[Bf-committers] Annoucement: Better Collada Exporter for Blender!

Ton Roosendaal ton at blender.org
Sun Oct 12 19:52:46 CEST 2014 

Hi,

To quote you:

"This plugin is very battle-tested, and files written by it can be read by most DCCs and engines. It's the most  efficient, complete, mature, and featured Collada exporter ever written for Blender."

I would like to know how you tested this statement. I would be really happy to see this to be true. 

-Ton-

--------------------------------------------------------
Ton Roosendaal  -  ton at blender.org   -   www.blender.org
Chairman Blender Foundation - Producer Blender Institute
Entrepotdok 57A  -  1018AD Amsterdam  -  The Netherlands



On 12 Oct, 2014, at 19:27, Juan Linietsky wrote:

> Ton,
> 
>     I really don't understand this reasoning at all.
> 
>     Collada is completely useless as an exchange format between DCCs.
> Neither Blender nor Max, Maya or pretty much any other of those apps has a
> properly working Collada importer. All are severely broken because It's not
> a common use case. If the Blender community is worried about better
> exchange of data with Max or Maya, then the proper way to go would be to
> write plugins for those DCCs that read and write Blender files and tries to
> guess the best way to map data, not use crappy and ambiguous intermediate
> formats like Collada or FBX.
> 
>     This Collada exporter is meant to export for game engines. It was
> tested with many (including my own) and it works. If it doesn't work, (and
> as long as the exported format is correct) then it's the responsibility of
> that game engine to read the format properly. It's wrong to expect an
> exporter to accommodate to bugs or implementation errors in third party
> software. A bug must be reported to them if that is the case.
> 
>     Also, your argument about user interest is wrong and It's easy for me
> to prove it. *NO ONE* that uses blender to export to game engines even
> knows the plugin I contributed exists. I know this because I get reports
> from Godot users all the time that exported Collada from Blender is broken
> or lacks features, then I point them to my exporter and problem solved. Now
> the community became experts in pointing new users to not use Blender
> exporter and instead use mine, it's like a ritual.  This does not happen
> with users that come from other DCCs with proper collada exporters such as
> Max, Softimage, Maya, etc.
> 
>     So, keep blaming others on the poor Collada support in Blender. You
> are all fed up with it because you placed your trust int the wrong hands
> (specially the choice of using OpenCollada, which I criticized back then
> and Insisted it was extreme an unnecessary bloat, given my exporter does
> the same and more in 0.01% the amount of code). It's not my fault you all
> keep taking the wrong decisions. I bring you a perfectly working and
> feature complete Collada exporter, which I keep up to date and am
> compromised to fix any bug that might arise. All I ask is help to integrate
> it properly to Blender and I get shooed. Way to go!
> 
>     Now the trend is to support OpenGEX, which looks really promising and
> I will love to implement it, but that format has the big drawback that if
> you want to test the correctness of an implementation, you have to pay the
> author of the format for a license of the C4 Engine.
> 
>    This is not serious at all.
> 
> Juan
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> On Sun, Oct 12, 2014 at 11:02 AM, Ton Roosendaal <ton at blender.org> wrote:
> 
>> Hi Juan,
>> 
>> The lack of interest is quite typical indeed. Collada might be not so
>> popular, but no user reported sofar any success with your code either, so
>> it's not so strange it did not get a lot of attention from coders either.
>> 
>> For me it then comes down to your presentation. Why not providing
>> reference files (like game characters in Blender) that went 1:1 to Maya or
>> Max? Write docs, add examples?
>> 
>> If you claim you have a great Collada exporter, then where are your test
>> files, which cases did you test with Maya or Max? Who else uses it, and
>> where can see examples of this working?
>> 
>> Would help a lot,
>> 
>> -Ton-
>> 
>> --------------------------------------------------------
>> Ton Roosendaal  -  ton at blender.org   -   www.blender.org
>> Chairman Blender Foundation - Producer Blender Institute
>> Entrepotdok 57A  -  1018AD Amsterdam  -  The Netherlands
>> 
>> 
>> 
>> On 12 Oct, 2014, at 15:33, Juan Linietsky wrote:
>> 
>>> It's been in there since some months, and there seems to be no interest
>> at
>>> all in integrating it into Blender. (That version is also pretty outdated
>>> by now.), so i'm maintaining it / hosting it on my own.
>>> 
>>> https://developer.blender.org/T41071
>>> 
>>> On Sun, Oct 12, 2014 at 4:49 AM, Daniel Salazar - patazstudio.com <
>>> zanqdo at gmail.com> wrote:
>>> 
>>>> Sounds fantastic, why don't you put it in
>> https://developer.blender.org/
>>>> 
>>>> Thank you for sharing!
>>>> Daniel Salazar
>>>> patazstudio.com
>>>> 
>>>> 
>>>> On Fri, Oct 10, 2014 at 6:12 AM, Juan Linietsky <reduzio at gmail.com>
>> wrote:
>>>>> Godot site is still under construction, but I've decided to publish my
>>>>> Collada exporter by myself, given the lack of will to include it in
>>>> Blender.
>>>>> 
>>>>> This plugin is very battle-tested, and files written by it can be read
>> by
>>>>> most DCCs and engines.
>>>>> It's the most efficient, complete, mature, and featured Collada
>> exporter
>>>>> ever written for Blender.
>>>>> It supports almost every Collada feature and several more than the
>>>> built-in
>>>>> one. Best of all, it's only 1400 lines of python code. No dependencies.
>>>>> 
>>>>> Feature list:
>>>>> 
>>>>> 
>>>>>  - Export all supported nodes in the format:
>>>>>     - Meshes
>>>>>     - Lights (Omni, Directional, Spot and Ambient)
>>>>>     - Cameras
>>>>>     - Spline Curves (paths)
>>>>>     - Armatures (mesh objects must be children of them).
>>>>>     - Empty Objects
>>>>>  - Bones with proper rest information.
>>>>>  - Shape Keys
>>>>>  - Combined Shape Keys + Armature deform.
>>>>>  - Materials and Textures
>>>>>  - Automatic handling of texture paths (conversion to relative).
>>>>>  - Optional copying of textures on export.
>>>>>  - Standard Extensions for double-sided geometry.
>>>>>  - Standard Extensions for  normal maps.
>>>>>  - Geometry Optimization (creation of indices and triangulation).
>>>>>  - Export Masks (By Selection, Layer or Object Type).
>>>>>  - Full animation support for objects, bones and shape keys.
>>>>>  - Support for exporting all clips in the scene, including shape keys
>>>> via
>>>>>  set-driven keys.
>>>>>  - Baking of curves and constraints during animation export.
>>>>> 
>>>>> Screenshots:
>>>>> 
>>>>> [image: bc1]
>>>>> 
>>>>> [image: bc2]
>>>>> 
>>>>> Home:
>>>>> 
>>>>> http://www.godotengine.org/wp/better-collada-exporter/
>>>>> 
>>>>> Cheers!
>>>>> 
>>>>> Juan
>>>>> _______________________________________________
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