859959b49c
- fixing bug reported by Paolo Colombo: space handler slinks set for a 3d view were not set when the area got maximized; - Blender.Object: added object.isSB() method to know if an object is a soft body (has ob->soft != NULL). Used in fixfromarmature.py. Scripts: - updates: batch_name_edit (Campbell), fixfromarmature (JMS); - additions: X3D exporter by Bart; Envelope Suite by Jonas Petersen; BVH 2 Armature by Jean-Baptiste Perin; Camera Changer by Regis Montoya (3R); Interactive Console by Campbell (ideasman). - tiny updates in other scripts.
525 lines
18 KiB
Python
525 lines
18 KiB
Python
#!BPY
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"""
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Name: 'Motion Capture (.bvh)...'
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Blender: 236
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Group: 'Import'
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Tip: 'Import a (.bvh) motion capture file'
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"""
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__author__ = "Campbell Barton"
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__url__ = ("blender", "elysiun", "http://jmsoler.free.fr/util/blenderfile/py/bvh_import.py")
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__version__ = "1.0.2 04/12/28"
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__bpydoc__ = """\
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This script imports BVH motion capture data to Blender.
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Supported: Poser 3.01<br>
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Missing:<br>
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Known issues:<br>
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Notes:<br>
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Jean-Michel Soler improved importer to support Poser 3.01 files;<br>
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Jean-Baptiste Perin wrote a script to create an armature out of the
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Empties created by this importer, it's in the Scripts window -> Scripts -> Animation menu.
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"""
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# $Id$
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#
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#===============================================#
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# BVH Import script 1.03 patched by Campbell #
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# Small optimizations and scale input #
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# 01/01/2005, #
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#===============================================#
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#===============================================#
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# BVH Import script 1.02 patched by Jm Soler #
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# to the Poser 3.01 bvh file #
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# 28/12/2004, #
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#===============================================#
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#===============================================#
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# BVH Import script 1.0 by Campbell Barton #
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# 25/03/2004, euler rotation code taken from #
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# Reevan Mckay's BVH import script v1.1 #
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# if you have any questions about this script #
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# email me ideasman@linuxmail.org #
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#===============================================#
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#===============================================#
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# TODO: #
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# * Create bones when importing #
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# * Make an IPO jitter removal script #
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# * Work out a better naming system #
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#===============================================#
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# --------------------------------------------------------------------------
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# BVH Import v0.9 by Campbell Barton (AKA Ideasman)
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# --------------------------------------------------------------------------
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# ***** BEGIN GPL LICENSE BLOCK *****
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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# ***** END GPL LICENCE BLOCK *****
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# --------------------------------------------------------------------------
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import string
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import math
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import Blender
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from Blender import Window, Object, Scene, Ipo, Draw
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from Blender.Scene import Render
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# # PSYCO IS CRASHING ON MY SYSTEM
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# # Attempt to load psyco, speed things up
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# try:
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# print 'using psyco to speed up BVH importing'
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# import psyco
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# psyco.full()
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#
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# except:
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# print 'psyco is not present on this system'
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# Default scale
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scale = 0.01
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# Update as we load?
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debug = 0
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# Get the current scene.
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scn = Scene.GetCurrent()
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context = scn.getRenderingContext()
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# Here we store the Ipo curves in the order they load.
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channelCurves = []
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# Object list
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# We need this so we can loop through the objects and edit there IPO's
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# Chenging there rotation to EULER rotation
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objectList = []
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def getScale():
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return Draw.PupFloatInput('BVH Scale: ', 0.01, 0.001, 10.0, 0.1, 3)
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def MAT(m):
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if len(m) == 3:
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return Blender.Mathutils.Matrix(m[0], m[1], m[2])
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elif len(m) == 4:
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return Blender.Mathutils.Matrix(m[0], m[1], m[2], m[3])
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#===============================================#
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# eulerRotation: converts X, Y, Z rotation #
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# to eular Rotation. This entire function #
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# is copied from Reevan Mckay's BVH script #
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#===============================================#
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# Vars used in eular rotation funtcion
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DEG_TO_RAD = math.pi/180.0
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RAD_TO_DEG = 180.0/math.pi
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PI=3.14159
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def eulerRotate(x,y,z):
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#=================================
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def RVMatMult3 (mat1,mat2):
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#=================================
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mat3=[[0.0,0.0,0.0],[0.0,0.0,0.0],[0.0,0.0,0.0]]
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for i in range(3):
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for k in range(3):
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for j in range(3):
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mat3[i][k]=mat3[i][k]+mat1[i][j]*mat2[j][k]
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return mat3
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#=================================
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def RVAxisAngleToMat3 (rot4):
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# Takes a direction vector and
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# a rotation (in rads) and
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# returns the rotation matrix.
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# Graphics Gems I p. 466:
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#=================================
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mat3=[[0.0,0.0,0.0],[0.0,0.0,0.0],[0.0,0.0,0.0]]
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if math.fabs(rot4[3])>0.01:
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s=math.sin(rot4[3])
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c=math.cos(rot4[3])
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t=1.0-math.cos(rot4[3])
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else:
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s=rot4[3]
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c=1.0
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t=0.0
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x=rot4[0]; y=rot4[1]; z=rot4[2]
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mat3[0][0]=t*x*x+c
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mat3[0][1]=t*x*y+s*z
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mat3[0][2]=t*x*z-s*y
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mat3[1][0]=t*x*y-s*z
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mat3[1][1]=t*y*y+c
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mat3[1][2]=t*y*z+s*x
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mat3[2][0]=t*x*z+s*y
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mat3[2][1]=t*y*z-s*x
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mat3[2][2]=t*z*z+c
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return mat3
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eul = [x,y,z]
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for jj in range(3):
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while eul[jj] < 0:
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eul[jj] = eul[jj] + 360.0
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while eul[jj] >= 360.0:
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eul[jj] = eul[jj] - 360.0
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eul[0] = eul[0]*DEG_TO_RAD
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eul[1] = eul[1]*DEG_TO_RAD
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eul[2] = eul[2]*DEG_TO_RAD
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xmat=RVAxisAngleToMat3([1,0,0,eul[0]])
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ymat=RVAxisAngleToMat3([0,1,0,eul[1]])
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zmat=RVAxisAngleToMat3([0,0,1,eul[2]])
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mat=[[1.0,0.0,0.0],[0.0,1.0,0.0],[0.0,0.0,1.0]]
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# Standard BVH multiplication order
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mat=RVMatMult3 (zmat,mat)
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mat=RVMatMult3 (xmat,mat)
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mat=RVMatMult3 (ymat,mat)
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'''
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# Screwy Animation Master BVH multiplcation order
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mat=RVMatMult3 (ymat,mat)
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mat=RVMatMult3 (xmat,mat)
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mat=RVMatMult3 (zmat,mat)
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'''
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mat = MAT(mat)
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eul = mat.toEuler()
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x =- eul[0]/-10
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y =- eul[1]/-10
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z =- eul[2]/-10
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return x, y, z # Returm euler roration values.
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#===============================================#
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# makeJoint: Here we use the node data #
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# from the BVA file to create an empty #
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#===============================================#
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def makeJoint(name, parent, prefix, offset, channels):
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global scale
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# Make Empty, with the prefix in front of the name
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ob = Object.New('Empty', prefix + name) # New object, ob is shorter and nicer to use.
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scn.link(ob) # place the object in the current scene
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# Offset Empty
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ob.setLocation(offset[0]*scale, offset[1]*scale, offset[2]*scale)
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# Make me a child of another empty.
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# Vale of None will make the empty a root node (no parent)
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if parent[-1] != None:
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obParent = Object.Get(prefix + parent[-1]) # We use this a bit so refrence it here.
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obParent.makeParent([ob], 0, 1) #ojbs, noninverse, 1 = not fast.
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# Add Ipo's for necessary channels
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newIpo = Ipo.New('Object', prefix + name)
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ob.setIpo(newIpo)
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for channelType in channels:
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if channelType == 'Xposition':
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newIpo.addCurve('LocX')
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newIpo.getCurve('LocX').setInterpolation('Linear')
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if channelType == 'Yposition':
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newIpo.addCurve('LocY')
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newIpo.getCurve('LocY').setInterpolation('Linear')
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if channelType == 'Zposition':
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newIpo.addCurve('LocZ')
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newIpo.getCurve('LocZ').setInterpolation('Linear')
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if channelType == 'Zrotation':
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newIpo.addCurve('RotZ')
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newIpo.getCurve('RotZ').setInterpolation('Linear')
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if channelType == 'Yrotation':
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newIpo.addCurve('RotY')
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newIpo.getCurve('RotY').setInterpolation('Linear')
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if channelType == 'Xrotation':
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newIpo.addCurve('RotX')
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newIpo.getCurve('RotX').setInterpolation('Linear')
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# Add to object list
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objectList.append(ob)
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# Redraw if debugging
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if debug: Blender.Redraw()
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#===============================================#
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# makeEnd: Here we make an end node #
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# This is needed when adding the last bone #
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#===============================================#
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def makeEnd(parent, prefix, offset):
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# Make Empty, with the prefix in front of the name, end nodes have no name so call it its parents name+'_end'
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ob = Object.New('Empty', prefix + parent[-1] + '_end') # New object, ob is shorter and nicer to use.
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scn.link(ob)
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# Dont check for a parent, an end node MUST have a parent
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obParent = Object.Get(prefix + parent[-1]) # We use this a bit so refrence it here.
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obParent.makeParent([ob], 0, 1) #ojbs, noninverse, 1 = not fast.
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# Offset Empty
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ob.setLocation(offset[0]*scale, offset[1]*scale, offset[2]*scale)
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# Redraw if debugging
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if debug: Blender.Redraw()
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#===============================================#
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# MAIN FUNCTION - All things are done from here #
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#===============================================#
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def loadBVH(filename):
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global scale
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print ''
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print 'BVH Importer 1.0 by Campbell Barton (Ideasman) - ideasman@linuxmail.org'
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alpha='abcdefghijklmnopqrstuvewxyz'
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ALPHA=alpha+alpha.upper()
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ALPHA+=' 0123456789+-{}. '
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time1 = Blender.sys.time()
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tmpScale = getScale()
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if tmpScale != None:
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scale = tmpScale
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# File loading stuff
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# Open the file for importing
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file = open(filename, 'r')
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fileData = file.readlines()
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# Make a list of lines
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lines = []
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for fileLine in fileData:
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fileLine=fileLine.replace('..','.')
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newLine = string.split(fileLine)
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if newLine != []:
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t=[]
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for n in newLine:
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for n0 in n:
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if n0 not in ALPHA:
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n=n.replace(n0,'')
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t.append(n)
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lines.append(t)
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del fileData
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# End file loading code
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# Call object names with this prefix, mainly for scenes with multiple BVH's - Can imagine most partr names are the same
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# So in future
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#prefix = str(len(lines)) + '_'
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prefix = '_'
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# Create Hirachy as empties
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if lines[0][0] == 'HIERARCHY':
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print 'Importing the BVH Hierarchy for:', filename
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else:
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return 'ERROR: This is not a BVH file'
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# A liniar list of ancestors to keep track of a single objects heratage
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# at any one time, this is appended and removed, dosent store tree- just a liniar list.
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# ZERO is a place holder that means we are a root node. (no parents)
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parent = [None]
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#channelList [(<objectName>, [channelType1, channelType2...]), (<objectName>, [channelType1, channelType2...)]
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channelList = []
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channelIndex = -1
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lineIdx = 1 # An index for the file.
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while lineIdx < len(lines) -1:
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#...
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if lines[lineIdx][0] == 'ROOT' or lines[lineIdx][0] == 'JOINT':
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if lines[lineIdx][0] == 'JOINT' and len(lines[lineIdx])>2:
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for j in range(2,len(lines[lineIdx])) :
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lines[lineIdx][1]+='_'+lines[lineIdx][j]
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# MAY NEED TO SUPPORT MULTIPLE ROOT's HERE!!!, Still unsure weather multiple roots are possible.??
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print len(parent) * ' ' + 'node:',lines[lineIdx][1],' parent:',parent[-1]
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print lineIdx
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name = lines[lineIdx][1]
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print name,lines[lineIdx+1],lines[lineIdx+2]
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lineIdx += 2 # Incriment to the next line (Offset)
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offset = ( float(lines[lineIdx][1]), float(lines[lineIdx][2]), float(lines[lineIdx][3]) )
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lineIdx += 1 # Incriment to the next line (Channels)
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# newChannel[Xposition, Yposition, Zposition, Xrotation, Yrotation, Zrotation]
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# newChannel has Indecies to the motiondata,
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# -1 refers to the last value that will be added on loading at a value of zero
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# We'll add a zero value onto the end of the MotionDATA so this is always refers to a value.
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newChannel = [-1, -1, -1, -1, -1, -1]
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for channel in lines[lineIdx][2:]:
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channelIndex += 1 # So the index points to the right channel
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if channel == 'Xposition':
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newChannel[0] = channelIndex
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elif channel == 'Yposition':
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newChannel[1] = channelIndex
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elif channel == 'Zposition':
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newChannel[2] = channelIndex
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elif channel == 'Xrotation':
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newChannel[3] = channelIndex
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elif channel == 'Yrotation':
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newChannel[4] = channelIndex
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elif channel == 'Zrotation':
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newChannel[5] = channelIndex
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channelList.append(newChannel)
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channels = lines[lineIdx][2:]
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# Call funtion that uses the gatrhered data to make an empty.
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makeJoint(name, parent, prefix, offset, channels)
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# If we have another child then we can call ourselves a parent, else
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parent.append(name)
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# Account for an end node
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if lines[lineIdx][0] == 'End' and lines[lineIdx][1] == 'Site': # There is somtimes a name afetr 'End Site' but we will ignore it.
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lineIdx += 2 # Incriment to the next line (Offset)
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offset = ( float(lines[lineIdx][1]), float(lines[lineIdx][2]), float(lines[lineIdx][3]) )
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makeEnd(parent, prefix, offset)
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# Just so we can remove the Parents in a uniform way- End end never has kids
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# so this is a placeholder
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parent.append(None)
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if lines[lineIdx] == ['}']:
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parent = parent[:-1] # Remove the last item
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#=============================================#
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# BVH Structure loaded, Now import motion #
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#=============================================#
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if lines[lineIdx] == ['MOTION']:
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print '\nImporting motion data'
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lineIdx += 3 # Set the cursor to the forst frame
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#=============================================#
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# Loop through frames, each line a frame #
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#=============================================#
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currentFrame = 1
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print 'frames: ',
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#=============================================#
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# Add a ZERO keyframe, this keeps the rig #
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# so when we export we know where all the #
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# joints start from #
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#=============================================#
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obIdx = 0
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while obIdx < len(objectList) -1:
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if channelList[obIdx][0] != -1:
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objectList[obIdx].getIpo().getCurve('LocX').addBezier((currentFrame,0))
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if channelList[obIdx][1] != -1:
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objectList[obIdx].getIpo().getCurve('LocY').addBezier((currentFrame,0))
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if channelList[obIdx][2] != -1:
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objectList[obIdx].getIpo().getCurve('LocZ').addBezier((currentFrame,0))
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if channelList[obIdx][3] != '-1' or channelList[obIdx][4] != '-1' or channelList[obIdx][5] != '-1':
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objectList[obIdx].getIpo().getCurve('RotX').addBezier((currentFrame,0))
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objectList[obIdx].getIpo().getCurve('RotY').addBezier((currentFrame,0))
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objectList[obIdx].getIpo().getCurve('RotZ').addBezier((currentFrame,0))
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obIdx += 1
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while lineIdx < len(lines):
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# Exit loop if we are past the motiondata.
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# Some BVH's have extra tags like 'CONSTRAINTS and MOTIONTAGS'
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# I dont know what they do and I dont care, they'll be ignored here.
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if len(lines[lineIdx]) < len(objectList):
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print '...ending on unknown tags'
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break
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currentFrame += 1 # Incriment to next frame
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#=============================================#
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# Import motion data and assign it to an IPO #
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#=============================================#
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lines[lineIdx].append('0') # Use this as a dummy var for objects that dont have a rotate channel.
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obIdx = 0
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if debug: Blender.Redraw()
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while obIdx < len(objectList) -1:
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if channelList[obIdx][0] != -1:
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VAL0=lines[lineIdx][channelList[obIdx][0]]
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if VAL0.find('.')==-1:
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VAL0=VAL0[:len(VAL0)-6]+'.'+VAL0[-6:]
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objectList[obIdx].getIpo().getCurve('LocX').addBezier((currentFrame, scale * float(VAL0)))
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if channelList[obIdx][1] != -1:
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VAL1=lines[lineIdx][channelList[obIdx][0]]
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if VAL1.find('.')==-1:
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VAL1=VAL1[:len(VAL1)-6]+'.'+VAL1[-6:]
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objectList[obIdx].getIpo().getCurve('LocY').addBezier((currentFrame, scale * float(VAL1)))
|
|
|
|
if channelList[obIdx][2] != -1:
|
|
VAL2=lines[lineIdx][channelList[obIdx][0]]
|
|
if VAL2.find('.')==-1:
|
|
VAL2=VAL2[:len(VAL2)-6]+'.'+VAL2[-6:]
|
|
objectList[obIdx].getIpo().getCurve('LocZ').addBezier((currentFrame, scale * float(VAL2)))
|
|
|
|
if channelList[obIdx][3] != '-1' or channelList[obIdx][4] != '-1' or channelList[obIdx][5] != '-1':
|
|
VAL3=lines[lineIdx][channelList[obIdx][3]]
|
|
if VAL3.find('.')==-1:
|
|
VAL3=VAL3[:len(VAL3)-6]+'.'+VAL3[-6:]
|
|
|
|
VAL4=lines[lineIdx][channelList[obIdx][4]]
|
|
if VAL4.find('.')==-1:
|
|
VAL4=VAL4[:len(VAL4)-6]+'.'+VAL4[-6:]
|
|
|
|
VAL5=lines[lineIdx][channelList[obIdx][5]]
|
|
if VAL5.find('.')==-1:
|
|
VAL5=VAL5[:len(VAL5)-6]+'.'+VAL5[-6:]
|
|
|
|
x, y, z = eulerRotate(float(VAL3), float(VAL4), float(VAL5))
|
|
|
|
objectList[obIdx].getIpo().getCurve('RotX').addBezier((currentFrame, x))
|
|
objectList[obIdx].getIpo().getCurve('RotY').addBezier((currentFrame, y))
|
|
objectList[obIdx].getIpo().getCurve('RotZ').addBezier((currentFrame, z))
|
|
|
|
obIdx += 1
|
|
# Done importing motion data #
|
|
|
|
# lines[lineIdx] = None # Scrap old motion data, save some memory?
|
|
lineIdx += 1
|
|
# We have finished now
|
|
print currentFrame, 'done.'
|
|
|
|
# No point in looking further, when this loop is done
|
|
# There is nothine else left to do
|
|
print 'Imported ', currentFrame, ' frames'
|
|
break
|
|
|
|
# Main file loop
|
|
lineIdx += 1
|
|
print "bvh import time: ", Blender.sys.time() - time1
|
|
|
|
Blender.Window.FileSelector(loadBVH, "Import BVH")
|