Field Placement

A spatially anchored placement for a surface. Field placement allows a surface to appear at a real-world or world-field anchor without changing surface identity.

Allowed:

• field placement
• field-anchored surface

Forbidden:

• map page
• AR-only panel

Notes:

• Field placement is persisted as surface placement metadata.
• Runtimes decide how to render the placement for web, Android, or XR.