[x3d-public] splats program

Tue Apr 7 14:17:44 PDT 2026

> why not just follow the new Khronos standard extension to gltf

I might need to check more closely but I think the glTF is not complete and maybe some proprietary stuffs still in the way.
The Town Hall meeting, still in planning for early next month, is hoping to make some progress.
I would know more about the glTF standard plan if I had not went to sleep for the last part of the MSF Digital Assets meeting today:) Video will be available. 
Again, it might help to have a couple of slides that show web3D interest. 
Joe

-----Original Message-----
From: Polys, Nicholas via x3d-public <x3d-public at web3d.org></x3d-public at web3d.org>
Sent: Apr 7, 2026 11:43 AM
To: Extensible 3D (X3D) Graphics public discussion <x3d-public at web3d.org></x3d-public at web3d.org>
Cc: Polys, Nicholas <npolys at vt.edu></npolys at vt.edu>
Subject: Re: [x3d-public] splats program

why not just follow the new Khronos standard extension to gltf ? From: x3d-public <x3d-public-bounces at web3d.org> on behalf of John Carlson via x3d-public <x3d-public at web3d.org></x3d-public at web3d.org></x3d-public-bounces at web3d.org>
Sent: Tuesday, April 7, 2026 2:00:53 PM
To: Extensible 3D (X3D) Graphics public discussion <x3d-public at web3d.org></x3d-public at web3d.org>
Cc: John Carlson <yottzumm at gmail.com></yottzumm at gmail.com>
Subject: Re: [x3d-public] splats program I think wins for X3D would be standardizing GPU instancing [InstancedShape (X_ITE) with MFColor] and SphereSet with SphereProperties for axis-based scaling and MFFloat for radii. Would you like to come up with a node description for these, Doug? Thanks, John
On Tue, Apr 7, 2026 at 11:02 AM GPU Group via x3d-public <x3d-public at web3d.org (mailto:x3d-public at web3d.org)=""> wrote:Post webinar > potential attitudes for x3d browser developers:a) stay clear - splat generation dominated by a few proprietary hardware and software pipelines, compute resource heavyb) dabble - add splat rendering node, at least gltf variantc) all-in - add splat and photogrammetry component, with ability to generate splats from MovieTexture or ImageTextures, including save to file, solver in separate thread and reports when solved like Inline reports when loaded, making browser into an editor-Doug</x3d-public at web3d.org>
On Mon, Apr 6, 2026 at 12:30 PM John Carlson via x3d-public <x3d-public at web3d.org (mailto:x3d-public at web3d.org)=""> wrote:I also feel like castle could properly handle gsplats with a subclass of PointSet which included an MFVec3f for scales on each point. This is currently not something that PointProperties can handle, because of independent x,y,z scales. Perhaps PointProperties could be extended? I don’t have a problem viewing colored PLY point clouds in Castle. The question is, can WebGL handle this at scale, and perhaps we should look at WebGPU? If Castle can use the web with WASM, maybe we can see scaleable point clouds on the web? I don’t have a problem interacting with point clouds in Castle, I just don’t know the impact of adding scales to the problem, and it’s probably severe and not suitable for X3D. But Sunrize already supports instancing. Why not instanced spheres for points? When I wrote my email last night, I had not tried looking at PLY point clouds in the new Castle, it looks like they are well supported, even in X3D. For Castle, I just need PLY color properties that Castle is using. John</x3d-public at web3d.org>
On Mon, Apr 6, 2026 at 10:38 AM Bergstrom, Aaron via x3d-public <x3d-public at web3d.org (mailto:x3d-public at web3d.org)=""> wrote:All,</x3d-public at web3d.org>

I would like to see Gaussian Spats in an X3D browser, as I'd like to use them in our interactive environments.

Holger came up with a proposed Guassian Splat node for X3D/X_ITE, but it hasn't been implemented.

My guess it would require some funding so that he could allocate resources, though I am not sure how the traditional polygon rendering pipeline fits with that needed to render splats.

As far as how it fits with X3D, it's just content that I would like to include as part of an X3D scene.

I would like to create web-based content for the University of North Dakota that includes gaussian splat models remote learning as part of our distance learning Geology courses.

Effectively, we want to use the gaussian splat technique for rendering minerals/rocks that was demonstrated at the Web3D conference last year. This is a more realistic rendering of how light reflects and passes through 3D content generated from real-world minerals.

I have a friend who works for a construction company doing construction site visualization, and they are eyeing gaussian splats for that instead of photogrammetry because they feel it looks better for the amount of effort needed to generate the content.

There just needs to be an easy way to view it on the web. Sure you can use SuperSplats, but it would be nice if I could include gaussian splat content in my X3D environments.

Aaron

-----Original Message-----
From: x3d-public <x3d-public-bounces at web3d.org (mailto:x3d-public-bounces at web3d.org)=""> On Behalf Of Len Bullard via x3d-public</x3d-public-bounces at web3d.org>
Sent: Monday, April 6, 2026 10:09 AM
To: joedwil at earthlink.net (mailto:joedwil at earthlink.net); Extensible 3D (X3D) Graphics public discussion <x3d-public at web3d.org (mailto:x3d-public at web3d.org)=""></x3d-public at web3d.org>
Cc: cbullard at hiwaay.net (mailto:cbullard at hiwaay.net)
Subject: Re: [x3d-public] splats program

On 2026-04-06 3:13 am, Joe D Williams via x3d-public wrote:
>  (https://www.khronos.org/events/gaussian-splats-use-cases-next-steps-for-gltf-standardization (https://www.khronos.org/events/gaussian-splats-use-cases-next-steps-for-gltf-standardization))
>
> Register for April

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?

Len

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