§23's mass rule: "mass must be positive on dynamic bodies (validated,
§85); non-simulated mass is expressed through the static and kinematic body
types, never mass = 0."
Exported because the RigidBody component's mass setter (WP-5.2) enforces
the same rule on assignment, and there must be exactly one statement of it.
An omitted mass is legal at any body type — §23 derives it from collider
density then (§24, §25).
§23's mass rule: "
massmust be positive on dynamic bodies (validated, §85); non-simulated mass is expressed through the static and kinematic body types, nevermass = 0."Exported because the
RigidBodycomponent'smasssetter (WP-5.2) enforces the same rule on assignment, and there must be exactly one statement of it. An omitted mass is legal at any body type — §23 derives it from collider density then (§24, §25).