[x3d-public] Python authoring/mesh editing; Web3D TypeScript engine

[John Carlson]

I’m going skip past this to focus on Multi-touch sensor visualization.
Java is ok for ASL, i need to focus on visualizing protactile.  If anyone
has a good multi-touch or LeapMotion visualizer tool they use, let me know.

Ultimately I’ll be turning multi-touch or LeapMotion movements into some
kind of programming language for the deafblind.

John

On Mon, Feb 12, 2024 at 4:28 AM vmarchetti--- via x3d-public <
x3d-public at web3d.org> wrote:

> Referring to the question toward the end, to knowledge the x3d.py module
> does not offer a navigation analogous to 'parent'
>
> Because of the DEF/USE mechanism which allows a node to be situated at
> multiple locations in a scenegraph, there is no simple definition of a
> parent node.
>
> In a DOM tree or XML ELement tree we can ask what is the parent of the
> encoding element that contains the DEF attribute of a X3D node, but that is
> not a concept that transfers from encoding to encoding
>
> Vince Marchhetti
>
>
> On Feb 12, 2024, at 4:19 AM, John Carlson via x3d-public <
> x3d-public at web3d.org> wrote:
>
> Sorry for more posts.
>
> Other choices are pygfx+trimesh and Panda3d.  pygfx is like Three.JS, but
> in Python and is supported by webgpu packages.  Panda3d uses older shading
> languages, it looks like.
>
> Searching the web…
>
> A TypeScript WebGPU Web3D engine.  Beta! Runs in Chrome/Edge 113+ right
> now.  Not tested by me.
>
> https://github.com/Orillusion/orillusion
>
> Kotlin and webgpu:
>
> https://github.com/kgpu/kgpu
>
>
> I think I will probably work on creating a renderer using pygfx that
> renders x3d.py subclassed scenes.  I will focus on authoring
> PyIndexedFaceSets, PyGroups and PyTransforms first, which hopefully will
> satisfy my use  case.  Ultimately, I will view the functions as compatible
> with x3d.py (with some work).  I don’t know about events yet.
>
> Anyway.  I’m trying to keep up with WebGPU, etc.
>
> I’m favoring non-web renderers right now. I realize that JavaScript
> support will be minimal.  Ultimately, I’ll move towards Script nodes.
>
> Hopefully all the webgpu stuff will be integrated into Modular Mojo at
> some point.
>
> A big question at this point is, does x3d.py support parent nodes in the
> scenegraph?
>
> Thanks!
>
> John
>
> On Mon, Feb 12, 2024 at 1:03 AM John Carlson <yottzumm at gmail.com> wrote:
>
>> I’m thinking of porting my multiuser Java/JOGAMP mesh/line
>> editing/authoring system to something compatible with current Python
>> (3.12?) and Vulkan or WebGPU compatible.  X3D import/export would be a
>> bonus!
>>
>> Right now pyOCCT, pythonocc and OCP are candidates, but I have no clue
>> how they handle my use case.
>>
>> I wil probably choose random colors for the vertices, so color editing is
>> not currently required.  I want to create points, segments, triangles,
>> quadrilaterals and more general polygons.
>>
>> Thanks any for feedback!
>>
>> John
>>
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