[Bf-committers] Collada importer/exporter kickout

Juan Linietsky reduzio at gmail.com
Thu Jan 12 04:27:27 CET 2012 

Not a patch, but here's my collada importer, it's really simple, very
complete feature wise and very compatible.
Main file: collada.*
Simple xml parser: xml_parser.*
Stuff that loads into middleare: scene_format_collada.*

Probably the way to go is to just integrate the simple xml parser and then
try to port collada.h/collada.cpp,
later use the data (using scene_format_collada.* as reference) to import it
to blender. If any help is needed, drop me a mail.

Cheers!

Juan Linietsky



http://dl.dropbox.com/u/53086520/colladaimport.zip


On Wed, Jan 11, 2012 at 7:06 AM, Ton Roosendaal <ton at blender.org> wrote:

> Hi,
>
> You can count on plenty of people jumping on a patch if you publish it.
> Don't understimate the power of having many eyes looking. If it requires
> more expertise or IO experience, Campbell is around to check on it too.
>
> -Ton-
>
> ------------------------------------------------------------------------
> Ton Roosendaal  Blender Foundation   ton at blender.org    www.blender.org
> Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The Netherlands
>
> On 10 Jan, 2012, at 23:39, Juan Linietsky wrote:
>
> > Heh I wanted to emphasize that it works, but I seriously do need to work
> > with someone familiar with writing blender and/or blender import plugins
> in
> > C++ to do it, who can take my code and adapt it to Blender. It should be
> a
> > short task for someone with that experience.
> >
> > Cheers
> >
> > Juan
> >
> >
> > On Tue, Jan 10, 2012 at 6:53 PM, Daniel Salazar - 3Developer.com <
> > zanqdo at gmail.com> wrote:
> >
> >> That sounds *very* exciting and *very* appropriate for our needs :) OC
> ads
> >> too much weight to Blender's big ass
> >>
> >> Daniel Salazar
> >> 3Developer.com
> >>
> >>
> >> On Tue, Jan 10, 2012 at 3:48 PM, Juan Linietsky <reduzio at gmail.com>
> wrote:
> >>
> >>> I didn't realize a collada exporter was so important. If so..
> >>>
> >>> I have a *very* *tested* and *very* *small* collada importer in my
> >>> middleware stuff (~3k lines of C++ code). It supports pretty much
> >>> everything (models, skeletons, materials, cameras, lights, morphs,
> >> any-axis
> >>> orientation, animations with matrices or curves, etc).
> >>>
> >>> Given it's very small size and non-dependency on OC, it's very easy to
> >>> understand and *very easy to mantain*. It pretty much just ignores
> >>> conformance of input files and just attempts to grab wathever data it
> >> needs
> >>> so *compatibility is extremely high*.
> >>>
> >>> It's not a standalone library, but it's separated enough that *if
> someone
> >>> knowledgable of blender internals *wants to give a try to adapting it
> to
> >>> blender (of course with me 100% available for answering questions with
> >>> this), i think in a matter of a few hours we can solve the Blender
> >> problem
> >>> of collada import support. However as I said in previous mails, I
> really
> >>> lack the time to get familiar with Blender internals and do this
> myself.
> >>>
> >>> Cheers
> >>>
> >>> Juan Linietsky
> >>>
> >>>
> >>> On Tue, Jan 10, 2012 at 11:30 AM, Erwin Coumans <
> erwin.coumans at gmail.com
> >>>> wrote:
> >>>
> >>>> Until Blender has good fbx import or an alternative collada import
> >>>> (python?) it would be good to postpone dropping OpenCollada.
> >>>>
> >>>>> From the feedback, some people are using the import feature, and
> there
> >>> is
> >>>> no replacement.
> >>>>
> >>>> Let's hope someone stands up and fixes the issues in trunk, rather
> then
> >>>> branch.
> >>>> On Jan 10, 2012 2:15 AM, "Ton Roosendaal" <ton at blender.org> wrote:
> >>>>
> >>>>> Hi,
> >>>>>
> >>>>> The Collada conformance suite is not working, and working on it won't
> >>>> help
> >>>>> anything.
> >>>>> I wrote about this here;
> >>>>> http://code.blender.org/index.php/2011/10/collada-momentum/
> >>>>>
> >>>>> Collada just has no reference stakeholder(s) (like how fbx was native
> >>> for
> >>>>> motionbuilder).
> >>>>> Blender would be the worst stakeholder for it even, since we have the
> >>>>> awesome .blend :)
> >>>>>
> >>>>> Much better stakeholders would be Linden Labs (2nd life), or
> >> CryTek...
> >>> or
> >>>>> Daz? Three names of companies who make plenty of dollars with
> >> software
> >>>>> licensing. Why don't they put an employee as developer in our team,
> >> to
> >>>>> ensure Collada exports smoothly for their products?
> >>>>>
> >>>>> I even wouldn't mind a (python) addon "Export to DazCollada,
> >>> CryCollada,
> >>>>> 2ndLifeCollada, etc. It's how collada has been designed to work
> >>> anyway...
> >>>>>
> >>>>> -Ton-
> >>>>>
> >>>>>
> >>>
> ------------------------------------------------------------------------
> >>>>> Ton Roosendaal  Blender Foundation   ton at blender.org
> >>> www.blender.org
> >>>>> Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The
> >> Netherlands
> >>>>>
> >>>>> On 10 Jan, 2012, at 0:25, Sebastian wrote:
> >>>>>
> >>>>>> COLLADA has a great conformance test suite at
> >>>>>> http://www.khronos.org/conformance/implementers/collada/
> >>>>>>
> >>>>>> It's being made available for free and I've already seen Blender
> >>>> results
> >>>>>> uploaded some time ago.
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> On 09.01.2012 23:52, spatial wrote:
> >>>>>>>> For the COLLADA community Blender is definitely one of the most
> >>>>>>>> important stakeholders to stop supporting COLLADA would make
> >> things
> >>>> in
> >>>>>>>> DCC exchange even worse.
> >>>>>>> I agree. Not to mention all those who co use it alongside LW , all
> >>> of
> >>>>>>> DAZ products....etc.
> >>>>>>>
> >>>>>>> I actually tried to avoid a discussion here since a long time,
> >>>>>>> but topic is too important.
> >>>>>>>
> >>>>>>> First, kicking out collada from blender doesn't help anyone. None
> >> of
> >>>> the
> >>>>>>> "common" interexchange formats is that reliable / support all
> >>>> features.
> >>>>>>> To have at least a second format as a backup strategy,  if a
> >> certain
> >>>>>>> features arent't supported / have some unreliable results, is a
> >>> "must
> >>>>>>> have" in every cross application enviroment.
> >>>>>>>
> >>>>>>> And btw, blenders FBX import is, from my experience, still not as
> >>>>>>> reliable as it should be, to actually replace collada. (sorry,
> >> this
> >>> is
> >>>>>>> no actual bashing... its already great what has been archived...
> >>>>>>> especially if you consider that it is allways pain in the ass, to
> >>>>>>> support such a complex exchange format)
> >>>>>>>
> >>>>>>>> We are currently discussing further financing of OpenCOLLADA and
> >>> will
> >>>>>>>> spend more time the next months on bugfixing and conformance
> >> tests.
> >>>>>>>>
> >>>>>>> Sorry to say this, but this is one of the mayor reasons I have to
> >>> post
> >>>>> this:
> >>>>>>>
> >>>>>>> Conformance tests do only help a little to 0
> >>>>>>> The big _advantage_ fbx has, is a working reference application
> >>> called
> >>>>> maya.
> >>>>>>>
> >>>>>>> No conformance test can actually be that foolproof to support all
> >>>>>>> features and variations. So by this simple unoffical agreement,"if
> >>> it
> >>>>>>> doesn't work in maya - it is broken", users and developers have an
> >>>> ideal
> >>>>>>> platform to discuss errors / find workarounds.  This greatly
> >> avoids
> >>>> the
> >>>>>>> "picking in the dark" situation all developers currently face with
> >>>>>>> collada. Even if a dev doesn't have access to it, in a lot of
> >> cases,
> >>>> he
> >>>>>>> can track down problems reported by users who do provide a simple
> >>>>>>> screenshot.
> >>>>>>>
> >>>>>>> Could this collada reference application be Blender ?
> >>>>>>> For me this is a very attractive idea, but also, I'm very aware of
> >>> the
> >>>>> fact,
> >>>>>>> that I'm opening a can of worms I'm actually in no way in the
> >> right
> >>>>>>> position to touch.
> >>>>>>>
> >>>>>>> Anyway just my 2 cents on this.
> >>>>>>> chris
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>> _______________________________________________
> >>>>>>> Bf-committers mailing list
> >>>>>>> Bf-committers at blender.org
> >>>>>>> http://lists.blender.org/mailman/listinfo/bf-committers
> >>>>>> _______________________________________________
> >>>>>> Bf-committers mailing list
> >>>>>> Bf-committers at blender.org
> >>>>>> http://lists.blender.org/mailman/listinfo/bf-committers
> >>>>>
> >>>>> _______________________________________________
> >>>>> Bf-committers mailing list
> >>>>> Bf-committers at blender.org
> >>>>> http://lists.blender.org/mailman/listinfo/bf-committers
> >>>>>
> >>>> _______________________________________________
> >>>> Bf-committers mailing list
> >>>> Bf-committers at blender.org
> >>>> http://lists.blender.org/mailman/listinfo/bf-committers
> >>>>
> >>> _______________________________________________
> >>> Bf-committers mailing list
> >>> Bf-committers at blender.org
> >>> http://lists.blender.org/mailman/listinfo/bf-committers
> >>>
> >> _______________________________________________
> >> Bf-committers mailing list
> >> Bf-committers at blender.org
> >> http://lists.blender.org/mailman/listinfo/bf-committers
> >>
> > _______________________________________________
> > Bf-committers mailing list
> > Bf-committers at blender.org
> > http://lists.blender.org/mailman/listinfo/bf-committers
>
> _______________________________________________
> Bf-committers mailing list
> Bf-committers at blender.org
> http://lists.blender.org/mailman/listinfo/bf-committers
>

More information about the Bf-committers mailing list