[x3d-public] Over next several weeks, I will be ramping up

[John Carlson]

Vince, browser high-powered web solution (FBX as JSON, I Recall). FBX
created on Blender (use a sphere geometry), then converted to proprietary
JSON by PlayCanvas.

https://playcanv.as/p/wQgQBgkE/

Vertex offsets available in X3DJSONLD shader, thanks, Yvonne, Mick and
Andreas.

I’m guessing, 500000 triangles.

Discuss?   How can we speed up vertex transformation in X3DOM and X_ITE?
How do we do transparency with PBR and X3D?

This is not in-browser tessellation.  I want to interactively pick from
parameterized shapes and 3D print to STL.

Yeah, just one object.  But this is STL, which is one object, AFAIK.

John

On Tue, Dec 20, 2022 at 6:46 AM vmarchetti at kshell.com <vmarchetti at kshell.com>
wrote:

> I do not think any of those libraries implement tesselation, if by
> tesselation you mean a function that you can pass a high-level description
> of a geometry , a description being a set of parameters for a  primitive
> shape, or a larger set for a parametrically defined geometry such as NURBS,
> and that function returns some kind of mesh. It looks like you need some
> high powered code such as OpenCascade, C++ with Python binding available. I
> periodically try to explore whether WebAssembly is a viable way to make
> this code base work in the browser, with no positive results so far.
>
> In short, I would judge that in-browser tesselation is not yet a useful
> option to pursue.
>
> Vince Marchetti
>
>
> On Dec 20, 2022, at 6:06 AM, John Carlson <yottzumm at gmail.com> wrote:
>
> <image.png>
>
> The Stereo Lithography (STL) export converter from X3D JSON to STL looks
> like low hanging fruit. I just need to find some good tesselation code in
> ECMAScript. I already have a basic framework. Can anyone recommend A-Frame,
> Three.js, Babylon.js, Unity, X3DOM or X_ITE code for doing tesselation, or
> is it built into WebGL?  Meanwhile, I will be working on meshes and
> creating a project, etc.
>
> On Tue, Dec 20, 2022 at 4:45 AM John Carlson <yottzumm at gmail.com> wrote:
>
>> Over the next several weeks, I will be ramping up for potential return to
>> work, testing out CTS coping skills (laying on a different side, taking
>> breaks), computer hygiene, sleeping hygiene etc.
>>
>> My wife has given me the thumbs up to return to work remotely.
>>
>> So if there's any X3D tasks, I should be able to pick some of them up, I
>> will look at the wishlist.
>>
>> BTW, has anyone attached Gmail to GPT-3?
>>
>> Everyone have a merry xmas and happy new year.
>>
>> Thanks!
>>
>> John
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://web3d.org/pipermail/x3d-public_web3d.org/attachments/20221220/75067e67/attachment.html>