def rigRecon(input, context, timeOffset, rot, transl):
for name in input.keys():
entry = input[name]
bpy.ops.object.select_pattern(pattern=name + "*", extend=False)
print("pattern: %s" % name + '*')
obj = context.selected_objects[0]
print("Keyframing %s" % obj.name)
prevPose = None
prevEuler = None
offset = Vector((0, 0, 0))
for sFrameId in entry['log'].keys():
state = entry['log'][sFrameId]
frameId = int(sFrameId)
#print( "Adding keyFrame %d" % frameId )
context.scene.frame_set(frameId)
obj.location = state['pos']
obj.rotation_mode = 'QUATERNION'
q = Quaternion(state['pose'])
if prevPose:
if q.dot(prevPose) < 0:
q.negate()
#print('newq:',q)
# else:
# print('dotok:', prevPose, q, q.dot(prevPose))
obj.rotation_quaternion = q
#obj.rotation_euler = q.to_euler('XYZ')
#obj.rotation_euler.x += offset.x
#obj.rotation_euler.y += offset.y
#obj.rotation_euler.z += offset.z
#if prevEuler:
# d = Vector(obj.rotation_euler) - Vector(prevEuler)
# if d.length > 1:
# print("[",sFrameId,"] d: ", d )
# print('prev: ', prevEuler, 'new: ', obj.rotation_euler)
# if abs(d.x) > math.pi/2:
# offset.x += 2*math.pi
# obj.rotation_euler.x += 2*math.pi
# print( "offset.x:" , offset.x, 'newx: ', obj.rotation_euler.x )
# if abs(d.y) > math.pi/2:
# offset.y += 2*math.pi
# obj.rotation_euler.y += 2*math.pi
# print( "offset.y:" , offset.y, 'newy: ', obj.rotation_euler.y )
# if abs(d.z) > math.pi/2:
# offset.z += 2*math.pi
# obj.rotation_euler.z += 2*math.pi
# print( "offset.z:" , offset.z, 'newz: ', obj.rotation_euler.z )
#obj.rotation_euler.x -= math.pi / 2.
#bpy.ops.anim.keyframe_insert()
#obj.keyframe_insert( data_path="LocRot", index=-1,frame=frameId)
bpy.ops.anim.keying_set_active_set(type='BUILTIN_KSI_LocRot')
bpy.ops.anim.keyframe_insert()
#obj.keyframe_insert(index=-1)
#obj.keyframe_insert(data_path="location", index=-1, frame=frameId)
#obj.keyframe_insert(data_path="rotation", index=-1, frame=frameId)
prevPose = q.copy()
prevEuler = obj.rotation_euler.copy()
def remove_quaternion_discontinuities(target_obj):
# the interpolation of quaternions may lead to discontinuities
# if the quaternions show different signs
# https://blender.stackexchange.com/questions/58866/keyframe-interpolation-instability
action = target_obj.animation_data.action
# quaternion curves
fqw = action.fcurves.find("rotation_quaternion", index=0)
fqx = action.fcurves.find("rotation_quaternion", index=1)
fqy = action.fcurves.find("rotation_quaternion", index=2)
fqz = action.fcurves.find("rotation_quaternion", index=3)
# invert quaternion so that interpolation takes the shortest path
if len(fqw.keyframe_points) > 0:
current_quat = Quaternion((
fqw.keyframe_points[0].co[1],
fqx.keyframe_points[0].co[1],
fqy.keyframe_points[0].co[1],
fqz.keyframe_points[0].co[1],
))
for i in range(len(fqw.keyframe_points) - 1):
last_quat = current_quat
current_quat = Quaternion((
fqw.keyframe_points[i + 1].co[1],
fqx.keyframe_points[i + 1].co[1],
fqy.keyframe_points[i + 1].co[1],
fqz.keyframe_points[i + 1].co[1],
))
if last_quat.dot(current_quat) < 0:
current_quat.negate()
fqw.keyframe_points[i +
1].co[1] = -fqw.keyframe_points[i +
1].co[1]
fqx.keyframe_points[i +
1].co[1] = -fqx.keyframe_points[i +
1].co[1]
fqy.keyframe_points[i +
1].co[1] = -fqy.keyframe_points[i +
1].co[1]
fqz.keyframe_points[i +
1].co[1] = -fqz.keyframe_points[i +
1].co[1]
def operation_negate(self, q):
qn = Quaternion(q)
qn.negate()
return qn
def operation_negate(self, q):
qn = Quaternion(q)
qn.negate()
return qn
def execute(self, context):
data = []
objId = 0
for ob in bpy.data.objects:
if (ob.physacq.is_actor):
print(ob.name)
o = {}
o['name'] = ob.name
o['objId'] = objId
o['shape'] = ob.physacq.shape
o['size'] = {
"x": ob.dimensions[0],
"y": ob.dimensions[1],
"z": ob.dimensions[2]
}
o['mass'] = ob.physacq.mass
log = {}
if not ob.animation_data:
continue
action = ob.animation_data.action
for fcu in action.fcurves:
#print( "fcu: ", fcu )
#print( "prop: ", fcu.data_path )
#print( "propId: ", fcu.array_index )
if fcu.data_path == 'location':
logKey = 'pos'
elif fcu.data_path == 'rotation_euler':
logKey = 'pose'
elif fcu.data_path == 'rotation_quaternion':
logKey = 'pose'
elif fcu.data_path == 'scale':
continue
else:
print("Can't interpret keyframe type, attention!!!",
fcu.data_path)
continue
if fcu.array_index == 0:
subKey = 'x'
elif fcu.array_index == 1:
subKey = 'y'
elif fcu.array_index == 2:
subKey = 'z'
elif fcu.array_index == 3:
subKey = 'w'
else:
print("Unprepared!")
keyframe_points = fcu.keyframe_points
for entry in keyframe_points:
#print( entry.co )
#print( "key:", str(int(entry.co[0])) )
frameId = str(int(entry.co[0]))
if frameId not in log:
log[frameId] = {}
if logKey not in log[frameId]:
log[frameId][logKey] = {}
log[frameId][logKey][subKey] = entry.co[1]
prevKey = None
prevQ = None
for key, frame in log.items():
if 'pos' in log[key]:
pos = Vector(
coordinatesUtil.jsonVector3ToTuple(
log[key]['pos']))
log[key]['pos'] = coordinatesUtil.vector3ToJson(
self.coordChangeM * pos)
if 'pose' not in log[key]:
continue
#print( 'ob.rotation_mode:', ob.rotation_mode)
if ob.rotation_mode == 'XYZ':
v = Vector(
coordinatesUtil.jsonVector3ToTuple(
log[key]['pose']))
eul = Euler(v, ob.rotation_mode)
q = eul.to_quaternion()
elif ob.rotation_mode == 'QUATERNION':
entry = log[key]['pose']
print(entry)
q = Quaternion((
entry['x'], entry['y'], entry['z'],
entry['w'])) # yes, array_index==3 was parsed to w
if prevQ:
dotProd = q.dot(prevQ)
if dotProd < 0:
print("dot: ", dotProd)
#q.negate()
#print( "q: %s" % (q.__repr__()) )
#log[ key ] ['pose'] = { 'x' : q[1], 'y' : -q[3], 'z': q[2], 'w' : q[0] }
log[key]['pose'] = coordinatesUtil.quatToJson(
coordinatesUtil.quatFromBlender(q))
if prevKey:
#print( "check: ", log[prevKey]['pose'], "\n",log[key]['pose'] )
q2 = Quaternion(q)
q2.negate()
#print( "q:", q, "negative: ", q2 )
prevKey = key
prevQ = q
o['log'] = log
data.append(o)
objId += 1
if not len(data):
self.report({'WARNING'}, "No keyframes, not saving")
return {'FINISHED'}
fp = context.scene.physacq.savePath
if len(bpy.path.basename(fp)) == 0:
fp = "//cuboids.json"
if fp.find("//") >= 0:
fp = bpy.path.abspath(fp)
self.report({'INFO'}, "Saving poses to %s" % (fp))
f = open(fp, 'w')
json.dump(data, f)
f.close()
return {'FINISHED'}
fqz = action.fcurves.find('rotation_quaternion', index = 3)
# invert quaternion so that interpolation takes the shortest path
if fqw is not None and fqw.keyframe_points is not None and len(fqw.keyframe_points) > 0:
endQuat = Quaternion(
(
fqw.keyframe_points[0].co[1],
fqx.keyframe_points[0].co[1],
fqy.keyframe_points[0].co[1],
fqz.keyframe_points[0].co[1]
)
)
for i in range(len(fqw.keyframe_points)-1):
startQuat = endQuat
endQuat = Quaternion(
(
fqw.keyframe_points[i+1].co[1],
fqx.keyframe_points[i+1].co[1],
fqy.keyframe_points[i+1].co[1],
fqz.keyframe_points[i+1].co[1]
)
)
if startQuat.dot(endQuat) < 0:
endQuat.negate()
fqw.keyframe_points[i+1].co[1] = -fqw.keyframe_points[i+1].co[1]
fqx.keyframe_points[i+1].co[1] = -fqx.keyframe_points[i+1].co[1]
fqy.keyframe_points[i+1].co[1] = -fqy.keyframe_points[i+1].co[1]
fqz.keyframe_points[i+1].co[1] = -fqz.keyframe_points[i+1].co[1]