function dragAcceleration
rigidBody.ts:103
Drag acceleration for a body moving through an atmosphere.
ballisticCoefficient is mass / (dragCoefficient × area) in kg/m²; higher
means it punches through. Velocity must be relative to the air, which on a
rotating planet is not the same as velocity in the planet-centered frame —
expressing it in the rotating surface frame is what gets that right for free.
- densitynumber
- Undocumented
- relativeVelocityVec3
- Undocumented
- ballisticCoefficientnumber
- Undocumented
ReturnsVec3