def build_skeleton(self, pkg_name, obj_name):
pkg = ue.get_or_create_package('{0}_Skeleton'.format(pkg_name))
skel = Skeleton('{0}_Skeleton'.format(obj_name), pkg)
# add a root bone from which all of the others will descend
# (this trick will avoid generating an invalid skeleton [and a crash], as in UE4 only one root can exist)
skel.skeleton_add_bone('root', -1, FTransform())
# iterate bones in the json file, note that we move from opengl axis to UE4
# (y on top, x right, z forward right-handed) to (y right, x forward left-handed, z on top)
for bone in self.model['bones']:
# assume no rotation
quat = FQuat()
# give priority to quaternions
# remember to negate x and y axis, as we invert z on position
if 'rotq' in bone:
quat = FQuat(bone['rotq'][2], bone['rotq'][0] * -1,
bone['rotq'][1] * -1, bone['rotq'][3])
elif 'rot' in bone:
quat = FRotator(bone['rot'][2], bone['rot'][0] - 180,
bone['rot'][1] - 180).quaternion()
pos = FVector(bone['pos'][2] * -1, bone['pos'][0],
bone['pos'][1]) * self.scale
# always set parent+1 as we added the root bone before
skel.skeleton_add_bone(bone['name'], bone['parent'] + 1,
FTransform(pos, quat))
skel.save_package()
return skel
def __init__(self, actor, label, sz, offset, rot):
print(actor)
self.width = sz[0]
self.height = sz[1]
#print("before attach",actor.get_actor_components())
mesh = actor.get_actor_component_by_type(SkeletalMeshComponent)
# we need three parts, SceneCaptureActor, ATextureReader, RenderTargetTextures
self.rendertarget = TextureRenderTarget2D()
self.rendertarget.set_property("SizeX", self.width)
self.rendertarget.set_property("SizeY", self.height)
xform = FTransform()
xform.translation = FVector(offset[0], offset[1], offset[2])
xform.rotation = FRotator(rot[0], rot[1], rot[2])
ue.log("vcam xlate {} rot {}".format(xform.translation,
xform.rotation))
self.scene_capture = actor.get_actor_component_by_type(
SceneCaptureComponent2D)
self.scene_capture.set_relative_location(offset[0], offset[1],
offset[2])
self.scene_capture.set_relative_rotation(rot[0], rot[1], rot[2])
self.scene_capture.set_property("TextureTarget", self.rendertarget)
# add reader last
self.reader = actor.add_actor_component(
ue.find_class('ATextureReader'), label + "_rendertarget")
self.reader.set_property('RenderTarget', self.rendertarget)
self.reader.SetWidthHeight(sz[0], sz[1])
def test_default_values(self): transform0 = FTransform() self.assertEqual( transform0.translation, FVector(0, 0, 0)) self.assertEqual( transform0.rotation.roll, 0) self.assertEqual( transform0.rotation.pitch, 0) self.assertEqual( transform0.rotation.yaw, 0) self.assertEqual( transform0.scale, FVector(1, 1, 1))
def AddSequencerSectionTransformKeysByIniFile(SequencerSection, SectionFileName, FileLoc):
Config = configparser.ConfigParser()
Config.read(FileLoc)
for option in Config.options(SectionFileName):
frame = float(option)/float(frameRateNumerator) #FrameRate
list = Config.get(SectionFileName, option)
list = list.split(',')
transform = FTransform(FVector(float(list[0]), float(list[1]), float(list[2])), FRotator(float(list[3]), float(list[4]), float(list[5])))
SequencerSection.sequencer_section_add_key(frame,transform)
def build_new_skeleton(self, skeleton, name, root):
new_skel = Skeleton(name)
new_skel.skeleton_add_bone(root, -1, FTransform())
for index in range(0, skeleton.skeleton_bones_get_num()):
bone_name = skeleton.skeleton_get_bone_name(index)
bone_parent = skeleton.skeleton_get_parent_index(index)
bone_transform = skeleton.skeleton_get_ref_bone_pose(index)
if bone_parent == -1:
bone_parent_name = root
else:
bone_parent_name = skeleton.skeleton_get_bone_name(bone_parent)
new_bone_parent = new_skel.skeleton_find_bone_index(bone_parent_name)
new_skel.skeleton_add_bone(bone_name, new_bone_parent, bone_transform)
return new_skel
anim_sequence2.RowIndex = 1
anim_sequence2.sequencer_set_section_range(2, 5)
anim_sequence3 = anim.sequencer_track_add_section()
anim_sequence3.RowIndex = 1
anim_sequence3.SlotName = 'Hello'
anim_sequence3.sequencer_set_section_range(0, 30)
# add a transform track/section in one shot to the actor
transform = seq.sequencer_add_track(MovieScene3DTransformTrack,
guid).sequencer_track_add_section()
transform.sequencer_set_section_range(0, 50)
# add keyframes to the transform section (from 4.20 you can directly use teh reflection api, and the methods returns the frame numbers)
print(
transform.sequencer_section_add_key(0, FTransform(FVector(0, 0,
17 * 100))))
print(
transform.sequencer_section_add_key(1.1,
FTransform(FVector(0, 0, 22 * 100))))
print(
transform.sequencer_section_add_key(2.2,
FTransform(FVector(0, 0, 26 * 100))))
print(
transform.sequencer_section_add_key(3.3,
FTransform(FVector(0, 0, 30 * 100))))
# add camera cut track (can be only one)
camera_cut_track = seq.sequencer_add_camera_cut_track()
# add two camera views
# after 4.25 overlapping camera ranges dont seem to work - or give different visualization in the Editor
anim_sequence2 = anim.sequencer_track_add_section() anim_sequence2.RowIndex = 1 anim_sequence2.sequencer_set_section_range(2, 5) anim_sequence3 = anim.sequencer_track_add_section() anim_sequence3.RowIndex = 1 anim_sequence3.SlotName = 'Hello' anim_sequence3.sequencer_set_section_range(0, 30) # add a transform track/section in one shot to the actor transform = seq.sequencer_add_track(MovieScene3DTransformTrack, guid).sequencer_track_add_section() transform.sequencer_set_section_range(0, 50) # add keyframes to the transform section (from 4.20 you can directly use teh reflection api, and the methods returns the frame numbers) print(transform.sequencer_section_add_key(0, FTransform(FVector(0, 0, 17 * 100)))) print(transform.sequencer_section_add_key(1.1, FTransform(FVector(0, 0, 22 * 100)))) print(transform.sequencer_section_add_key(2.2, FTransform(FVector(0, 0, 26 * 100)))) print(transform.sequencer_section_add_key(3.3, FTransform(FVector(0, 0, 30 * 100)))) # add camera cut track (can be only one) camera_cut_track = seq.sequencer_add_camera_cut_track() # add two camera views camera1 = camera_cut_track.sequencer_track_add_section() camera2 = camera_cut_track.sequencer_track_add_section() # spawn 2 cine cameras in the stage and posses them with the sequencer cine_camera = world.actor_spawn(CineCameraActor) camera_guid = seq.sequencer_add_actor(cine_camera)