[x3d-public] gltf tooling

[John Carlson]

I’ll probably be converting my X3D files to glTF.  USD might be possible
after that.  My biggest issue with converting is that my files contain
either script nodes or shaders, and I haven’t seen much source to source
conversions for those.  I’ve not seen too much USD support on the web yet.
The web is where the rubber meets the road.

I’ve investigated tools like FX3D/FVRML and Mathematica, but I’m not really
sure if those tools support reflection and refraction, or even
transparency.  Or web support.

So at this point, I’m hoping that X3D tools can be built to leverage glTF
materials (X_ITE) and I can apply vertex shaders do to morphing, since
scripting languages are too slow.

In other words, in order to do declarative graphics programming, it still
requires a lot of scripting, and the promise of X3D was to eliminate
scripting, or at least, imperative scripting.

Yes, I am bummed.  Even something like declarative surface subdivisions ala
X3DOM would be welcome.  Gives a quadrilateral or a sphere, how do I break
up the surface into a mesh declaratively?  Can we do repeatS or repeatT on
geometry?

Ideally, I could do declarative transitions through the use of keyframed
parameters on mathematical equations.

When are we going to get there?  Can I help?

I only have 4-6 parameters to my equations.  Conceivably, I could create a
stochastic interpolator which provides an infinite list of parameter tuples
or frames.

Why worry about the competition, when we should be forging ahead?  When are
actual problems going to be addressed?  Why trade one set of problems for
another?

John

On Mon, Jul 15, 2024 at 10:06 AM Joe D Williams via x3d-public <
x3d-public at web3d.org> wrote:

> https://www.youtube.com/watch?v=Z-WTelO-IgU
>
>
> Anyone looking at this?
> Thanks,
> Joe
>
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