clone method
Returns a deep copy of this instance, preserving op if present.
Implementation
@override
VrStereoConfigD clone() => .new(
op: op,
projection: .from(projection),
viewOffset: .from(viewOffset),
leftLensCenter: .from(leftLensCenter),
rightLensCenter: .from(rightLensCenter),
leftScreenCenter: .from(leftScreenCenter),
rightScreenCenter: .from(rightScreenCenter),
scale: .from(scale),
scaleIn: .from(scaleIn),
);