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Unity Engine

PhysicsBody.WindInput

Input to PhysicsBody.ApplyWind describing the wind velocity, drag and lift coefficients and the shape filter used to compute aerodynamic forces per attached shape.
Read time 1 minuteLast updated 12 days ago

Definition

  • Type: Struct
  • Namespace: Unity.U2D.Physics
  • Assembly: UnityEngine.PhysicsCore2DModule
public struct PhysicsBody.WindInput

Static Fields

Value

Description

MaxForceThe maximum magnitude allowed for each component of _force. Larger magnitudes have no useful effect because body speeds are capped each simulation step, so values are clamped into this range.

Constructors

Constructor

Description

WindInput()Create a default PhysicsBody.WindInput. The _mask defaults to PhysicsMask.All so every attached shape contributes unless explicitly filtered out.

Properties

Property

Description

dragDrag coefficient. Scales the wind contribution in the relative-velocity term that drives the per-shape aerodynamic force.
forceThe wind velocity vector. Scaled by _drag when computing the per-shape aerodynamic relative velocity. Each component's magnitude is clamped to PhysicsBody.WindInput.MaxForce.
liftLift coefficient. Scales the perpendicular component of the per-edge aerodynamic force (capsules and polygons only; circles ignore lift).
maskCategory mask used to filter which attached shapes contribute. A shape participates iff (shape.contactFilter.categories.bitMask & mask.bitMask) != 0. Defaults to PhysicsMask.All when the input is created via the parameterless constructor.
useTriggersWhen true, trigger shapes contribute to wind alongside solid shapes. When false, trigger shapes are skipped.