USDValue.Vec4h A 4-component half-precision vector. Declaration@frozen struct Vec4h TopicsInitializersinit()init(_:_:_:_:)Instance PropertiessimdwxyzSubscriptssubscript(_:) RelationshipsConforms ToBitwiseCopyableCopyableCustomStringConvertibleEquatableEscapableHashableSendableSendableMetatypeUSDPrim.Attribute.MetadataValueUSDPrim.Attribute.ValueUSDValueProtocol