export_fbx.py

        fw('\n\t\t\tProperty: "DecayType", "enum", "",0')
        fw('\n\t\t\tProperty: "DecayStart", "double", "",%.2f' % light.distance)

        fw('\n\t\t\tProperty: "EnableNearAttenuation", "bool", "",0'
           '\n\t\t\tProperty: "NearAttenuationStart", "double", "",0'
           '\n\t\t\tProperty: "NearAttenuationEnd", "double", "",0'
           '\n\t\t\tProperty: "EnableFarAttenuation", "bool", "",0'
           '\n\t\t\tProperty: "FarAttenuationStart", "double", "",0'
           '\n\t\t\tProperty: "FarAttenuationEnd", "double", "",0'
           )

        fw('\n\t\t\tProperty: "CastShadows", "bool", "",%i' % do_shadow)
        fw('\n\t\t\tProperty: "ShadowColor", "ColorRGBA", "",0,0,0,1')
        fw('\n\t\t}')

        fw('\n\t\tMultiLayer: 0'
           '\n\t\tMultiTake: 0'
           '\n\t\tShading: Y'
           '\n\t\tCulling: "CullingOff"'
           '\n\t\tTypeFlags: "Light"'
           '\n\t\tGeometryVersion: 124'
           '\n\t}'
           )

    # matrixOnly is not used at the moment
    def write_null(my_null=None, fbxName=None, fbxType="Null", fbxTypeFlags="Null"):
        # ob can be null
        if not fbxName:
            fbxName = my_null.fbxName

        fw('\n\tModel: "Model::%s", "%s" {' % (fbxName, fbxType))
        fw('\n\t\tVersion: 232')

        if my_null:
            poseMatrix = write_object_props(my_null.blenObject, None, my_null.parRelMatrix())[3]
        else:
            poseMatrix = write_object_props()[3]

        pose_items.append((fbxName, poseMatrix))

        fw('\n\t\t}'
           '\n\t\tMultiLayer: 0'
           '\n\t\tMultiTake: 1'
           '\n\t\tShading: Y'
           '\n\t\tCulling: "CullingOff"'
           )

        fw('\n\t\tTypeFlags: "%s"' % fbxTypeFlags)
        fw('\n\t}')

    # Material Settings
    if world:
        world_amb = world.ambient_color[:]
    else:
        world_amb = 0.0, 0.0, 0.0  # default value

    def write_material(matname, mat):
        fw('\n\tMaterial: "Material::%s", "" {' % matname)

        # Todo, add more material Properties.
        if mat:
            mat_cold = tuple(mat.diffuse_color)
            mat_cols = tuple(mat.specular_color)
            #mat_colm = tuple(mat.mirCol) # we wont use the mirror color
            mat_colamb = world_amb

            mat_dif = mat.diffuse_intensity
            mat_amb = mat.ambient
            mat_hard = (float(mat.specular_hardness) - 1.0) / 5.10
            mat_spec = mat.specular_intensity / 2.0
            mat_alpha = mat.alpha
            mat_emit = mat.emit
            mat_shadeless = mat.use_shadeless
            if mat_shadeless:
                mat_shader = 'Lambert'
            else:
                if mat.diffuse_shader == 'LAMBERT':
                    mat_shader = 'Lambert'
                else:
                    mat_shader = 'Phong'
        else:
            mat_cols = mat_cold = 0.8, 0.8, 0.8
            mat_colamb = 0.0, 0.0, 0.0
            # mat_colm
            mat_dif = 1.0
            mat_amb = 0.5
            mat_hard = 20.0
            mat_spec = 0.2
            mat_alpha = 1.0
            mat_emit = 0.0
            mat_shadeless = False
            mat_shader = 'Phong'

        fw('\n\t\tVersion: 102')
        fw('\n\t\tShadingModel: "%s"' % mat_shader.lower())
        fw('\n\t\tMultiLayer: 0')

        fw('\n\t\tProperties60:  {')
        fw('\n\t\t\tProperty: "ShadingModel", "KString", "", "%s"' % mat_shader)
        fw('\n\t\t\tProperty: "MultiLayer", "bool", "",0')
        fw('\n\t\t\tProperty: "EmissiveColor", "ColorRGB", "",%.4f,%.4f,%.4f' % mat_cold)  # emit and diffuse color are he same in blender
        fw('\n\t\t\tProperty: "EmissiveFactor", "double", "",%.4f' % mat_emit)

        fw('\n\t\t\tProperty: "AmbientColor", "ColorRGB", "",%.4f,%.4f,%.4f' % mat_colamb)
        fw('\n\t\t\tProperty: "AmbientFactor", "double", "",%.4f' % mat_amb)
        fw('\n\t\t\tProperty: "DiffuseColor", "ColorRGB", "",%.4f,%.4f,%.4f' % mat_cold)
        fw('\n\t\t\tProperty: "DiffuseFactor", "double", "",%.4f' % mat_dif)
        fw('\n\t\t\tProperty: "Bump", "Vector3D", "",0,0,0')
        fw('\n\t\t\tProperty: "TransparentColor", "ColorRGB", "",1,1,1')
        fw('\n\t\t\tProperty: "TransparencyFactor", "double", "",%.4f' % (1.0 - mat_alpha))
        if not mat_shadeless:
            fw('\n\t\t\tProperty: "SpecularColor", "ColorRGB", "",%.4f,%.4f,%.4f' % mat_cols)
            fw('\n\t\t\tProperty: "SpecularFactor", "double", "",%.4f' % mat_spec)
            fw('\n\t\t\tProperty: "ShininessExponent", "double", "",80.0')
            fw('\n\t\t\tProperty: "ReflectionColor", "ColorRGB", "",0,0,0')
            fw('\n\t\t\tProperty: "ReflectionFactor", "double", "",1')
        fw('\n\t\t\tProperty: "Emissive", "ColorRGB", "",0,0,0')
        fw('\n\t\t\tProperty: "Ambient", "ColorRGB", "",%.1f,%.1f,%.1f' % mat_colamb)
        fw('\n\t\t\tProperty: "Diffuse", "ColorRGB", "",%.1f,%.1f,%.1f' % mat_cold)
        if not mat_shadeless:
            fw('\n\t\t\tProperty: "Specular", "ColorRGB", "",%.1f,%.1f,%.1f' % mat_cols)
            fw('\n\t\t\tProperty: "Shininess", "double", "",%.1f' % mat_hard)
        fw('\n\t\t\tProperty: "Opacity", "double", "",%.1f' % mat_alpha)
        if not mat_shadeless:
            fw('\n\t\t\tProperty: "Reflectivity", "double", "",0')

        fw('\n\t\t}')
        fw('\n\t}')

    # tex is an Image (Arystan)
    def write_video(texname, tex):
        # Same as texture really!
        fw('\n\tVideo: "Video::%s", "Clip" {' % texname)

        fw('''
		Type: "Clip"
		Properties60:  {
			Property: "FrameRate", "double", "",0
			Property: "LastFrame", "int", "",0
			Property: "Width", "int", "",0
			Property: "Height", "int", "",0''')
        if tex:
            fname_rel = bpy_extras.io_utils.path_reference(tex.filepath, base_src, base_dst, path_mode, "", copy_set)
            fname_strip = bpy.path.basename(fname_rel)
        else:
            fname_strip = fname_rel = ""

        fw('\n\t\t\tProperty: "Path", "charptr", "", "%s"' % fname_strip)

        fw('''
			Property: "StartFrame", "int", "",0
			Property: "StopFrame", "int", "",0
			Property: "PlaySpeed", "double", "",1
			Property: "Offset", "KTime", "",0
			Property: "InterlaceMode", "enum", "",0
			Property: "FreeRunning", "bool", "",0
			Property: "Loop", "bool", "",0
			Property: "AccessMode", "enum", "",0
		}
		UseMipMap: 0''')

        fw('\n\t\tFilename: "%s"' % fname_strip)
        fw('\n\t\tRelativeFilename: "%s"' % fname_rel)  # make relative
        fw('\n\t}')

    def write_texture(texname, tex, num):
        # if tex is None then this is a dummy tex
        fw('\n\tTexture: "Texture::%s", "TextureVideoClip" {' % texname)
        fw('\n\t\tType: "TextureVideoClip"')
        fw('\n\t\tVersion: 202')
        # TODO, rare case _empty_ exists as a name.
        fw('\n\t\tTextureName: "Texture::%s"' % texname)

        fw('''
		Properties60:  {
			Property: "Translation", "Vector", "A+",0,0,0
			Property: "Rotation", "Vector", "A+",0,0,0
			Property: "Scaling", "Vector", "A+",1,1,1''')
        fw('\n\t\t\tProperty: "Texture alpha", "Number", "A+",%i' % num)

        # WrapModeU/V 0==rep, 1==clamp, TODO add support
        fw('''
			Property: "TextureTypeUse", "enum", "",0
			Property: "CurrentTextureBlendMode", "enum", "",1
			Property: "UseMaterial", "bool", "",0
			Property: "UseMipMap", "bool", "",0
			Property: "CurrentMappingType", "enum", "",0
			Property: "UVSwap", "bool", "",0''')

        fw('\n\t\t\tProperty: "WrapModeU", "enum", "",%i' % tex.use_clamp_x)
        fw('\n\t\t\tProperty: "WrapModeV", "enum", "",%i' % tex.use_clamp_y)

        fw('''
			Property: "TextureRotationPivot", "Vector3D", "",0,0,0
			Property: "TextureScalingPivot", "Vector3D", "",0,0,0
			Property: "VideoProperty", "object", ""
		}''')

        fw('\n\t\tMedia: "Video::%s"' % texname)

        if tex:
            fname_rel = bpy_extras.io_utils.path_reference(tex.filepath, base_src, base_dst, path_mode, "", copy_set)
            fname_strip = bpy.path.basename(bpy.path.abspath(fname_rel))
        else:
            fname_strip = fname_rel = ""

        fw('\n\t\tFileName: "%s"' % fname_strip)
        fw('\n\t\tRelativeFilename: "%s"' % fname_rel)  # need some make relative command

        fw('''
		ModelUVTranslation: 0,0
		ModelUVScaling: 1,1
		Texture_Alpha_Source: "None"
		Cropping: 0,0,0,0
	}''')

    def write_deformer_skin(obname):
        '''
        Each mesh has its own deformer
        '''
        fw('\n\tDeformer: "Deformer::Skin %s", "Skin" {' % obname)
        fw('''
		Version: 100
		MultiLayer: 0
		Type: "Skin"
		Properties60:  {
		}
		Link_DeformAcuracy: 50
	}''')

    # in the example was 'Bip01 L Thigh_2'
    def write_sub_deformer_skin(my_mesh, my_bone, weights):

        '''
        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

        Its possible that there is no matching vgroup in this mesh, in that case no verts are in the subdeformer,
        a but silly but dosnt really matter
        '''
        fw('\n\tDeformer: "SubDeformer::Cluster %s %s", "Cluster" {' % (my_mesh.fbxName, my_bone.fbxName))

        fw('''
		Version: 100
		MultiLayer: 0
		Type: "Cluster"
		Properties60:  {
			Property: "SrcModel", "object", ""
			Property: "SrcModelReference", "object", ""
		}
		UserData: "", ""''')

        # Support for bone parents
        if my_mesh.fbxBoneParent:
            if my_mesh.fbxBoneParent == my_bone:
                # TODO - this is a bit lazy, we could have a simple write loop
                # for this case because all weights are 1.0 but for now this is ok
                # Parent Bones arent used all that much anyway.
                vgroup_data = [(j, 1.0) for j in range(len(my_mesh.blenData.vertices))]
            else:
                # This bone is not a parent of this mesh object, no weights
                vgroup_data = []

        else:
            # Normal weight painted mesh
            if my_bone.blenName in weights[0]:
                # Before we used normalized weight list
                group_index = weights[0].index(my_bone.blenName)
                vgroup_data = [(j, weight[group_index]) for j, weight in enumerate(weights[1]) if weight[group_index]]
            else:
                vgroup_data = []

        fw('\n\t\tIndexes: ')

        i = -1
        for vg in vgroup_data:
            if i == -1:
                fw('%i' % vg[0])
                i = 0
            else:
                if i == 23:
                    fw('\n\t\t')
                    i = 0
                fw(',%i' % vg[0])
            i += 1

        fw('\n\t\tWeights: ')
        i = -1
        for vg in vgroup_data:
            if i == -1:
                fw('%.8f' % vg[1])
                i = 0
            else:
                if i == 38:
                    fw('\n\t\t')
                    i = 0
                fw(',%.8f' % vg[1])
            i += 1

        if my_mesh.fbxParent:
            # TODO FIXME, this case is broken in some cases. skinned meshes just shouldnt have parents where possible!
            m = (my_mesh.matrixWorld.inverted() * my_bone.fbxArm.matrixWorld.copy() * my_bone.restMatrix) * mtx4_z90
        else:
            # Yes! this is it...  - but dosnt work when the mesh is a.
            m = (my_mesh.matrixWorld.inverted() * my_bone.fbxArm.matrixWorld.copy() * my_bone.restMatrix) * mtx4_z90

        #m = mtx4_z90 * my_bone.restMatrix
        matstr = mat4x4str(m)
        matstr_i = mat4x4str(m.inverted())

        fw('\n\t\tTransform: %s' % matstr_i)  # THIS IS __NOT__ THE GLOBAL MATRIX AS DOCUMENTED :/
        fw('\n\t\tTransformLink: %s' % matstr)
        fw('\n\t}')

    def write_mesh(my_mesh):

        me = my_mesh.blenData

        # if there are non NULL materials on this mesh
        do_materials = bool(my_mesh.blenMaterials)
        do_textures = bool(my_mesh.blenTextures)
        do_uvs = bool(me.uv_textures)

        fw('\n\tModel: "Model::%s", "Mesh" {' % my_mesh.fbxName)
        fw('\n\t\tVersion: 232')  # newline is added in write_object_props

        # convert into lists once.
        me_vertices = me.vertices[:]
        me_edges = me.edges[:] if use_mesh_edges else ()
        me_faces = me.faces[:]

        poseMatrix = write_object_props(my_mesh.blenObject, None, my_mesh.parRelMatrix())[3]
        pose_items.append((my_mesh.fbxName, poseMatrix))

        fw('\n\t\t}')

        fw('\n\t\tMultiLayer: 0'
           '\n\t\tMultiTake: 1'
           '\n\t\tShading: Y'
           '\n\t\tCulling: "CullingOff"'
           )

        # Write the Real Mesh data here
        fw('\n\t\tVertices: ')
        i = -1

        for v in me_vertices:
            if i == -1:
                fw('%.6f,%.6f,%.6f' % v.co[:])
                i = 0
            else:
                if i == 7:
                    fw('\n\t\t')
                    i = 0
                fw(',%.6f,%.6f,%.6f' % v.co[:])
            i += 1

        fw('\n\t\tPolygonVertexIndex: ')
        i = -1
        for f in me_faces:
            fi = f.vertices[:]

            # last index XORd w. -1 indicates end of face
            if i == -1:
                if len(fi) == 3:
                    fw('%i,%i,%i' % (fi[0], fi[1], fi[2] ^ -1))
                else:
                    fw('%i,%i,%i,%i' % (fi[0], fi[1], fi[2], fi[3] ^ -1))
                i = 0
            else:
                if i == 13:
                    fw('\n\t\t')
                    i = 0
                if len(fi) == 3:
                    fw(',%i,%i,%i' % (fi[0], fi[1], fi[2] ^ -1))
                else:
                    fw(',%i,%i,%i,%i' % (fi[0], fi[1], fi[2], fi[3] ^ -1))
            i += 1

        # write loose edges as faces.
        for ed in me_edges:
            if ed.is_loose:
                ed_val = ed.vertices[:]
                ed_val = ed_val[0], ed_val[-1] ^ -1

                if i == -1:
                    fw('%i,%i' % ed_val)
                    i = 0
                else:
                    if i == 13:
                        fw('\n\t\t')
                        i = 0
                    fw(',%i,%i' % ed_val)
            i += 1

        fw('\n\t\tEdges: ')
        i = -1
        for ed in me_edges:
                if i == -1:
                    fw('%i,%i' % (ed.vertices[0], ed.vertices[1]))
                    i = 0
                else:
                    if i == 13:
                        fw('\n\t\t')
                        i = 0
                    fw(',%i,%i' % (ed.vertices[0], ed.vertices[1]))
                i += 1

        fw('\n\t\tGeometryVersion: 124')

        fw('''
		LayerElementNormal: 0 {
			Version: 101
			Name: ""
			MappingInformationType: "ByVertice"
			ReferenceInformationType: "Direct"
			Normals: ''')

        i = -1
        for v in me_vertices:
            if i == -1:
                fw('%.15f,%.15f,%.15f' % v.normal[:])
                i = 0
            else:
                if i == 2:
                    fw('\n\t\t\t ')
                    i = 0
                fw(',%.15f,%.15f,%.15f' % v.normal[:])
            i += 1
        fw('\n\t\t}')

        # Write Face Smoothing
        if mesh_smooth_type == 'FACE':
            fw('''
		LayerElementSmoothing: 0 {
			Version: 102
			Name: ""
			MappingInformationType: "ByPolygon"
			ReferenceInformationType: "Direct"
			Smoothing: ''')

            i = -1
            for f in me_faces:
                if i == -1:
                    fw('%i' % f.use_smooth)
                    i = 0
                else:
                    if i == 54:
                        fw('\n\t\t\t ')
                        i = 0
                    fw(',%i' % f.use_smooth)
                i += 1

            fw('\n\t\t}')

        elif mesh_smooth_type == 'EDGE':
            # Write Edge Smoothing
            fw('''
		LayerElementSmoothing: 0 {
			Version: 101
			Name: ""
			MappingInformationType: "ByEdge"
			ReferenceInformationType: "Direct"
			Smoothing: ''')

            i = -1
            for ed in me_edges:
                if i == -1:
                    fw('%i' % (ed.use_edge_sharp))
                    i = 0
                else:
                    if i == 54:
                        fw('\n\t\t\t ')
                        i = 0
                    fw(',%i' % ed.use_edge_sharp)
                i += 1

            fw('\n\t\t}')
        elif mesh_smooth_type == 'OFF':
            pass
        else:
            raise Exception("invalid mesh_smooth_type: %r" % mesh_smooth_type)

        # Write VertexColor Layers
        # note, no programs seem to use this info :/
        collayers = []
        if len(me.vertex_colors):
            collayers = me.vertex_colors
            for colindex, collayer in enumerate(collayers):
                fw('\n\t\tLayerElementColor: %i {' % colindex)
                fw('\n\t\t\tVersion: 101')
                fw('\n\t\t\tName: "%s"' % collayer.name)

                fw('''
			MappingInformationType: "ByPolygonVertex"
			ReferenceInformationType: "IndexToDirect"
			Colors: ''')

                i = -1
                ii = 0  # Count how many Colors we write

                for fi, cf in enumerate(collayer.data):
                    if len(me_faces[fi].vertices) == 4:
                        colors = cf.color1[:], cf.color2[:], cf.color3[:], cf.color4[:]
                    else:
                        colors = cf.color1[:], cf.color2[:], cf.color3[:]

                    for col in colors:
                        if i == -1:
                            fw('%.4f,%.4f,%.4f,1' % col)
                            i = 0
                        else:
                            if i == 7:
                                fw('\n\t\t\t\t')
                                i = 0
                            fw(',%.4f,%.4f,%.4f,1' % col)
                        i += 1
                        ii += 1  # One more Color

                fw('\n\t\t\tColorIndex: ')
                i = -1
                for j in range(ii):
                    if i == -1:
                        fw('%i' % j)
                        i = 0
                    else:
                        if i == 55:
                            fw('\n\t\t\t\t')
                            i = 0
                        fw(',%i' % j)
                    i += 1

                fw('\n\t\t}')

        # Write UV and texture layers.
        uvlayers = []
        if do_uvs:
            uvlayers = me.uv_textures
            for uvindex, uvlayer in enumerate(me.uv_textures):
                fw('\n\t\tLayerElementUV: %i {' % uvindex)
                fw('\n\t\t\tVersion: 101')
                fw('\n\t\t\tName: "%s"' % uvlayer.name)

                fw('''
			MappingInformationType: "ByPolygonVertex"
			ReferenceInformationType: "IndexToDirect"
			UV: ''')

                i = -1
                ii = 0  # Count how many UVs we write

                for uf in uvlayer.data:
                    # workaround, since uf.uv iteration is wrong atm
                    for uv in uf.uv:
                        if i == -1:
                            fw('%.6f,%.6f' % uv[:])
                            i = 0
                        else:
                            if i == 7:
                                fw('\n\t\t\t ')
                                i = 0
                            fw(',%.6f,%.6f' % uv[:])
                        i += 1
                        ii += 1  # One more UV

                fw('\n\t\t\tUVIndex: ')
                i = -1
                for j in range(ii):
                    if i == -1:
                        fw('%i' % j)
                        i = 0
                    else:
                        if i == 55:
                            fw('\n\t\t\t\t')
                            i = 0
                        fw(',%i' % j)
                    i += 1

                fw('\n\t\t}')

                if do_textures:
                    fw('\n\t\tLayerElementTexture: %i {' % uvindex)
                    fw('\n\t\t\tVersion: 101')
                    fw('\n\t\t\tName: "%s"' % uvlayer.name)

                    if len(my_mesh.blenTextures) == 1:
                        fw('\n\t\t\tMappingInformationType: "AllSame"')
                    else:
                        fw('\n\t\t\tMappingInformationType: "ByPolygon"')

                    fw('\n\t\t\tReferenceInformationType: "IndexToDirect"')
                    fw('\n\t\t\tBlendMode: "Translucent"')
                    fw('\n\t\t\tTextureAlpha: 1')
                    fw('\n\t\t\tTextureId: ')

                    if len(my_mesh.blenTextures) == 1:
                        fw('0')
                    else:
                        texture_mapping_local = {None: -1}

                        i = 0  # 1 for dummy
                        for tex in my_mesh.blenTextures:
                            if tex:  # None is set above
                                texture_mapping_local[tex] = i
                                i += 1

                        i = -1
                        for f in uvlayer.data:
                            img_key = f.image

                            if i == -1:
                                i = 0
                                fw('%s' % texture_mapping_local[img_key])
                            else:
                                if i == 55:
                                    fw('\n			 ')
                                    i = 0

                                fw(',%s' % texture_mapping_local[img_key])
                            i += 1

                else:
                    fw('''
		LayerElementTexture: 0 {
			Version: 101
			Name: ""
			MappingInformationType: "NoMappingInformation"
			ReferenceInformationType: "IndexToDirect"
			BlendMode: "Translucent"
			TextureAlpha: 1
			TextureId: ''')
                fw('\n\t\t}')

        # Done with UV/textures.
        if do_materials:
            fw('\n\t\tLayerElementMaterial: 0 {')
            fw('\n\t\t\tVersion: 101')
            fw('\n\t\t\tName: ""')

            if len(my_mesh.blenMaterials) == 1:
                fw('\n\t\t\tMappingInformationType: "AllSame"')
            else:
                fw('\n\t\t\tMappingInformationType: "ByPolygon"')

            fw('\n\t\t\tReferenceInformationType: "IndexToDirect"')
            fw('\n\t\t\tMaterials: ')

            if len(my_mesh.blenMaterials) == 1:
                fw('0')
            else:
                # Build a material mapping for this
                material_mapping_local = {}  # local-mat & tex : global index.

                for j, mat_tex_pair in enumerate(my_mesh.blenMaterials):
                    material_mapping_local[mat_tex_pair] = j

                mats = my_mesh.blenMaterialList

                if me.uv_textures.active:
                    uv_faces = me.uv_textures.active.data
                else:
                    uv_faces = [None] * len(me_faces)

                i = -1
                for f, uf in zip(me_faces, uv_faces):
                    try:
                        mat = mats[f.material_index]
                    except:
                        mat = None

                    if do_uvs:
                        tex = uf.image  # WARNING - MULTI UV LAYER IMAGES NOT SUPPORTED :/
                    else:
                        tex = None

                    if i == -1:
                        i = 0
                        fw('%s' % material_mapping_local[mat, tex])  # None for mat or tex is ok
                    else:
                        if i == 55:
                            fw('\n\t\t\t\t')
                            i = 0

                        fw(',%s' % material_mapping_local[mat, tex])
                    i += 1

            fw('\n\t\t}')

        fw('''
		Layer: 0 {
			Version: 100
			LayerElement:  {
				Type: "LayerElementNormal"
				TypedIndex: 0
			}''')

        if do_materials:
            fw('''
			LayerElement:  {
				Type: "LayerElementMaterial"
				TypedIndex: 0
			}''')

        # Smoothing info
        if mesh_smooth_type != 'OFF':
            fw('''
			LayerElement:  {
				Type: "LayerElementSmoothing"
				TypedIndex: 0
			}''')

        # Always write this
        if do_textures:
            fw('''
			LayerElement:  {
				Type: "LayerElementTexture"
				TypedIndex: 0
			}''')

        if me.vertex_colors:
            fw('''
			LayerElement:  {
				Type: "LayerElementColor"
				TypedIndex: 0
			}''')

        if do_uvs:  # same as me.faceUV
            fw('''
			LayerElement:  {
				Type: "LayerElementUV"
				TypedIndex: 0
			}''')

        fw('\n\t\t}')

        if len(uvlayers) > 1:
            for i in range(1, len(uvlayers)):

                fw('\n\t\tLayer: %i {' % i)
                fw('\n\t\t\tVersion: 100')

                fw('''
			LayerElement:  {
				Type: "LayerElementUV"''')

                fw('\n\t\t\t\tTypedIndex: %i' % i)
                fw('\n\t\t\t}')

                if do_textures:

                    fw('''
			LayerElement:  {
				Type: "LayerElementTexture"''')

                    fw('\n\t\t\t\tTypedIndex: %i' % i)
                    fw('\n\t\t\t}')

                fw('\n\t\t}')

        if len(collayers) > 1:
            # Take into account any UV layers
            layer_offset = 0
            if uvlayers:
                layer_offset = len(uvlayers) - 1

            for i in range(layer_offset, len(collayers) + layer_offset):
                fw('\n\t\tLayer: %i {' % i)
                fw('\n\t\t\tVersion: 100')

                fw('''
			LayerElement:  {
				Type: "LayerElementColor"''')

                fw('\n\t\t\t\tTypedIndex: %i' % i)
                fw('\n\t\t\t}')
                fw('\n\t\t}')
        fw('\n\t}')

    def write_group(name):
        fw('\n\tGroupSelection: "GroupSelection::%s", "Default" {' % name)

        fw('''
		Properties60:  {
			Property: "MultiLayer", "bool", "",0
			Property: "Pickable", "bool", "",1
			Property: "Transformable", "bool", "",1
			Property: "Show", "bool", "",1
		}
		MultiLayer: 0
	}''')

    # add meshes here to clear because they are not used anywhere.
    meshes_to_clear = []

    ob_meshes = []
    ob_lights = []
    ob_cameras = []
    # in fbx we export bones as children of the mesh
    # armatures not a part of a mesh, will be added to ob_arms
    ob_bones = []
    ob_arms = []
    ob_null = []  # emptys

    # List of types that have blender objects (not bones)
    ob_all_typegroups = [ob_meshes, ob_lights, ob_cameras, ob_arms, ob_null]

    groups = []  # blender groups, only add ones that have objects in the selections
    materials = {}  # (mat, image) keys, should be a set()
    textures = {}  # should be a set()

    tmp_ob_type = None  # incase no objects are exported, so as not to raise an error

## XXX

    if 'ARMATURE' in object_types:
        # This is needed so applying modifiers dosnt apply the armature deformation, its also needed
        # ...so mesh objects return their rest worldspace matrix when bone-parents are exported as weighted meshes.
        # set every armature to its rest, backup the original values so we done mess up the scene
        ob_arms_orig_rest = [arm.pose_position for arm in bpy.data.armatures]

        for arm in bpy.data.armatures:
            arm.pose_position = 'REST'

        if ob_arms_orig_rest:
            for ob_base in bpy.data.objects:
                if ob_base.type == 'ARMATURE':
                    ob_base.update_tag()

            # This causes the makeDisplayList command to effect the mesh
            scene.frame_set(scene.frame_current)

    for ob_base in context_objects:

        # ignore dupli children
        if ob_base.parent and ob_base.parent.dupli_type in {'VERTS', 'FACES'}:
            continue

        obs = [(ob_base, ob_base.matrix_world.copy())]
        if ob_base.dupli_type != 'NONE':
            ob_base.dupli_list_create(scene)
            obs = [(dob.object, dob.matrix.copy()) for dob in ob_base.dupli_list]

        for ob, mtx in obs:
            tmp_ob_type = ob.type
            if tmp_ob_type == 'CAMERA':
                if 'CAMERA' in object_types:
                    ob_cameras.append(my_object_generic(ob, mtx))
            elif tmp_ob_type == 'LAMP':
                if 'LAMP' in object_types:
                    ob_lights.append(my_object_generic(ob, mtx))
            elif tmp_ob_type == 'ARMATURE':
                if 'ARMATURE' in object_types:
                    # TODO - armatures dont work in dupligroups!
                    if ob not in ob_arms:
                        ob_arms.append(ob)
                    # ob_arms.append(ob) # replace later. was "ob_arms.append(sane_obname(ob), ob)"
            elif tmp_ob_type == 'EMPTY':
                if 'EMPTY' in object_types:
                    ob_null.append(my_object_generic(ob, mtx))
            elif 'MESH' in object_types:
                origData = True
                if tmp_ob_type != 'MESH':
                    try:
                        me = ob.to_mesh(scene, True, 'PREVIEW')
                    except:
                        me = None

                    if me:
                        meshes_to_clear.append(me)
                        mats = me.materials
                        origData = False
                else:
                    # Mesh Type!
                    if use_mesh_modifiers:
                        me = ob.to_mesh(scene, True, 'PREVIEW')

                        # print ob, me, me.getVertGroupNames()
                        meshes_to_clear.append(me)
                        origData = False
                        mats = me.materials
                    else:
                        me = ob.data
                        mats = me.materials

# 						# Support object colors
# 						tmp_colbits = ob.colbits
# 						if tmp_colbits:
# 							tmp_ob_mats = ob.getMaterials(1) # 1 so we get None's too.
# 							for i in xrange(16):
# 								if tmp_colbits & (1<<i):
# 									mats[i] = tmp_ob_mats[i]
# 							del tmp_ob_mats
# 						del tmp_colbits

                if me:
# 					# This WILL modify meshes in blender if use_mesh_modifiers is disabled.
# 					# so strictly this is bad. but only in rare cases would it have negative results
# 					# say with dupliverts the objects would rotate a bit differently
# 					if EXP_MESH_HQ_NORMALS:
# 						BPyMesh.meshCalcNormals(me) # high quality normals nice for realtime engines.

                    texture_mapping_local = {}
                    material_mapping_local = {}
                    if me.uv_textures:
                        for uvlayer in me.uv_textures:
                            for f, uf in zip(me.faces, uvlayer.data):
                                tex = uf.image
                                textures[tex] = texture_mapping_local[tex] = None

                                try:
                                    mat = mats[f.material_index]
                                except:
                                    mat = None

                                materials[mat, tex] = material_mapping_local[mat, tex] = None  # should use sets, wait for blender 2.5

                    else:
                        for mat in mats:
                            # 2.44 use mat.lib too for uniqueness
                            materials[mat, None] = material_mapping_local[mat, None] = None
                        else:
                            materials[None, None] = None

                    if 'ARMATURE' in object_types:
                        armob = ob.find_armature()
                        blenParentBoneName = None

                        # parent bone - special case
                        if (not armob) and ob.parent and ob.parent.type == 'ARMATURE' and \
                                ob.parent_type == 'BONE':
                            armob = ob.parent
                            blenParentBoneName = ob.parent_bone

                        if armob and armob not in ob_arms:
                            ob_arms.append(armob)

                        # Warning for scaled, mesh objects with armatures
                        if abs(ob.scale[0] - 1.0) > 0.05 or abs(ob.scale[1] - 1.0) > 0.05 or abs(ob.scale[1] - 1.0) > 0.05:
                            operator.report({'WARNING'}, "Object '%s' has a scale of (%.3f, %.3f, %.3f), " \
                                                         "Armature deformation will not work as expected " \
                                                         "(apply Scale to fix)" % ((ob.name,) + tuple(ob.scale)))

                    else:
                        blenParentBoneName = armob = None

                    my_mesh = my_object_generic(ob, mtx)
                    my_mesh.blenData = me
                    my_mesh.origData = origData
                    my_mesh.blenMaterials = list(material_mapping_local.keys())
                    my_mesh.blenMaterialList = mats
                    my_mesh.blenTextures = list(texture_mapping_local.keys())

                    # sort the name so we get predictable output, some items may be NULL
                    my_mesh.blenMaterials.sort(key=lambda m: (getattr(m[0], "name", ""), getattr(m[1], "name", "")))
                    my_mesh.blenTextures.sort(key=lambda m: getattr(m, "name", ""))

                    # if only 1 null texture then empty the list
                    if len(my_mesh.blenTextures) == 1 and my_mesh.blenTextures[0] is None:
                        my_mesh.blenTextures = []

                    my_mesh.fbxArm = armob  # replace with my_object_generic armature instance later
                    my_mesh.fbxBoneParent = blenParentBoneName  # replace with my_bone instance later

                    ob_meshes.append(my_mesh)

        # not forgetting to free dupli_list
        if ob_base.dupli_list:
            ob_base.dupli_list_clear()

    if 'ARMATURE' in object_types:
        # now we have the meshes, restore the rest arm position
        for i, arm in enumerate(bpy.data.armatures):
            arm.pose_position = ob_arms_orig_rest[i]

        if ob_arms_orig_rest:
            for ob_base in bpy.data.objects:
                if ob_base.type == 'ARMATURE':
                    ob_base.update_tag()
            # This causes the makeDisplayList command to effect the mesh
            scene.frame_set(scene.frame_current)

    del tmp_ob_type, context_objects

    # now we have collected all armatures, add bones
    for i, ob in enumerate(ob_arms):

        ob_arms[i] = my_arm = my_object_generic(ob)

        my_arm.fbxBones = []
        my_arm.blenData = ob.data
        if ob.animation_data:
            my_arm.blenAction = ob.animation_data.action
        else:
            my_arm.blenAction = None
        my_arm.blenActionList = []

        # fbxName, blenderObject, my_bones, blenderActions
        #ob_arms[i] = fbxArmObName, ob, arm_my_bones, (ob.action, [])

        for bone in my_arm.blenData.bones: