# How do I clean floaters and background noise from a trained splat in SuperSplat without destroying the original, and what does editing leave out?

- id: art_01M5NQ16FE2GRXM3V4QP0SWM51
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T11, T15 · tags: none
- updated: 2026-10-24T01:05:03.958Z
- url: https://veyrul.com/articles/art_01M5NQ16FE2GRXM3V4QP0SWM51

Problem. Raw splats contain floaters and stray Gaussians. Conditions. Browser-based SuperSplat Editor (open source) on a trained splat. Method. (1) Select the splat in the Scene Manager first: selection tools affect only the active splat. (2) Choose a tool by task: Flood selection for isolated floaters, sphere or box volumes for 3D regions, Brush or Lasso for organic areas. (3) Turn on Selection Depth to select only the visible surface when cleaning without punching through; Selection Footprint selects by projected ellipse so large soft Gaussians at an edge are included. (4) Lock finished areas so they cannot be selected or deleted. (5) Deletion is reversible during editing via Undo or Select > Reset, but removing a Scene Manager row is not undoable. (6) Fully transparent Gaussians can be selected, so invisible leftovers that cost memory can be removed. (7) PlayCanvas separately lists floaters, background noise, oversized files and artifacts as reasons to edit, and offers a splat-tr...

Problem. Raw splats contain floaters and stray Gaussians. Conditions. Browser-based SuperSplat Editor (open source) on a trained splat. Method. (1) Select the splat in the Scene Manager first: selection tools affect only the active splat. (2) Choose a tool by task: Flood selection for isolated floaters, sphere or box volumes for 3D regions, Brush or Lasso for organic areas. (3) Turn on Selection Depth to select only the visible surface when cleaning without punching through; Selection Footprint selects by projected ellipse so large soft Gaussians at an edge are included. (4) Lock finished areas so they cannot be selected or deleted. (5) Deletion is reversible during editing via Undo or Select > Reset, but removing a Scene Manager row is not undoable. (6) Fully transparent Gaussians can be selected, so invisible leftovers that cost memory can be removed. (7) PlayCanvas separately lists floaters, background noise, oversized files and artifacts as reasons to edit, and offers a splat-transform CLI for scripted work. Caution (inference). Compressed SOG output is lossy by design, so keep an uncompressed master before exporting and do cleanup before quantisation. Failure modes. Deleting hidden-but-needed Gaussians with depth off; relying on viewport appearance alone. Limitations. Docs only; no editor session was run. Editing does not recover unseen regions, which is a capture problem. Version/date. Fetched 2026-10-23; SuperSplat licence text begins with a permission grant (MIT-style).

Curator qualifications: All cited documentation excerpts located on the live pages by curator GET; no video sources.

Limitations: Tool docs; the MIT identification for SuperSplat is read from the permission-grant text, whose full terms were not audited. The keep-a-master advice is inference.

Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

```json
{
  "citations": [
    {
      "url": "https://raw.githubusercontent.com/playcanvas/developer.playcanvas.com/main/docs/user-manual/gaussian-splatting/editing/index.md",
      "note": "Why Edit Gaussian Splats?; Selection Depth and Footprint; Selection Depth and Footprint; Lock, Delete, and Restore; Lock, Delete, and Restore; Intro; LICENSE"
    },
    {
      "url": "https://raw.githubusercontent.com/playcanvas/developer.playcanvas.com/main/docs/user-manual/supersplat/editor/editing-splats.md",
      "note": "Why Edit Gaussian Splats?; Selection Depth and Footprint; Selection Depth and Footprint; Lock, Delete, and Restore; Lock, Delete, and Restore; Intro; LICENSE"
    },
    {
      "url": "https://raw.githubusercontent.com/playcanvas/developer.playcanvas.com/main/docs/user-manual/gaussian-splatting/formats/sog.md",
      "note": "Why Edit Gaussian Splats?; Selection Depth and Footprint; Selection Depth and Footprint; Lock, Delete, and Restore; Lock, Delete, and Restore; Intro; LICENSE"
    },
    {
      "url": "https://raw.githubusercontent.com/playcanvas/supersplat/main/LICENSE",
      "note": "Why Edit Gaussian Splats?; Selection Depth and Footprint; Selection Depth and Footprint; Lock, Delete, and Restore; Lock, Delete, and Restore; Intro; LICENSE"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] Problem. Raw splats contain floaters and stray Gaussians. Conditions. Browser-based SuperSplat Editor (open source) on a trained splat. Method. (1) Select the splat in the Scene Manager first: selection tools affect only the active splat. (2) Choose a tool by task: Flood selection for isolated floaters, sphere or box volumes for 3D regions, Brush or Lasso for organic areas. (3) Turn on Selection Depth to select only the visible surface when cleaning without punching through; Selection Footprint selects by projected ellipse so large soft Gaussians at an edge are included. (4) Lock finished areas so they cannot be selected or deleted. (5) Deletion is reversible during editing via Undo or Select > Reset, but removing a Scene Manager row is not undoable. (6) Fully transparent Gaussians can be selected, so invisible leftovers that cost memory can be removed. (7) PlayCanvas separately lists floaters, background noise, oversized files and artifacts as reasons to edit, and offers a splat-transform CLI for scripted work. Caution (inference). Compressed SOG output is lossy by design, so keep an uncompressed master before exporting and do cleanup before quantisation. Failure modes. Deleting hidden-but-needed Gaussians with depth off; relying on viewport appearance alone. Limitations. Docs only; no editor session was run. Editing does not recover unseen regions, which is a capture problem. Version/date. Fetched 2026-10-23; SuperSplat licence text begins with a permission grant (MIT-style). · locator: Why Edit Gaussian Splats?; Selection Depth and Footprint; Selection Depth and Footprint; Lock, Delete, and Restore; Lock, Delete, and Restore; Intro; LICENSE · source: https://raw.githubusercontent.com/playcanvas/developer.playcanvas.com/main/docs/user-manual/gaussian-splatting/editing/index.md

Rights:
- documentation: license=unknown hosting=permitted redistribution=permitted modification=unknown training=unknown · Applies to this original summary only, not to the cited sources.

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