manage owner

[dongju.jeong]

Is camera.release() also required in init() to clear the camera from the shutdown function?

 

[alexander]

Hi dongju.jeong,

There are two types of objects: one of them destroys the internal engine object in the ~Ptr() destructor and another one not.
If you see these methods:
->grab();
->release();
->isOwner();
This is an indicator that the engine object will be destroyed in the ~Ptr() destructor (if you haven't transferred ownership of this object through release() -> grab() functions).

If you don't see this, ~Ptr() destructor will not destroy the engine object. But at this point a memory leak is possible. If this object wasn't attached to another one (Camera to Player, MeshDynamic to ObjectMeshDynamic, etc.) then you need to use Camera::release_ptr(my_camera_pointer.get()) to manually destroy the internal engine object.

Is camera.release() also required in init() to clear the camera from the shutdown function?
So, no, it is not required.

Best regards,
Alexander

[dongju.jeong]

Is it mean Ownership is automatically reassigned on playerspectator? so, camera  is automically cleared too?

then, What is this process?

Is this required only in UnigineScript?

[alexander]

Hi dongju.jeong,

Is it mean Ownership is automatically reassigned on playerspectator? so, camera  is automically cleared too?
There is some "secret feature" (bad design): when you use PlayerSpectator::setCamera(CameraPtr cam) you don't pass the pointer of the Camera to the PlayerSpectator. You just make a copy and apply it to the inner Camera object.
For example:

CameraPtr cam = Camera::create();
cam->setFov(110.0f);
playerSpectator->setCamera(cam);

cam->setFov(30.0f); // this will not change in the PlayerSpectator!
playerSpecator->setCamera(cam); // you need to call setCamera() again

Is this required only in UnigineScript?
Yes, it is.
 

Best regards,
Alexander