TACTYC

TACTYC Studio is a design driven 3D animation and digital studio, registered as TACTYC Studio GmbH & Co. KG in Arnstorf, Bavaria, whose client work includes campaigns for Adidas, Michael Kors and Hugo Boss. Alongside that work it sells Houdini and Cinema 4D tools on Gumroad, and three of them handle Gaussian splats.

The first was GSplat Redshift Shader for Houdini v1.0, a Houdini digital asset that builds on GSOPs, the Houdini operators from CG Nomads, and will not run without it installed. TACTYC offers it pay what you want from zero, it installs into the Houdini otls folder, and it appears among the SOPs under a TACTYC heading.

Onesplat arrived in August 2026 as a Houdini SOP that generates a 3D Gaussian splat from a single image on a local GPU, removing the background automatically and baking the result through Houdini's native Bake GSplat SOP into GS_Alpha, orient, scale and Cd attributes. On an RTX 4090 at 20 steps it produces 65,536 gaussians in 11.1 seconds and 262,144 in 11.5 seconds at a peak of 4.6 GB of VRAM. Bake GSplat arrived in Houdini 21.0, so Houdini 20.5 and older will not run the plugin, and SideFX made its native Gaussian Splat pipeline generally available in Houdini 22. Onesplat needs an NVIDIA GPU with 6 GB of VRAM or more, 64 bit Windows 10 or 11, Python 3.10 to 3.12 and about 10 GB of free disk. It ships no model weights, fetching an open source model and PyTorch on first setup, and TACTYC does not name that model. Splats render in Karma XPU, while Storm and Karma CPU show them as a colored point cloud.

Gaussian Splat v2.0 followed in October 2026 for Cinema 4D with Redshift, replacing the earlier GSplat Importer v1. Cinema 4D and Redshift have no splat primitive, so the plugin builds one small textured card per splat, oriented to the scan's surface with smoothed shading normals, and Redshift lights and shadows those cards like any other object. Spherical harmonics are evaluated in a Redshift OSL shader at Off, SH 1, SH 2 or SH 3, and each splat responds to MoGraph effectors, deformers and fields. It reads standard and relightable PLY, PlayCanvas compressed PLY, splat, SPZ versions 1 to 4, bundled SOG and ksplat, but not unbundled SOG, streamed or LOD scenes, LCC, SH degree 4 or 2D Gaussian splatting. Its card cache and texture atlases take roughly 100 MB per million splats before spherical harmonics.

Gaussian Splat v2.0 requires 64 bit Windows 10 or 11, Cinema 4D 2026 and Redshift, with macOS in development, and TACTYC sells it as is, without support. Both paid tools cost €19 on Gumroad, owners of GSplat Importer v1 receive v2.0 as a free update, and Onesplat updates within 1.x are free with no refunds offered. In the same host, Gausser animates splats in Cinema 4D through MoGraph and Octane for Cinema 4D 2.0.0 renders splats in the viewport.