setting mEnableTireSmoke would work or you can edit the if case like this:
if (mEnableTireSmoke && cs && physicalMaterial->mSmokeParticle != nullptr && !mVehicle->getIsSleeping())
setting mEnableTireSmoke would work or you can edit the if case like this:
if (mEnableTireSmoke && cs && physicalMaterial->mSmokeParticle != nullptr && !mVehicle->getIsSleeping())