CuriousArc and QROST have released GSRhino 0.1.0-beta.5, a public beta of an open source viewer that draws gaussian splats natively inside a Rhino 8 display mode.
Rhino already has native splat plugins. RhinoGaussianSplatting arrived in July as a free Windows plugin for importing, editing and meshing splats, and Krill 0.12.0 brought splats into Rhino 8 blocks as a closed beta, also on Windows. The current GSRhino build is a macOS preview.
GSRhino renders anisotropic splats with opacity and view dependent spherical harmonic color up to degree 3 in a display mode named GSRhino (Experimental). Wireframe and the other display modes show each splat object as a reference box. The plugin keeps the full Gaussian data on import and does not replace splats with a point cloud or reduce their count. Rendering runs on background projection and sorting with batched native drawing.
Import covers 3DGS ply files in ASCII and both binary byte orders, 32 byte .splat records, and SPZ versions 1 through 4. SPZ files carrying degree 4 spherical harmonics are rejected outright. GSRhino also imports and exports static scenes built on the ParticleField3DGaussianSplat schema that OpenUSD 26.03 added to its core repository, across .usd, .usda, .usdc and .usdz, with multiple parts and transforms preserved. USD support depends on an optional local Python 3.11 to 3.14 environment running the pinned usd-core 26.11 wheel, which a bundled script installs without modifying Rhino or the system Python.
GSRhino requires Rhino 8.32 or later and adds the GSRhinoPanel, GSRhinoImport, GSRhinoExport, GSRhinoMode, GSRhinoDiagnostics and GSRhinoProbe commands. A 3DM file stores instance references and transforms while the splat data lives in a local cache, so USDZ export is the portable route for sharing a scene. No account or API key is needed.
Host acceptance testing for Intel Mac and Windows execution is still pending, although the managed builds target macOS and Windows. The Yak package is named gsrhino, and a Food4Rhino listing is under review.
GSRhino 0.1.0-beta.5 is available now through Rhino's Yak package manager, with source on GitHub under the Apache 2.0 license.
