What do World Labs' docs state about Marble exports entering a DCC, engine or virtual-production pipeline: file formats, units and scale, coordinate convention, baked vs dynamic lighting, and collision?

Marble exports splats (PLY, SPZ) and GLB meshes. Docs state: splats need third-party plugins in Unreal, Unity, Blender and Houdini; collider meshes (100-200k triangles) are for coarse physics, not visual rendering; units are 'arbitrary model units' in API exports, with a metric_scale_factor and ground_plane_offset supplied for conversion; and the coordinate convention is documented inconsistently across pages and dates (OpenCV-style 'raw' for SPZ, OpenGL default from Dec 2025, an OpenGL/OpenCV option from Jan 2026). No inspected page says whether lighting is baked into splat colours; plugin pages describe relighting and shadows as plugin-dependent. Curator correction 2026-10-23 (discovery audit record C3-B598-02; sources re-fetched 2026-10-23, excerpts re-located by curator GET): Correction to C3-B012-W4-05 (nature: changed or unsupported on the cited pages). Original: units are 'arbitrary model units' in API exports; coordinate convention documented inconsistently, with OpenGL default from Dec 2025. Audit result (2026-10-23): the cited SPZ rendering page says the files are in the generated asset coordinate frame and that metric_scale_factor converts raw generated asset units to metres and ground_plane_offset places the metric ground at y = 0; the phrase 'arbitrary model units' does not occur on either cited page. The cited export-spec FAQ states the default Marble worlds are in an OpenCV coordinate system and recommends flipping Y and Z for OpenGL tools; no OpenGL-default statement or December 2025 / January 2026 dates appear on either cited page, so the 'inconsistent across dates' claim rests on material outside the cited sources. Agents should apply the scale metadata (metres) and the OpenCV-to-OpenGL flip as documented now, and re-check if a changelog is later cited. Version/date: fetched 2026-10-23. Curator qualifications: specs.md 76-78: 'Default world labs worlds are in OpenCV coordinate system (+x left, +y down, +z forward). Many DCC software are in the OpenGL coordinate system (+x left, -y down, -z forward). To correct for it, perform an OpenCV-to-OpenGL transformation by scaling the Y and Z ...'. release-notes 54: 'World generations now export in the OpenGL coordinate system (previously OpenCV) for both splats and meshes'; 38-39: 'Assets are now roughly scaled and grounded to better match real-world units' and 'Option to choose between OpenGL and OpenCV coordinate systems'. rendering-spz 91: 'Generated Marble SPZ assets use the marble_raw_opencv convention'; 38: 'metric_scale_factor converts raw generated asset units to meters'. faq 49: 'Generated splat assets are exported in arbitrary model units, not meters'. Rights/verification notes are shown as limitations (L00 0019/ADR-0011): they restrict reuse of the cited material or record what was not verified; they are not cleared by this summary. Limitations: [rights_conflict_record] eligible_conflict_preserved Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

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      "url": "https://docs.worldlabs.ai/marble/export/specs.md",
      "note": "docs.worldlabs.ai/marble/export/specs.md lines 76-80; api/rendering-spz.md lines 27-91; api/faq.md lines 49-56; marble/release-notes.md lines 38-39, 54"
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    {
      "url": "https://docs.worldlabs.ai/marble/release-notes.md",
      "note": "docs.worldlabs.ai/marble/export/specs.md lines 76-80; api/rendering-spz.md lines 27-91; api/faq.md lines 49-56; marble/release-notes.md lines 38-39, 54"
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      "url": "https://docs.worldlabs.ai/api/rendering-spz.md",
      "note": "docs.worldlabs.ai/marble/export/specs.md lines 76-80; api/rendering-spz.md lines 27-91; api/faq.md lines 49-56; marble/release-notes.md lines 38-39, 54"
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      "url": "https://docs.worldlabs.ai/marble/export/mesh.md",
      "note": "docs.worldlabs.ai/marble/export/specs.md lines 76-80; api/rendering-spz.md lines 27-91; api/faq.md lines 49-56; marble/release-notes.md lines 38-39, 54"
    },
    {
      "url": "https://docs.worldlabs.ai/marble/export/gaussian-splat/unreal.md",
      "note": "docs.worldlabs.ai/marble/export/specs.md lines 76-80; api/rendering-spz.md lines 27-91; api/faq.md lines 49-56; marble/release-notes.md lines 38-39, 54"
    },
    {
      "url": "https://docs.worldlabs.ai/marble/export/gaussian-splat/index.md",
      "note": "docs.worldlabs.ai/marble/export/specs.md lines 76-80; api/rendering-spz.md lines 27-91; api/faq.md lines 49-56; marble/release-notes.md lines 38-39, 54"
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