# Rain pooling: no input, the scene idles under the default rain (0.35).
# The field starts pre-filled (initial_pool 0.6): the deck DRAINS toward
# the river down to the drainage floor (0.15), the spawn bank tile sits
# on a long drainage path and rises as upstream water passes through,
# and the river stays pinned. The rain scavenges the smog (atmo.smog
# falls from 0.5 toward the wet equilibrium ~0.1).
# frames: 1200
