Gaussian Splat Cleanup in Houdini 22 β€” From VEX Wrangles to a Free HDA @Nodeconnector
Gaussian Splat Cleanup in Houdini 22 β€” From VEX Wrangles to a Free HDA  @Nodeconnector
Uploaded August 2026 | Updated September 2026, 3 weeks ago
In this follow-up to my previous Gaussian Splatting training video, I walk through a complete cleanup workflow for raw 3D Gaussian Splats in Houdini β€” starting with simple, hand-built VEX Wrangles and ending with a free, ready-to-use HDA that brings it all together.

You'll learn how to work directly with raw PLY splat attributes (pre-bake), including:

πŸ”Ή Filtering floaters by scale/area
πŸ”Ή Cleaning up low-opacity (alpha) points
πŸ”Ή Isolating unwanted colors via hue filtering
πŸ”Ή Removing floaters based on neighbor distance (pcfind)

We start with standalone VEX Wrangles so you understand exactly what's happening under the hood, then move on to the full Gaussian Splat Cleanup HDA, which combines duplicate removal, alpha filtering, scale/area filtering, statistical floater detection, hue filtering, hole filling, and orientation cleanup into one modular, artist-friendly tool.

⏱ Timestamps

00:00 Intro
01:49 Gsplat Attributes
02:59 Cleanup with Group Node
04:39 VEX Wrangle: Alpha Filter
06:49 VEX Wrangle: Scale Filter
09:46 VEX Wrangle: Neighbor Distance Floater Filter
14:17 Additional Manual Cleanup
14:54 Introducing the Gaussian Splat Cleanup HDA
20:13 Hole Filling
23:10 Outro

πŸ“₯ Download the HDA (pay-what-you-want):
nodeconnector.gumroad.com/l/mrdwo

πŸ’› Support this channel
If tutorials like this help your workflow, consider supporting future content on Patreon. It directly funds the time spent building tools like this HDA and creating in-depth Houdini tutorials and courses.
πŸ‘‰ patreon.com/cw/nodeconnector

πŸ”— Related links
Previous video (Gaussian Splat training in Houdini): youtu.be/vP609ccWOKo
My website: nodeconnector.com

πŸ›  Tools used
Houdini 22 (native GSplat tools)

If this tool saves you time, consider supporting it via the pay-what-you-want download β€” it helps me keep making tools and tutorials like this one.

#GaussianSplatting #Houdini #3DGS #VEX #ProceduralWorkflow
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Gaussian Splat Cleanup in Houdini 22 β€” From VEX Wrangles to a Free HDA

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