feat: add SOG compression for smaller splat delivery#23
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mohamedsobhi777 wants to merge 1 commit intoaukilabs:developfrom
Open
feat: add SOG compression for smaller splat delivery#23mohamedsobhi777 wants to merge 1 commit intoaukilabs:developfrom
mohamedsobhi777 wants to merge 1 commit intoaukilabs:developfrom
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Add a post-processing step that compresses the Gaussian Splat PLY output to SOG (Spatially Ordered Gaussians) format using 3dgsconverter, achieving ~2.5-20x file size reduction depending on SH content. The SOG file is uploaded first (smaller, faster for viewers), followed by the lossless .splat as backup. SOG compression is best-effort — if it fails, the pipeline still succeeds with the .splat output. The domain-viewer already supports SOG via the splat_data_sog data type, so no viewer changes are needed.
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Summary
.splatconversion.sogfile first (smaller, faster viewer load), then the lossless.splatas backup.splatoutputsplat_data_sogto thePCSOGSZIPformatChanges
compress_sog.py— converts PLY to SOG using3dgsconverterrun.py— adds non-fatal SOG compression step afterconvert_ply2splatserver/rust/runner/src/lib.rs— uploads SOG assplat_data_sogbefore.splatuploadDockerfile— adds3dgsconverterdependency andcompress_sog.pydocs/specs/2026-03-30-sog-compression-design.md— design specTest plan
compress_sog.pyconverts a PLY file to SOG formatrun.pycompletes successfully with SOG steprun.pycompletes successfully when3dgsconverteris unavailable (fallback).sogand.splatartifacts.splatand.sogoutputs