Irrlicht Engine

i know this is a stupid question, but im just new to c++ and newton. im reading every tutorial i find about newton, but i just cant understand what are those callback functions "NewtonBodySetTransformCallback" and "NewtonBodySetForceAndTorqueCallback". what are they used for?

hybrid wrote:Try to change the constructor to use const vector3df&, otherwise pass the constructor a variable instead of a temporary object.

thanks,that seems to work, it compiles but now when i run the program it crashes. is
this code buggy or its me?

im trying this but i always get this error: no matching function for call to `cFollowingCamera::cFollowingCamera(irr::scene::ISceneNode*&, irr::scene::ISceneManager*&, irr::core::vector3df, irr::f32)' candidates are: cFollowingCamera::cFollowingCamera(const cFollowingCamera&) note cFollo...

me uno a esto. soy vigués de nacimiento, y estudiante de ingenieria informatica (primer curso aun) en la universidad de a coruña. encantado de unirme a esta nuestra comunidad