[x3d-public] Member-only: X3D to Unity, Unreal, Blender, glTF

[John Carlson]

Note that the JSON validator for Java (JV4J) is entirely independent of any
JSON schema standard or JSON schema draft standard.

Hopefully we can add JV4J to X3DJSAIL.

JV4J is tiny compared to a JSON schema(s) and JSON schema validator code,
since it relies on pre-existing X3DJSAIL validation.

Thanks!

John

On Sat, Apr 16, 2022 at 11:20 AM John Carlson <yottzumm at gmail.com> wrote:

> Don, I have not been able to get any C++ .h files compiling, due to
> missing afxtempl.h (previously posted).  I am dead in the water until such
> that file can be identified and installed on my system.
>
> There are also duplicate methods in C++ and C# headers reported by me and
> others.
>
> I believe progress might be made on C.   I’m on rest from surgery until
> Thursday/Friday.
>
> I assume you refer to JSON loading into X3DJSAIL using X3DJSONLD.java and
> JSON conversion to Python using x3djsonld.py.            I have previously
> posted about both of those.  I believe a patch needs to be made for MFVec2f
> fields in x3djsonld.py, but I don’t know why it’s broken at this point.  I
>  am waiting for inspiration/help.  As for Java, I have issues with the
> X3DJSAIL validator for JSON used in my coderextreme x3dschema repo on
> GitHub.   This validator is set up to validate the archive.  I believe a
> new X3DJSAIL has been produced since I checked that last.   I am hoping we
> could perhaps integrate the Ant script and Validator.java code into your
> build, as part of the JSON examples build?   Let me know.  I can meet after
> the 21st.  I'm fairly sure I am still limited to C/C++/C#/node/nashorn
> folders on sourceforge?
>
> I agree that es6x3d remains a work not in progress.  Further work on this
> will require someone familiar with SAI and X3D.  I’m more of an app
> programmer than a library programmer.  As for starting with a pre-existing
> stylesheet, I would prefer working with something that generates a
> stylesheet instead of hand-coding.   Also see previous posts about i18n,
> accessibility, and l10n of stylesheets, to support multiple languages.
>
> I am working towards getting something renderable.  I have seen that the
> C# SAI looks like it can render to Unity???  But haven’t seen any rendering
> in C/C++.
>
> I believe targeting rendering non-X3D players is desirable, but I’ve only
> seen it for Blender.  Was the Blender code autogenerated, boom presto?  I
> would also be interested in Andreas’ work with Babylon.js.  Is there some
> GPT-3/AlphaCode magic happening?
>
> Perhaps there is a product from the semantics working group I haven’t seen?
>
> John
> On Fri, Apr 15, 2022 at 10:37 PM Brutzman, Donald (Don) (CIV) <
> brutzman at nps.edu> wrote:
>
>> John, we have X3DUOM which is fully complete and correct model of X3D
>> data structures.
>>
>> We are successfully generating Java and Python with ~100% correctness,
>> fixing any stray edge cases when they emerge.
>>
>>
>>
>> We have potential to do exactly the same with JSON and JavaScript, as you
>> know through your impressive efforts..
>>
>>
>>
>> The C, C++ and C# specification drafts and example codebases have been
>> posted for comment.  Who is testing them?
>>
>>
>>
>> You don’t need to change other codebases, just get our code patterns
>> correct for each programming language, then when ready autogenerate the
>> loader/setter classes.  Boom presto done, everywhere that wants it.
>>
>>
>>
>> Have fun with X3D!  8)
>>
>>
>>
>> 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
>>
>>
>>
>> *From:* x3d-public <x3d-public-bounces at web3d.org> *On Behalf Of *John
>> Carlson
>> *Sent:* Friday, April 15, 2022 4:50 PM
>> *To:* X3D Graphics public mailing list <x3d-public at web3d.org>
>> *Subject:* [x3d-public] Member-only: X3D to Unity, Unreal, Blender, glTF
>>
>>
>>
>> I’ve posted on this before.
>>
>>
>>
>> Instead of writing importers/loaders, I have a suggestion that we
>> “compile” X3D user code to a variety of back ends, Unity, Unreal, Blender,
>> glTF, three.js, PlayCanvas, Babylon.js etc.
>>
>>
>>
>> Obviously we need some kind of Abstract Syntax Tree (AST) or Intermediate
>> Representation (IR).  I suggest we use subclasses of X3DJSAIL and/or x3d.py
>> classes.
>>
>>
>>
>> I think Don would suggest using X3DJSONLD or XSLT as a basis.   Note that
>> X3DJSONLD uses DOM or Python dict as IR.  I would prefer a typesafe IR.
>>
>>
>>
>> Thoughts are welcome!   What’s a good, accomplishable approach?
>>
>>
>>
>> Thanks,
>>
>>
>>
>> John
>>
>
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