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Foliage Wind

Grass, bushes and trees sway and bend away from the player (MM_KurinAssetFoliage_01a). Each switch off = no cost. Flags and tarps: Cloth Wind.

Switches

Switch What it does Needs
Use Wind? Main bend Vertex color R (0 root, 1 top)
Use Wind Height Mask? Bend by height, no painting: good for grass Wind Mask Height (cm)
Use Branch And Leaf Wind? Branch sway, leaf flutter Vertex color G branch, B leaf, A phase
Use Global Wind? One wind for the level from MPC_KurinWind (ships in _Core/Materials) —
Use Interaction? Bends away from up to 4 characters or vehicles Blueprint below

Interaction setup

Character Blueprint, Event Tick (Tick Group Post Physics), on MPC_KurinWind:

  1. Copy Interactor 0 into Interactor 0 Prev (keeps TSR and motion blur clean).
  2. Set Interactor 0 = actor location (RGB) + radius in cm (A, e.g. 80). NPCs use Interactor 1–3.
  3. In the foliage MI: Use Interaction? on, tune Interaction Strength.

Tips

  • Storms: change Wind Strength in MPC_KurinWind from a Blueprint.
  • Set World Position Offset Disable Distance on the components (3000–5000 cm); LOD2+: Use Distant LOD?.