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3DGS Viewer

3DGS quality review

Compare Gaussian Splatting models side by side with synchronized camera controls

Use the 3DGS comparison tool to inspect model versions after training, conversion, simplification, or compression. Load up to three files, move one camera, and review the same viewpoint across each version so artifacts, missing detail, and file-size tradeoffs are easier to judge.

Load up to three Gaussian Splatting files in a single workspace for direct visual comparison.

Synchronize camera motion across viewers so every model is inspected from the same angle.

Calculate view-based SSIM and save comparison screenshots when you need a quick quality record.

How to use this tool

  1. 1Drop one or more 3DGS files into the comparison grid or click an empty slot to upload.
  2. 2Use the first slot as your reference model when comparing simplified or converted versions.
  3. 3Orbit, pan, and zoom to inspect fine detail, silhouettes, transparency, and floating artifacts.
  4. 4Toggle point rendering or adjust point size when you need to inspect the underlying splat distribution.
  5. 5Calculate SSIM or export a screenshot after you find a camera view that represents the quality difference.

Best used for

Checking whether a simplified model still matches the original scene.

Comparing PLY, SPZ, SPLAT, KSPLAT, and SOG exports from the same source model.

Reviewing multiple training runs before publishing the best result.

Creating before and after screenshots for client review or technical notes.

Frequently asked questions

How many Gaussian Splatting models can I compare?+

The comparison workspace supports up to three models at the same time. This is enough for a reference model, a compressed model, and an alternate export or training result.

Can I synchronize the camera between models?+

Yes. The compare viewer keeps camera movement synchronized so you can inspect the same angle across all loaded files and make visual differences easier to spot.

What is SSIM used for in this tool?+

SSIM gives a camera-view based similarity score between rendered views. It is useful as a quick signal, but final quality should still be checked visually across the views that matter for your scene.

Which formats can I compare?+

You can load common 3DGS formats including PLY, SPZ, SPLAT, KSPLAT, and SOG, then compare how different exports or simplification settings affect the rendered result.