fbx_utils.py 文件源码

def __call__(cls, bdata, armature=None):
        if bdata is None:
            return None
        dup_mat = None
        if isinstance(bdata, Object):
            key = get_blenderID_key(bdata)
        elif isinstance(bdata, DupliObject):
            key = "|".join((get_blenderID_key((bdata.id_data, bdata.object)), cls._get_dup_num_id(bdata)))
            dup_mat = bdata.matrix.copy()
        else:  # isinstance(bdata, (Bone, PoseBone)):
            if isinstance(bdata, PoseBone):
                bdata = armature.data.bones[bdata.name]
            key = get_blenderID_key((armature, bdata))

        cache = getattr(cls, "_cache", None)
        if cache is None:
            cache = cls._cache = {}
        instance = cache.get(key)
        if instance is not None:
            # Duplis hack: since duplis are not persistent in Blender (we have to re-create them to get updated
            # info like matrix...), we *always* need to reset that matrix when calling ObjectWrapper() (all
            # other data is supposed valid during whole cache live, so we can skip resetting it).
            instance._dupli_matrix = dup_mat
            return instance

        instance = cls.__new__(cls, bdata, armature)
        instance.__init__(bdata, armature)
        instance.key = key
        instance._dupli_matrix = dup_mat
        cache[key] = instance
        return instance