from panda3d.core import NodeReferenceCount
This class specializes
ReferenceCountto add an additional counter, called node_ref_count, for the purposes of counting the number of times the object is referenced by a “node”, whatever that may mean in context.
The new methods
nodeUnref()automatically increment and decrement the primary reference count as well. There also exists a NodePointerTo<> class to maintain the
Explicitly increments the node reference count and the normal reference count simultaneously.
nodeUnref() → bool¶
Explicitly decrements the node reference count and the normal reference count simultaneously.
The return value is true if the new reference count is nonzero, false if it is zero.
Decrements the node reference count without affecting the normal reference count. Intended to be called by derived classes only, presumably to reimplement