add to contrib/py/scripts/addons/io_export_md3.py

expect a full suite of external game engine exports soon

io_export_md3.py

+
+__author__ = ["Xembie"]
+__version__ = '0.7'
+__url__ = ["www.blender.org"]
+
+"""
+Name: 'Quake Model 3 (.md3)...'
+Blender: 253
+Group: 'Export'
+Tooltip: 'Save a Quake Model 3 File'
+"""
+
+import bpy,struct,math,os
+
+MAX_QPATH = 64
+
+MD3_IDENT = "IDP3"
+MD3_VERSION = 15
+MD3_MAX_TAGS = 16
+MD3_MAX_SURFACES = 32
+MD3_MAX_FRAMES = 1024
+MD3_MAX_SHADERS = 256
+MD3_MAX_VERTICES = 4096
+MD3_MAX_TRIANGLES = 8192
+MD3_XYZ_SCALE = 64.0
+
+class md3Vert:
+	xyz = []
+	normal = 0
+	binaryFormat = "<3hH"
+	
+	def __init__(self):
+		self.xyz = [0.0, 0.0, 0.0]
+		self.normal = 0
+		
+	def GetSize(self):
+		return struct.calcsize(self.binaryFormat)
+	
+	# copied from PhaethonH <phaethon@linux.ucla.edu> md3.py
+	def Decode(self, latlng):
+		lat = (latlng >> 8) & 0xFF;
+		lng = (latlng) & 0xFF;
+		lat *= math.pi / 128;
+		lng *= math.pi / 128;
+		x = math.cos(lat) * math.sin(lng)
+		y = math.sin(lat) * math.sin(lng)
+		z =                 math.cos(lng)
+		retval = [ x, y, z ]
+		return retval
+	
+	# copied from PhaethonH <phaethon@linux.ucla.edu> md3.py
+	def Encode(self, normal):
+		x = normal[0]
+		y = normal[1]
+		z = normal[2]
+		# normalize
+		l = math.sqrt((x*x) + (y*y) + (z*z))
+		if l == 0:
+			return 0
+		x = x/l
+		y = y/l
+		z = z/l
+		
+		if (x == 0.0) & (y == 0.0) :
+			if z > 0.0:
+				return 0
+			else:
+				return (128 << 8)
+		
+		lng = math.acos(z) * 255 / (2 * math.pi)
+		lat = math.atan2(y, x) * 255 / (2 * math.pi)
+		retval = ((int(lat) & 0xFF) << 8) | (int(lng) & 0xFF)
+		return retval
+		
+	def Save(self, file):
+		tmpData = [0] * 4
+		tmpData[0] = int(self.xyz[0] * MD3_XYZ_SCALE)
+		tmpData[1] = int(self.xyz[1] * MD3_XYZ_SCALE)
+		tmpData[2] = int(self.xyz[2] * MD3_XYZ_SCALE)
+		tmpData[3] = self.normal
+		data = struct.pack(self.binaryFormat, tmpData[0], tmpData[1], tmpData[2], tmpData[3])
+		file.write(data)
+		
+class md3TexCoord:
+	u = 0.0
+	v = 0.0
+
+	binaryFormat = "<2f"
+
+	def __init__(self):
+		self.u = 0.0
+		self.v = 0.0
+		
+	def GetSize(self):
+		return struct.calcsize(self.binaryFormat)
+
+	def Save(self, file):
+		tmpData = [0] * 2
+		tmpData[0] = self.u
+		tmpData[1] = 1.0 - self.v
+		data = struct.pack(self.binaryFormat, tmpData[0], tmpData[1])
+		file.write(data)
+
+class md3Triangle:
+	indexes = []
+
+	binaryFormat = "<3i"
+
+	def __init__(self):
+		self.indexes = [ 0, 0, 0 ]
+		
+	def GetSize(self):
+		return struct.calcsize(self.binaryFormat)
+
+	def Save(self, file):
+		tmpData = [0] * 3
+		tmpData[0] = self.indexes[0]
+		tmpData[1] = self.indexes[2] # reverse
+		tmpData[2] = self.indexes[1] # reverse
+		data = struct.pack(self.binaryFormat,tmpData[0], tmpData[1], tmpData[2])
+		file.write(data)
+
+class md3Shader:
+	name = ""
+	index = 0
+	
+	binaryFormat = "<%dsi" % MAX_QPATH
+
+	def __init__(self):
+		self.name = ""
+		self.index = 0
+		
+	def GetSize(self):
+		return struct.calcsize(self.binaryFormat)
+
+	def Save(self, file):
+		tmpData = [0] * 2
+		tmpData[0] = self.name
+		tmpData[1] = self.index
+		data = struct.pack(self.binaryFormat, tmpData[0], tmpData[1])
+		file.write(data)
+
+class md3Surface:
+	ident = ""
+	name = ""
+	flags = 0
+	numFrames = 0
+	numShaders = 0
+	numVerts = 0
+	numTriangles = 0
+	ofsTriangles = 0
+	ofsShaders = 0
+	ofsUV = 0
+	ofsVerts = 0
+	ofsEnd = 0
+	shaders = []
+	triangles = []
+	uv = []
+	verts = []
+	
+	binaryFormat = "<4s%ds10i" % MAX_QPATH  # 1 int, name, then 10 ints
+	
+	def __init__(self):
+		self.ident = ""
+		self.name = ""
+		self.flags = 0
+		self.numFrames = 0
+		self.numShaders = 0
+		self.numVerts = 0
+		self.numTriangles = 0
+		self.ofsTriangles = 0
+		self.ofsShaders = 0
+		self.ofsUV = 0
+		self.ofsVerts = 0
+		self.ofsEnd
+		self.shaders = []
+		self.triangles = []
+		self.uv = []
+		self.verts = []
+		
+	def GetSize(self):
+		sz = struct.calcsize(self.binaryFormat)
+		self.ofsTriangles = sz
+		for t in self.triangles:
+			sz += t.GetSize()
+		self.ofsShaders = sz
+		for s in self.shaders:
+			sz += s.GetSize()
+		self.ofsUV = sz
+		for u in self.uv:
+			sz += u.GetSize()
+		self.ofsVerts = sz
+		for v in self.verts:
+			sz += v.GetSize()
+		self.ofsEnd = sz
+		return self.ofsEnd
+	
+	def Save(self, file):
+		self.GetSize()
+		tmpData = [0] * 12
+		tmpData[0] = self.ident
+		tmpData[1] = self.name
+		tmpData[2] = self.flags
+		tmpData[3] = self.numFrames
+		tmpData[4] = self.numShaders
+		tmpData[5] = self.numVerts
+		tmpData[6] = self.numTriangles
+		tmpData[7] = self.ofsTriangles
+		tmpData[8] = self.ofsShaders
+		tmpData[9] = self.ofsUV
+		tmpData[10] = self.ofsVerts
+		tmpData[11] = self.ofsEnd
+		data = struct.pack(self.binaryFormat, tmpData[0],tmpData[1],tmpData[2],tmpData[3],tmpData[4],tmpData[5],tmpData[6],tmpData[7],tmpData[8],tmpData[9],tmpData[10],tmpData[11])
+		file.write(data)
+
+		# write the tri data
+		for t in self.triangles:
+			t.Save(file)
+
+		# save the shader coordinates
+		for s in self.shaders:
+			s.Save(file)
+
+		# save the uv info
+		for u in self.uv:
+			u.Save(file)
+
+		# save the verts
+		for v in self.verts:
+			v.Save(file)
+
+class md3Tag:
+	name = ""
+	origin = []
+	axis = []
+	
+	binaryFormat="<%ds3f9f" % MAX_QPATH
+	
+	def __init__(self):
+		self.name = ""
+		self.origin = [0, 0, 0]
+		self.axis = [0, 0, 0, 0, 0, 0, 0, 0, 0]
+		
+	def GetSize(self):
+		return struct.calcsize(self.binaryFormat)
+		
+	def Save(self, file):
+		tmpData = [0] * 13
+		tmpData[0] = self.name
+		tmpData[1] = float(self.origin[0])
+		tmpData[2] = float(self.origin[1])
+		tmpData[3] = float(self.origin[2])
+		tmpData[4] = float(self.axis[0])
+		tmpData[5] = float(self.axis[1])
+		tmpData[6] = float(self.axis[2])
+		tmpData[7] = float(self.axis[3])
+		tmpData[8] = float(self.axis[4])
+		tmpData[9] = float(self.axis[5])
+		tmpData[10] = float(self.axis[6])
+		tmpData[11] = float(self.axis[7])
+		tmpData[12] = float(self.axis[8])
+		data = struct.pack(self.binaryFormat, tmpData[0],tmpData[1],tmpData[2],tmpData[3],tmpData[4],tmpData[5],tmpData[6], tmpData[7], tmpData[8], tmpData[9], tmpData[10], tmpData[11], tmpData[12])
+		file.write(data)
+	
+class md3Frame:
+	mins = 0
+	maxs = 0
+	localOrigin = 0
+	radius = 0.0
+	name = ""
+	
+	binaryFormat="<3f3f3ff16s"
+	
+	def __init__(self):
+		self.mins = [0, 0, 0]
+		self.maxs = [0, 0, 0]
+		self.localOrigin = [0, 0, 0]
+		self.radius = 0.0
+		self.name = ""
+		
+	def GetSize(self):
+		return struct.calcsize(self.binaryFormat)
+
+	def Save(self, file):
+		tmpData = [0] * 11
+		tmpData[0] = self.mins[0]
+		tmpData[1] = self.mins[1]
+		tmpData[2] = self.mins[2]
+		tmpData[3] = self.maxs[0]
+		tmpData[4] = self.maxs[1]
+		tmpData[5] = self.maxs[2]
+		tmpData[6] = self.localOrigin[0]
+		tmpData[7] = self.localOrigin[1]
+		tmpData[8] = self.localOrigin[2]
+		tmpData[9] = self.radius
+		tmpData[10] = self.name
+		data = struct.pack(self.binaryFormat, tmpData[0],tmpData[1],tmpData[2],tmpData[3],tmpData[4],tmpData[5],tmpData[6],tmpData[7], tmpData[8], tmpData[9], tmpData[10])
+		file.write(data)
+
+class md3Object:
+	# header structure
+	ident = ""			# this is used to identify the file (must be IDP3)
+	version = 0			# the version number of the file (Must be 15)
+	name = ""
+	flags = 0
+	numFrames = 0
+	numTags = 0
+	numSurfaces = 0
+	numSkins = 0
+	ofsFrames = 0
+	ofsTags = 0
+	ofsSurfaces = 0
+	ofsEnd = 0
+	frames = []
+	tags = []
+	surfaces = []
+
+	binaryFormat="<4si%ds9i" % MAX_QPATH  # little-endian (<), 17 integers (17i)
+
+	def __init__(self):
+		self.ident = 0
+		self.version = 0
+		self.name = ""
+		self.flags = 0
+		self.numFrames = 0
+		self.numTags = 0
+		self.numSurfaces = 0
+		self.numSkins = 0
+		self.ofsFrames = 0
+		self.ofsTags = 0
+		self.ofsSurfaces = 0
+		self.ofsEnd = 0
+		self.frames = []
+		self.tags = []
+		self.surfaces = []
+
+	def GetSize(self):
+		self.ofsFrames = struct.calcsize(self.binaryFormat)
+		self.ofsTags = self.ofsFrames
+		for f in self.frames:
+			self.ofsTags += f.GetSize()
+		self.ofsSurfaces += self.ofsTags
+		for t in self.tags:
+			self.ofsSurfaces += t.GetSize()
+		self.ofsEnd = self.ofsSurfaces
+		for s in self.surfaces:
+			self.ofsEnd += s.GetSize()
+		return self.ofsEnd
+		
+	def Save(self, file):
+		self.GetSize()
+		tmpData = [0] * 12
+		tmpData[0] = self.ident
+		tmpData[1] = self.version
+		tmpData[2] = self.name
+		tmpData[3] = self.flags
+		tmpData[4] = self.numFrames
+		tmpData[5] = self.numTags
+		tmpData[6] = self.numSurfaces
+		tmpData[7] = self.numSkins
+		tmpData[8] = self.ofsFrames
+		tmpData[9] = self.ofsTags
+		tmpData[10] = self.ofsSurfaces
+		tmpData[11] = self.ofsEnd
+
+		data = struct.pack(self.binaryFormat, tmpData[0],tmpData[1],tmpData[2],tmpData[3],tmpData[4],tmpData[5],tmpData[6],tmpData[7], tmpData[8], tmpData[9], tmpData[10], tmpData[11])
+		file.write(data)
+
+		for f in self.frames:
+			f.Save(file)
+			
+		for t in self.tags:
+			t.Save(file)
+			
+		for s in self.surfaces:
+			s.Save(file)
+
+
+def message(log,msg):
+  if log:
+    log.write(msg + "\n")
+  else:
+    print(msg)
+
+class md3Settings:
+  def __init__(self,
+               savepath,
+               name,
+               logpath,
+               overwrite=True,
+               dumpall=False,
+               ignoreuvs=False,
+               scale=1.0,
+               offsetx=0.0,
+               offsety=0.0,
+               offsetz=0.0):
+    self.savepath = savepath
+    self.name = name
+    self.logpath = logpath
+    self.overwrite = overwrite
+    self.dumpall = dumpall
+    self.ignoreuvs = ignoreuvs
+    self.scale = scale
+    self.offsetx = offsetx
+    self.offsety = offsety
+    self.offsetz = offsetz
+
+def print_md3(log,md3,dumpall):
+  message(log,"Header Information")
+  message(log,"Ident: " + str(md3.ident))
+  message(log,"Version: " + str(md3.version))
+  message(log,"Name: " + md3.name)
+  message(log,"Flags: " + str(md3.flags))
+  message(log,"Number of Frames: " + str(md3.numFrames))
+  message(log,"Number of Tags: " + str(md3.numTags))
+  message(log,"Number of Surfaces: " + str(md3.numSurfaces))
+  message(log,"Number of Skins: " + str(md3.numSkins))
+  message(log,"Offset Frames: " + str(md3.ofsFrames))
+  message(log,"Offset Tags: " + str(md3.ofsTags))
+  message(log,"Offset Surfaces: " + str(md3.ofsSurfaces))
+  message(log,"Offset end: " + str(md3.ofsEnd))
+  if dumpall:
+    message(log,"Frames:")
+    for f in md3.frames:
+      message(log," Mins: " + str(f.mins[0]) + " " + str(f.mins[1]) + " " + str(f.mins[2]))
+      message(log," Maxs: " + str(f.maxs[0]) + " " + str(f.maxs[1]) + " " + str(f.maxs[2]))
+      message(log," Origin(local): " + str(f.localOrigin[0]) + " " + str(f.localOrigin[1]) + " " + str(f.localOrigin[2]))
+      message(log," Radius: " + str(f.radius))
+      message(log," Name: " + f.name)
+
+    message(log,"Tags:")
+    for t in md3.tags:
+      message(log," Name: " + t.name)
+      message(log," Origin: " + str(t.origin[0]) + " " + str(t.origin[1]) + " " + str(t.origin[2]))
+      message(log," Axis[0]: " + str(t.axis[0]) + " " + str(t.axis[1]) + " " + str(t.axis[2]))
+      message(log," Axis[1]: " + str(t.axis[3]) + " " + str(t.axis[4]) + " " + str(t.axis[5]))
+      message(log," Axis[2]: " + str(t.axis[6]) + " " + str(t.axis[7]) + " " + str(t.axis[8]))
+
+    message(log,"Surfaces:")
+    for s in md3.surfaces:
+      message(log," Ident: " + s.ident)
+      message(log," Name: " + s.name)
+      message(log," Flags: " + str(s.flags))
+      message(log," # of Frames: " + str(s.numFrames))
+      message(log," # of Shaders: " + str(s.numShaders))
+      message(log," # of Verts: " + str(s.numVerts))
+      message(log," # of Triangles: " + str(s.numTriangles))
+      message(log," Offset Triangles: " + str(s.ofsTriangles))
+      message(log," Offset UVs: " + str(s.ofsUV))
+      message(log," Offset Verts: " + str(s.ofsVerts))
+      message(log," Offset End: " + str(s.ofsEnd))
+      message(log," Shaders:")
+      for shader in s.shaders:
+        message(log,"  Name: " + shader.name)
+        message(log,"  Index: " + str(shader.index))
+      message(log," Triangles:")
+      for tri in s.triangles:
+        message(log,"  Indexes: " + str(tri.indexes[0]) + " " + str(tri.indexes[1]) + " " + str(tri.indexes[2]))
+      message(log," UVs:")
+      for uv in s.uv:
+        message(log,"  U: " + str(uv.u))
+        message(log,"  V: " + str(uv.v)) 
+      message(log," Verts:")
+      for vert in s.verts:
+        message(log,"  XYZ: " + str(vert.xyz[0]) + " " + str(vert.xyz[1]) + " " + str(vert.xyz[2]))
+        message(log,"  Normal: " + str(vert.normal))
+
+  shader_count = 0
+  vert_count = 0
+  tri_count = 0
+  for surface in md3.surfaces:
+    shader_count += surface.numShaders
+    tri_count += surface.numTriangles
+    vert_count += surface.numVerts
+
+  if md3.numTags >= MD3_MAX_TAGS:
+    message(log,"!Warning: Tag limit reached! " + str(md3.numTags))
+  if md3.numSurfaces >= MD3_MAX_SURFACES:
+    message(log,"!Warning: Surface limit reached! " + str(md3.numSurfaces))
+  if md3.numFrames >= MD3_MAX_FRAMES:
+    message(log,"!Warning: Frame limit reached! " + str(md3.numFrames))
+  if shader_count >= MD3_MAX_SHADERS:
+    message(log,"!Warning: Shader limit reached! " + str(shader_count))
+  if vert_count >= MD3_MAX_VERTICES:
+    message(log,"!Warning: Vertex limit reached! " + str(vert_count))
+  if tri_count >= MD3_MAX_TRIANGLES:
+    message(log,"!Warning: Triangle limit reached! " + str(tri_count))
+
+def save_md3(settings):
+  if settings.logpath:
+    if settings.overwrite:
+      log = open(settings.logpath,"w")
+    else:
+      log = open(settings.logpath,"a")
+  else:
+    log = 0
+  message(log,"##########Exporting MD3##########")
+  bpy.ops.object.mode_set(mode='OBJECT')
+  md3 = md3Object()
+  md3.ident = MD3_IDENT
+  md3.version = MD3_VERSION
+  md3.name = settings.name
+  md3.numFrames = (bpy.context.scene.frame_end + 1) - bpy.context.scene.frame_start
+
+  for obj in bpy.context.selected_objects:
+    if obj.type == 'MESH':
+      nsurface = md3Surface()
+      nsurface.name = obj.name
+      nsurface.ident = MD3_IDENT
+ 
+      vertlist = []
+
+      for f,face in enumerate(obj.data.faces):
+        ntri = md3Triangle()
+        if len(face.verts) != 3:
+          message(log,"Found a nontriangle face in object " + obj.name)
+          continue
+
+        for v,vert_index in enumerate(face.verts):
+          uv_u = round(obj.data.active_uv_texture.data[f].uv[v][0],5)
+          uv_v = round(obj.data.active_uv_texture.data[f].uv[v][1],5)
+
+          match = 0
+          match_index = 0
+          for i,vi in enumerate(vertlist):
+            if vi == vert_index:
+              if settings.ignoreuvs:
+                match = 1#there is a uv match for all
+                match_index = i
+              else:
+                if nsurface.uv[i].u == uv_u and nsurface.uv[i].v == uv_v:
+                  match = 1
+                  match_index = i
+
+          if match == 0:
+            vertlist.append(vert_index)
+            ntri.indexes[v] = nsurface.numVerts
+            ntex = md3TexCoord()
+            ntex.u = uv_u
+            ntex.v = uv_v
+            nsurface.uv.append(ntex)
+            nsurface.numVerts += 1
+          else:
+            ntri.indexes[v] = match_index
+        nsurface.triangles.append(ntri)
+        nsurface.numTriangles += 1
+
+      if obj.data.active_uv_texture:
+        nshader = md3Shader()
+        nshader.name = obj.data.active_uv_texture.name
+        nshader.index = nsurface.numShaders
+        nsurface.shaders.append(nshader)
+        nsurface.numShaders += 1
+      if nsurface.numShaders < 1: #we should add a blank as a placeholder
+        nshader = md3Shader()
+        nshader.name = "NULL"
+        nsurface.shaders.append(nshader)
+        nsurface.numShaders += 1
+
+      for frame in range(bpy.context.scene.frame_start,bpy.context.scene.frame_end + 1):
+        bpy.context.scene.set_frame(frame)
+        fobj = obj.create_mesh(bpy.context.scene,True,'PREVIEW')
+        fobj.calc_normals()
+        nframe = md3Frame()
+        nframe.name = str(frame)
+        for vi in vertlist:
+            vert = fobj.verts[vi]
+            nvert = md3Vert()
+            nvert.xyz = vert.co * obj.matrix_world
+            nvert.xyz[0] = (round(nvert.xyz[0] + obj.matrix_world[3][0],5) * settings.scale) + settings.offsetx
+            nvert.xyz[1] = (round(nvert.xyz[1] + obj.matrix_world[3][1],5) * settings.scale) + settings.offsety
+            nvert.xyz[2] = (round(nvert.xyz[2] + obj.matrix_world[3][2],5) * settings.scale) + settings.offsetz
+            nvert.normal = nvert.Encode(vert.normal)
+            for i in range(0,3):
+              nframe.mins[i] = min(nframe.mins[i],nvert.xyz[i])
+              nframe.maxs[i] = max(nframe.maxs[i],nvert.xyz[i])
+            minlength = math.sqrt(math.pow(nframe.mins[0],2) + math.pow(nframe.mins[1],2) + math.pow(nframe.mins[2],2))
+            maxlength = math.sqrt(math.pow(nframe.maxs[0],2) + math.pow(nframe.maxs[1],2) + math.pow(nframe.maxs[2],2))
+            nframe.radius = round(max(minlength,maxlength),5)
+            nsurface.verts.append(nvert) 
+        md3.frames.append(nframe)
+        nsurface.numFrames += 1
+        bpy.data.meshes.remove(fobj)
+      md3.surfaces.append(nsurface)
+      md3.numSurfaces += 1
+
+    elif obj.type == 'EMPTY':
+      md3.numTags += 1
+      for frame in range(bpy.context.scene.frame_start,bpy.context.scene.frame_end + 1):
+        bpy.context.scene.set_frame(frame)
+        ntag = md3Tag()
+        ntag.origin[0] = (round(obj.matrix_world[3][0] * settings.scale,5)) + settings.offsetx
+        ntag.origin[1] = (round(obj.matrix_world[3][1] * settings.scale,5)) + settings.offsety
+        ntag.origin[2] = (round(obj.matrix_world[3][2] * settings.scale,5)) + settings.offsetz
+        ntag.axis[0] = obj.matrix_world[0][0]
+        ntag.axis[1] = obj.matrix_world[0][1]
+        ntag.axis[2] = obj.matrix_world[0][2]
+        ntag.axis[3] = obj.matrix_world[1][0]
+        ntag.axis[4] = obj.matrix_world[1][1]
+        ntag.axis[5] = obj.matrix_world[1][2]
+        ntag.axis[6] = obj.matrix_world[2][0]
+        ntag.axis[7] = obj.matrix_world[2][1]
+        ntag.axis[8] = obj.matrix_world[2][2]
+        md3.tags.append(ntag)
+  
+  if md3.numSurfaces < 1:
+    message(log,"Select a mesh to export!")
+    if log:
+      log.close()
+    return
+
+  file = open(settings.savepath, "wb")
+  md3.Save(file)
+  print_md3(log,md3,settings.dumpall)
+  file.close()
+
+  message(log,"MD3: " + settings.name + " saved to " + settings.savepath)
+  if log:
+    print("Logged to",settings.logpath)
+    log.close()
+
+from bpy.props import *
+class ExportMD3(bpy.types.Operator):
+  '''Export to Quake Model 3 (.md3)'''
+  bl_idname = "export.md3"
+  bl_label = 'Export MD3'
+
+  filepath = StringProperty(subtype = 'FILE_PATH',name="File Path", description="Filepath for exporting", maxlen= 1024, default= "")
+  md3name = StringProperty(name="MD3 Name", description="MD3 header name / skin path (64 bytes)",maxlen=64,default="")
+  md3log = StringProperty(name="MD3 Log", description="MD3 log file path",maxlen=1024,default="export_md3.log")
+  md3overwritelog = BoolProperty(name="Overwrite log", description="Overwrite log (off == append)", default=True)
+  md3dumpall = BoolProperty(name="Dump all", description="Dump all data for md3 to log",default=False)
+  md3ignoreuvs = BoolProperty(name="Ignore UVs", description="Ignores uv influence on mesh generation. Use if uv map not made.",default=False)
+  md3scale = FloatProperty(name="Scale", description="Scale all objects from world origin (0,0,0)",default=1.0,precision=5)
+  md3offsetx = FloatProperty(name="Offset X", description="Transition scene along x axis",default=0.0,precision=5)
+  md3offsety = FloatProperty(name="Offset Y", description="Transition scene along y axis",default=0.0,precision=5)
+  md3offsetz = FloatProperty(name="Offset Z", description="Transition scene along z axis",default=0.0,precision=5)
+
+  def execute(self, context):
+   settings = md3Settings(savepath = self.properties.filepath,
+                          name = self.properties.md3name,
+                          logpath = self.properties.md3log,
+                          overwrite = self.properties.md3overwritelog,
+                          dumpall = self.properties.md3dumpall,
+                          ignoreuvs = self.properties.md3ignoreuvs,
+                          scale = self.properties.md3scale,
+                          offsetx = self.properties.md3offsetx,
+                          offsety = self.properties.md3offsety,
+                          offsetz = self.properties.md3offsetz)
+   save_md3(settings)
+   return {'FINISHED'}
+
+  def invoke(self, context, event):
+    wm = context.manager
+    wm.add_fileselect(self)
+    return {'RUNNING_MODAL'}
+
+  def poll(self, context):
+    return context.active_object != None
+
+def menu_func(self, context):
+  newpath = os.path.splitext(bpy.context.main.filepath)[0] + ".md3"
+  self.layout.operator(ExportMD3.bl_idname, text="Quake Model 3 (.md3)").filepath = newpath 
+
+def register():
+  bpy.types.register(ExportMD3)
+  bpy.types.INFO_MT_file_export.append(menu_func)
+
+def unregister():
+  bpy.types.unregister(ExportMD3)
+  bpy.types.INFO_MT_file_export.remove(menu_func)
+
+if __name__ == "__main__":
+  register()
\ No newline at end of file