OptionallinearOverride the linear-detection threshold. Production should leave this at the default; exposed for tests that pin the threshold behaviour.
OptionallinearOverride the minimum longest-axis extent (world units) at/above which the linear policy is allowed to apply. Production should leave this at the default; exposed for tests that pin the size-floor behaviour.
OptionalviewportShortest viewport dimension in pixels (height for landscape).
Vertical field-of-view in radians.