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# Copyright 2019 The glTF-Blender-IO authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
def simulate_stash(obj, gltf_animation_name, action, start_frame):
# Simulate stash :
# * add a track
# * add an action on track
# * lock & mute the track
# * remove active action from object
tracks = obj.animation_data.nla_tracks
new_track = tracks.new(prev=None)
new_track.name = gltf_animation_name if gltf_animation_name is not None else action.name
strip = new_track.strips.new(action.name, start_frame, action)
new_track.lock = True
new_track.mute = True
obj.animation_data.action = None
def restore_last_action(obj):
if not obj.animation_data:
return
tracks = obj.animation_data.nla_tracks
if len(tracks) == 0:
return
if len(tracks[0].strips) == 0:
return
obj.animation_data.action = tracks[0].strips[0].action
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