quatConjugate
quatConjugate(
q):Quat
Defined in: src/modules/math/quat.ts:30
The conjugate (w, -x, -y, -z) — the inverse rotation for a unit
quaternion, and the cheapest way to undo one. A non-unit q would need a
true q⁻¹ = conjugate(q) / |q|², so normalise first; composing unit
quaternions with quatMul keeps them unit, so the usual path never needs to.