>
>>> wrote:
>>>>>> I didn't manage to compile with scons yet, but that's mostly because of
>>>>>> library path issues and time constraints on my side. The buildbot also
>>> uses
>>>>>> scons, so if there are remaining issues we will fix them in the
>>> process of
>>>>>> getting the buildbot updated.
>>>>>>
>>>>>> On Tue, Mar 3, 2015 at 10:54 AM, Piotr Arlukowicz <
>>>>>> piotao at polskikursblendera.pl> wrote:
>>>>>>
>>>>>>> WOW, that's a long awaited news! Thank you Lucas!!!
>>>>>>>
>>>>>>> what about scons integration? Can I check this out?
>>>>>>>
>>>>>>> regards
>>>>>>> Pio
>>>>>>>
>>>>>>> Piotr
>>>>>>> Arlukowicz, BFCT
>>>>>>>
>>>>>>> *YT: /user/piotao?feature=guide*
>>>>>>> *FB:* */polskikursblendera* *TW:*
>>>>>>> */piotao*
>>>>>>> *Blender Network:* *https://www.blendernetwork.org/piotr-arlukowicz
>>>>>>> <https://www.blendernetwork.org/piotr-arlukowicz>*
>>>>>>> *Polski Kurs Blendera:*http://polskikursblendera.pl
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> 2015-03-02 19:24 GMT+01:00 Lukas Tönne<lukas.toenne at gmail.com>:
>>>>>>>
>>>>>>>> It's about to get real!
>>>>>>>>
>>>>>>>> The Gooseberry team would like to start using the new caching system
>>>>>>> with
>>>>>>>> Alembic ASAP. This means that we should make sure Alembic
>>> dependencies
>>>>>>> and
>>>>>>>> the library itself can be properly built and linked by Blender. First
>>>>>>> goal
>>>>>>>> is Linux (since we use it in the Blender Institute), but of course it
>>>>>>>> should work on all platforms. To avoid confusion i will specify
>>> exactly
>>>>>>>> which versions we need to use.
>>>>>>>>
>>>>>>>> The plan is to first merge the Alembic branch into our gooseberry
>>> branch
>>>>>>>> for testing and refinement. However, setting up Alembic build
>>> systems on
>>>>>>>> the official buildbot and release build systems would help avoid
>>> future
>>>>>>>> problems and smooth out the procedure of merging with master later
>>> on.
>>>>>>>> As a template for working around build system quirks the usual
>>>>>>>> install_deps.sh script is available. This builds the Alembic library
>>> on
>>>>>>> a
>>>>>>>> standard Ubuntu 14.10 installation. In addition, it tweaks a couple
>>> of
>>>>>>>> build files in the Alembic sources in order to disable certain parts
>>>>>>> that
>>>>>>>> have badly defined build scripts (examples, tests) - there may be
>>> more
>>>>>>>> proper ways of treating these build file issues.
>>>>>>>>
>>>>>>>> First a couple of links:
>>>>>>>>
>>>>>>>> Official Alembic site:
>>>>>>>> http://alembic.io/
>>>>>>>>
>>>>>>>> The branch on phabricator:
>>>>>>>>
>>> https://developer.blender.org/diffusion/B/repository/alembic_pointcache/
>>>>>>>> Can be checked out using:
>>>>>>>> git clone git://git.blender.org/blender.git -b alembic_pointcache
>>>>>>>>
>>>>>>>> The main Alembic section of the install_deps.sh script (see XXX parts
>>>>>>> ...):
>>> https://developer.blender.org/diffusion/B/browse/alembic_pointcache/build_files/build_environment/install_deps.sh;1a9c74a3a8fcd4dda3ec2ca09b3fd00e85cb0627$1733
>>>>>>>> The Alembic version we use is 1.5.5 (official release), which can be
>>>>>>>> checked out using mercurial/hg like so:
>>>>>>>> hg clone -u 1_05_05https://code.google.com/p/alembic/  <target dir>
>>>>>>>>
>>>>>>>>
>>>>>>>> The README.txt file in the Alembic source directory mentions the
>>>>>>> principle
>>>>>>>> build procedure and dependencies.
>>>>>>>>
>>> https://code.google.com/p/alembic/source/browse/README.txt?name=1_05_05
>>>>>>>> All of the mandatory dependencies are already part of the standard
>>>>>>> Blender
>>>>>>>> dependencies in their required versions, so no major additions other
>>>>>>> than
>>>>>>>> Alembic itself should be needed. For reference, here are the required
>>>>>>>> dependencies of Alembic with their minimum versions (as stated in
>>> their
>>>>>>>> README) and the current versions installed by Blender's
>>> install_deps.sh
>>>>>>>> script:
>>>>>>>>
>>>>>>>> Alembic minimum Blender Ubuntu 14.10
>>>>>>>> Boost 1.44.0 1.51.0
>>>>>>>> IlmBase 1.0.3 2.2.0
>>>>>>>> HDF5 1.8.9 ----- 1.8.12
>>>>>>>> OpenEXR 1.7.1 2.2.0
>>>>>>>> zlib (unspecified) (unspecified) 1.2.8
>>>>>>>>
>>>>>>>> HDF5 is entirely optional and can be installed to enable this
>>> container
>>>>>>>> format for file storage. The branch now uses the Ogawa format by
>>>>>>> default,
>>>>>>>> which seems to have become the new standard backend (and does not
>>> need
>>>>>>>> additional libraries). The default system version of HDF5 on ubuntu
>>> also
>>>>>>>> seems to work fine ('libhdf5-7' package).
>>>>>>>>
>>>>>>>>
>>>>>>>> Blender itself has 2 new build options:
>>>>>>>> WITH_ALEMBIC : Build with Alembic caching support. Currently this is
>>>>>>> needed
>>>>>>>> for the branch to work, otherwise there is no available
>>> implementation
>>>>>>> of
>>>>>>>> the cache interface and a number of functions would probably crash
>>>>>>> trying
>>>>>>>> to access a NULL pointer.
>>>>>>>> WITH_HDF5 : Optional linking with HDF5. This backend is not used
>>> atm, so
>>>>>>>> the build option should not be needed.
>>>>>>>>
>>>>>>>> New cmake modules FindAlembic.cmake and FindHDF5.cmake have been
>>> added
>>>>>>> to
>>>>>>>> simplify setting up library and include paths for Blender builds.
>>>>>>>>
>>>>>>>>
>>>>>>>> I would very much appreciate help in ironing out remaining issues and
>>>>>>>> getting libraries for OSX and Windows set up.
>>>>>>>> Thank you!
>>>>>>>> _______________________________________________
>>>>>>>> Bf-committers mailing list
>>>>>>>> Bf-committers at blender.org
>>>>>>>> http://lists.blender.org/mailman/listinfo/bf-committers
>>>>>>>>
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>>> --
>>> Jeffrey "Italic_" Hoover
>>>
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