Question

谁有UNITY3D里AddForceAtPosition的源码呢

Answer 1

PX_INLINE void addForceAtPosInternal(PxRigidBody& body, const PxVec3& force, const PxVec3& pos, PxForceMode::Enum mode, bool wakeup)
{
if(mode == PxForceMode::eACCELERATION || mode == PxForceMode::eVELOCITY_CHANGE)
{
Ps::getFoundation().error(PxErrorCode::eINVALID_PARAMETER, __FILE__, __LINE__,
"PxRigidBodyExt::addForce methods do not support eACCELERATION or eVELOCITY_CHANGE modes");
return;
}

const PxTransform globalPose = body.getGlobalPose();
const PxVec3 centerOfMass = globalPose.transform(body.getCMassLocalPose().p);

const PxVec3 torque = (pos - centerOfMass).cross(force);
body.addForce(force, mode, wakeup);
body.addTorque(torque, mode, wakeup);
}

Answer 2

http://docs.unity3d.com/Documentation/ScriptReference/Rigidbody.AddForceAtPosition.html