[x3d-public] InlineGeometry node and PLY format support in Castle Game Engine

[John Carlson]

Hi, Michalis, Seeing Gaussian Splat PLYs renderered with humanoid animation
would be cool to see.  With your expertise in binary formats and binary
PLY, probably an easy next step!

John

On Sun, Apr 5, 2026 at 8:05 PM Michalis Kamburelis via x3d-public <
x3d-public at web3d.org> wrote:

> With big thanks to Don who provided information and pushed me to implement
> it!:)
>
> 1.  We support now InlineGeometry in Castle Game Engine and Castle Model
> Viewer.
>
>     - I tested on a few examples, and made our own:
> https://github.com/castle-engine/demo-models/tree/master/x3d/inline_geometry
>
>     - You can refer to a geometry from any model format we support,
> including X3D, glTF, STL, PLY...: https://castle-engine.io/model_formats
>
> 2.  We support now loading models in a PLY format.
>
>     - ASCII and binary versions.
>
>     - Faces or without faces (point cloud, i.e. just our PointSet).
>
>     - Testcases include
> https://github.com/castle-engine/demo-models/tree/master/ply and
> https://sketchfab.com/3d-models/kaktus-ply-7b7cc7188f17468595506500e186a9c0
>  .
>
> More information and screenshots about both features in our news post on
> https://castle-engine.io/wp/2026/04/06/support-for-ply-model-format-and-inlinegeometry-node/
>  .
>
> They are available to test right now if you download
> - the "snapshot" version of Castle Model Viewer
> https://castle-engine.io/castle-model-viewer
> - or full engine from https://castle-engine.io/download .
>
> Regards,
> Michalis
>
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