removing only Actors from render?

[Anon]

for i in render.getChildren():
    if isinstance(i, Actor):
        i.cleanup()
        i.removeNode()
    else:
        i.removeNode()

doesnt work

[rdb]

See:
panda3d.org/manual/index.php … Animations

@manual

The python class Actor is designed to hold an animatable model and a set of animations. Since the Actor class inherits from the NodePath class, all NodePath functions are applicable to actors.

Note, however, that Actor is a Python class that extends the C++ NodePath class. For the most part, you don’t have to think about this: Actor inherits sensibly from NodePath and generally does what you expect. There are a few subtle oddities, though. When you attach an Actor into a scene graph, the low-level C++ Panda constructs only records the NodePath part of the Actor in the scene graph, which is fine as long as you also keep a pointer to the Actor instance in your Python objects. If you let the Actor destruct, however, its visible geometry will remain, but it will cease animating (because it is no longer an Actor). Also, even if you keep the Actor object around, if you retrieve a new pointer to the Actor from the scene graph (for instance, as returned by the collision system), you will get back just an ordinary NodePath, not an Actor.

[Anon]

So what should I be doing?

[rdb]

You could find another way, such as storing the Actor objects as a tag (beware the circular references though).

[Anon]

So youre saying I can’t find out if an actor is an instance of an Actor class?

[rdb]

No, you can’t. Not only because NodePath is a C++ class, but also because NodePath is a simple wrapper - if you get a NodePath pointer from something, it may not be the same one as the all the other NodePaths that point to the same node.

[Anon]

Um, I can have a common parent for all actors.

[Anon]

I made a common parent for all actors to avoid checking if the child node is Actor or not

parent = render.attachNewNode('parent')
# add actors here, reparent to parent

for i in parent.getChildren():
    i.cleanup()
    i.removeNode()

this also doesnt work, i is always nodepath, not actor.

[rdb]

Right! Because getChildren() returns new NodePath objects, that are not necessarily the same as your Actor’s (it’ll be a different NodePath object pointing to the same PandaNode).

And also because getParent() is written in C++: on the C++ side, your Actor is just a NodePath.

[Anon]

Well what can be done?
Never used tags. Is it simpler than storing each Actor in a python list?

BTW, is there some reason for having Actor as Pyhton class? Or is it just not have been ported to C++ yet?