[x3d-public] splats program

Tue Apr 7 11:00:53 PDT 2026

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> 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 heavy
> b) dabble - add splat rendering node, at least gltf variant
> c) 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
>
> On Mon, Apr 6, 2026 at 12:30 PM John Carlson via x3d-public <
> 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
>>
>> 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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