Fractional cloud coverage in [0, 1].
Cloud optical-density multiplier in [0, 4].
Cumulonimbus/storm shaping in [0, 1].
ReadonlysunNormalized world-space direction from the scene toward the sun.
Procedural weather animation time in seconds.
ReadonlywindHorizontal wind direction; Y is ignored.
Wind speed in world units per second.
Mutable state sampled by the weather renderer at frame-record time.
Updating these values does not recreate pipelines. Call
invalidateHistory()after a discontinuous preset or time-of-day jump; continuous animation may updatetimeSecondsandsunDirectionevery frame without resetting history.