[x3d-public] Blender > Exporting rig transforms to HAnim?

Tue Jun 27 18:53:41 PDT 2023

Desktop Github: "It looks like you don't have write access to
Web3DConsortium/Blender/X3DSupport. If you should, please check with a
repository administrator."

Should I have access?
Who is the repository administrator?
-Doug

On Tue, Jun 27, 2023 at 7:17 PM John Carlson <yottzumm at gmail.com> wrote:

> I believe there is a repo for blender export/import.  Maybe Vince??? set
> it up and can add you?
>
> I can find a link, but it may be a private repo, not sure at this point.
>
> https://github.com/Web3DConsortium/BlenderX3DSupport
>
> Enjoy, if you can!
>
> John
>
> On Tue, Jun 27, 2023 at 4:42 PM GPU Group <gpugroup at gmail.com> wrote:
>
>> PHASE I complete:
>> I have a Cube and light exporting via the 2-step with x3d.py
>> - by hacking the current x3d exporter aka OFFICIAL exporter
>> x so it doesn't do anything fancy / no gltf animations or hanim yet
>> x no import
>> * but has gltf export/import menu, ready for phase ii
>> - I have the syntax worked out for going from blender to x3d aka b2x
>> - temporary name: web3d x3dv exporter
>> Q. should we have it in a community git / github repo, like gltf
>> exporter? If so how to set it up so multiple parties can git push?
>> -Doug
>>
>>
>> On Thu, Jun 22, 2023 at 5:13 PM GPU Group <gpugroup at gmail.com> wrote:
>>
>>> John,
>>> x3d.py looks interesting -- the node classes have XML, JSON, HTML, VRML
>>> export functions (missing equivalent import functions?)
>>> - I'll study it
>>> -Doug
>>>
>>> On Thu, Jun 22, 2023 at 4:48 PM John Carlson <yottzumm at gmail.com> wrote:
>>>
>>>> Check out x3d.py X3DPSAIL for python graph.
>>>> Check out x3djsonld.py (X3DJSONLD) for JSON -> x3d.py structures ->
>>>> XML, HTML5,VRML, etc.
>>>>
>>>>  x3djsonld.py needs more work.
>>>>
>>>> John
>>>>
>>>> On Thu, Jun 22, 2023 at 4:51 PM GPU Group <gpugroup at gmail.com> wrote:
>>>>
>>>>> A quick peek at gltf export/import: they do a 2-step conversion
>>>>> blender scenegraph <=> gltf scenegraph <=> files (.gltf, .glb etc)
>>>>> I've seen 2-step before, with collada exporter
>>>>> I don't quite understand the need for the middle format - seems a bit
>>>>> bureaucratic - but working well for them, perhaps easier to maintain 2-way
>>>>> conversions per-node-class. And can export /import to different file
>>>>> formats .x3dv and .x3d from same middle format. They also mention something
>>>>> generated automatically from some specification.
>>>>> Options:
>>>>> 1. do what they do, except with a web3d python scenegraph in the middle
>>>>> a) if someone has one already, use that
>>>>> b) generate one from specifications
>>>>> c) manually create one in python
>>>>> 2. copy their bender <=> gltf part, and change the gltf <=> files part
>>>>> to x3dv,x3d
>>>>> x but would be missing things that gltf doesn't have but web3d does?
>>>>> 3. stick with 1-step, hack / upgrade current x3d exporter using gltf
>>>>> blender <=> gltf as guide to getting all the blender goodies
>>>>>
>>>>> 1.a) Q. does anyone have python web3d node classes suitable for a
>>>>> scenegraph, or b) can generate from specs?
>>>>> Thanks,
>>>>> -Doug
>>>>>
>>>>> On Thu, Jun 22, 2023 at 2:38 PM Brutzman, Donald (Don) (CIV) <
>>>>> brutzman at nps.edu> wrote:
>>>>>
>>>>>> I too share that Blender->X3D conversion dream, Michalis!  8)
>>>>>>
>>>>>>
>>>>>>
>>>>>> Given that X3D data types are clearly defined with thorough
>>>>>> animation/interaction support, and given that you have indeed mapped glTF
>>>>>> 2.0 rendering into X3D 4.0 capabilities, it is reasonable for anyone
>>>>>> pursuing this effort to expect that complete success of rendering and
>>>>>> animation is indeed possible.  Good to know when pursuing worthy goals.
>>>>>>
>>>>>>
>>>>>>
>>>>>> all the best, Don
>>>>>>
>>>>>> --
>>>>>>
>>>>>> Don Brutzman  Naval Postgraduate School, Code USW/Br
>>>>>> brutzman at nps.edu
>>>>>>
>>>>>> Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA
>>>>>> +1.831.656.2149
>>>>>>
>>>>>> X3D graphics, virtual worlds, navy robotics
>>>>>> https://faculty.nps.edu/brutzman
>>>>>>
>>>>>>
>>>>>>
>>>>>> -----Original Message-----
>>>>>> From: x3d-public <x3d-public-bounces at web3d.org> On Behalf Of
>>>>>> Michalis Kamburelis
>>>>>> Sent: Thursday, June 22, 2023 9:40 AM
>>>>>> To: GPU Group <gpugroup at gmail.com>
>>>>>> Cc: X3D Graphics public mailing list <x3d-public at web3d.org>
>>>>>> Subject: Re: [x3d-public] Blender > Exporting rig transforms to HAnim?
>>>>>>
>>>>>>
>>>>>>
>>>>>> Blender->glTF exporter from Khronos (
>>>>>>
>>>>>> https://github.com/KhronosGroup/glTF-Blender-IO/ , regularly synched
>>>>>> to the version bundled with Blender) has great support for animations.
>>>>>>
>>>>>> Simple animations (changing transformations), shape keys (this means
>>>>>> "CoordinateInterpolator" in X3D), skinning (H-Anim in X3D). And it supports
>>>>>> some more things too :) Like working textures, PBR, custom properties
>>>>>> ("metadata" in X3D).
>>>>>>
>>>>>>
>>>>>>
>>>>>> I indeed dream that someone will have time to upgrade the
>>>>>> Blender->X3D exporter to add there these capabilities, and yes, looking at
>>>>>>
>>>>>> Blender->glTF exporter is a reasonable approach for this.
>>>>>>
>>>>>>
>>>>>>
>>>>>> Regards,
>>>>>>
>>>>>> Michalis
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> czw., 22 cze 2023 o 18:31 GPU Group <gpugroup at gmail.com> napisał(a):
>>>>>>
>>>>>> >
>>>>>>
>>>>>> > Thanks Michalis for info.
>>>>>>
>>>>>> > Q. Does another Blender exporter for another format (not x3d)
>>>>>> export the rig transforms / animations?
>>>>>>
>>>>>> > Hypothesis: if another exporter does, then it would be possible to
>>>>>> copy / adapt code from that exporter to x3d exporter.
>>>>>>
>>>>>> > -Doug
>>>>>>
>>>>>> >
>>>>>>
>>>>>> > On Thu, Jun 22, 2023 at 10:22 AM Michalis Kamburelis <
>>>>>> michalis.kambi at gmail.com> wrote:
>>>>>>
>>>>>> >>
>>>>>>
>>>>>> >> The Blender->X3D exporter unfortunately doesn't support animations
>>>>>>
>>>>>> >> (of any kind - even simple transformations, not to mention
>>>>>> skinning
>>>>>>
>>>>>> >> animation with H-Anim).
>>>>>>
>>>>>> >>
>>>>>>
>>>>>> >> Regards,
>>>>>>
>>>>>> >> Michalis
>>>>>>
>>>>>> >>
>>>>>>
>>>>>> >>
>>>>>>
>>>>>> >>
>>>>>>
>>>>>> >> czw., 22 cze 2023 o 18:16 GPU Group <gpugroup at gmail.com>
>>>>>> napisał(a):
>>>>>>
>>>>>> >> >
>>>>>>
>>>>>> >> > If I make a skin and add a rig in Blender, on export, how do I
>>>>>> get any rig transforms to export to HAnim along with the skin?
>>>>>>
>>>>>> >> > When I use the default x3d export, all I see is the skin in an
>>>>>> IndexedFaceSet.
>>>>>>
>>>>>> _______________________________________________
>>>>>>
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>>>>>>
>>>>>> x3d-public at web3d.org
>>>>>>
>>>>>> http://web3d.org/mailman/listinfo/x3d-public_web3d.org
>>>>>>
>>>>> _______________________________________________
>>>>> x3d-public mailing list
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>>>>>
>>>>
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