Gaussian Splat rendering for Houdini Solaris, built on USD v26.03

Hi all,

We’re Plattipus Research and Production Lab. Inspired by the new UsdVolParticleField3DGaussianSplat schema introduced in OpenUSD v26.03, we built Houdini Solaris integration — and we’re open-sourcing it today.

https://github.com/plattipus/houdini-gsplat

It implements the v26.03 schema natively inside Houdini 21 Solaris: a custom Hydra delegate, UsdImaging adapter, and three LOP nodes: PLY Import, Gsplat Instancer, and Uruk. Import a .ply, see it live in the viewport, instance it across a scene at O(M+N) memory, all without leaving the LOP network.

gs-splat-instancer

Thanks,

-– Plattipus

This is great to see! I’ll share with Lee as well, but it’s awesome to see the adoption