ray-query-3d-picking-contract

Deterministic 3D picking in Godot utilizes Camera3D and PhysicsDirectSpaceState3D to standardize ray origin and direction construction, ensuring consistent object selection results regardless of query execution timing.

Line-of-sight ray queries in Godot require explicit collision masks and exclusion policies combined with physics-safe querying cadences to accurately check if a character has a clear path to a target.

Inconsistent raycast hits occur when querying cadences are not physics-safe or when collision masks and exclusions are not explicitly defined, which this Skill standardizes to prevent non-deterministic results.

Yes, Camera3D projection can perform mouse-based 3D object selection by constructing a ray from the screen center or cursor position, querying PhysicsDirectSpaceState3D, and converting the first hit to gameplay logic.

Filtering 3D ray query results involves applying explicit collision masks and exclusion arrays to the PhysicsDirectSpaceState3D query, ensuring deterministic hit ordering and accurate hit-to-domain conversion.