forked from bartvdbraak/blender
678 lines
20 KiB
Python
678 lines
20 KiB
Python
#!BPY
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"""
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Name: 'Empties to Armature'
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Blender: 241
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Group: 'Animation'
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Tooltip: 'Create Armature from a parented-empties chain'
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"""
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__author__ = " Jean-Baptiste PERIN (jb_perin(at)yahoo.fr) with valuable help from Vincent BILLET "
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__url__ = ("blender", "elysiun",
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"BVH 2 ARMATURE, http://perso.wanadoo.fr/jb.perin/",
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"Communicate problems and errors, http://www.zoo-logique.org/3D.Blender/newsportal/thread.php?group=3D.Blender")
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__version__ = "2.42"
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__bpydoc__ = """ BVH2ARM.py
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Script for generating armature on BVH empties.
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This script generates an armature upon an empty-made parented chain,
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and make the armature follow the empties
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Usage:<br>
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- Import a bvh in Blender (File->Import->BVH);<br>
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- Rotate some empties to match your model and insert Rot key for them. <br>
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- Select the root empty of the hierarchical chain.<br>
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- Launch this script ;<br>
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- Set up variables:<br>
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"hipbonename": the name of the main bone (automatically set to the selected empty).<br>
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"startframe": the first frame of your anim;<br>
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"endframe": the last frame of your anim;<br>
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"decimation": the frequency (in number of frame) to which the armature's pos is updated;<br>
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- Press "Create Armature".
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Notes: <br>
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- The start frame configuration is used as the rest pose for the armature.<br>
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- If the armature already exists when script is launched, the current armature is re-used.
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"""
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# --------------------------------------------------------------------------
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# BVH2ARM.py
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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 Blender
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from Blender import Mathutils
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import math
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dicEmptiesRestMatrix= {}
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dicEmptiesInvRestMatrix= {}
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dicBoneRestMatrix= {}
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dicBone={}
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dicEmptyChild={}
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dicBoneRestInvEmpRest={}
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dicEmpRestInvBoneRest={}
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restFrame = 1
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bonerest={}
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emprest={}
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emp2bone={}
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########################################################################
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#
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# UTILITY FUNCTIONS FOR HANDLING BONES AND EMPTIES
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#
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########################################################################
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def names(ob): return ob.getName()
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#########
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# Cette fonction renvoie la liste des empties attaches a root
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# in :
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# out : emp_list (List of Object) la liste des objets de type "Empty"
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#########
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def getTree(emp_list, root):
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empties=getAllEmpties()
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chlds = getChildren(root, empties)
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dicEmptyChild[root.getName()]=chlds
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for ch in chlds:
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emp_list.append(ch)
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getTree(emp_list,ch)
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#########
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# Cette fonction renvoie la liste des empties attaches a root
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# in :
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# out : emp_list (List of Object) la liste des objets de type "Empty"
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#########
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def getEmpties():
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global hipbonename
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emp_list = []
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root = Blender.Object.Get(hipbonename)
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emp_list.append(root)
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getTree(emp_list, root)
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return emp_list
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#########
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# Cette fonction renvoie la liste des empties
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# in :
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# out : emp_list (List of Object) la liste des objets de type "Empty"
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#########
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def getAllEmpties():
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emp_list = []
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objs = Blender.Object.Get()
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for o in objs:
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if o.getType()=="Empty":
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emp_list.append(o)
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return emp_list
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#########
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# Cette fonction renvoie la liste des empties
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# in :
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# out : emp_list (List of Object) la liste des objets de type "Empty"
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#########
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def getEmpty(name):
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p = None
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objs = Blender.Object.Get()
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for o in objs:
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if o.getType()=="Empty" and o.getName()==name:
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p = o
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return p
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##def getChild(emp, emp_list):
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## return dicEmptyChild[emp.getName()]
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#########
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# Cette fonction fournit la liste des enfants d'un empty
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# in : emp (Object) un empty
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# emp_list (List of Object) la liste des empties
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# out : children (List of Object) la liste des empties enfants de 'empty'
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#########
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def getChildren(emp, emp_list):
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children = []
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root_emp = getRootEmpties(emp_list)
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for em in emp_list:
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if (em.getName() != emp.getName()) and (em not in root_emp):
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if (em.getParent().getName() == emp.getName()):
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children.append(em)
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return children
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#########
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# Cette fonction renvoie la liste des empties n'ayant pas de parent
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# in : emp_list (List) une liste d'empties
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# out : root (List) le (ou les) empty n'ayant pas de parent
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#########
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def getRootEmpties(emp_list):
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root = []
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for em in emp_list:
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if em.getParent() == None:
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root.append(em)
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return root
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#########
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# Cette fonction renvoie le bone de nom 'name' dans l'armature 'armature'
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# in : armature (Armature) l'armature dans laquelle cherchait le bone
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# name (String) le nom de l'os a chercher
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# out : p (Bone)
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#########
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#def getBone(armature, name):
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# return (dicBone[name])
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#p = None
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#bones = armature.getBones()
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#for i in bones:
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# if i.getName() == name:
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# p = i
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# break
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#return p
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def eraseIPO (objectname):
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object = Blender.Object.Get(objectname)
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lIpo = object.getIpo()
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if lIpo != None:
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nbCurves = lIpo.getNcurves()
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for i in range(nbCurves):
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nbBezPoints = lIpo.getNBezPoints(i)
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for j in range(nbBezPoints):
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lIpo.delBezPoint(i)
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def GetOrCreateIPO(name):
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ipos = Blender.Ipo.Get()
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if name in map(names,ipos):
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myipo = Blender.Ipo.Get(name)
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print name+' exists'
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else:
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myipo = Blender.Ipo.New('Object',name)
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print name+' was created'
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return myipo
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def GetOrCreateCurve(ipo, curvename):
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curves = ipo.getCurves()
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if curvename in map(names,curves):
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mycurve = ipo.getCurve(curvename)
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print curvename+' exists'
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else:
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mycurve = ipo.addCurve(curvename)
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print curvename+' was created'
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return mycurve
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########################################################################
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#
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# FUNCTIONS FOR COMPUTING POSITION AND ROTATION OF BONES
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#
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########################################################################
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#########
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# Cette fonction
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# in :
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# out :
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#########
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def computeScaledPos(vec):
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global scalef
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vec2 = Mathutils.Vector([vec[0]*scalef, vec[1]*scalef, vec[2]*scalef])
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return vec2
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########################################################################
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#
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# FUNCTIONS FOR CREATING AND MOVING ARMATURES
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#
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########################################################################
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#########
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# Cette fonction
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# in :
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# out :
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#########
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def createBone (armature, empty, bone, empties):
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global bonerest, emprest
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children = getChildren(empty, empties)
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if len(children) != 0:
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for ch in children:
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if len(children) >= 2:
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bonename = empty.getName()[1:len(empty.getName())]+'_'+ch.getName()[1:len(ch.getName())]
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else :
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bonename = empty.getName()[1:len(empty.getName())]
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print "creating Bone %s"%(bonename)
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b=Blender.Armature.Editbone()
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b.head = (computeScaledPos(empty.getMatrix('worldspace').translationPart()))
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b.tail = (computeScaledPos(ch.getMatrix('worldspace').translationPart()))
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b.parent = bone
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# armature.makeEditable() should already be editable????
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armature.bones[bonename] = b
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#print b.matrix
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bonerest[bonename]=Blender.Mathutils.Matrix(b.matrix).resize4x4()
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emprest[empty.getName()]=Blender.Mathutils.Matrix(empty.getMatrix('localspace')).resize4x4()
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#M = Blender.Mathutils.Matrix(emprest[empty.getName()])
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#emp2bone[bonename] = Blender.Mathutils.Matrix(M.invert().rotationPart()*bonerest[bonename].rotationPart()).resize4x4()
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#print emp2bone[bonename].rotationPart().toEuler()
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dicBone[b.name]=b
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createBone(armature, ch, b, empties)
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#########
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# Cette fonction
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# in :
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# out :
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#########
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def f_createBone (armData, empty, bone, empties):
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bones = armData.bones.values()
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def getBone(bonename):
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bone = None
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for b in bones:
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#print b.getName()
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if b.name == bonename:
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bone = b
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return bone
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children = getChildren(empty, empties)
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for ch in children:
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if len(children) >= 2:
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bonename = empty.getName()[1:len(empty.getName())]+'_'+ch.getName()[1:len(ch.getName())]
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else :
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bonename = empty.getName()[1:len(empty.getName())]
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#b=Blender.Armature.Bone.New(bonename)
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b=getBone(bonename)
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b.head = (computeScaledPos(empty.getMatrix('worldspace').translationPart()))
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b.tail = (computeScaledPos(ch.getMatrix('worldspace').translationPart()))
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b.parent = bone
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bonerest[bonename]=Blender.Mathutils.Matrix(b.matrix).resize4x4()
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emprest[empty.getName()]=Blender.Mathutils.Matrix(empty.getMatrix('localspace')).resize4x4()
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dicBone[b.name]=b
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#print "Ajout de ", b.getName()," au dictionnaire"
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f_createBone(armData, ch, b, empties)
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#########
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# Cette fonction fabrique une arma
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# in :
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# out :
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#########
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def createArmature (armObj, rootEmpty, empties):
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global bonerest, emprest
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armData=Blender.Armature.Armature('monArmature')
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children = getChildren(rootEmpty, empties)
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armObj.link(armData)
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armData.makeEditable()
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for ch in children:
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b=Blender.Armature.Editbone()
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bonename = rootEmpty.getName()[1:len(rootEmpty.getName())] + ch.getName()[1:len(ch.getName())]
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print "creating Bone %s"%(bonename)
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#print b, dir([b])
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b.head=(computeScaledPos(rootEmpty.getMatrix('worldspace').translationPart()))
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b.tail=(computeScaledPos(ch.getMatrix('worldspace').translationPart()))
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bonerest[bonename]=Blender.Mathutils.Matrix(b.matrix).resize4x4()
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emprest[rootEmpty.getName()]=Blender.Mathutils.Matrix(rootEmpty.getMatrix('localspace')).resize4x4()
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armData.bones[bonename] = b
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dicBone[b.name]=b
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createBone(armData, ch, b, empties)
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armData.update()
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return armData
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#########
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# Cette fonction fabrique une arma
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# in :
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# out :
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#########
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def f_createArmature (rootEmpty, empties, armData):
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armData.makeEditable()
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bones = armData.bones.values()
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def getBone(bonename):
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bone = None
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for b in bones:
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#print b.getName()
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if b.name == bonename:
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bone = b
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return bone
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children = getChildren(rootEmpty, empties)
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for ch in children:
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b=getBone(rootEmpty.getName()[1:len(rootEmpty.getName())] + ch.getName()[1:len(ch.getName())])
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dicBone[b.name]=b
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#print "Ajout de ", b.getName()," au dictionnaire"
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bonerest[b.name]=Blender.Mathutils.Matrix(b.matrix).resize4x4()
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emprest[rootEmpty.getName()]=Blender.Mathutils.Matrix(rootEmpty.getMatrix('localspace')).resize4x4()
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f_createBone(armData, ch, b, empties)
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armData.update()
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#########
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# Cette fonction
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# in :
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# out :
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#########
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def moveBones(larmature, empty, empties):
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#print "move bones"
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global bonerest, emprest
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children = dicEmptyChild[empty.getName()]
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thepose = larmature.getPose()
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for ch in children:
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if len(children) >= 2:
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bonename = empty.getName()[1:len(empty.getName())]+'_'+ch.getName()[1:len(ch.getName())]
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else :
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bonename = empty.getName()[1:len(empty.getName())]
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thebone = thepose.bones[bonename]
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trMatrix = empty.getMatrix('localspace')
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bonerestmat = Blender.Mathutils.Matrix(bonerest[bonename])
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invbonerestmat = Blender.Mathutils.Matrix(bonerest[bonename])
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invbonerestmat.invert()
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trMatrix[3][0] = 0.0
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trMatrix[3][1] = 0.0
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trMatrix[3][2] = 0.0
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invemprestmat = Blender.Mathutils.Matrix(emprest[empty.getName()].rotationPart()).resize4x4()
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invemprestmat.invert()
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emprestmat = Blender.Mathutils.Matrix(emprest[empty.getName()].rotationPart()).resize4x4()
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thebone.localMatrix = bonerestmat* invemprestmat *trMatrix * invbonerestmat
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thepose.update()
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thebone.insertKey(larmature, Blender.Get('curframe'), [Blender.Object.Pose.ROT, Blender.Object.Pose.LOC])
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thepose.update()
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chch = dicEmptyChild[ch.getName()]
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if len(chch) >= 1:
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moveBones(larmature, ch, empties)
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#########
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# Cette fonction
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# in :
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# out :
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#########
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def moveArmature (larmature, empties):
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global bonerest, emprest
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#print "move armature"
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thepose = larmature.getPose()
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#armature.makeEditable()
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root = Blender.Object.Get(hipbonename)
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children = dicEmptyChild[hipbonename]
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for ch in children:
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b=dicBone[hipbonename[1:len(hipbonename)] + ch.getName()[1:len(ch.getName())]]
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moveBones(larmature, ch, empties)
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#armature.update()
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########################################################################
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#
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# MAIN PROGRAM
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#
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########################################################################
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def RemoveEmpties():
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global endframe, startframe,hipbonename
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lesEmpties = getEmpties()
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scn = Blender.Scene.getCurrent()
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#scn.link (armObj)
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for em in lesEmpties:
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eraseIPO (em.getName())
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scn.unlink(em)
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Blender.Redraw()
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def Main():
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global endframe, startframe,hipbonename, framedecimation
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print "*****START*****"
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Blender.Set("curframe",restFrame)
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##-----------
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## Positionnement des empties
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##-----------
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em0 = Blender.Object.Get(hipbonename)
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Blender.Redraw()
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##-----------
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## Creation de l'armature et des os
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##-----------
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lesEmpties = getEmpties()
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#print dicEmptyChild
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print "creating armature"
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#armData = createArmature(em0, lesEmpties)
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objects = Blender.Object.Get()
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if 'OBArmature' in map(names,objects):
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armObj = Blender.Object.Get('OBArmature')
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armData = armObj.getData()
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print 'OBArmature'+' exists'
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eraseIPO ('OBArmature')
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#print armData.getBones()
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f_createArmature(em0, lesEmpties, armData)
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else:
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armObj=Blender.Object.New('Armature', 'OBArmature')
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armData= createArmature(armObj, em0, lesEmpties)
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#armObj.link(armData)
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scn = Blender.Scene.getCurrent()
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scn.link (armObj)
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print 'OBArmature'+' was created'
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#return myobj
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print emprest
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armData.drawType = Blender.Armature.STICK
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##-----------
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## Creation de l'ipo de l'armature
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##-----------
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lipo = GetOrCreateIPO('BVHIpo')
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armObj.setIpo(lipo)
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curvX = GetOrCreateCurve(lipo, 'LocX')
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curvY = GetOrCreateCurve(lipo, 'LocY')
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curvZ = GetOrCreateCurve(lipo, 'LocZ')
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curvrX = GetOrCreateCurve(lipo, 'RotX')
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curvrY = GetOrCreateCurve(lipo, 'RotY')
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curvrZ = GetOrCreateCurve(lipo, 'RotZ')
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print "animating armature"
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#armData.drawAxes(1)
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#armData.drawNames(1)
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Blender.Redraw()
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action = Blender.Armature.NLA.NewAction()
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action.setActive(armObj)
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##-----------
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## Enregistrement de la position de l'armature
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##-----------
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bones = armData.bones.values()
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curvX.addBezier((Blender.Get("curframe"), getEmpty(hipbonename).getMatrix('worldspace').translationPart()[0]*scalef))
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curvY.addBezier((Blender.Get("curframe"), getEmpty(hipbonename).getMatrix('worldspace').translationPart()[1]*scalef))
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curvZ.addBezier((Blender.Get("curframe"), getEmpty(hipbonename).getMatrix('worldspace').translationPart()[2]*scalef))
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curvX.setInterpolation('Linear')
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curvX.setExtrapolation('Constant')
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curvY.setInterpolation('Linear')
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curvY.setExtrapolation('Constant')
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curvZ.setInterpolation('Linear')
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curvZ.setExtrapolation('Constant')
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curvrX.setInterpolation('Linear')
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curvrX.setExtrapolation('Constant')
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curvrY.setInterpolation('Linear')
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curvrY.setExtrapolation('Constant')
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curvrZ.setInterpolation('Linear')
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curvrZ.setExtrapolation('Constant')
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|
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Blender.Redraw()
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Blender.Set("curframe",startframe)
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while endframe >= Blender.Get("curframe"):
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|
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##-----------
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|
## Positionnement des os
|
|
##-----------
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|
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moveArmature(armObj, lesEmpties)
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|
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##-----------
|
|
## Enregistrement de la position de l'armature
|
|
##-----------
|
|
|
|
curvX.addBezier((Blender.Get("curframe"), (getEmpty(hipbonename).getMatrix('worldspace').translationPart()[0])*scalef))
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curvY.addBezier((Blender.Get("curframe"), (getEmpty(hipbonename).getMatrix('worldspace').translationPart()[1])*scalef))
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curvZ.addBezier((Blender.Get("curframe"), (getEmpty(hipbonename).getMatrix('worldspace').translationPart()[2])*scalef))
|
|
curvrX.addBezier((Blender.Get("curframe"), (getEmpty(hipbonename).getMatrix('worldspace').rotationPart().toEuler()[0])*scalef/10))
|
|
curvrY.addBezier((Blender.Get("curframe"), (getEmpty(hipbonename).getMatrix('worldspace').rotationPart().toEuler()[1])*scalef/10))
|
|
curvrZ.addBezier((Blender.Get("curframe"), (getEmpty(hipbonename).getMatrix('worldspace').rotationPart().toEuler()[2])*scalef/10))
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|
|
|
##-----------
|
|
## Passage a la frame suivante
|
|
##-----------
|
|
num_frame = Blender.Get("curframe")+framedecimation
|
|
print num_frame
|
|
Blender.Set("curframe", num_frame)
|
|
|
|
curvX.Recalc()
|
|
curvY.Recalc()
|
|
curvZ.Recalc()
|
|
curvrX.Recalc()
|
|
curvrY.Recalc()
|
|
curvrZ.Recalc()
|
|
Blender.Set("curframe",startframe)
|
|
Blender.Redraw()
|
|
|
|
print "*****END*****"
|
|
|
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|
|
########################################################################
|
|
#
|
|
# GUI FUNCTIONS AND VARIABLES
|
|
#
|
|
########################################################################
|
|
|
|
EFrame = Blender.Draw.Create(5)
|
|
IFrame = Blender.Draw.Create(6)
|
|
SFrame2 = Blender.Draw.Create(5)
|
|
HBName = Blender.Draw.Create(0)
|
|
FrameDecimation = Blender.Draw.Create(5)
|
|
ScaleF = Blender.Draw.Create(0)
|
|
|
|
Msg = ' '
|
|
|
|
def event (evt, val):
|
|
if evt == Blender.Draw.ESCKEY:
|
|
Blender.Draw.Exit()
|
|
return
|
|
|
|
def button_event(evt):
|
|
global EFrame, IFrame, SFrame2, HBName, Msg , FrameDecimation, ScaleF
|
|
global endframe, startframe, insertionframe, hipbonename, framedecimation , scalef
|
|
if evt==1:
|
|
startframe = SFrame2.val
|
|
insertionframe = 100 #IFrame.val
|
|
endframe = EFrame.val
|
|
hipbonename = HBName.val
|
|
framedecimation = FrameDecimation.val
|
|
scalef= 1.0 #eval(str(ScaleF.val))
|
|
#print "scalef = ", scalef
|
|
if startframe>=endframe:
|
|
Msg = 'Start frame must be lower than End frame'
|
|
error_txt = "Error|Start frame must be lower than End frame"
|
|
Blender.Draw.PupMenu(error_txt)
|
|
else:
|
|
ob = getEmpty(hipbonename)
|
|
if (ob!=None):
|
|
if ob.getParent()!=None:
|
|
Msg = 'Empty '+hipbonename+ ' is not a root bone.'
|
|
error_txt = "Error|Empty %s is not a root bone"%hipbonename
|
|
Blender.Draw.PupMenu(error_txt)
|
|
else:
|
|
if (0.0 > scalef):
|
|
Msg = 'Scale factor must be greater than 0'
|
|
error_txt = "Error|Scale factor must be greater than 0"
|
|
Blender.Draw.PupMenu(error_txt)
|
|
else:
|
|
#Blender.Draw.Exit()
|
|
Main()
|
|
#Main()
|
|
else:
|
|
error_txt = "Error|Empty %s not found"%hipbonename
|
|
Blender.Draw.PupMenu(error_txt)
|
|
Msg = 'Empty '+ hipbonename+ ' not found'
|
|
|
|
#Blender.Draw.Redraw(1)
|
|
elif evt==2:
|
|
hipbonename = HBName.val
|
|
ob = getEmpty(hipbonename)
|
|
if (ob!=None):
|
|
if ob.getParent()!=None:
|
|
error_txt = "Error|Empty %s is not a root bone"%hipbonename
|
|
Blender.Draw.PupMenu(error_txt)
|
|
|
|
Msg = 'Empty '+hipbonename+ ' is not a root bone.'
|
|
else:
|
|
#Blender.Draw.Exit()
|
|
RemoveEmpties()
|
|
else:
|
|
Msg = 'Empty '+ hipbonename+ ' not found'
|
|
|
|
#else:
|
|
# print "evt = ",evt
|
|
|
|
def GUI():
|
|
global EFrame, SFrame2, HBName, Msg , ScaleF, FrameDecimation
|
|
Blender.BGL.glClearColor(0,0,1,1)
|
|
Blender.BGL.glClear(Blender.BGL.GL_COLOR_BUFFER_BIT)
|
|
Blender.BGL.glColor3f(1,1,1)
|
|
Blender.BGL.glRasterPos2i(20,200)
|
|
selobj = Blender.Object.GetSelected()
|
|
if len(selobj) == 1 and type (selobj[0]) == Blender.Types.ObjectType:
|
|
hipname = selobj[0].getName()
|
|
else:
|
|
hipname = '_Hips'
|
|
Blender.Draw.Text ("BVH 2 ARMATURE v%s by %s"%(__version__, __author__), 'normal')
|
|
HBName = Blender.Draw.String("HipBoneName: ", 0, 20, 175, 250, 20, hipname, 100)
|
|
SFrame2 = Blender.Draw.Number("Startframe: ", 0, 20, 150, 250, 20, 1, 1,3000,"Start frame of anim")
|
|
EFrame = Blender.Draw.Number("Endframe: ", 0, 20, 125, 250, 20, Blender.Get("endframe"), 1,3000,"Last frame of anim")
|
|
FrameDecimation = Blender.Draw.Number("FrameDecimation: ", 0, 20, 75, 250, 20,1, 1,10,'number of frame to skip between two action keys')
|
|
Blender.Draw.Toggle("Create Armature", 1, 20, 10, 100, 20, 0, "Create Armature")
|
|
Blender.BGL.glRasterPos2i(20,40)
|
|
Blender.Draw.Text (Msg, 'normal')
|
|
|
|
|
|
Blender.Draw.Register(GUI, event, button_event)
|