atom feed95 messages in org.blender.bf-committersRe: [Bf-committers] Collada importer/...
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Ton RoosendaalJan 10, 2012 2:15 am 
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Juha Mäki-KantoJan 15, 2012 11:38 am 
Peter AmstutzJan 17, 2012 1:43 pm 
Stephen SwaneyJan 17, 2012 6:27 pm 
Subject:Re: [Bf-committers] Collada importer/exporter kickout
From:johannes amorosa (joha@googlemail.com)
Date:Jan 10, 2012 3:29:49 am
List:org.blender.bf-committers

Offtopic: How far is Alembic support in Blender? (I apologize I don't wan't to start a flame war) johannes

On 10 January 2012 11:15, Ton Roosendaal <to@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-

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