参考:
Rigid Body Dynamics — NVIDIA PhysX SDK 4.1 Documentation
说明:
PxActor::setActorFlag(PxActorFlag::eDISABLE_GRAVITY, true);
或着将重力设置为0
在SampleSubmarine示例中可以看到,为了模拟飞船的运动效果,预先关闭了它的重力模拟
//disable the current and buoyancy effect for the sub.mSubmarineActor->setActorFlag(PxActorFlag::eDISABLE_GRAVITY, true);