Access the Weathering Properties tab for individual materials. These Properties enable users to uniquely control how a material can be weathered through the Manual weathering option.
Enable or disable manual weathering.
Turning on manual weathering will make the material immune to any global weathering changes.
Manual weathering can be used in the following ways:
Controls the rain drip scale of the material.
Controls the angle at which the rain drips are cut off.
Controls the size of ripples formed by the rain drops.
Controls the angle at which the puddles are cut off
Controls the wetness and rain intensity of the material.