gabdab
…Looks like it is working now 
Apply Scale and Rotation before running the script.
Name your physics enabled models something+phys inside blender, as phys is the keyword matched for rigid bodies in xml file .
Convert .fbx models with assetimporter (using a batch comand perhaps) and move materials textures and models in relative folders inside Data .
[Current Blender version (2.76) has broken .fbx exporter , use 2.73 }
import bpy
import mathutils
import math
import time
path = bpy.path.abspath('//')
filepath=str(path +"livello.xml")
testPath=''
out = open(filepath, 'w')
out.write("<?xml version=\"1.0\"?>\n<scene id=\"1\">\n <attribute name=\"Name\" value=\"\" />\n <attribute name=\"Time Scale\" value=\"1\" />\n <attribute name=\"Smoothing Constant\" value=\"50\" />\n <attribute name=\"Snap Threshold\" value=\"5\" />\n <attribute name=\"Elapsed Time\" value=\"0\" />\n <attribute name=\"Next Replicated Node ID\" value=\"1\" />\n <attribute name=\"Next Replicated Component ID\" value=\"4\" />\n <attribute name=\"Next Local Node ID\" value=\"1677723000000\" />\n <attribute name=\"Next Local Component ID\" value=\"1677723900000\" />\n <attribute name=\"Variables\" />\n <attribute name=\"Variable Names\" value=\"\" />\n <component type=\"Octree\" id=\"1\" />\n <component type=\"DebugRenderer\" id=\"2\" />\n <component type=\"PhysicsWorld\" id=\"3\" />\n")
# loop through all the objects in the scene
scene = bpy.context.scene
obs=[]
oldObDataName=[]
#xml export_scene
nodeid=16777216
componentid=16777218
NextLocalNodeID=nodeid+1
NextLocalComponentID=componentid+1
rad=180.00/3.1415
physObj=''#indicates if object is rigidbody
for ob in bpy.context.selected_objects:
obs.append(ob)
ob.select = False
for ob in obs:
if ob.type == 'MESH':
ob.select = True
itDataName = 0
for it in oldObDataName:
if(ob.data.name==it):
itDataName = 1
break
if itDataName == 0:
wLoc = ob.location.copy()
wRot = ob.rotation_euler.copy()
wScal= ob.scale.copy()
ob.rotation_euler=(0,0,0)
ob.location=(0,0,0)
ob.scale = (1,1,1)
bpy.ops.export_scene.fbx(use_selection=1,filepath=str(path) +ob.data.name + '.fbx')
print (str(path) +str(testPath)+"/"+ob.data.name + '.fbx')
oldObDataName.append(ob.data.name)
ob.location = wLoc
ob.rotation_euler=wRot
ob.scale=wScal
ob.select = False
for ob in obs:
scene.objects.active = ob
ob.select = True
bpy.context.scene.objects.active = ob
obName = ob.name.replace(".", "_")
obDataName = ob.data.name
print (obName)
# make sure that we only export meshes
if ob.type == 'MESH':
rots=''
locs=''
scales=''
wLoc = ob.location.copy()
wRot = ob.rotation_euler.copy()
wScal= ob.scale.copy()
locs += "%.2f" %float(wLoc[0])+' '
locs += "%.2f" %float(wLoc[2]) +' '
locs += "%.2f" %float(wLoc[1])+' '
wRot[0]=float(-wRot[0])
arrTmp=float(-wRot[1])
wRot[1]=float(-wRot[2])
wRot[2]=arrTmp
wRot[2]=float(wRot[2])
eArr=mathutils.Euler(wRot)
print(eArr)
qArr = eArr.to_quaternion()
rots += str("%.2f" %(qArr[0]))+' '
rots += str("%.2f" %(qArr[1]))+' '
rots += str("%.2f" %(qArr[2]))+' '
rots += str("%.2f" %(qArr[3]))
scales += "%.2f" %float(wScal[0])+' '
scales += "%.2f" %float(wScal[2])+' '
scales += "%.2f" %float(wScal[1])
if obName.find('phys')!=-1:
physObj = "<component type=\"CollisionShape\" id=\"" + str(nodeid)+"\">\n<attribute name=\"Shape Type\" value=\"TriangleMesh\" />\n<attribute name=\"Model\" value=\""+"Model;Models/"+str(testPath)+"/"+ob.data.name+".mdl\" />\n</component>\n<component type=\"RigidBody\" id=\"" + str(nodeid+1)+"\">\n<attribute name=\"Physics Position\" value=\"" + locs + "\" />\n</component>"
nodeid +=2
else:
physObj=''
out.write( "<node id=\""
+str(nodeid)+
"\">\n<attribute name=\"Is Enabled\" value=\"true\" />\n<attribute name=\"Name\" value=\""
+obName+
"\" />\n<attribute name=\"Position\" value=\""
+locs+
"\" />\n<attribute name=\"Rotation\" value=\""
+rots+
"\" />\n<attribute name=\"Scale\" value=\""
+scales+
"\" />\n<attribute name=\"Variables\" />\n<component type=\"StaticModel\" id=\""
+str(componentid)+
"\" >\n<attribute name=\"Model\" value=\"Model;Models"
+str(testPath)+"/"+ob.data.name+
".mdl\" />\n")
out.write( "<attribute name=\"Material\" value=\"Material;Materials"+str(testPath)+"/")
if(len(ob.material_slots)!=0):
i=0
for mt in range(len(ob.material_slots)-1,-1,-1):
out.write( ob.material_slots[mt].name+
".xml")
if(i==(len(ob.material_slots))-1):
out.write("\" />\n")
else:
out.write(";Materials/"+str(testPath))
i += 1
else:
out.write("noMaterial.xml\" />\n")
out.write("</component>\n"+
physObj+
"</node>\n")
componentid += 1
nodeid += 1
'''
#as a reference for uv texture exporting as opposed to materials
me = ob.data
bool1=False
if me.uv_textures.active is not None:
for tf in me.uv_textures.active.data:
if tf.image:
img = tf.image.name
if(bool1==False):
print("uv texture: ",img)
##out.write(obName+"->setTexture(\"test_env_6_4_1/textures/"+img+"\");\n")
bool1=True
print(obName)
print(ob.material_slots[0].name)
for mat_slot in ob.material_slots:
print("matslot %s" %mat_slot.name)
for mtex_slot in mat_slot.material.texture_slots:
if mtex_slot:
# dump(mtex_slot)
#print("\t%s" % mtex_slot)
if hasattr(mtex_slot.texture , 'image'):
print("\t\t%s" % mtex_slot.texture.image.filepath)
#out.write(obName+"->setTexture(\""+mtex_slot.texture.image.filepath[2:]+"\");\n")
'''
# deselect the object and move on to another if any more are left
ob.select = False
for ob in obs:
ob.select = True
out.write("</scene>")
NextLocalNodeID=nodeid+1
NextLocalComponentID=componentid+1
out.close()Thou shalt not miss the video :
https://www.youtube.com/watch?v=O3w0ALouv3E
)