def update_keyframes(self):
with self.output:
fp = lambda x: "%f,%f,%f" % x
fq = lambda x: "%f,%f,%f,%f" % x
options = [(self.format_keyframe(t, p, q), i)
for i, (t, p, q) in enumerate(
zip(self.times, self.positions, self.quaternions))]
self.select_keyframes.options = options
self.position_track = pythreejs.VectorKeyframeTrack(
name='.position',
times=self.times,
values=self.positions,
interpolation=self.select_interpolation.value)
self.rotation_track = pythreejs.QuaternionKeyframeTrack(
name='.quaternion',
times=self.times,
values=self.quaternions,
interpolation=self.select_interpolation.value)
if len(self.positions):
self.camera_clip = pythreejs.AnimationClip(
tracks=[self.position_track, self.rotation_track])
self.mixer = pythreejs.AnimationMixer(self.camera)
self.camera_action = pythreejs.AnimationAction(
self.mixer, self.camera_clip, self.camera)
self.camera_action_box.children = [self.camera_action]
else:
self.camera_action_box.children = []
def create_group_action(self, objs, transformations, times):
# TODO: how to start multiple animations at once
if len(transformations) != len(times):
raise ValueError("Pass equal amount of transformations and times")
x, y, z, w = objs[0].quaternion
Tinit = Rotation.from_quaternion([w, x, y, z]) * Translation(
objs[0].position)
positions = []
quaternions = []
for M in transformations:
Sc, Sh, R, T, P = (M * Tinit).decomposed()
positions.append(list(T.translation))
quaternions.append(R.quaternion.xyzw)
position_track = p3js.VectorKeyframeTrack(name='.position',
times=times,
values=list(
flatten(positions)))
rotation_track = p3js.QuaternionKeyframeTrack(
name='.quaternion', times=times, values=list(flatten(quaternions)))
animation_group = p3js.AnimationObjectGroup()
animation_group.exec_three_obj_method('add',
objs[0]) # this is not working
obj_clip = p3js.AnimationClip(tracks=[position_track, rotation_track])
mixer = p3js.AnimationMixer(animation_group)
obj_action = p3js.AnimationAction(mixer, obj_clip, animation_group)
return obj_action
def create_action(self, obj, transformations, times):
if len(transformations) != len(times):
raise ValueError("Pass equal amount of transformations and times")
x, y, z, w = obj.quaternion
Tinit = Rotation.from_quaternion([w, x, y, z]) * Translation(obj.position)
positions = []
quaternions = []
for M in transformations:
Sc, Sh, R, T, P = (M * Tinit).decompose()
positions.append(list(T.translation))
quaternions.append(R.quaternion.xyzw)
position_track = p3js.VectorKeyframeTrack(name='.position', times=times, values=list(flatten(positions)))
rotation_track = p3js.QuaternionKeyframeTrack(name='.quaternion', times=times, values=list(flatten(quaternions)))
obj_clip = p3js.AnimationClip(tracks=[position_track, rotation_track])
obj_action = p3js.AnimationAction(p3js.AnimationMixer(obj), obj_clip, obj)
return obj_action