2009-12-13 14:38:30 +00:00
|
|
|
# ##### BEGIN GPL LICENSE BLOCK #####
|
|
|
|
#
|
|
|
|
# This program is free software; you can redistribute it and/or
|
|
|
|
# modify it under the terms of the GNU General Public License
|
|
|
|
# as published by the Free Software Foundation; either version 2
|
|
|
|
# of the License, or (at your option) any later version.
|
|
|
|
#
|
|
|
|
# This program is distributed in the hope that it will be useful,
|
|
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
# GNU General Public License for more details.
|
|
|
|
#
|
|
|
|
# You should have received a copy of the GNU General Public License
|
|
|
|
# along with this program; if not, write to the Free Software Foundation,
|
2010-02-12 13:34:04 +00:00
|
|
|
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
2009-12-13 14:38:30 +00:00
|
|
|
#
|
|
|
|
# ##### END GPL LICENSE BLOCK #####
|
|
|
|
|
|
|
|
# <pep8 compliant>
|
|
|
|
|
2009-11-04 14:33:37 +00:00
|
|
|
import math
|
2010-02-20 22:51:36 +00:00
|
|
|
from math import radians
|
2009-11-04 14:33:37 +00:00
|
|
|
|
2009-11-04 14:31:14 +00:00
|
|
|
import bpy
|
2009-11-04 14:33:37 +00:00
|
|
|
import Mathutils
|
2010-02-20 22:51:36 +00:00
|
|
|
from Mathutils import Vector, Euler, Matrix, RotationMatrix, TranslationMatrix
|
2009-11-04 14:31:14 +00:00
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
|
2009-11-04 14:31:14 +00:00
|
|
|
class bvh_node_class(object):
|
2010-02-21 10:56:14 +00:00
|
|
|
__slots__ = (
|
2009-12-13 14:00:39 +00:00
|
|
|
'name',# bvh joint name
|
|
|
|
'parent',# bvh_node_class type or None for no parent
|
|
|
|
'children',# a list of children of this type.
|
|
|
|
'rest_head_world',# worldspace rest location for the head of this node
|
|
|
|
'rest_head_local',# localspace rest location for the head of this node
|
|
|
|
'rest_tail_world',# # worldspace rest location for the tail of this node
|
|
|
|
'rest_tail_local',# # worldspace rest location for the tail of this node
|
|
|
|
'channels',# list of 6 ints, -1 for an unused channel, otherwise an index for the BVH motion data lines, lock triple then rot triple
|
|
|
|
'rot_order',# a triple of indicies as to the order rotation is applied. [0,1,2] is x/y/z - [None, None, None] if no rotation.
|
|
|
|
'anim_data',# a list one tuple's one for each frame. (locx, locy, locz, rotx, roty, rotz)
|
|
|
|
'has_loc',# Conveinience function, bool, same as (channels[0]!=-1 or channels[1]!=-1 channels[2]!=-1)
|
|
|
|
'has_rot',# Conveinience function, bool, same as (channels[3]!=-1 or channels[4]!=-1 channels[5]!=-1)
|
|
|
|
'temp')# use this for whatever you want
|
|
|
|
|
|
|
|
def __init__(self, name, rest_head_world, rest_head_local, parent, channels, rot_order):
|
2009-12-16 13:27:30 +00:00
|
|
|
self.name = name
|
|
|
|
self.rest_head_world = rest_head_world
|
|
|
|
self.rest_head_local = rest_head_local
|
|
|
|
self.rest_tail_world = None
|
|
|
|
self.rest_tail_local = None
|
|
|
|
self.parent = parent
|
|
|
|
self.channels = channels
|
|
|
|
self.rot_order = rot_order
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
# convenience functions
|
2009-12-16 13:27:30 +00:00
|
|
|
self.has_loc = channels[0] != -1 or channels[1] != -1 or channels[2] != -1
|
|
|
|
self.has_rot = channels[3] != -1 or channels[4] != -1 or channels[5] != -1
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
|
2009-12-16 13:27:30 +00:00
|
|
|
self.children = []
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
# list of 6 length tuples: (lx,ly,lz, rx,ry,rz)
|
|
|
|
# even if the channels arnt used they will just be zero
|
|
|
|
#
|
2009-12-16 13:27:30 +00:00
|
|
|
self.anim_data = [(0, 0, 0, 0, 0, 0)]
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
def __repr__(self):
|
|
|
|
return 'BVH name:"%s", rest_loc:(%.3f,%.3f,%.3f), rest_tail:(%.3f,%.3f,%.3f)' %\
|
|
|
|
(self.name,\
|
|
|
|
self.rest_head_world.x, self.rest_head_world.y, self.rest_head_world.z,\
|
|
|
|
self.rest_head_world.x, self.rest_head_world.y, self.rest_head_world.z)
|
|
|
|
|
2009-11-04 14:31:14 +00:00
|
|
|
|
|
|
|
# Change the order rotation is applied.
|
2010-02-21 10:56:14 +00:00
|
|
|
MATRIX_IDENTITY_3x3 = Matrix([1, 0, 0], [0, 1, 0], [0, 0, 1])
|
|
|
|
MATRIX_IDENTITY_4x4 = Matrix([1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1])
|
2009-11-04 14:31:14 +00:00
|
|
|
|
2009-12-13 14:00:39 +00:00
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
def eulerRotate(x, y, z, rot_order):
|
|
|
|
# Clamp all values between 0 and 360, values outside this raise an error.
|
|
|
|
mats = [RotationMatrix(x, 3, 'X'), RotationMatrix(y, 3, 'Y'), RotationMatrix(z, 3, 'Z')]
|
|
|
|
return (MATRIX_IDENTITY_3x3 * mats[rot_order[0]] * (mats[rot_order[1]] * (mats[rot_order[2]]))).to_euler()
|
2009-12-13 14:00:39 +00:00
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
# Should work but doesnt!
|
|
|
|
'''
|
|
|
|
eul = Euler(x,y,z)
|
|
|
|
eul.order = "XYZ"[rot_order[0]] + "XYZ"[rot_order[1]] + "XYZ"[rot_order[2]]
|
|
|
|
return tuple(eul.to_matrix().to_euler())
|
|
|
|
'''
|
2009-12-13 14:00:39 +00:00
|
|
|
|
2009-11-04 14:31:14 +00:00
|
|
|
|
2010-02-20 22:51:36 +00:00
|
|
|
def read_bvh(context, file_path, ROT_MODE='XYZ', GLOBAL_SCALE=1.0):
|
2009-12-13 14:00:39 +00:00
|
|
|
# File loading stuff
|
|
|
|
# Open the file for importing
|
|
|
|
file = open(file_path, 'rU')
|
|
|
|
|
|
|
|
# Seperate into a list of lists, each line a list of words.
|
|
|
|
file_lines = file.readlines()
|
|
|
|
# Non standard carrage returns?
|
|
|
|
if len(file_lines) == 1:
|
|
|
|
file_lines = file_lines[0].split('\r')
|
|
|
|
|
|
|
|
# Split by whitespace.
|
2010-02-21 10:56:14 +00:00
|
|
|
file_lines = [ll for ll in [l.split() for l in file_lines] if ll]
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
|
|
|
|
# Create Hirachy as empties
|
|
|
|
|
|
|
|
if file_lines[0][0].lower() == 'hierarchy':
|
|
|
|
#print 'Importing the BVH Hierarchy for:', file_path
|
|
|
|
pass
|
|
|
|
else:
|
|
|
|
raise 'ERROR: This is not a BVH file'
|
|
|
|
|
2009-12-16 13:27:30 +00:00
|
|
|
bvh_nodes = {None: None}
|
2009-12-13 14:00:39 +00:00
|
|
|
bvh_nodes_serial = [None]
|
|
|
|
|
|
|
|
channelIndex = -1
|
|
|
|
|
|
|
|
|
|
|
|
lineIdx = 0 # An index for the file.
|
|
|
|
while lineIdx < len(file_lines) -1:
|
|
|
|
#...
|
|
|
|
if file_lines[lineIdx][0].lower() == 'root' or file_lines[lineIdx][0].lower() == 'joint':
|
|
|
|
|
|
|
|
# Join spaces into 1 word with underscores joining it.
|
|
|
|
if len(file_lines[lineIdx]) > 2:
|
|
|
|
file_lines[lineIdx][1] = '_'.join(file_lines[lineIdx][1:])
|
|
|
|
file_lines[lineIdx] = file_lines[lineIdx][:2]
|
|
|
|
|
|
|
|
# MAY NEED TO SUPPORT MULTIPLE ROOT's HERE!!!, Still unsure weather multiple roots are possible.??
|
|
|
|
|
|
|
|
# Make sure the names are unique- Object names will match joint names exactly and both will be unique.
|
|
|
|
name = file_lines[lineIdx][1]
|
|
|
|
|
|
|
|
#print '%snode: %s, parent: %s' % (len(bvh_nodes_serial) * ' ', name, bvh_nodes_serial[-1])
|
|
|
|
|
|
|
|
lineIdx += 2 # Incriment to the next line (Offset)
|
2010-02-21 10:56:14 +00:00
|
|
|
rest_head_local = Vector(float(file_lines[lineIdx][1]), float(file_lines[lineIdx][2]), float(file_lines[lineIdx][3])) * GLOBAL_SCALE
|
2009-12-13 14:00:39 +00:00
|
|
|
lineIdx += 1 # Incriment to the next line (Channels)
|
|
|
|
|
|
|
|
# newChannel[Xposition, Yposition, Zposition, Xrotation, Yrotation, Zrotation]
|
|
|
|
# newChannel references indecies to the motiondata,
|
|
|
|
# if not assigned then -1 refers to the last value that will be added on loading at a value of zero, this is appended
|
|
|
|
# We'll add a zero value onto the end of the MotionDATA so this is always refers to a value.
|
|
|
|
my_channel = [-1, -1, -1, -1, -1, -1]
|
2009-12-16 13:27:30 +00:00
|
|
|
my_rot_order = [None, None, None]
|
|
|
|
rot_count = 0
|
2009-12-13 14:00:39 +00:00
|
|
|
for channel in file_lines[lineIdx][2:]:
|
2009-12-16 13:27:30 +00:00
|
|
|
channel = channel.lower()
|
2009-12-13 14:00:39 +00:00
|
|
|
channelIndex += 1 # So the index points to the right channel
|
2010-02-21 10:56:14 +00:00
|
|
|
if channel == 'xposition':
|
|
|
|
my_channel[0] = channelIndex
|
|
|
|
elif channel == 'yposition':
|
|
|
|
my_channel[1] = channelIndex
|
|
|
|
elif channel == 'zposition':
|
|
|
|
my_channel[2] = channelIndex
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
elif channel == 'xrotation':
|
|
|
|
my_channel[3] = channelIndex
|
2009-12-16 13:27:30 +00:00
|
|
|
my_rot_order[rot_count] = 0
|
|
|
|
rot_count += 1
|
2009-12-13 14:00:39 +00:00
|
|
|
elif channel == 'yrotation':
|
|
|
|
my_channel[4] = channelIndex
|
2009-12-16 13:27:30 +00:00
|
|
|
my_rot_order[rot_count] = 1
|
|
|
|
rot_count += 1
|
2009-12-13 14:00:39 +00:00
|
|
|
elif channel == 'zrotation':
|
|
|
|
my_channel[5] = channelIndex
|
2009-12-16 13:27:30 +00:00
|
|
|
my_rot_order[rot_count] = 2
|
|
|
|
rot_count += 1
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
channels = file_lines[lineIdx][2:]
|
|
|
|
|
2009-12-16 13:27:30 +00:00
|
|
|
my_parent = bvh_nodes_serial[-1] # account for none
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
|
|
|
|
# Apply the parents offset accumletivly
|
2010-02-21 10:56:14 +00:00
|
|
|
if my_parent == None:
|
2009-12-16 13:27:30 +00:00
|
|
|
rest_head_world = Vector(rest_head_local)
|
2009-12-13 14:00:39 +00:00
|
|
|
else:
|
2009-12-16 13:27:30 +00:00
|
|
|
rest_head_world = my_parent.rest_head_world + rest_head_local
|
2009-12-13 14:00:39 +00:00
|
|
|
|
2009-12-16 13:27:30 +00:00
|
|
|
bvh_node = bvh_nodes[name] = bvh_node_class(name, rest_head_world, rest_head_local, my_parent, my_channel, my_rot_order)
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
# If we have another child then we can call ourselves a parent, else
|
|
|
|
bvh_nodes_serial.append(bvh_node)
|
|
|
|
|
|
|
|
# Account for an end node
|
|
|
|
if file_lines[lineIdx][0].lower() == 'end' and file_lines[lineIdx][1].lower() == 'site': # There is somtimes a name after 'End Site' but we will ignore it.
|
|
|
|
lineIdx += 2 # Incriment to the next line (Offset)
|
2010-02-21 10:30:39 +00:00
|
|
|
rest_tail = Vector(float(file_lines[lineIdx][1]), float(file_lines[lineIdx][2]), float(file_lines[lineIdx][3])) * GLOBAL_SCALE
|
2009-12-13 14:00:39 +00:00
|
|
|
|
2009-12-16 13:27:30 +00:00
|
|
|
bvh_nodes_serial[-1].rest_tail_world = bvh_nodes_serial[-1].rest_head_world + rest_tail
|
2010-02-21 09:43:09 +00:00
|
|
|
bvh_nodes_serial[-1].rest_tail_local = bvh_nodes_serial[-1].rest_head_local + rest_tail
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
|
|
|
|
# Just so we can remove the Parents in a uniform way- End end never has kids
|
|
|
|
# so this is a placeholder
|
|
|
|
bvh_nodes_serial.append(None)
|
|
|
|
|
|
|
|
if len(file_lines[lineIdx]) == 1 and file_lines[lineIdx][0] == '}': # == ['}']
|
|
|
|
bvh_nodes_serial.pop() # Remove the last item
|
|
|
|
|
|
|
|
if len(file_lines[lineIdx]) == 1 and file_lines[lineIdx][0].lower() == 'motion':
|
|
|
|
#print '\nImporting motion data'
|
|
|
|
lineIdx += 3 # Set the cursor to the first frame
|
|
|
|
break
|
|
|
|
|
|
|
|
lineIdx += 1
|
|
|
|
|
|
|
|
|
|
|
|
# Remove the None value used for easy parent reference
|
|
|
|
del bvh_nodes[None]
|
|
|
|
# Dont use anymore
|
|
|
|
del bvh_nodes_serial
|
|
|
|
|
2009-12-16 13:27:30 +00:00
|
|
|
bvh_nodes_list = bvh_nodes.values()
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
while lineIdx < len(file_lines):
|
2009-12-16 13:27:30 +00:00
|
|
|
line = file_lines[lineIdx]
|
2009-12-13 14:00:39 +00:00
|
|
|
for bvh_node in bvh_nodes_list:
|
|
|
|
#for bvh_node in bvh_nodes_serial:
|
2009-12-16 13:27:30 +00:00
|
|
|
lx = ly = lz = rx = ry = rz = 0.0
|
|
|
|
channels = bvh_node.channels
|
|
|
|
anim_data = bvh_node.anim_data
|
2009-12-13 14:00:39 +00:00
|
|
|
if channels[0] != -1:
|
2009-12-16 13:27:30 +00:00
|
|
|
lx = GLOBAL_SCALE * float(line[channels[0]])
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
if channels[1] != -1:
|
2009-12-16 13:27:30 +00:00
|
|
|
ly = GLOBAL_SCALE * float(line[channels[1]])
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
if channels[2] != -1:
|
2009-12-16 13:27:30 +00:00
|
|
|
lz = GLOBAL_SCALE * float(line[channels[2]])
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
if channels[3] != -1 or channels[4] != -1 or channels[5] != -1:
|
2009-12-16 13:27:30 +00:00
|
|
|
rx, ry, rz = float(line[channels[3]]), float(line[channels[4]]), float(line[channels[5]])
|
2009-12-13 14:00:39 +00:00
|
|
|
|
2010-02-20 22:51:36 +00:00
|
|
|
if ROT_MODE != 'NATIVE':
|
2010-02-21 10:30:39 +00:00
|
|
|
rx, ry, rz = eulerRotate(radians(rx), radians(ry), radians(rz), bvh_node.rot_order)
|
|
|
|
else:
|
|
|
|
rx, ry, rz = radians(rx), radians(ry), radians(rz)
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
# Done importing motion data #
|
2010-02-21 10:30:39 +00:00
|
|
|
anim_data.append((lx, ly, lz, rx, ry, rz))
|
2009-12-13 14:00:39 +00:00
|
|
|
lineIdx += 1
|
|
|
|
|
|
|
|
# Assign children
|
|
|
|
for bvh_node in bvh_nodes.values():
|
2009-12-16 13:27:30 +00:00
|
|
|
bvh_node_parent = bvh_node.parent
|
2009-12-13 14:00:39 +00:00
|
|
|
if bvh_node_parent:
|
|
|
|
bvh_node_parent.children.append(bvh_node)
|
|
|
|
|
|
|
|
# Now set the tip of each bvh_node
|
|
|
|
for bvh_node in bvh_nodes.values():
|
|
|
|
|
|
|
|
if not bvh_node.rest_tail_world:
|
2010-02-21 10:56:14 +00:00
|
|
|
if len(bvh_node.children) == 0:
|
2009-12-13 14:00:39 +00:00
|
|
|
# could just fail here, but rare BVH files have childless nodes
|
|
|
|
bvh_node.rest_tail_world = Vector(bvh_node.rest_head_world)
|
|
|
|
bvh_node.rest_tail_local = Vector(bvh_node.rest_head_local)
|
2010-02-21 10:30:39 +00:00
|
|
|
elif len(bvh_node.children) == 1:
|
2009-12-16 13:27:30 +00:00
|
|
|
bvh_node.rest_tail_world = Vector(bvh_node.children[0].rest_head_world)
|
2010-02-21 09:43:09 +00:00
|
|
|
bvh_node.rest_tail_local = bvh_node.rest_head_local + bvh_node.children[0].rest_head_local
|
2009-12-13 14:00:39 +00:00
|
|
|
else:
|
|
|
|
# allow this, see above
|
|
|
|
#if not bvh_node.children:
|
|
|
|
# raise 'error, bvh node has no end and no children. bad file'
|
|
|
|
|
|
|
|
# Removed temp for now
|
2010-02-21 10:30:39 +00:00
|
|
|
rest_tail_world = Vector(0.0, 0.0, 0.0)
|
|
|
|
rest_tail_local = Vector(0.0, 0.0, 0.0)
|
2009-12-13 14:00:39 +00:00
|
|
|
for bvh_node_child in bvh_node.children:
|
|
|
|
rest_tail_world += bvh_node_child.rest_head_world
|
|
|
|
rest_tail_local += bvh_node_child.rest_head_local
|
|
|
|
|
2009-12-16 13:27:30 +00:00
|
|
|
bvh_node.rest_tail_world = rest_tail_world * (1.0 / len(bvh_node.children))
|
|
|
|
bvh_node.rest_tail_local = rest_tail_local * (1.0 / len(bvh_node.children))
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
# Make sure tail isnt the same location as the head.
|
2010-02-21 10:56:14 +00:00
|
|
|
if (bvh_node.rest_tail_local - bvh_node.rest_head_local).length <= 0.001 * GLOBAL_SCALE:
|
|
|
|
bvh_node.rest_tail_local.y = bvh_node.rest_tail_local.y + GLOBAL_SCALE / 10
|
|
|
|
bvh_node.rest_tail_world.y = bvh_node.rest_tail_world.y + GLOBAL_SCALE / 10
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
return bvh_nodes
|
2009-11-04 14:31:14 +00:00
|
|
|
|
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
def bvh_node_dict2objects(context, bvh_nodes, IMPORT_START_FRAME=1, IMPORT_LOOP=False):
|
2009-11-04 14:31:14 +00:00
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
if IMPORT_START_FRAME < 1:
|
|
|
|
IMPORT_START_FRAME = 1
|
2009-12-13 14:00:39 +00:00
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
scn = context.scene
|
2009-12-13 14:00:39 +00:00
|
|
|
scn.objects.selected = []
|
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
objects = []
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
def add_ob(name):
|
2010-02-22 00:07:46 +00:00
|
|
|
ob = scn.objects.new('Empty', None)
|
2009-12-13 14:00:39 +00:00
|
|
|
objects.append(ob)
|
|
|
|
return ob
|
|
|
|
|
|
|
|
# Add objects
|
|
|
|
for name, bvh_node in bvh_nodes.items():
|
2010-02-21 10:56:14 +00:00
|
|
|
bvh_node.temp = add_ob(name)
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
# Parent the objects
|
|
|
|
for bvh_node in bvh_nodes.values():
|
2010-02-21 10:56:14 +00:00
|
|
|
bvh_node.temp.makeParent([bvh_node_child.temp for bvh_node_child in bvh_node.children], 1, 0) # ojbs, noninverse, 1 = not fast.
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
# Offset
|
|
|
|
for bvh_node in bvh_nodes.values():
|
|
|
|
# Make relative to parents offset
|
2010-02-21 10:56:14 +00:00
|
|
|
bvh_node.temp.loc = bvh_node.rest_head_local
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
# Add tail objects
|
|
|
|
for name, bvh_node in bvh_nodes.items():
|
|
|
|
if not bvh_node.children:
|
2010-02-21 10:56:14 +00:00
|
|
|
ob_end = add_ob(name + '_end')
|
2009-12-13 14:00:39 +00:00
|
|
|
bvh_node.temp.makeParent([ob_end], 1, 0) # ojbs, noninverse, 1 = not fast.
|
2010-02-21 10:56:14 +00:00
|
|
|
ob_end.loc = bvh_node.rest_tail_local
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
|
|
|
|
# Animate the data, the last used bvh_node will do since they all have the same number of frames
|
|
|
|
for current_frame in range(len(bvh_node.anim_data)):
|
2010-02-21 10:30:39 +00:00
|
|
|
Blender.Set('curframe', current_frame + IMPORT_START_FRAME)
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
for bvh_node in bvh_nodes.values():
|
2010-02-21 10:30:39 +00:00
|
|
|
lx, ly, lz, rx, ry, rz = bvh_node.anim_data[current_frame]
|
2009-12-13 14:00:39 +00:00
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
rest_head_local = bvh_node.rest_head_local
|
|
|
|
bvh_node.temp.loc = rest_head_local + Vector(lx, ly, lz)
|
2009-12-13 14:00:39 +00:00
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
bvh_node.temp.rot = rx, ry, rz
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
bvh_node.temp.insertIpoKey(Blender.Object.IpoKeyTypes.LOCROT) # XXX invalid
|
|
|
|
|
|
|
|
scn.update(1)
|
|
|
|
return objects
|
2009-11-04 14:31:14 +00:00
|
|
|
|
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
def bvh_node_dict2armature(context, bvh_nodes, ROT_MODE='XYZ', IMPORT_START_FRAME=1, IMPORT_LOOP=False):
|
2009-11-04 14:31:14 +00:00
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
if IMPORT_START_FRAME < 1:
|
|
|
|
IMPORT_START_FRAME = 1
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
# Add the new armature,
|
|
|
|
scn = context.scene
|
2009-11-04 14:33:37 +00:00
|
|
|
#XXX scn.objects.selected = []
|
2009-12-13 14:00:39 +00:00
|
|
|
for ob in scn.objects:
|
|
|
|
ob.selected = False
|
|
|
|
|
2010-02-20 22:51:36 +00:00
|
|
|
scn.set_frame(IMPORT_START_FRAME)
|
2009-12-13 14:00:39 +00:00
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
arm_data = bpy.data.armatures.new("MyBVH")
|
2010-02-22 00:07:46 +00:00
|
|
|
arm_ob = bpy.data.objects.new("MyBVH", arm_data)
|
2010-02-21 10:56:14 +00:00
|
|
|
|
2010-02-20 22:51:36 +00:00
|
|
|
scn.objects.link(arm_ob)
|
2009-11-04 14:33:37 +00:00
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
arm_ob.selected = True
|
|
|
|
scn.objects.active = arm_ob
|
2009-12-13 14:00:39 +00:00
|
|
|
print(scn.objects.active)
|
|
|
|
|
|
|
|
bpy.ops.object.mode_set(mode='OBJECT', toggle=False)
|
|
|
|
bpy.ops.object.mode_set(mode='EDIT', toggle=False)
|
|
|
|
|
|
|
|
|
|
|
|
# Get the average bone length for zero length bones, we may not use this.
|
2010-02-21 10:56:14 +00:00
|
|
|
average_bone_length = 0.0
|
|
|
|
nonzero_count = 0
|
2009-12-13 14:00:39 +00:00
|
|
|
for bvh_node in bvh_nodes.values():
|
2010-02-21 10:56:14 +00:00
|
|
|
l = (bvh_node.rest_head_local - bvh_node.rest_tail_local).length
|
2009-12-13 14:00:39 +00:00
|
|
|
if l:
|
2010-02-21 10:56:14 +00:00
|
|
|
average_bone_length += l
|
|
|
|
nonzero_count += 1
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
# Very rare cases all bones couldbe zero length???
|
|
|
|
if not average_bone_length:
|
|
|
|
average_bone_length = 0.1
|
|
|
|
else:
|
|
|
|
# Normal operation
|
2010-02-21 10:56:14 +00:00
|
|
|
average_bone_length = average_bone_length / nonzero_count
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
|
2009-11-04 14:33:37 +00:00
|
|
|
#XXX - sloppy operator code
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
bpy.ops.armature.delete()
|
|
|
|
bpy.ops.armature.select_all()
|
|
|
|
bpy.ops.armature.delete()
|
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
ZERO_AREA_BONES = []
|
2009-12-13 14:00:39 +00:00
|
|
|
for name, bvh_node in bvh_nodes.items():
|
|
|
|
# New editbone
|
|
|
|
bpy.ops.armature.bone_primitive_add(name="Bone")
|
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
bone = bvh_node.temp = arm_data.edit_bones[-1]
|
2009-11-04 14:33:37 +00:00
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
bone.name = name
|
2009-11-04 14:33:37 +00:00
|
|
|
# arm_data.bones[name]= bone
|
2009-12-13 14:00:39 +00:00
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
bone.head = bvh_node.rest_head_world
|
|
|
|
bone.tail = bvh_node.rest_tail_world
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
# ZERO AREA BONES.
|
2010-02-21 10:56:14 +00:00
|
|
|
if (bone.head - bone.tail).length < 0.001:
|
2009-12-13 14:00:39 +00:00
|
|
|
if bvh_node.parent:
|
2010-02-21 10:56:14 +00:00
|
|
|
ofs = bvh_node.parent.rest_head_local - bvh_node.parent.rest_tail_local
|
2009-12-13 14:00:39 +00:00
|
|
|
if ofs.length: # is our parent zero length also?? unlikely
|
2010-02-21 10:56:14 +00:00
|
|
|
bone.tail = bone.tail + ofs
|
2009-12-13 14:00:39 +00:00
|
|
|
else:
|
2010-02-21 10:56:14 +00:00
|
|
|
bone.tail.y = bone.tail.y + average_bone_length
|
2009-12-13 14:00:39 +00:00
|
|
|
else:
|
2010-02-21 10:56:14 +00:00
|
|
|
bone.tail.y = bone.tail.y + average_bone_length
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
ZERO_AREA_BONES.append(bone.name)
|
|
|
|
|
|
|
|
|
|
|
|
for bvh_node in bvh_nodes.values():
|
|
|
|
if bvh_node.parent:
|
|
|
|
# bvh_node.temp is the Editbone
|
|
|
|
|
|
|
|
# Set the bone parent
|
2010-02-21 10:56:14 +00:00
|
|
|
bvh_node.temp.parent = bvh_node.parent.temp
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
# Set the connection state
|
|
|
|
if not bvh_node.has_loc and\
|
|
|
|
bvh_node.parent and\
|
|
|
|
bvh_node.parent.temp.name not in ZERO_AREA_BONES and\
|
|
|
|
bvh_node.parent.rest_tail_local == bvh_node.rest_head_local:
|
2010-02-21 10:56:14 +00:00
|
|
|
bvh_node.temp.connected = True
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
# Replace the editbone with the editbone name,
|
|
|
|
# to avoid memory errors accessing the editbone outside editmode
|
|
|
|
for bvh_node in bvh_nodes.values():
|
2010-02-21 10:56:14 +00:00
|
|
|
bvh_node.temp = bvh_node.temp.name
|
2009-12-13 14:00:39 +00:00
|
|
|
|
2009-11-04 14:33:37 +00:00
|
|
|
#XXX arm_data.update()
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
# Now Apply the animation to the armature
|
|
|
|
|
|
|
|
# Get armature animation data
|
|
|
|
bpy.ops.object.mode_set(mode='OBJECT', toggle=False)
|
|
|
|
bpy.ops.object.mode_set(mode='POSE', toggle=False)
|
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
pose = arm_ob.pose
|
|
|
|
pose_bones = pose.bones
|
2009-12-13 14:00:39 +00:00
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
if ROT_MODE == 'NATIVE':
|
2009-12-13 14:00:39 +00:00
|
|
|
eul_order_lookup = {\
|
2010-02-21 10:56:14 +00:00
|
|
|
(0, 1, 2): 'XYZ',
|
|
|
|
(0, 2, 1): 'XZY',
|
|
|
|
(1, 0, 2): 'YXZ',
|
|
|
|
(1, 2, 0): 'YZX',
|
|
|
|
(2, 0, 1): 'ZXY',
|
|
|
|
(2, 1, 0): 'ZYX'}
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
for bvh_node in bvh_nodes.values():
|
2010-02-21 10:56:14 +00:00
|
|
|
bone_name = bvh_node.temp # may not be the same name as the bvh_node, could have been shortened.
|
|
|
|
pose_bone = pose_bones[bone_name]
|
2010-02-21 10:30:39 +00:00
|
|
|
pose_bone.rotation_mode = eul_order_lookup[tuple(bvh_node.rot_order)]
|
2009-12-13 14:00:39 +00:00
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
elif ROT_MODE == 'XYZ':
|
2010-02-20 22:51:36 +00:00
|
|
|
print(2)
|
2009-12-13 14:00:39 +00:00
|
|
|
for pose_bone in pose_bones:
|
2010-02-20 22:51:36 +00:00
|
|
|
pose_bone.rotation_mode = 'XYZ'
|
2009-12-13 14:00:39 +00:00
|
|
|
else:
|
|
|
|
# Quats default
|
2010-02-20 22:51:36 +00:00
|
|
|
print(3)
|
2009-12-13 14:00:39 +00:00
|
|
|
pass
|
2010-02-21 10:56:14 +00:00
|
|
|
|
2010-02-20 22:51:36 +00:00
|
|
|
context.scene.update()
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
bpy.ops.pose.select_all() # set
|
|
|
|
bpy.ops.anim.keyframe_insert_menu(type=-4) # XXX - -4 ???
|
|
|
|
|
|
|
|
|
|
|
|
#XXX action = Blender.Armature.NLA.NewAction("Action")
|
2009-11-04 14:33:37 +00:00
|
|
|
#XXX action.setActive(arm_ob)
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
#bpy.ops.action.new()
|
|
|
|
#action = bpy.data.actions[-1]
|
|
|
|
|
|
|
|
# arm_ob.animation_data.action = action
|
|
|
|
action = arm_ob.animation_data.action
|
|
|
|
|
|
|
|
# Replace the bvh_node.temp (currently an editbone)
|
|
|
|
# With a tuple (pose_bone, armature_bone, bone_rest_matrix, bone_rest_matrix_inv)
|
|
|
|
for bvh_node in bvh_nodes.values():
|
2010-02-21 10:56:14 +00:00
|
|
|
bone_name = bvh_node.temp # may not be the same name as the bvh_node, could have been shortened.
|
|
|
|
pose_bone = pose_bones[bone_name]
|
|
|
|
rest_bone = arm_data.bones[bone_name]
|
2010-02-20 22:51:36 +00:00
|
|
|
bone_rest_matrix = rest_bone.matrix_local.rotation_part()
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
bone_rest_matrix_inv = Matrix(bone_rest_matrix)
|
2009-12-13 14:00:39 +00:00
|
|
|
bone_rest_matrix_inv.invert()
|
|
|
|
|
|
|
|
bone_rest_matrix_inv.resize4x4()
|
|
|
|
bone_rest_matrix.resize4x4()
|
2010-02-21 10:56:14 +00:00
|
|
|
bvh_node.temp = (pose_bone, bone, bone_rest_matrix, bone_rest_matrix_inv)
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
|
|
|
|
# Make a dict for fast access without rebuilding a list all the time.
|
|
|
|
|
|
|
|
# KEYFRAME METHOD, SLOW, USE IPOS DIRECT
|
|
|
|
# TODO: use f-point samples instead (Aligorith)
|
|
|
|
|
2010-02-21 10:30:39 +00:00
|
|
|
if ROT_MODE != 'QUATERNION':
|
|
|
|
prev_euler = [Euler() for i in range(len(bvh_nodes))]
|
|
|
|
|
2009-12-13 14:00:39 +00:00
|
|
|
# Animate the data, the last used bvh_node will do since they all have the same number of frames
|
|
|
|
for current_frame in range(len(bvh_node.anim_data)-1): # skip the first frame (rest frame)
|
|
|
|
# print current_frame
|
|
|
|
|
2010-02-20 22:51:36 +00:00
|
|
|
# if current_frame==40: # debugging
|
|
|
|
# break
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
# Dont neet to set the current frame
|
2010-02-21 10:30:39 +00:00
|
|
|
for i, bvh_node in enumerate(bvh_nodes.values()):
|
2010-02-21 10:56:14 +00:00
|
|
|
pose_bone, bone, bone_rest_matrix, bone_rest_matrix_inv = bvh_node.temp
|
2010-02-21 10:30:39 +00:00
|
|
|
lx, ly, lz, rx, ry, rz = bvh_node.anim_data[current_frame + 1]
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
if bvh_node.has_rot:
|
2010-02-21 10:30:39 +00:00
|
|
|
bone_rotation_matrix = Euler(rx, ry, rz).to_matrix().resize4x4()
|
|
|
|
bone_rotation_matrix = bone_rest_matrix_inv * bone_rotation_matrix * bone_rest_matrix
|
|
|
|
|
|
|
|
if ROT_MODE == 'QUATERNION':
|
|
|
|
pose_bone.rotation_quaternion = bone_rotation_matrix.to_quat()
|
2009-12-13 14:00:39 +00:00
|
|
|
else:
|
2010-02-21 10:30:39 +00:00
|
|
|
euler = bone_rotation_matrix.to_euler('XYZ', prev_euler[i]) # pose_bone.rotation_mode # TODO, XYZ default for now
|
|
|
|
pose_bone.rotation_euler = euler
|
|
|
|
prev_euler[i] = euler
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
if bvh_node.has_loc:
|
2010-02-21 10:56:14 +00:00
|
|
|
pose_bone.location = (bone_rest_matrix_inv * TranslationMatrix(Vector(lx, ly, lz) - bvh_node.rest_head_local)).translation_part()
|
2009-12-13 14:00:39 +00:00
|
|
|
|
2010-02-20 22:51:36 +00:00
|
|
|
if bvh_node.has_loc:
|
|
|
|
pose_bone.keyframe_insert("location")
|
|
|
|
if bvh_node.has_rot:
|
|
|
|
if ROT_MODE == 'QUATERNION':
|
|
|
|
pose_bone.keyframe_insert("rotation_quaternion")
|
|
|
|
else:
|
|
|
|
pose_bone.keyframe_insert("rotation_euler")
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
|
|
|
|
# bpy.ops.anim.keyframe_insert_menu(type=-4) # XXX - -4 ???
|
|
|
|
bpy.ops.screen.frame_offset(delta=1)
|
|
|
|
|
2010-02-21 10:30:39 +00:00
|
|
|
for cu in action.fcurves:
|
|
|
|
if IMPORT_LOOP:
|
|
|
|
pass # 2.5 doenst have cyclic now?
|
2010-02-21 10:56:14 +00:00
|
|
|
|
2010-02-21 10:30:39 +00:00
|
|
|
for bez in cu.keyframe_points:
|
|
|
|
bez.interpolation = 'LINEAR'
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
return arm_ob
|
2009-11-04 14:31:14 +00:00
|
|
|
|
|
|
|
|
2009-11-04 14:33:37 +00:00
|
|
|
from bpy.props import *
|
|
|
|
|
2009-12-16 13:27:30 +00:00
|
|
|
|
2009-11-04 14:33:37 +00:00
|
|
|
class BvhImporter(bpy.types.Operator):
|
2010-02-15 09:53:02 +00:00
|
|
|
'''Load a OBJ Motion Capture File'''
|
2009-12-13 14:00:39 +00:00
|
|
|
bl_idname = "import_anim.bvh"
|
|
|
|
bl_label = "Import BVH"
|
|
|
|
|
2009-12-16 13:27:30 +00:00
|
|
|
path = StringProperty(name="File Path", description="File path used for importing the OBJ file", maxlen=1024, default="")
|
2010-02-20 22:51:36 +00:00
|
|
|
scale = FloatProperty(name="Scale", description="Scale the BVH by this value", min=0.0001, max=1000000.0, soft_min=0.001, soft_max=100.0, default=0.1)
|
|
|
|
start_frame = IntProperty(name="Start Frame", description="Starting frame for the animation", default=1)
|
|
|
|
loop = BoolProperty(name="Loop", description="Loop the animation playback", default=False)
|
|
|
|
rotate_mode = EnumProperty(items=(
|
|
|
|
('QUATERNION', "Quaternion", "Convert rotations to quaternions"),
|
|
|
|
# ('NATIVE', "Euler (Native)", "Use the rotation order defined in the BVH file"),
|
|
|
|
('XYZ', "Euler (XYZ)", "Convert rotations to euler XYZ"),
|
|
|
|
# ('XZY', "Euler (XZY)", "Convert rotations to euler XZY"),
|
|
|
|
# ('YXZ', "Euler (YXZ)", "Convert rotations to euler YXZ"),
|
|
|
|
# ('YZX', "Euler (YZX)", "Convert rotations to euler YZX"),
|
|
|
|
# ('ZXY', "Euler (ZXY)", "Convert rotations to euler ZXY"),
|
|
|
|
# ('ZYX', "Euler (ZYX)", "Convert rotations to euler ZYX")),
|
|
|
|
),
|
|
|
|
name="Rotation",
|
|
|
|
description="Rotation conversion.",
|
|
|
|
default='QUATERNION')
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
def execute(self, context):
|
|
|
|
# print("Selected: " + context.active_object.name)
|
2010-02-20 22:51:36 +00:00
|
|
|
import time
|
|
|
|
t1 = time.time()
|
|
|
|
print('\tparsing bvh...', end="")
|
2010-02-21 10:56:14 +00:00
|
|
|
|
2010-02-20 22:51:36 +00:00
|
|
|
bvh_nodes = read_bvh(context, self.properties.path,
|
|
|
|
ROT_MODE=self.properties.rotate_mode,
|
|
|
|
GLOBAL_SCALE=self.properties.scale)
|
|
|
|
|
|
|
|
print('%.4f' % (time.time() - t1))
|
|
|
|
t1 = time.time()
|
|
|
|
print('\timporting to blender...', end="")
|
2010-02-21 10:56:14 +00:00
|
|
|
|
2010-02-20 22:51:36 +00:00
|
|
|
bvh_node_dict2armature(context, bvh_nodes,
|
|
|
|
ROT_MODE=self.properties.rotate_mode,
|
|
|
|
IMPORT_START_FRAME=self.properties.start_frame,
|
|
|
|
IMPORT_LOOP=self.properties.loop)
|
2010-02-21 10:56:14 +00:00
|
|
|
|
2010-02-20 22:51:36 +00:00
|
|
|
print('Done in %.4f\n' % (time.time() - t1))
|
2009-12-24 19:50:43 +00:00
|
|
|
return {'FINISHED'}
|
2009-12-13 14:00:39 +00:00
|
|
|
|
|
|
|
def invoke(self, context, event):
|
|
|
|
wm = context.manager
|
|
|
|
wm.add_fileselect(self)
|
2009-12-24 21:17:14 +00:00
|
|
|
return {'RUNNING_MODAL'}
|
2009-11-04 14:33:37 +00:00
|
|
|
|
|
|
|
|
2010-02-15 09:53:02 +00:00
|
|
|
menu_func = lambda self, context: self.layout.operator(BvhImporter.bl_idname, text="Motion Capture (.bvh)")
|
2010-02-14 11:21:21 +00:00
|
|
|
|
2010-02-21 10:56:14 +00:00
|
|
|
|
2010-02-14 11:21:21 +00:00
|
|
|
def register():
|
|
|
|
bpy.types.register(BvhImporter)
|
2010-02-14 12:45:03 +00:00
|
|
|
bpy.types.INFO_MT_file_import.append(menu_func)
|
2010-02-21 10:56:14 +00:00
|
|
|
|
|
|
|
|
2010-02-14 11:21:21 +00:00
|
|
|
def unregister():
|
|
|
|
bpy.types.unregister(BvhImporter)
|
2010-02-14 12:45:03 +00:00
|
|
|
bpy.types.INFO_MT_file_import.remove(menu_func)
|
2010-02-16 09:55:07 +00:00
|
|
|
|
|
|
|
if __name__ == "__main__":
|
|
|
|
register()
|