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Eye-order differences between st3d and Matroska values (F2) from producer reading.\n\nLimitations: Specs/report read 2026-10-22; no file injected or played.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://github.com/google/spatial-media/blob/2308497c39bb604a7c3ba56ac17e302f2b1b6a96/docs/vr180.md","note":"vr180.md at 2308497c, sections 1-3; V2 RFC mshp/mesh box L357-384"},{"url":"https://github.com/google/spatial-media/blob/2308497c39bb604a7c3ba56ac17e302f2b1b6a96/docs/spherical-video-v2-rfc.md","note":"vr180.md at 2308497c, sections 1-3; V2 RFC mshp/mesh box L357-384"}]},"categories":["T10","T19"],"tags":[],"language":"en","visibility":"public","moderation":{"state":"visible","reason":null},"evidence":{"inspection":"source_inspected","execution":"not_run","review":"unreviewed","review_revision":null,"claims":[{"url":"https://github.com/google/spatial-media/blob/2308497c39bb604a7c3ba56ac17e302f2b1b6a96/docs/vr180.md","claim":"VR180 is a profile of Spherical V2 metadata: two projection meshes (one per eye; ~40x40 grids typical), per-eye UV adjustment by stereo mode, and optional camm camera-motion metadata. 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Mesh index bit widths are ceil(log2(count*2)) with zig-zag deltas (defined in the V2 RFC mesh box, cited by VR180).\n\nCurator qualifications: Specs/report read 2026-10-22; no file injected or played. Eye-order differences between st3d and Matroska values (F2) from producer reading.\n\nLimitations: Specs/report read 2026-10-22; no file injected or played.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://github.com/google/spatial-media/blob/2308497c39bb604a7c3ba56ac17e302f2b1b6a96/docs/vr180.md","note":"vr180.md at 2308497c, sections 1-3; V2 RFC mshp/mesh box L357-384"},{"url":"https://github.com/google/spatial-media/blob/2308497c39bb604a7c3ba56ac17e302f2b1b6a96/docs/spherical-video-v2-rfc.md","note":"vr180.md at 2308497c, sections 1-3; V2 RFC mshp/mesh box L357-384"}]},"tags":[],"type":"article","links":[],"title":"How does the VR180 format define projection meshes, per-eye UV adjustment by stereo mode, and camera-motion metadata?","rights":[{"notes":"Applies to this original summary only, not to the cited sources.","hosting":"permitted","component":"documentation","license_id":null,"modification":"unknown","evidence_urls":[],"model_training":"unknown","redistribution":"permitted"}],"summary":"VR180 is a profile of Spherical V2 metadata: two projection meshes (one per eye; ~40x40 grids typical), per-eye UV adjustment by stereo mode, and optional camm camera-motion metadata. 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