[x3d-public] splats on list or list on splats

[John Carlson]

Joe, We don't have impressive stuff.  Just colored point clouds at this
point.  We can demo it, but we need SphereSets which could be groups of
X_ITE InstancedShape Spheres, but we need to determine how to group
identical Material (Appearance) at least. We have very large PLY files
currently.  Converting this accurately to X3D makes huge files, and
SphereSets or InstancedShapes (with different colors) are indicated.

I'm guessing only I'm the only one interested in grouping Material at this
point, and I don't know how to parse a PLY file.  I am providing my code as
a starting point.  Just realize this system was compromised March 31st, so
open this file in a safe manner (I suggest in the cloud).  I will rescan my
system.

I think Michalis might be best prepared to create a SphereSet in Pascal.

 PlyToX3D.zip
<https://drive.google.com/open?id=1M_b_COFbqnI1Feue98VxvBR_QXD74CkR>
I got distracted from HAnim on this.

Thanks,

John

On Wed, Apr 8, 2026 at 6:19 PM Joe D Williams via x3d-public <
x3d-public at web3d.org> wrote:

> Hi,
> MSF 3D Assets had a meeting and asked me about Web3D and GSplats.
> I sort of said waiting for guidance from glTF and not much activity.
> (I had not really been thinking about it.)
> Then I thought to send the following to the MSF 3D Assets list.
> I would like to see demos to show at MSF meeting.
>
> Hi All, (MSF 3D Assets WG)
> I under reported Web3D interest and activity concerning nDGS, tiles,
> creation, transport, rendering, and interaction. Just wasn't following the
> topic.
>
> Now 'splats' activity on x3d-public(mailto:x3d-public at web3d.org).
>
> "... it might help to have a couple of slides that show web3D interest."
>
> "It makes sense perhaps to do an X3D GaussianSplat Component and nodes
> matching like we did gltf/pbr.
> Then they would work like they do in 3D Tiles Sandcastle | CesiumJS "
>
> https://www.khronos.org/news/press/gltf-gaussian-splatting-press-release
>
> https://github.com/KhronosGroup/glTF/blob/main/extensions/2.0/Khronos/KHR_gaussian_splatting/README.md
>
> "why not just follow the new Khronos standard extension to gltf ?"
>
> "A Splatogrammetry solver component built into an x3d browser
> could simulate splat workflow ..."
>
> "... I think the glTF is not complete and maybe some proprietary stuffs
> ..."
>
> "add splat rendering node, at least gltf variant...
> all-in - add splat and photogrammetry component,
> with splats from MovieTexture or ImageTextures,
> including save to file ..."
>
> "I am using the term “data sources” rather than
> model or scene, because I don’t think those terms
> of scene or model apply to splat rendering."
>
> "... we want to use the gaussian splat technique for
> rendering minerals/rocks that was demonstrated
> at the Web3D conference last year."
>
> "... I had to look up splatting.
> Interesting and with high quality rendering
> Compared to X3D;
> 1. Lose interactivity
> 2. Lose real time data input to model.
> 3. Lose extensibility
> It seems to be a runtime for image sourced 3D models."
>
> "How does this fit with X3D?"
>
> Add an experience session showing a couple of splatters and some gsplat
> tests?
> Thanks and All Best,
> Joe
>
>
>
> _______________________________________________
> x3d-public mailing list
> x3d-public at web3d.org
> http://web3d.org/mailman/listinfo/x3d-public_web3d.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://web3d.org/pipermail/x3d-public_web3d.org/attachments/20260408/b0f7364c/attachment-0001.html>