Precipitation Surfaces

Treat weather as a coupled event, particle, and surface-response system. Do not add rain or snow particles that are visually disconnected from the ground.

This skill contains exemplary examples and assets beyond descriptive guidance, they're worth studying, referencing, or even copying. Use them sufficiently when relevant and do NOT blindly skip them.

Build order

weather envelope
  -> falling precipitation volume
  -> world/object surface mask
  -> displaced or optical surface response
  -> impact residue and splashes
  -> shared lighting/post presentation