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fbx export update

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* normalize bone weights (deep exploration 5 assumed they were normalized and does crazy stuff otherwise)
* fixed some mistakes in last commit.
This commit is contained in:
Campbell Barton 2007-08-24 07:07:18 +00:00
parent f51acfb724
commit 45cbafe08d
1 changed files with 58 additions and 26 deletions
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84
release/scripts/export_fbx.py
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@ -161,7 +161,6 @@ def increment_string(t):
name = name[:-1]
if num: return '%s%d' % (name, int(num)+1)
else: return name + '_0'
# storage classes
class my_bone_class:
@ -256,6 +255,25 @@ class my_bone_class:
def mat4x4str(mat):
return '%.15f,%.15f,%.15f,%.15f,%.15f,%.15f,%.15f,%.15f,%.15f,%.15f,%.15f,%.15f,%.15f,%.15f,%.15f,%.15f' % tuple([ f for v in mat for f in v ])
def meshNormalizedWeights(me):
try: # account for old bad BPyMesh
groupNames, vWeightList = BPyMesh.meshWeight2List(me)
except:
return [],[]
if not groupNames:
return [],[]
for i, vWeights in enumerate(vWeightList):
tot = 0.0
for w in vWeights:
tot+=w
if tot:
for j, w in enumerate(vWeights):
vWeights[j] = w/tot
return groupNames, vWeightList
header_comment = \
'''; FBX 6.1.0 project file
@ -1007,7 +1025,8 @@ def write(filename, batch_objects = None, \
}''')
# in the example was 'Bip01 L Thigh_2'
def write_sub_deformer_skin(obname, group_name, bone, me, matrix_mod):
#def write_sub_deformer_skin(obname, group_name, bone, me, matrix_mod):
def write_sub_deformer_skin(obname, group_name, bone, weights, matrix_mod):
'''
Each subdeformer is spesific to a mesh, but the bone it links to can be used by many sub-deformers
So the SubDeformer needs the mesh-object name as a prefix to make it unique
@ -1028,7 +1047,10 @@ def write(filename, batch_objects = None, \
UserData: "", ""''')
try:
vgroup_data = me.getVertsFromGroup(bone.name, 1)
# Before we used normalized wright list
#vgroup_data = me.getVertsFromGroup(bone.name, 1)
group_index = weights[0].index(bone.name)
vgroup_data = [(j, weight[group_index]) for j, weight in enumerate(weights[1]) if weight[group_index]]
except:
vgroup_data = []
@ -1040,7 +1062,7 @@ def write(filename, batch_objects = None, \
file.write('%i' % vg[0])
i=0
else:
if i==38:
if i==23:
file.write('\n\t\t')
i=0
file.write(',%i' % vg[0])
@ -1699,6 +1721,10 @@ Objects: {''')
write_texture(texname, tex, i)
i+=1
# Get normalized weights for temorary use
# NOTE - c4d and motionbuilder dont need normalized weights, but deep-exploration 5 does and (max?) do.
tmp_normalized_weights = dict([(me.name, meshNormalizedWeights(me)) for obname, ob, mtx, me, mats, arm, armname in ob_meshes])
# Write armature modifiers
# TODO - add another MODEL? - because of this skin definition.
for obname, ob, mtx, me, mats, arm, armname in ob_meshes:
@ -1709,7 +1735,8 @@ Objects: {''')
for mybone in ob_bones:
if me in mybone.blenMeshes.itervalues():
#write_sub_deformer_skin(obname, bonename, bone, me, armob.matrixWorld)
write_sub_deformer_skin(obname, mybone.fbxName, mybone.blenBone, me, mybone.blenArmature.matrixWorld)
#write_sub_deformer_skin(obname, mybone.fbxName, mybone.blenBone, me, mybone.blenArmature.matrixWorld)
write_sub_deformer_skin(obname, mybone.fbxName, mybone.blenBone, tmp_normalized_weights[me.name], mybone.blenArmature.matrixWorld)
# Write pose's really weired, only needed when an armature and mesh are used together
# each by themselves dont need pose data. for now only pose meshes and bones
@ -1964,11 +1991,6 @@ Connections: {''')
# unlikely to ever happen but if no actions applied to armatures, just use the last compatible armature.
if not action_default:
action_default = action_lastcompat
if action_default:
file.write('\n\tCurrent: "%s"' % sane_takename(action_default))
else:
file.write('\n\tCurrent: "Default Take"')
del action_lastcompat
@ -1978,6 +2000,11 @@ Connections: {''')
Takes: {''')
if action_default:
file.write('\n\tCurrent: "%s"' % sane_takename(action_default))
else:
file.write('\n\tCurrent: "Default Take"')
for blenAction in tmp_actions:
# we have tagged all actious that are used be selected armatures
if blenAction:
@ -2006,9 +2033,9 @@ Takes: {''')
# print '\t\tSetting Action!', blenAction
# sce.update(1)
# file.write('\n\t\tFileName: "Default_Take.tak"') # ??? - not sure why this is needed
file.write('\n\t\tLocalTime: %i,%i"' % (fbx_time(act_start-1), fbx_time(act_end-1))) # ??? - not sure why this is needed
file.write('\n\t\tReferenceTime: %i,%i"' % (fbx_time(act_start-1), fbx_time(act_end-1))) # ??? - not sure why this is needed
file.write('\n\t\tFileName: "Default_Take.tak"') # ??? - not sure why this is needed
file.write('\n\t\tLocalTime: %i,%i' % (fbx_time(act_start-1), fbx_time(act_end-1))) # ??? - not sure why this is needed
file.write('\n\t\tReferenceTime: %i,%i' % (fbx_time(act_start-1), fbx_time(act_end-1))) # ??? - not sure why this is needed
file.write('''
@ -2053,7 +2080,7 @@ Takes: {''')
# Loop on each axis of the bone
file.write('\n\t\t\t\t\tChannel: "%s" {'% ('XYZ'[i])) # translation
file.write('\n\t\t\t\t\t\tDefault: %.15f' % context_bone_anim_vecs[0][i] )
file.write('\n\t\t\t\t\t\tKeyVer: 4004')
file.write('\n\t\t\t\t\t\tKeyVer: 4005')
if not ANIM_OPTIMIZE:
# Just write all frames, simple but in-eficient
@ -2064,7 +2091,10 @@ Takes: {''')
if frame!=act_start:
file.write(',')
# Curve types are
# C,n is for bezier? - linear is best for now so we can do simple keyframe removal
file.write('\n\t\t\t\t\t\t\t%i,%.15f,C,n' % (fbx_time(frame-1), context_bone_anim_vecs[frame-act_start][i] ))
#file.write('\n\t\t\t\t\t\t\t%i,%.15f,L' % (fbx_time(frame-1), context_bone_anim_vecs[frame-act_start][i] ))
frame+=1
else:
# remove unneeded keys, j is the frame, needed when some frames are removed.
@ -2079,16 +2109,18 @@ Takes: {''')
del context_bone_anim_keys[j]
if len(context_bone_anim_keys) == 2 and context_bone_anim_keys[0][0] == context_bone_anim_keys[1][0]:
# This axis has no moton
context_bone_anim_keys = []
file.write('\n\t\t\t\t\t\tKeyCount: %i' % len(context_bone_anim_keys))
file.write('\n\t\t\t\t\t\tKey: ')
for val, frame in context_bone_anim_keys:
if frame!=act_start:
file.write(',')
# frame is alredy one less then blenders frame
file.write('\n\t\t\t\t\t\t\t%i,%.15f,C,n' % (fbx_time(frame), val ))
# This axis has no moton, its okay to skip KeyCount and Keys in this case
pass
else:
# We only need to write these if there is at least one
file.write('\n\t\t\t\t\t\tKeyCount: %i' % len(context_bone_anim_keys))
file.write('\n\t\t\t\t\t\tKey: ')
for val, frame in context_bone_anim_keys:
if frame!=act_start:
file.write(',')
# frame is alredy one less then blenders frame
file.write('\n\t\t\t\t\t\t\t%i,%.15f,C,n' % (fbx_time(frame), val ))
#file.write('\n\t\t\t\t\t\t\t%i,%.15f,L' % (fbx_time(frame), val ))
if i==0: file.write('\n\t\t\t\t\t\tColor: 1,0,0')
elif i==1: file.write('\n\t\t\t\t\t\tColor: 0,1,0')
@ -2248,7 +2280,7 @@ def fbx_ui_write(filename):
# Keep the order the same as above for simplicity
# the [] is a dummy arg used for objects
print GLOBALS.keys()
write(\
filename, None,\
GLOBALS['EXP_OBS_SELECTED'].val,\
@ -2417,7 +2449,7 @@ def write_ui():
#test = [write_ui]
if __name__ == '__main__':
# Cant call the file selector first because of a bug in the interface that crashes it.
#Blender.Window.FileSelector(write_ui, 'Export FBX', Blender.sys.makename(ext='.fbx'))
# Blender.Window.FileSelector(write_ui, 'Export FBX', Blender.sys.makename(ext='.fbx'))
#write('/scratch/test.fbx')
#write_ui('/scratch/test.fbx')
write_ui()