[X3D-Ecosystem] C/C++/C# standard open source? Stylesheets for Python?

[John Carlson]

I guess I didn't send this earlier.

I did see the standards progress page.  For C/C++/C#, are any libraries
open source?  I’m thinking COIN 3D, OpenInventor,  H3D.   Maybe others.  I
see there’s an ISO documentation for each language, but apparently the
standard isn’t open source????  I’m looking for opportunities for X3DJSONLD
serialization. OpenInventor (COIN 3D) looks super complex.

For X3DPSAIL, can you point me at an example of loading XML or DOM into a
scenegraph? Maybe I missed something????  I’m looking for something like
CreateX3DFromString()???   I realized I can create Python from XML, just
like my tools can go from JSON to DOM to Python; but my toolchain isn’t
Python.   Running stylesheets in Python would be a great example.

Looking here:

https://www.web3d.org/x3d/stylesheets/python/examples/PythonX3dSmokeTests.py


On Sun, Jan 25, 2026 at 12:19 AM Don Brutzman <don.brutzman at gmail.com>
wrote:

> Standards planning status appears on the following page.
>
>    - X3D Standards Progress | Web3D Consortium
>    <https://www.web3d.org/x3d/progress>
>    - https://www.web3d.org/x3d/progress
>
> Scroll past overview prose to find links to each version completed, in
> progress and planned.
>
> all the best, Don
> --
> X3D Graphics, Maritime Robotics, Distributed Simulation
> Relative Motion Consulting  https://RelativeMotion.info
>
>
> On Fri, Jan 23, 2026 at 7:44 PM John Carlson via X3D-Ecosystem <
> x3d-ecosystem at web3d.org> wrote:
>
>> A quick search reveals this page:
>>
>> https://wiki.web3d.org/wiki/index.php/X3D_Python_Language_Binding
>>
>>
>> This link on the page is dead?
>>
>> https://github.com/Web3DConsortium/X3D/tree/master/ISO-IEC%2019777
>>
>>
>> Btw: both 19776-4 and 19776-5 are titled JSON encoding?????
>> ==================================
>>
>> I could start writing a Python binding standard?  Except we have three
>> versions, one based on GraalPy/X3DJSAIL and one based on “normal”
>> python-X3DPSAIL, and if course H3D, which AFAIK, has C++ underneath?  I
>> believe CGE may also have plans for Python.
>>
>> GraalPy examples are here:
>>
>>
>> https://github.com/coderextreme/X3DJSONLD/tree/master/src/main/graalpy/net/coderextreme
>>
>> Python examples are on the X3D archives, some duplicated here:
>>
>>
>> https://github.com/coderextreme/X3DJSONLD/tree/master/src/main/python/net/x3djsonld/data
>>
>> It seems like the pure python implementation (pythonic) has more sway and
>> implementations, so I am willing to capitulate, even though, in my
>> experience, X3DJSAIL generates better JSON!  It was never really my idea to
>> go with a pure python version though, but I don’t know how to install
>> GraalPy in Blender!  I will pay anyone $100 if they can make blender run
>> GraalPy for import/export addons on Windows!  I’m guessing X3DPSAIL can run
>> stylesheets as well?  Perhaps it’s time to convert stylesheets to pure
>> Java, with a stylesheet of course!
>>
>> As far as support, GraalPy is supported by Oracle, and Python is
>> supported by Microsoft (Does Guido still work there?).
>>
>> It would be very nice to have a renderer for X3DJSAIL and X3DPSAIL (see
>> previous post)!
>>
>> Has anyone used Xj3D from GraalPy?
>>
>> ==================================
>>
>>
>> On Fri, Jan 23, 2026 at 8:52 PM John Carlson <yottzumm at gmail.com> wrote:
>>
>>> Apologies, I just noticed I meant X3D python binding.
>>>
>>> On Fri, Jan 23, 2026 at 8:50 PM John Carlson <yottzumm at gmail.com> wrote:
>>>
>>>> What’s the status of the Python encoding standard?   Would my
>>>> participation help?
>>>>
>>>> Instead of spending time on Blender currently, my thought is to go back
>>>> to developing an “X3D” JSON to CGE scenegraph converter, as that can be
>>>> developed beyond DOM loading.   Does anyone know a good Pascal LLM?   I do
>>>> find begin/end rather tedious.
>>>>
>>>> If there’s a lot of demand for a Blender HAnim export currently, I will
>>>> reconsider.   Or X3D to glTF conversion.
>>>>
>>>> John
>>>>
>>> --
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>
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