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Wind tags describe the speed and variation of wind in a BSP cluster as a part of its assigned weather palette. Wind affects local point_physics and causes the movement of flags, weather, particle_systems, and more.

Structure and fields

Field Type Comments
velocity Bounds
  • Unit: world units

Upper and lower bounds for wind speed. Technically, this is not a true "velocity" because it is not a vector; wind direction is set in the BSP's weather palettes.

Field Type Comments
min float
max float
variation area Euler2D
Field Type Comments
yaw float

Rotation to the left or right around the Z (vertical) axis.

pitch float

Rotation up or down.

local variation weight float
local variation rate float
damping float


Thanks to the following individuals for their research or contributions to this topic:

  • Kavawuvi (Invader tag definitions)
  • MosesOfEgypt (Tag structure research)