Tracker: GlobeView graduation

Target Use Case

Track the remaining work needed to move GlobeView from experimental to production-ready.

Status Snapshot

GlobeView graduation has moved from a short 2024 checklist into a focused v9.4/v10 work stack. The core MapLibre alignment and initial controller work have landed. The remaining work now breaks down into four tracks:

• camera/controller parity
• terrain, 3D tiles, and projection correctness
• tile loading quality during globe motion
• MapLibre interleaved depth, culling, and billboard behavior

Foundation

• Align GlobeView common space, scale, clipping planes, and camera parameters with MapLibre GL JS v5 - #9201
• Add baseline MapboxLayer / MapboxOverlay support for globe projection - #7920
• Update default view once MapLibre projection is known in React/interleaved mode - #9794
• Repair baseline GlobeController pan/zoom behavior after the MapLibre alignment - #9913, closes #9676
• Add GlobeController inertia, tilt, and pan support - #10298
• Add reusable doubleClickDragZoom controller gesture and mobile interaction docs - #10327

Landed / Merged Graduation Work

• TerrainLayer support in GlobeView - #10250
• _TerrainExtension support in GlobeView - #10251
• Tile3DLayer / COORDINATE_SYSTEM.METER_OFFSETS support in GlobeView, plus improved globe far-plane precision - #10252
• Center-priority TileLayer request scheduling for pan, zoom, and globe transitions - #10364

Active PR Stack

• Opt-in pointer-anchored GlobeView zoom for wheel gestures and transitions - #10385, supersedes #10307
• Terrain-aware GlobeController default without inheriting Web Mercator controller semantics - #10379
• WebMercator terrain and imagery tile row remapping for GlobeView - #10350
• Coverage LOD tile prefetching for smoother TileLayer / TerrainLayer transitions - #10306
• Tile loading placeholders for smoother tiled loading UX - #10359
• Shader-based globe occlusion for IconLayer / TextLayer billboards - #9975
• Shared TerrainLayer tile data/cache RFC - #10374

Open Questions / Follow-ups

• Shared clamp vs damp view-state constraint model for controllers and transitions - #10377
• Globe-aware FlyToInterpolator path is still not active; earlier draft closed - #10378
• Projection switching / synchronization issues with MapLibre globe - #9466
• MapLibre globe depth/culling/billboard behavior - #9592, #9554, #9777, #9975
• ScatterplotLayer artifacts in MapLibre interleaved globe mode, including large-radius draping - #10206
• BitmapLayer / TileLayer globe subdivision and low-zoom projection issues - #7104, #6088, #10011
• Path/polygon/line subdivision and antimeridian handling - #5631, #7104, #6088
• Mesh/model orientation parity in globe mode - #7362
• Documentation cleanup for GlobeView limitations once support is no longer experimental - #9190

Recently Closed / Likely Resolved

• PathLayer flipped faces in GlobeView - #5143
• Windows TileLayer / GlobeView visibility report - #9853
• Tile3DLayer small tile gaps - #4262
• Bitmap layer on MapLibre globe not fully displayed - #9357