[x3d-public] splats program

[John Carlson]

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

On Mon, Apr 6, 2026 at 10:38 AM Bergstrom, Aaron via x3d-public <
x3d-public at web3d.org> wrote:

> All,
>
> 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> On Behalf Of Len Bullard
> via x3d-public
> Sent: Monday, April 6, 2026 10:09 AM
> To: joedwil at earthlink.net; Extensible 3D (X3D) Graphics public discussion
> <x3d-public at web3d.org>
> Cc: 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
> >
> > 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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