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Bastien Montagne authored
When we are exporting actions or strips from NLA, and an evaluated anim leads to no anim at all (like single-keyed actions or pure static ones), key all start and end frames. Note this might be overkill (due to baked anim, we will key *all* transform channels), but probably better than skipping completely those actions!
Bastien Montagne authoredWhen we are exporting actions or strips from NLA, and an evaluated anim leads to no anim at all (like single-keyed actions or pure static ones), key all start and end frames. Note this might be overkill (due to baked anim, we will key *all* transform channels), but probably better than skipping completely those actions!
export_fbx_bin.py 128.43 KiB
# ##### BEGIN GPL LICENSE BLOCK #####
#
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# modify it under the terms of the GNU General Public License
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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# ##### END GPL LICENSE BLOCK #####
# <pep8 compliant>
# Script copyright (C) Campbell Barton, Bastien Montagne
import array
import datetime
import math
import os
import time
from collections import OrderedDict
from itertools import zip_longest, chain
if "bpy" in locals():
import importlib
if "encode_bin" in locals():
importlib.reload(encode_bin)
if "data_types" in locals():
importlib.reload(data_types)
if "fbx_utils" in locals():
importlib.reload(fbx_utils)
import bpy
import bpy_extras
from mathutils import Vector, Matrix
from . import encode_bin, data_types, fbx_utils
from .fbx_utils import (
# Constants.
FBX_VERSION, FBX_HEADER_VERSION, FBX_SCENEINFO_VERSION, FBX_TEMPLATES_VERSION,
FBX_MODELS_VERSION,
FBX_GEOMETRY_VERSION, FBX_GEOMETRY_NORMAL_VERSION, FBX_GEOMETRY_BINORMAL_VERSION, FBX_GEOMETRY_TANGENT_VERSION,
FBX_GEOMETRY_SMOOTHING_VERSION, FBX_GEOMETRY_VCOLOR_VERSION, FBX_GEOMETRY_UV_VERSION,
FBX_GEOMETRY_MATERIAL_VERSION, FBX_GEOMETRY_LAYER_VERSION,
FBX_GEOMETRY_SHAPE_VERSION, FBX_DEFORMER_SHAPE_VERSION, FBX_DEFORMER_SHAPECHANNEL_VERSION,
FBX_POSE_BIND_VERSION, FBX_DEFORMER_SKIN_VERSION, FBX_DEFORMER_CLUSTER_VERSION,
FBX_MATERIAL_VERSION, FBX_TEXTURE_VERSION,
FBX_ANIM_KEY_VERSION,
FBX_ANIM_PROPSGROUP_NAME,
FBX_KTIME,
BLENDER_OTHER_OBJECT_TYPES, BLENDER_OBJECT_TYPES_MESHLIKE,
FBX_LIGHT_TYPES, FBX_LIGHT_DECAY_TYPES,
RIGHT_HAND_AXES, FBX_FRAMERATES,
# Miscellaneous utils.
units_convertor, units_convertor_iter, matrix4_to_array, similar_values, similar_values_iter,
# UUID from key.
get_fbx_uuid_from_key,
# Key generators.
get_blenderID_key, get_blenderID_name,
get_blender_mesh_shape_key, get_blender_mesh_shape_channel_key,
get_blender_empty_key, get_blender_bone_key,
get_blender_bindpose_key, get_blender_armature_skin_key, get_blender_bone_cluster_key,
get_blender_anim_id_base, get_blender_anim_stack_key, get_blender_anim_layer_key,
get_blender_anim_curve_node_key, get_blender_anim_curve_key,
# FBX element data.
elem_empty,
elem_data_single_bool, elem_data_single_int16, elem_data_single_int32, elem_data_single_int64,
elem_data_single_float32, elem_data_single_float64,
elem_data_single_bytes, elem_data_single_string, elem_data_single_string_unicode,
elem_data_single_bool_array, elem_data_single_int32_array, elem_data_single_int64_array,
elem_data_single_float32_array, elem_data_single_float64_array, elem_data_vec_float64,
# FBX element properties.
elem_properties, elem_props_set, elem_props_compound,
# FBX element properties handling templates.
elem_props_template_init, elem_props_template_set, elem_props_template_finalize,
# Templates.
FBXTemplate, fbx_templates_generate,
# Animation.
AnimationCurveNodeWrapper,
# Objects.
ObjectWrapper, fbx_name_class,
# Top level.
FBXExportSettingsMedia, FBXExportSettings, FBXExportData,
)
# Units convertors!
convert_sec_to_ktime = units_convertor("second", "ktime")
convert_sec_to_ktime_iter = units_convertor_iter("second", "ktime")
convert_mm_to_inch = units_convertor("millimeter", "inch")
convert_rad_to_deg = units_convertor("radian", "degree")
convert_rad_to_deg_iter = units_convertor_iter("radian", "degree")
# ##### Templates #####
# TODO: check all those "default" values, they should match Blender's default as much as possible, I guess?
def fbx_template_def_globalsettings(scene, settings, override_defaults=None, nbr_users=0):
props = OrderedDict()
if override_defaults is not None:
props.update(override_defaults)
return FBXTemplate(b"GlobalSettings", b"", props, nbr_users, [False])
def fbx_template_def_model(scene, settings, override_defaults=None, nbr_users=0):
gscale = settings.global_scale
props = OrderedDict((
# Name, Value, Type, Animatable
(b"QuaternionInterpolate", (0, "p_enum", False)), # 0 = no quat interpolation.
(b"RotationOffset", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"RotationPivot", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"ScalingOffset", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"ScalingPivot", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"TranslationActive", (False, "p_bool", False)),
(b"TranslationMin", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"TranslationMax", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"TranslationMinX", (False, "p_bool", False)),
(b"TranslationMinY", (False, "p_bool", False)),
(b"TranslationMinZ", (False, "p_bool", False)),
(b"TranslationMaxX", (False, "p_bool", False)),
(b"TranslationMaxY", (False, "p_bool", False)),
(b"TranslationMaxZ", (False, "p_bool", False)),
(b"RotationOrder", (0, "p_enum", False)), # we always use 'XYZ' order.
(b"RotationSpaceForLimitOnly", (False, "p_bool", False)),
(b"RotationStiffnessX", (0.0, "p_double", False)),
(b"RotationStiffnessY", (0.0, "p_double", False)),
(b"RotationStiffnessZ", (0.0, "p_double", False)),
(b"AxisLen", (10.0, "p_double", False)),
(b"PreRotation", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"PostRotation", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"RotationActive", (False, "p_bool", False)),
(b"RotationMin", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"RotationMax", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"RotationMinX", (False, "p_bool", False)),
(b"RotationMinY", (False, "p_bool", False)),
(b"RotationMinZ", (False, "p_bool", False)),
(b"RotationMaxX", (False, "p_bool", False)),
(b"RotationMaxY", (False, "p_bool", False)),
(b"RotationMaxZ", (False, "p_bool", False)),
(b"InheritType", (0, "p_enum", False)), # RrSs
(b"ScalingActive", (False, "p_bool", False)),
(b"ScalingMin", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"ScalingMax", ((1.0, 1.0, 1.0), "p_vector_3d", False)),
(b"ScalingMinX", (False, "p_bool", False)),
(b"ScalingMinY", (False, "p_bool", False)),
(b"ScalingMinZ", (False, "p_bool", False)),
(b"ScalingMaxX", (False, "p_bool", False)),
(b"ScalingMaxY", (False, "p_bool", False)),
(b"ScalingMaxZ", (False, "p_bool", False)),
(b"GeometricTranslation", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"GeometricRotation", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"GeometricScaling", ((1.0, 1.0, 1.0), "p_vector_3d", False)),
(b"MinDampRangeX", (0.0, "p_double", False)),
(b"MinDampRangeY", (0.0, "p_double", False)),
(b"MinDampRangeZ", (0.0, "p_double", False)),
(b"MaxDampRangeX", (0.0, "p_double", False)),
(b"MaxDampRangeY", (0.0, "p_double", False)),
(b"MaxDampRangeZ", (0.0, "p_double", False)),
(b"MinDampStrengthX", (0.0, "p_double", False)),
(b"MinDampStrengthY", (0.0, "p_double", False)),
(b"MinDampStrengthZ", (0.0, "p_double", False)),
(b"MaxDampStrengthX", (0.0, "p_double", False)),
(b"MaxDampStrengthY", (0.0, "p_double", False)),
(b"MaxDampStrengthZ", (0.0, "p_double", False)),
(b"PreferedAngleX", (0.0, "p_double", False)),
(b"PreferedAngleY", (0.0, "p_double", False)),
(b"PreferedAngleZ", (0.0, "p_double", False)),
(b"LookAtProperty", (None, "p_object", False)),
(b"UpVectorProperty", (None, "p_object", False)),
(b"Show", (True, "p_bool", False)),
(b"NegativePercentShapeSupport", (True, "p_bool", False)),
(b"DefaultAttributeIndex", (-1, "p_integer", False)),
(b"Freeze", (False, "p_bool", False)),
(b"LODBox", (False, "p_bool", False)),
(b"Lcl Translation", ((0.0, 0.0, 0.0), "p_lcl_translation", True)),
(b"Lcl Rotation", ((0.0, 0.0, 0.0), "p_lcl_rotation", True)),
(b"Lcl Scaling", ((1.0, 1.0, 1.0), "p_lcl_scaling", True)),
(b"Visibility", (1.0, "p_visibility", True)),
(b"Visibility Inheritance", (1, "p_visibility_inheritance", False)),
))
if override_defaults is not None:
props.update(override_defaults)
return FBXTemplate(b"Model", b"FbxNode", props, nbr_users, [False])
def fbx_template_def_null(scene, settings, override_defaults=None, nbr_users=0):
props = OrderedDict((
(b"Color", ((0.8, 0.8, 0.8), "p_color_rgb", False)),
(b"Size", (100.0, "p_double", False)),
(b"Look", (1, "p_enum", False)), # Cross (0 is None, i.e. invisible?).
))
if override_defaults is not None:
props.update(override_defaults)
return FBXTemplate(b"NodeAttribute", b"FbxNull", props, nbr_users, [False])
def fbx_template_def_light(scene, settings, override_defaults=None, nbr_users=0):
gscale = settings.global_scale
props = OrderedDict((
(b"LightType", (0, "p_enum", False)), # Point light.
(b"CastLight", (True, "p_bool", False)),
(b"Color", ((1.0, 1.0, 1.0), "p_color", True)),
(b"Intensity", (100.0, "p_number", True)), # Times 100 compared to Blender values...
(b"DecayType", (2, "p_enum", False)), # Quadratic.
(b"DecayStart", (30.0 * gscale, "p_double", False)),
(b"CastShadows", (True, "p_bool", False)),
(b"ShadowColor", ((0.0, 0.0, 0.0), "p_color", True)),
(b"AreaLightShape", (0, "p_enum", False)), # Rectangle.
))
if override_defaults is not None:
props.update(override_defaults)
return FBXTemplate(b"NodeAttribute", b"FbxLight", props, nbr_users, [False])
def fbx_template_def_camera(scene, settings, override_defaults=None, nbr_users=0):
r = scene.render
props = OrderedDict((
(b"Color", ((0.8, 0.8, 0.8), "p_color_rgb", False)),
(b"Position", ((0.0, 0.0, -50.0), "p_vector", True)),
(b"UpVector", ((0.0, 1.0, 0.0), "p_vector", True)),
(b"InterestPosition", ((0.0, 0.0, 0.0), "p_vector", True)),
(b"Roll", (0.0, "p_roll", True)),
(b"OpticalCenterX", (0.0, "p_opticalcenterx", True)),
(b"OpticalCenterY", (0.0, "p_opticalcentery", True)),
(b"BackgroundColor", ((0.63, 0.63, 0.63), "p_color", True)),
(b"TurnTable", (0.0, "p_number", True)),
(b"DisplayTurnTableIcon", (False, "p_bool", False)),
(b"UseMotionBlur", (False, "p_bool", False)),
(b"UseRealTimeMotionBlur", (True, "p_bool", False)),
(b"Motion Blur Intensity", (1.0, "p_number", True)),
(b"AspectRatioMode", (0, "p_enum", False)), # WindowSize.
(b"AspectWidth", (320.0, "p_double", False)),
(b"AspectHeight", (200.0, "p_double", False)),
(b"PixelAspectRatio", (1.0, "p_double", False)),
(b"FilmOffsetX", (0.0, "p_number", True)),
(b"FilmOffsetY", (0.0, "p_number", True)),
(b"FilmWidth", (0.816, "p_double", False)),
(b"FilmHeight", (0.612, "p_double", False)),
(b"FilmAspectRatio", (1.3333333333333333, "p_double", False)),
(b"FilmSqueezeRatio", (1.0, "p_double", False)),
(b"FilmFormatIndex", (0, "p_enum", False)), # Assuming this is ApertureFormat, 0 = custom.
(b"PreScale", (1.0, "p_number", True)),
(b"FilmTranslateX", (0.0, "p_number", True)),
(b"FilmTranslateY", (0.0, "p_number", True)),
(b"FilmRollPivotX", (0.0, "p_number", True)),
(b"FilmRollPivotY", (0.0, "p_number", True)),
(b"FilmRollValue", (0.0, "p_number", True)),
(b"FilmRollOrder", (0, "p_enum", False)), # 0 = rotate first (default).
(b"ApertureMode", (2, "p_enum", False)), # 2 = Vertical.
(b"GateFit", (0, "p_enum", False)), # 0 = no resolution gate fit.
(b"FieldOfView", (25.114999771118164, "p_fov", True)),
(b"FieldOfViewX", (40.0, "p_fov_x", True)),
(b"FieldOfViewY", (40.0, "p_fov_y", True)),
(b"FocalLength", (34.89327621672628, "p_number", True)),
(b"CameraFormat", (0, "p_enum", False)), # Custom camera format.
(b"UseFrameColor", (False, "p_bool", False)),
(b"FrameColor", ((0.3, 0.3, 0.3), "p_color_rgb", False)),
(b"ShowName", (True, "p_bool", False)),
(b"ShowInfoOnMoving", (True, "p_bool", False)),
(b"ShowGrid", (True, "p_bool", False)),
(b"ShowOpticalCenter", (False, "p_bool", False)),
(b"ShowAzimut", (True, "p_bool", False)),
(b"ShowTimeCode", (False, "p_bool", False)),
(b"ShowAudio", (False, "p_bool", False)),
(b"AudioColor", ((0.0, 1.0, 0.0), "p_vector_3d", False)), # Yep, vector3d, not corlorgb… :cry:
(b"NearPlane", (10.0, "p_double", False)),
(b"FarPlane", (4000.0, "p_double", False)),
(b"AutoComputeClipPanes", (False, "p_bool", False)),
(b"ViewCameraToLookAt", (True, "p_bool", False)),
(b"ViewFrustumNearFarPlane", (False, "p_bool", False)),
(b"ViewFrustumBackPlaneMode", (2, "p_enum", False)), # 2 = show back plane if texture added.
(b"BackPlaneDistance", (4000.0, "p_number", True)),
(b"BackPlaneDistanceMode", (1, "p_enum", False)), # 1 = relative to camera.
(b"ViewFrustumFrontPlaneMode", (2, "p_enum", False)), # 2 = show front plane if texture added.
(b"FrontPlaneDistance", (10.0, "p_number", True)),
(b"FrontPlaneDistanceMode", (1, "p_enum", False)), # 1 = relative to camera.
(b"LockMode", (False, "p_bool", False)),
(b"LockInterestNavigation", (False, "p_bool", False)),
# BackPlate... properties **arggggg!**
(b"FitImage", (False, "p_bool", False)),
(b"Crop", (False, "p_bool", False)),
(b"Center", (True, "p_bool", False)),
(b"KeepRatio", (True, "p_bool", False)),
# End of BackPlate...
(b"BackgroundAlphaTreshold", (0.5, "p_double", False)),
(b"ShowBackplate", (True, "p_bool", False)),
(b"BackPlaneOffsetX", (0.0, "p_number", True)),
(b"BackPlaneOffsetY", (0.0, "p_number", True)),
(b"BackPlaneRotation", (0.0, "p_number", True)),
(b"BackPlaneScaleX", (1.0, "p_number", True)),
(b"BackPlaneScaleY", (1.0, "p_number", True)),
(b"Background Texture", (None, "p_object", False)),
(b"FrontPlateFitImage", (True, "p_bool", False)),
(b"FrontPlateCrop", (False, "p_bool", False)),
(b"FrontPlateCenter", (True, "p_bool", False)),
(b"FrontPlateKeepRatio", (True, "p_bool", False)),
(b"Foreground Opacity", (1.0, "p_double", False)),
(b"ShowFrontplate", (True, "p_bool", False)),
(b"FrontPlaneOffsetX", (0.0, "p_number", True)),
(b"FrontPlaneOffsetY", (0.0, "p_number", True)),
(b"FrontPlaneRotation", (0.0, "p_number", True)),
(b"FrontPlaneScaleX", (1.0, "p_number", True)),
(b"FrontPlaneScaleY", (1.0, "p_number", True)),
(b"Foreground Texture", (None, "p_object", False)),
(b"DisplaySafeArea", (False, "p_bool", False)),
(b"DisplaySafeAreaOnRender", (False, "p_bool", False)),
(b"SafeAreaDisplayStyle", (1, "p_enum", False)), # 1 = rounded corners.
(b"SafeAreaAspectRatio", (1.3333333333333333, "p_double", False)),
(b"Use2DMagnifierZoom", (False, "p_bool", False)),
(b"2D Magnifier Zoom", (100.0, "p_number", True)),
(b"2D Magnifier X", (50.0, "p_number", True)),
(b"2D Magnifier Y", (50.0, "p_number", True)),
(b"CameraProjectionType", (0, "p_enum", False)), # 0 = perspective, 1 = orthogonal.
(b"OrthoZoom", (1.0, "p_double", False)),
(b"UseRealTimeDOFAndAA", (False, "p_bool", False)),
(b"UseDepthOfField", (False, "p_bool", False)),
(b"FocusSource", (0, "p_enum", False)), # 0 = camera interest, 1 = distance from camera interest.
(b"FocusAngle", (3.5, "p_double", False)), # ???
(b"FocusDistance", (200.0, "p_double", False)),
(b"UseAntialiasing", (False, "p_bool", False)),
(b"AntialiasingIntensity", (0.77777, "p_double", False)),
(b"AntialiasingMethod", (0, "p_enum", False)), # 0 = oversampling, 1 = hardware.
(b"UseAccumulationBuffer", (False, "p_bool", False)),
(b"FrameSamplingCount", (7, "p_integer", False)),
(b"FrameSamplingType", (1, "p_enum", False)), # 0 = uniform, 1 = stochastic.
))
if override_defaults is not None:
props.update(override_defaults)
return FBXTemplate(b"NodeAttribute", b"FbxCamera", props, nbr_users, [False])
def fbx_template_def_bone(scene, settings, override_defaults=None, nbr_users=0):
props = OrderedDict()
if override_defaults is not None:
props.update(override_defaults)
return FBXTemplate(b"NodeAttribute", b"LimbNode", props, nbr_users, [False])
def fbx_template_def_geometry(scene, settings, override_defaults=None, nbr_users=0):
props = OrderedDict((
(b"Color", ((0.8, 0.8, 0.8), "p_color_rgb", False)),
(b"BBoxMin", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"BBoxMax", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"Primary Visibility", (True, "p_bool", False)),
(b"Casts Shadows", (True, "p_bool", False)),
(b"Receive Shadows", (True, "p_bool", False)),
))
if override_defaults is not None:
props.update(override_defaults)
return FBXTemplate(b"Geometry", b"FbxMesh", props, nbr_users, [False])
def fbx_template_def_material(scene, settings, override_defaults=None, nbr_users=0):
# WIP...
props = OrderedDict((
(b"ShadingModel", ("Phong", "p_string", False)),
(b"MultiLayer", (False, "p_bool", False)),
# Lambert-specific.
(b"EmissiveColor", ((0.0, 0.0, 0.0), "p_color", True)),
(b"EmissiveFactor", (1.0, "p_number", True)),
(b"AmbientColor", ((0.2, 0.2, 0.2), "p_color", True)),
(b"AmbientFactor", (1.0, "p_number", True)),
(b"DiffuseColor", ((0.8, 0.8, 0.8), "p_color", True)),
(b"DiffuseFactor", (1.0, "p_number", True)),
(b"TransparentColor", ((0.0, 0.0, 0.0), "p_color", True)),
(b"TransparencyFactor", (0.0, "p_number", True)),
(b"Opacity", (1.0, "p_number", True)),
(b"NormalMap", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"Bump", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"BumpFactor", (1.0, "p_double", False)),
(b"DisplacementColor", ((0.0, 0.0, 0.0), "p_color_rgb", False)),
(b"DisplacementFactor", (1.0, "p_double", False)),
(b"VectorDisplacementColor", ((0.0, 0.0, 0.0), "p_color_rgb", False)),
(b"VectorDisplacementFactor", (1.0, "p_double", False)),
# Phong-specific.
(b"SpecularColor", ((0.2, 0.2, 0.2), "p_color", True)),
(b"SpecularFactor", (1.0, "p_number", True)),
# Not sure about the name, importer uses this (but ShininessExponent for tex prop name!)
# And in fbx exported by sdk, you have one in template, the other in actual material!!! :/
# For now, using both.
(b"Shininess", (20.0, "p_number", True)),
(b"ShininessExponent", (20.0, "p_number", True)),
(b"ReflectionColor", ((0.0, 0.0, 0.0), "p_color", True)),
(b"ReflectionFactor", (1.0, "p_number", True)),
))
if override_defaults is not None:
props.update(override_defaults)
return FBXTemplate(b"Material", b"FbxSurfacePhong", props, nbr_users, [False])
def fbx_template_def_texture_file(scene, settings, override_defaults=None, nbr_users=0):
# WIP...
# XXX Not sure about all names!
props = OrderedDict((
(b"TextureTypeUse", (0, "p_enum", False)), # Standard.
(b"AlphaSource", (2, "p_enum", False)), # Black (i.e. texture's alpha), XXX name guessed!.
(b"Texture alpha", (1.0, "p_double", False)),
(b"PremultiplyAlpha", (True, "p_bool", False)),
(b"CurrentTextureBlendMode", (1, "p_enum", False)), # Additive...
(b"CurrentMappingType", (0, "p_enum", False)), # UV.
(b"UVSet", ("default", "p_string", False)), # UVMap name.
(b"WrapModeU", (0, "p_enum", False)), # Repeat.
(b"WrapModeV", (0, "p_enum", False)), # Repeat.
(b"UVSwap", (False, "p_bool", False)),
(b"Translation", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"Rotation", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"Scaling", ((1.0, 1.0, 1.0), "p_vector_3d", False)),
(b"TextureRotationPivot", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
(b"TextureScalingPivot", ((0.0, 0.0, 0.0), "p_vector_3d", False)),
# Not sure about those two...
(b"UseMaterial", (False, "p_bool", False)),
(b"UseMipMap", (False, "p_bool", False)),
))
if override_defaults is not None:
props.update(override_defaults)
return FBXTemplate(b"Texture", b"FbxFileTexture", props, nbr_users, [False])
def fbx_template_def_video(scene, settings, override_defaults=None, nbr_users=0):
# WIP...
props = OrderedDict((
# All pictures.
(b"Width", (0, "p_integer", False)),
(b"Height", (0, "p_integer", False)),
(b"Path", ("", "p_string_url", False)),
(b"AccessMode", (0, "p_enum", False)), # Disk (0=Disk, 1=Mem, 2=DiskAsync).
# All videos.
(b"StartFrame", (0, "p_integer", False)),
(b"StopFrame", (0, "p_integer", False)),
(b"Offset", (0, "p_timestamp", False)),
(b"PlaySpeed", (0.0, "p_double", False)),
(b"FreeRunning", (False, "p_bool", False)),
(b"Loop", (False, "p_bool", False)),
(b"InterlaceMode", (0, "p_enum", False)), # None, i.e. progressive.
# Image sequences.
(b"ImageSequence", (False, "p_bool", False)),
(b"ImageSequenceOffset", (0, "p_integer", False)),
(b"FrameRate", (0.0, "p_double", False)),
(b"LastFrame", (0, "p_integer", False)),
))
if override_defaults is not None:
props.update(override_defaults)
return FBXTemplate(b"Video", b"FbxVideo", props, nbr_users, [False])
def fbx_template_def_pose(scene, settings, override_defaults=None, nbr_users=0):
props = OrderedDict()
if override_defaults is not None:
props.update(override_defaults)
return FBXTemplate(b"Pose", b"", props, nbr_users, [False])
def fbx_template_def_deformer(scene, settings, override_defaults=None, nbr_users=0):
props = OrderedDict()
if override_defaults is not None:
props.update(override_defaults)
return FBXTemplate(b"Deformer", b"", props, nbr_users, [False])
def fbx_template_def_animstack(scene, settings, override_defaults=None, nbr_users=0):
props = OrderedDict((
(b"Description", ("", "p_string", False)),
(b"LocalStart", (0, "p_timestamp", False)),
(b"LocalStop", (0, "p_timestamp", False)),
(b"ReferenceStart", (0, "p_timestamp", False)),
(b"ReferenceStop", (0, "p_timestamp", False)),
))
if override_defaults is not None:
props.update(override_defaults)
return FBXTemplate(b"AnimationStack", b"FbxAnimStack", props, nbr_users, [False])
def fbx_template_def_animlayer(scene, settings, override_defaults=None, nbr_users=0):
props = OrderedDict((
(b"Weight", (100.0, "p_number", True)),
(b"Mute", (False, "p_bool", False)),
(b"Solo", (False, "p_bool", False)),
(b"Lock", (False, "p_bool", False)),
(b"Color", ((0.8, 0.8, 0.8), "p_color_rgb", False)),
(b"BlendMode", (0, "p_enum", False)),
(b"RotationAccumulationMode", (0, "p_enum", False)),
(b"ScaleAccumulationMode", (0, "p_enum", False)),
(b"BlendModeBypass", (0, "p_ulonglong", False)),
))
if override_defaults is not None:
props.update(override_defaults)
return FBXTemplate(b"AnimationLayer", b"FbxAnimLayer", props, nbr_users, [False])
def fbx_template_def_animcurvenode(scene, settings, override_defaults=None, nbr_users=0):
props = OrderedDict((
(FBX_ANIM_PROPSGROUP_NAME.encode(), (None, "p_compound", False)),
))
if override_defaults is not None:
props.update(override_defaults)
return FBXTemplate(b"AnimationCurveNode", b"FbxAnimCurveNode", props, nbr_users, [False])
def fbx_template_def_animcurve(scene, settings, override_defaults=None, nbr_users=0):
props = OrderedDict()
if override_defaults is not None:
props.update(override_defaults)
return FBXTemplate(b"AnimationCurve", b"", props, nbr_users, [False])
# ##### Generators for connection elements. #####
def elem_connection(elem, c_type, uid_src, uid_dst, prop_dst=None):
e = elem_data_single_string(elem, b"C", c_type)
e.add_int64(uid_src)
e.add_int64(uid_dst)
if prop_dst is not None:
e.add_string(prop_dst)
# ##### FBX objects generators. #####
def fbx_data_element_custom_properties(props, bid):
"""
Store custom properties of blender ID bid (any mapping-like object, in fact) into FBX properties props.
"""
for k, v in bid.items():
list_val = getattr(v, "to_list", lambda: None)()
if isinstance(v, str):
elem_props_set(props, "p_string", k.encode(), v, custom=True)
elif isinstance(v, int):
elem_props_set(props, "p_integer", k.encode(), v, custom=True)
elif isinstance(v, float):
elem_props_set(props, "p_double", k.encode(), v, custom=True)
elif list_val and len(list_val) == 3:
elem_props_set(props, "p_vector", k.encode(), list_val, custom=True)
def fbx_data_empty_elements(root, empty, scene_data):
"""
Write the Empty data block.
"""
empty_key = scene_data.data_empties[empty]
null = elem_data_single_int64(root, b"NodeAttribute", get_fbx_uuid_from_key(empty_key))
null.add_string(fbx_name_class(empty.name.encode(), b"NodeAttribute"))
null.add_string(b"Null")
elem_data_single_string(null, b"TypeFlags", b"Null")
tmpl = elem_props_template_init(scene_data.templates, b"Null")
props = elem_properties(null)
elem_props_template_finalize(tmpl, props)
# No custom properties, already saved with object (Model).
def fbx_data_lamp_elements(root, lamp, scene_data):
"""
Write the Lamp data block.
"""
gscale = scene_data.settings.global_scale
lamp_key = scene_data.data_lamps[lamp]
do_light = True
decay_type = FBX_LIGHT_DECAY_TYPES['CONSTANT']
do_shadow = False
shadow_color = Vector((0.0, 0.0, 0.0))
if lamp.type not in {'HEMI'}:
if lamp.type not in {'SUN', 'AREA'}:
decay_type = FBX_LIGHT_DECAY_TYPES[lamp.falloff_type]
do_light = (not lamp.use_only_shadow) and (lamp.use_specular or lamp.use_diffuse)
do_shadow = lamp.shadow_method not in {'NOSHADOW'}
shadow_color = lamp.shadow_color
light = elem_data_single_int64(root, b"NodeAttribute", get_fbx_uuid_from_key(lamp_key))
light.add_string(fbx_name_class(lamp.name.encode(), b"NodeAttribute"))
light.add_string(b"Light")
elem_data_single_int32(light, b"GeometryVersion", FBX_GEOMETRY_VERSION) # Sic...
tmpl = elem_props_template_init(scene_data.templates, b"Light")
props = elem_properties(light)
elem_props_template_set(tmpl, props, "p_enum", b"LightType", FBX_LIGHT_TYPES[lamp.type])
elem_props_template_set(tmpl, props, "p_bool", b"CastLight", do_light)
elem_props_template_set(tmpl, props, "p_color", b"Color", lamp.color)
elem_props_template_set(tmpl, props, "p_number", b"Intensity", lamp.energy * 100.0)
elem_props_template_set(tmpl, props, "p_enum", b"DecayType", decay_type)
elem_props_template_set(tmpl, props, "p_double", b"DecayStart", lamp.distance * gscale)
elem_props_template_set(tmpl, props, "p_bool", b"CastShadows", do_shadow)
elem_props_template_set(tmpl, props, "p_color", b"ShadowColor", shadow_color)
if lamp.type in {'SPOT'}:
elem_props_template_set(tmpl, props, "p_double", b"OuterAngle", math.degrees(lamp.spot_size))
elem_props_template_set(tmpl, props, "p_double", b"InnerAngle",
math.degrees(lamp.spot_size * (1.0 - lamp.spot_blend)))
elem_props_template_finalize(tmpl, props)
# Custom properties.
if scene_data.settings.use_custom_props:
fbx_data_element_custom_properties(props, lamp)
def fbx_data_camera_elements(root, cam_obj, scene_data):
"""
Write the Camera data blocks.
"""
gscale = scene_data.settings.global_scale
cam = cam_obj.bdata
cam_data = cam.data
cam_key = scene_data.data_cameras[cam_obj]
# Real data now, good old camera!
# Object transform info.
loc, rot, scale, matrix, matrix_rot = cam_obj.fbx_object_tx(scene_data)
up = matrix_rot * Vector((0.0, 1.0, 0.0))
to = matrix_rot * Vector((0.0, 0.0, -1.0))
# Render settings.
# TODO We could export much more...
render = scene_data.scene.render
width = render.resolution_x
height = render.resolution_y
aspect = width / height
# Film width & height from mm to inches
filmwidth = convert_mm_to_inch(cam_data.sensor_width)
filmheight = convert_mm_to_inch(cam_data.sensor_height)
filmaspect = filmwidth / filmheight
# Film offset
offsetx = filmwidth * cam_data.shift_x
offsety = filmaspect * filmheight * cam_data.shift_y
cam = elem_data_single_int64(root, b"NodeAttribute", get_fbx_uuid_from_key(cam_key))
cam.add_string(fbx_name_class(cam_data.name.encode(), b"NodeAttribute"))
cam.add_string(b"Camera")
tmpl = elem_props_template_init(scene_data.templates, b"Camera")
props = elem_properties(cam)
elem_props_template_set(tmpl, props, "p_vector", b"Position", loc)
elem_props_template_set(tmpl, props, "p_vector", b"UpVector", up)
elem_props_template_set(tmpl, props, "p_vector", b"InterestPosition", loc + to) # Point, not vector!
# Should we use world value?
elem_props_template_set(tmpl, props, "p_color", b"BackgroundColor", (0.0, 0.0, 0.0))
elem_props_template_set(tmpl, props, "p_bool", b"DisplayTurnTableIcon", True)
elem_props_template_set(tmpl, props, "p_enum", b"AspectRatioMode", 2) # FixedResolution
elem_props_template_set(tmpl, props, "p_double", b"AspectWidth", float(render.resolution_x))
elem_props_template_set(tmpl, props, "p_double", b"AspectHeight", float(render.resolution_y))
elem_props_template_set(tmpl, props, "p_double", b"PixelAspectRatio",
float(render.pixel_aspect_x / render.pixel_aspect_y))
elem_props_template_set(tmpl, props, "p_double", b"FilmWidth", filmwidth)
elem_props_template_set(tmpl, props, "p_double", b"FilmHeight", filmheight)
elem_props_template_set(tmpl, props, "p_double", b"FilmAspectRatio", filmaspect)
elem_props_template_set(tmpl, props, "p_double", b"FilmOffsetX", offsetx)
elem_props_template_set(tmpl, props, "p_double", b"FilmOffsetY", offsety)
elem_props_template_set(tmpl, props, "p_enum", b"ApertureMode", 3) # FocalLength.
elem_props_template_set(tmpl, props, "p_enum", b"GateFit", 2) # FitHorizontal.
elem_props_template_set(tmpl, props, "p_fov", b"FieldOfView", math.degrees(cam_data.angle_x))
elem_props_template_set(tmpl, props, "p_fov_x", b"FieldOfViewX", math.degrees(cam_data.angle_x))
elem_props_template_set(tmpl, props, "p_fov_y", b"FieldOfViewY", math.degrees(cam_data.angle_y))
# No need to convert to inches here...
elem_props_template_set(tmpl, props, "p_double", b"FocalLength", cam_data.lens)
elem_props_template_set(tmpl, props, "p_double", b"SafeAreaAspectRatio", aspect)
# Default to perspective camera.
elem_props_template_set(tmpl, props, "p_enum", b"CameraProjectionType", 1 if cam_data.type == 'ORTHO' else 0)
elem_props_template_set(tmpl, props, "p_double", b"OrthoZoom", cam_data.ortho_scale)
elem_props_template_set(tmpl, props, "p_double", b"NearPlane", cam_data.clip_start * gscale)
elem_props_template_set(tmpl, props, "p_double", b"FarPlane", cam_data.clip_end * gscale)
elem_props_template_set(tmpl, props, "p_enum", b"BackPlaneDistanceMode", 1) # RelativeToCamera.
elem_props_template_set(tmpl, props, "p_double", b"BackPlaneDistance", cam_data.clip_end * gscale)
elem_props_template_finalize(tmpl, props)
# Custom properties.
if scene_data.settings.use_custom_props:
fbx_data_element_custom_properties(props, cam_data)
elem_data_single_string(cam, b"TypeFlags", b"Camera")
elem_data_single_int32(cam, b"GeometryVersion", 124) # Sic...
elem_data_vec_float64(cam, b"Position", loc)
elem_data_vec_float64(cam, b"Up", up)
elem_data_vec_float64(cam, b"LookAt", to)
elem_data_single_int32(cam, b"ShowInfoOnMoving", 1)
elem_data_single_int32(cam, b"ShowAudio", 0)
elem_data_vec_float64(cam, b"AudioColor", (0.0, 1.0, 0.0))
elem_data_single_float64(cam, b"CameraOrthoZoom", 1.0)
def fbx_data_bindpose_element(root, me_obj, me, scene_data, arm_obj=None, bones=[]):
"""
Helper, since bindpose are used by both meshes shape keys and armature bones...
"""
if arm_obj is None:
arm_obj = me_obj
# We assume bind pose for our bones are their "Editmode" pose...
# All matrices are expected in global (world) space.
bindpose_key = get_blender_bindpose_key(arm_obj.bdata, me)
fbx_pose = elem_data_single_int64(root, b"Pose", get_fbx_uuid_from_key(bindpose_key))
fbx_pose.add_string(fbx_name_class(me.name.encode(), b"Pose"))
fbx_pose.add_string(b"BindPose")
elem_data_single_string(fbx_pose, b"Type", b"BindPose")
elem_data_single_int32(fbx_pose, b"Version", FBX_POSE_BIND_VERSION)
elem_data_single_int32(fbx_pose, b"NbPoseNodes", 1 + len(bones))
# First node is mesh/object.
mat_world_obj = me_obj.fbx_object_matrix(scene_data, global_space=True)
fbx_posenode = elem_empty(fbx_pose, b"PoseNode")
elem_data_single_int64(fbx_posenode, b"Node", me_obj.fbx_uuid)
elem_data_single_float64_array(fbx_posenode, b"Matrix", matrix4_to_array(mat_world_obj))
# And all bones of armature!
mat_world_bones = {}
for bo_obj in bones:
bomat = bo_obj.fbx_object_matrix(scene_data, rest=True, global_space=True)
mat_world_bones[bo_obj] = bomat
fbx_posenode = elem_empty(fbx_pose, b"PoseNode")
elem_data_single_int64(fbx_posenode, b"Node", bo_obj.fbx_uuid)
elem_data_single_float64_array(fbx_posenode, b"Matrix", matrix4_to_array(bomat))
return mat_world_obj, mat_world_bones
def fbx_data_mesh_shapes_elements(root, me_obj, me, scene_data, fbx_me_tmpl, fbx_me_props):
"""
Write shape keys related data.
"""
if me not in scene_data.data_deformers_shape:
return
# First, write the geometry data itself (i.e. shapes).
_me_key, shape_key, shapes = scene_data.data_deformers_shape[me]
channels = []
for shape, (channel_key, geom_key, shape_verts_co, shape_verts_idx) in shapes.items():
# Use vgroups as weights, if defined.
if shape.vertex_group and shape.vertex_group in me_obj.bdata.vertex_groups:
shape_verts_weights = [0.0] * (len(shape_verts_co) // 3)
vg_idx = me_obj.bdata.vertex_groups[shape.vertex_group].index
for sk_idx, v_idx in enumerate(shape_verts_idx):
for vg in me.vertices[v_idx].groups:
if vg.group == vg_idx:
shape_verts_weights[sk_idx] = vg.weight * 100.0
else:
shape_verts_weights = [100.0] * (len(shape_verts_co) // 3)
channels.append((channel_key, shape, shape_verts_weights))
geom = elem_data_single_int64(root, b"Geometry", get_fbx_uuid_from_key(geom_key))
geom.add_string(fbx_name_class(shape.name.encode(), b"Geometry"))
geom.add_string(b"Shape")
tmpl = elem_props_template_init(scene_data.templates, b"Geometry")
props = elem_properties(geom)
elem_props_template_finalize(tmpl, props)
elem_data_single_int32(geom, b"Version", FBX_GEOMETRY_SHAPE_VERSION)
elem_data_single_int32_array(geom, b"Indexes", shape_verts_idx)
elem_data_single_float64_array(geom, b"Vertices", shape_verts_co)
elem_data_single_float64_array(geom, b"Normals", [0.0] * len(shape_verts_co))
# Yiha! BindPose for shapekeys too! Dodecasigh...
# XXX Not sure yet whether several bindposes on same mesh are allowed, or not... :/
fbx_data_bindpose_element(root, me_obj, me, scene_data)
# ...and now, the deformers stuff.
fbx_shape = elem_data_single_int64(root, b"Deformer", get_fbx_uuid_from_key(shape_key))
fbx_shape.add_string(fbx_name_class(me.name.encode(), b"Deformer"))
fbx_shape.add_string(b"BlendShape")
elem_data_single_int32(fbx_shape, b"Version", FBX_DEFORMER_SHAPE_VERSION)
for channel_key, shape, shape_verts_weights in channels:
fbx_channel = elem_data_single_int64(root, b"Deformer", get_fbx_uuid_from_key(channel_key))
fbx_channel.add_string(fbx_name_class(shape.name.encode(), b"SubDeformer"))
fbx_channel.add_string(b"BlendShapeChannel")
elem_data_single_int32(fbx_channel, b"Version", FBX_DEFORMER_SHAPECHANNEL_VERSION)
elem_data_single_float64(fbx_channel, b"DeformPercent", shape.value * 100.0) # Percents...
elem_data_single_float64_array(fbx_channel, b"FullWeights", shape_verts_weights)
# *WHY* add this in linked mesh properties too? *cry*
# No idea whether it’s percent here too, or more usual factor (assume percentage for now) :/
elem_props_template_set(fbx_me_tmpl, fbx_me_props, "p_number", shape.name.encode(), shape.value * 100.0,
animatable=True)
def fbx_data_mesh_elements(root, me_obj, scene_data, done_meshes):
"""
Write the Mesh (Geometry) data block.
"""
# Ugly helper... :/
def _infinite_gen(val):
while 1:
yield val
me_key, me, _free = scene_data.data_meshes[me_obj]
# In case of multiple instances of same mesh, only write it once!
if me_key in done_meshes:
return
# No gscale/gmat here, all data are supposed to be in object space.
smooth_type = scene_data.settings.mesh_smooth_type
write_normals = smooth_type in {'OFF'}
do_bake_space_transform = me_obj.use_bake_space_transform(scene_data)
# Vertices are in object space, but we are post-multiplying all transforms with the inverse of the
# global matrix, so we need to apply the global matrix to the vertices to get the correct result.
geom_mat_co = scene_data.settings.global_matrix if do_bake_space_transform else None
# We need to apply the inverse transpose of the global matrix when transforming normals.
geom_mat_no = Matrix(scene_data.settings.global_matrix_inv_transposed) if do_bake_space_transform else None
if geom_mat_no is not None:
# Remove translation & scaling!
geom_mat_no.translation = Vector()
geom_mat_no.normalize()
geom = elem_data_single_int64(root, b"Geometry", get_fbx_uuid_from_key(me_key))
geom.add_string(fbx_name_class(me.name.encode(), b"Geometry"))
geom.add_string(b"Mesh")
tmpl = elem_props_template_init(scene_data.templates, b"Geometry")
props = elem_properties(geom)
# Custom properties.
if scene_data.settings.use_custom_props:
fbx_data_element_custom_properties(props, me)
elem_data_single_int32(geom, b"GeometryVersion", FBX_GEOMETRY_VERSION)
# Vertex cos.
t_co = array.array(data_types.ARRAY_FLOAT64, (0.0,)) * len(me.vertices) * 3
me.vertices.foreach_get("co", t_co)
if geom_mat_co is not None:
def _vcos_transformed_gen(raw_cos, m=None):
# Note: we could most likely get much better performances with numpy, but will leave this as TODO for now.
return chain(*(m * Vector(v) for v in zip(*(iter(raw_cos),) * 3)))
t_co = _vcos_transformed_gen(t_co, geom_mat_co)
elem_data_single_float64_array(geom, b"Vertices", t_co)
del t_co
# Polygon indices.
#
# We do loose edges as two-vertices faces, if enabled...
#
# Note we have to process Edges in the same time, as they are based on poly's loops...
loop_nbr = len(me.loops)
t_pvi = array.array(data_types.ARRAY_INT32, (0,)) * loop_nbr
t_ls = [None] * len(me.polygons)
me.loops.foreach_get("vertex_index", t_pvi)
me.polygons.foreach_get("loop_start", t_ls)
# Add "fake" faces for loose edges.
if scene_data.settings.use_mesh_edges:
t_le = tuple(e.vertices for e in me.edges if e.is_loose)
t_pvi.extend(chain(*t_le))
t_ls.extend(range(loop_nbr, loop_nbr + len(t_le), 2))
del t_le
# Edges...
# Note: Edges are represented as a loop here: each edge uses a single index, which refers to the polygon array.
# The edge is made by the vertex indexed py this polygon's point and the next one on the same polygon.
# Advantage: Only one index per edge.
# Drawback: Only polygon's edges can be represented (that's why we have to add fake two-verts polygons
# for loose edges).
# We also have to store a mapping from real edges to their indices in this array, for edge-mapped data
# (like e.g. crease).
t_eli = array.array(data_types.ARRAY_INT32)
edges_map = {}
edges_nbr = 0
if t_ls and t_pvi:
t_ls = set(t_ls)
todo_edges = [None] * len(me.edges) * 2
me.edges.foreach_get("vertices", todo_edges)
todo_edges = set((v1, v2) if v1 < v2 else (v2, v1) for v1, v2 in zip(*(iter(todo_edges),) * 2))
li = 0
vi = vi_start = t_pvi[0]
for li_next, vi_next in enumerate(t_pvi[1:] + t_pvi[:1], start=1):
if li_next in t_ls: # End of a poly's loop.
vi2 = vi_start
vi_start = vi_next
else:
vi2 = vi_next
e_key = (vi, vi2) if vi < vi2 else (vi2, vi)
if e_key in todo_edges:
t_eli.append(li)
todo_edges.remove(e_key)
edges_map[e_key] = edges_nbr
edges_nbr += 1
vi = vi_next
li = li_next
# End of edges!
# We have to ^-1 last index of each loop.
for ls in t_ls:
t_pvi[ls - 1] ^= -1
# And finally we can write data!
elem_data_single_int32_array(geom, b"PolygonVertexIndex", t_pvi)
elem_data_single_int32_array(geom, b"Edges", t_eli)
del t_pvi
del t_ls
del t_eli
# And now, layers!
# Smoothing.
if smooth_type in {'FACE', 'EDGE'}:
t_ps = None
_map = b""
if smooth_type == 'FACE':
t_ps = array.array(data_types.ARRAY_INT32, (0,)) * len(me.polygons)
me.polygons.foreach_get("use_smooth", t_ps)
_map = b"ByPolygon"
else: # EDGE
# Write Edge Smoothing.
t_ps = array.array(data_types.ARRAY_INT32, (0,)) * edges_nbr
for e in me.edges:
if e.key not in edges_map:
continue # Only loose edges, in theory!
t_ps[edges_map[e.key]] = not e.use_edge_sharp
_map = b"ByEdge"
lay_smooth = elem_data_single_int32(geom, b"LayerElementSmoothing", 0)
elem_data_single_int32(lay_smooth, b"Version", FBX_GEOMETRY_SMOOTHING_VERSION)
elem_data_single_string(lay_smooth, b"Name", b"")
elem_data_single_string(lay_smooth, b"MappingInformationType", _map)
elem_data_single_string(lay_smooth, b"ReferenceInformationType", b"Direct")
elem_data_single_int32_array(lay_smooth, b"Smoothing", t_ps) # Sight, int32 for bool...
del t_ps
# TODO: Edge crease (LayerElementCrease).
# And we are done with edges!
del edges_map
# Loop normals.
tspacenumber = 0
if (write_normals):
# NOTE: this is not supported by importer currently.
# XXX Official docs says normals should use IndexToDirect,
# but this does not seem well supported by apps currently...
me.calc_normals_split()
def _nortuples_gen(raw_nors, m):
# Great, now normals are also expected 4D!
# XXX Back to 3D normals for now!
# gen = zip(*(iter(raw_nors),) * 3 + (_infinite_gen(1.0),))
gen = zip(*(iter(raw_nors),) * 3)
return gen if m is None else (m * Vector(v) for v in gen)
t_ln = array.array(data_types.ARRAY_FLOAT64, (0.0,)) * len(me.loops) * 3
me.loops.foreach_get("normal", t_ln)
t_ln = _nortuples_gen(t_ln, geom_mat_no)
if 0:
t_ln = tuple(t_ln) # No choice... :/
lay_nor = elem_data_single_int32(geom, b"LayerElementNormal", 0)
elem_data_single_int32(lay_nor, b"Version", FBX_GEOMETRY_NORMAL_VERSION)
elem_data_single_string(lay_nor, b"Name", b"")
elem_data_single_string(lay_nor, b"MappingInformationType", b"ByPolygonVertex")
elem_data_single_string(lay_nor, b"ReferenceInformationType", b"IndexToDirect")
ln2idx = tuple(set(t_ln))
elem_data_single_float64_array(lay_nor, b"Normals", chain(*ln2idx))
# Normal weights, no idea what it is.
# t_lnw = array.array(data_types.ARRAY_FLOAT64, (0.0,)) * len(ln2idx)
# elem_data_single_float64_array(lay_nor, b"NormalsW", t_lnw)
ln2idx = {nor: idx for idx, nor in enumerate(ln2idx)}
elem_data_single_int32_array(lay_nor, b"NormalsIndex", (ln2idx[n] for n in t_ln))
del ln2idx
# del t_lnw
else:
lay_nor = elem_data_single_int32(geom, b"LayerElementNormal", 0)
elem_data_single_int32(lay_nor, b"Version", FBX_GEOMETRY_NORMAL_VERSION)
elem_data_single_string(lay_nor, b"Name", b"")
elem_data_single_string(lay_nor, b"MappingInformationType", b"ByPolygonVertex")
elem_data_single_string(lay_nor, b"ReferenceInformationType", b"Direct")
elem_data_single_float64_array(lay_nor, b"Normals", chain(*t_ln))
# Normal weights, no idea what it is.
# t_ln = array.array(data_types.ARRAY_FLOAT64, (0.0,)) * len(me.loops)
# elem_data_single_float64_array(lay_nor, b"NormalsW", t_ln)
del t_ln
# tspace
if scene_data.settings.use_tspace:
tspacenumber = len(me.uv_layers)
if tspacenumber:
t_ln = array.array(data_types.ARRAY_FLOAT64, (0.0,)) * len(me.loops) * 3
# t_lnw = array.array(data_types.ARRAY_FLOAT64, (0.0,)) * len(me.loops)
for idx, uvlayer in enumerate(me.uv_layers):
name = uvlayer.name
me.calc_tangents(name)
# Loop bitangents (aka binormals).
# NOTE: this is not supported by importer currently.
me.loops.foreach_get("bitangent", t_ln)
lay_nor = elem_data_single_int32(geom, b"LayerElementBinormal", idx)
elem_data_single_int32(lay_nor, b"Version", FBX_GEOMETRY_BINORMAL_VERSION)
elem_data_single_string_unicode(lay_nor, b"Name", name)
elem_data_single_string(lay_nor, b"MappingInformationType", b"ByPolygonVertex")
elem_data_single_string(lay_nor, b"ReferenceInformationType", b"Direct")
elem_data_single_float64_array(lay_nor, b"Binormals", chain(*_nortuples_gen(t_ln, geom_mat_no)))
# Binormal weights, no idea what it is.
# elem_data_single_float64_array(lay_nor, b"BinormalsW", t_lnw)
# Loop tangents.
# NOTE: this is not supported by importer currently.
me.loops.foreach_get("tangent", t_ln)
lay_nor = elem_data_single_int32(geom, b"LayerElementTangent", idx)
elem_data_single_int32(lay_nor, b"Version", FBX_GEOMETRY_TANGENT_VERSION)
elem_data_single_string_unicode(lay_nor, b"Name", name)
elem_data_single_string(lay_nor, b"MappingInformationType", b"ByPolygonVertex")
elem_data_single_string(lay_nor, b"ReferenceInformationType", b"Direct")
elem_data_single_float64_array(lay_nor, b"Tangents", chain(*_nortuples_gen(t_ln, geom_mat_no)))
# Tangent weights, no idea what it is.
# elem_data_single_float64_array(lay_nor, b"TangentsW", t_lnw)
del t_ln
# del t_lnw
me.free_tangents()
me.free_normals_split()
del _nortuples_gen
# Write VertexColor Layers.
vcolnumber = len(me.vertex_colors)
if vcolnumber:
def _coltuples_gen(raw_cols):
return zip(*(iter(raw_cols),) * 3 + (_infinite_gen(1.0),)) # We need a fake alpha...
t_lc = array.array(data_types.ARRAY_FLOAT64, (0.0,)) * len(me.loops) * 3
for colindex, collayer in enumerate(me.vertex_colors):
collayer.data.foreach_get("color", t_lc)
lay_vcol = elem_data_single_int32(geom, b"LayerElementColor", colindex)
elem_data_single_int32(lay_vcol, b"Version", FBX_GEOMETRY_VCOLOR_VERSION)
elem_data_single_string_unicode(lay_vcol, b"Name", collayer.name)
elem_data_single_string(lay_vcol, b"MappingInformationType", b"ByPolygonVertex")
elem_data_single_string(lay_vcol, b"ReferenceInformationType", b"IndexToDirect")
col2idx = tuple(set(_coltuples_gen(t_lc)))
elem_data_single_float64_array(lay_vcol, b"Colors", chain(*col2idx)) # Flatten again...
col2idx = {col: idx for idx, col in enumerate(col2idx)}
elem_data_single_int32_array(lay_vcol, b"ColorIndex", (col2idx[c] for c in _coltuples_gen(t_lc)))
del col2idx
del t_lc
del _coltuples_gen
# Write UV layers.
# Note: LayerElementTexture is deprecated since FBX 2011 - luckily!
# Textures are now only related to materials, in FBX!
uvnumber = len(me.uv_layers)
if uvnumber:
def _uvtuples_gen(raw_uvs):
return zip(*(iter(raw_uvs),) * 2)
t_luv = array.array(data_types.ARRAY_FLOAT64, (0.0,)) * len(me.loops) * 2
for uvindex, uvlayer in enumerate(me.uv_layers):
uvlayer.data.foreach_get("uv", t_luv)
lay_uv = elem_data_single_int32(geom, b"LayerElementUV", uvindex)
elem_data_single_int32(lay_uv, b"Version", FBX_GEOMETRY_UV_VERSION)
elem_data_single_string_unicode(lay_uv, b"Name", uvlayer.name)
elem_data_single_string(lay_uv, b"MappingInformationType", b"ByPolygonVertex")
elem_data_single_string(lay_uv, b"ReferenceInformationType", b"IndexToDirect")
uv2idx = tuple(set(_uvtuples_gen(t_luv)))
elem_data_single_float64_array(lay_uv, b"UV", chain(*uv2idx)) # Flatten again...
uv2idx = {uv: idx for idx, uv in enumerate(uv2idx)}
elem_data_single_int32_array(lay_uv, b"UVIndex", (uv2idx[uv] for uv in _uvtuples_gen(t_luv)))
del uv2idx
del t_luv
del _uvtuples_gen
# Face's materials.
me_fbxmats_idx = scene_data.mesh_mat_indices.get(me)
if me_fbxmats_idx is not None:
me_blmats = me.materials
if me_fbxmats_idx and me_blmats:
lay_mat = elem_data_single_int32(geom, b"LayerElementMaterial", 0)
elem_data_single_int32(lay_mat, b"Version", FBX_GEOMETRY_MATERIAL_VERSION)
elem_data_single_string(lay_mat, b"Name", b"")
nbr_mats = len(me_fbxmats_idx)
if nbr_mats > 1:
t_pm = array.array(data_types.ARRAY_INT32, (0,)) * len(me.polygons)
me.polygons.foreach_get("material_index", t_pm)
# We have to validate mat indices, and map them to FBX indices.
# Note a mat might not be in me_fbxmats_idx (e.g. node mats are ignored).
blmats_to_fbxmats_idxs = [me_fbxmats_idx[m] for m in me_blmats if m in me_fbxmats_idx]
mat_idx_limit = len(blmats_to_fbxmats_idxs)
def_mat = blmats_to_fbxmats_idxs[0]
_gen = (blmats_to_fbxmats_idxs[m] if m < mat_idx_limit else def_mat for m in t_pm)
t_pm = array.array(data_types.ARRAY_INT32, _gen)
elem_data_single_string(lay_mat, b"MappingInformationType", b"ByPolygon")
# XXX Logically, should be "Direct" reference type, since we do not have any index array, and have one
# value per polygon...
# But looks like FBX expects it to be IndexToDirect here (maybe because materials are already
# indices??? *sigh*).
elem_data_single_string(lay_mat, b"ReferenceInformationType", b"IndexToDirect")
elem_data_single_int32_array(lay_mat, b"Materials", t_pm)
del t_pm
else:
elem_data_single_string(lay_mat, b"MappingInformationType", b"AllSame")
elem_data_single_string(lay_mat, b"ReferenceInformationType", b"IndexToDirect")
elem_data_single_int32_array(lay_mat, b"Materials", [0])
# And the "layer TOC"...
layer = elem_data_single_int32(geom, b"Layer", 0)
elem_data_single_int32(layer, b"Version", FBX_GEOMETRY_LAYER_VERSION)
lay_nor = elem_empty(layer, b"LayerElement")
elem_data_single_string(lay_nor, b"Type", b"LayerElementNormal")
elem_data_single_int32(lay_nor, b"TypedIndex", 0)
if tspacenumber:
lay_binor = elem_empty(layer, b"LayerElement")
elem_data_single_string(lay_binor, b"Type", b"LayerElementBinormal")
elem_data_single_int32(lay_binor, b"TypedIndex", 0)
lay_tan = elem_empty(layer, b"LayerElement")
elem_data_single_string(lay_tan, b"Type", b"LayerElementTangent")
elem_data_single_int32(lay_tan, b"TypedIndex", 0)
if smooth_type in {'FACE', 'EDGE'}:
lay_smooth = elem_empty(layer, b"LayerElement")
elem_data_single_string(lay_smooth, b"Type", b"LayerElementSmoothing")
elem_data_single_int32(lay_smooth, b"TypedIndex", 0)
if vcolnumber:
lay_vcol = elem_empty(layer, b"LayerElement")
elem_data_single_string(lay_vcol, b"Type", b"LayerElementColor")
elem_data_single_int32(lay_vcol, b"TypedIndex", 0)
if uvnumber:
lay_uv = elem_empty(layer, b"LayerElement")
elem_data_single_string(lay_uv, b"Type", b"LayerElementUV")
elem_data_single_int32(lay_uv, b"TypedIndex", 0)
if me_fbxmats_idx is not None:
lay_mat = elem_empty(layer, b"LayerElement")
elem_data_single_string(lay_mat, b"Type", b"LayerElementMaterial")
elem_data_single_int32(lay_mat, b"TypedIndex", 0)
# Add other uv and/or vcol layers...
for vcolidx, uvidx, tspaceidx in zip_longest(range(1, vcolnumber), range(1, uvnumber), range(1, tspacenumber),
fillvalue=0):
layer = elem_data_single_int32(geom, b"Layer", max(vcolidx, uvidx))
elem_data_single_int32(layer, b"Version", FBX_GEOMETRY_LAYER_VERSION)
if vcolidx:
lay_vcol = elem_empty(layer, b"LayerElement")
elem_data_single_string(lay_vcol, b"Type", b"LayerElementColor")
elem_data_single_int32(lay_vcol, b"TypedIndex", vcolidx)
if uvidx:
lay_uv = elem_empty(layer, b"LayerElement")
elem_data_single_string(lay_uv, b"Type", b"LayerElementUV")
elem_data_single_int32(lay_uv, b"TypedIndex", uvidx)
if tspaceidx:
lay_binor = elem_empty(layer, b"LayerElement")
elem_data_single_string(lay_binor, b"Type", b"LayerElementBinormal")
elem_data_single_int32(lay_binor, b"TypedIndex", tspaceidx)
lay_tan = elem_empty(layer, b"LayerElement")
elem_data_single_string(lay_tan, b"Type", b"LayerElementTangent")
elem_data_single_int32(lay_tan, b"TypedIndex", tspaceidx)
# Shape keys...
fbx_data_mesh_shapes_elements(root, me_obj, me, scene_data, tmpl, props)
elem_props_template_finalize(tmpl, props)
done_meshes.add(me_key)
def check_skip_material(mat):
"""Simple helper to check whether we actually support exporting that material or not"""
return mat.type not in {'SURFACE'} or mat.use_nodes
def fbx_data_material_elements(root, mat, scene_data):
"""
Write the Material data block.
"""
ambient_color = (0.0, 0.0, 0.0)
if scene_data.data_world:
ambient_color = next(iter(scene_data.data_world.keys())).ambient_color
mat_key, _objs = scene_data.data_materials[mat]
skip_mat = check_skip_material(mat)
mat_type = b"Phong"
# Approximation...
if not skip_mat and mat.specular_shader not in {'COOKTORR', 'PHONG', 'BLINN'}:
mat_type = b"Lambert"
fbx_mat = elem_data_single_int64(root, b"Material", get_fbx_uuid_from_key(mat_key))
fbx_mat.add_string(fbx_name_class(mat.name.encode(), b"Material"))
fbx_mat.add_string(b"")
elem_data_single_int32(fbx_mat, b"Version", FBX_MATERIAL_VERSION)
# those are not yet properties, it seems...
elem_data_single_string(fbx_mat, b"ShadingModel", mat_type)
elem_data_single_int32(fbx_mat, b"MultiLayer", 0) # Should be bool...
tmpl = elem_props_template_init(scene_data.templates, b"Material")
props = elem_properties(fbx_mat)
if not skip_mat:
elem_props_template_set(tmpl, props, "p_string", b"ShadingModel", mat_type.decode())
elem_props_template_set(tmpl, props, "p_color", b"EmissiveColor", mat.diffuse_color)
elem_props_template_set(tmpl, props, "p_number", b"EmissiveFactor", mat.emit)
elem_props_template_set(tmpl, props, "p_color", b"AmbientColor", ambient_color)
elem_props_template_set(tmpl, props, "p_number", b"AmbientFactor", mat.ambient)
elem_props_template_set(tmpl, props, "p_color", b"DiffuseColor", mat.diffuse_color)
elem_props_template_set(tmpl, props, "p_number", b"DiffuseFactor", mat.diffuse_intensity)
elem_props_template_set(tmpl, props, "p_color", b"TransparentColor",
mat.diffuse_color if mat.use_transparency else (1.0, 1.0, 1.0))
elem_props_template_set(tmpl, props, "p_number", b"TransparencyFactor",
1.0 - mat.alpha if mat.use_transparency else 0.0)
elem_props_template_set(tmpl, props, "p_number", b"Opacity", mat.alpha if mat.use_transparency else 1.0)
elem_props_template_set(tmpl, props, "p_vector_3d", b"NormalMap", (0.0, 0.0, 0.0))
# Not sure about those...
"""
b"Bump": ((0.0, 0.0, 0.0), "p_vector_3d"),
b"BumpFactor": (1.0, "p_double"),
b"DisplacementColor": ((0.0, 0.0, 0.0), "p_color_rgb"),
b"DisplacementFactor": (0.0, "p_double"),
"""
if mat_type == b"Phong":
elem_props_template_set(tmpl, props, "p_color", b"SpecularColor", mat.specular_color)
elem_props_template_set(tmpl, props, "p_number", b"SpecularFactor", mat.specular_intensity / 2.0)
# See Material template about those two!
elem_props_template_set(tmpl, props, "p_number", b"Shininess", (mat.specular_hardness - 1.0) / 5.10)
elem_props_template_set(tmpl, props, "p_number", b"ShininessExponent", (mat.specular_hardness - 1.0) / 5.10)
elem_props_template_set(tmpl, props, "p_color", b"ReflectionColor", mat.mirror_color)
elem_props_template_set(tmpl, props, "p_number", b"ReflectionFactor",
mat.raytrace_mirror.reflect_factor if mat.raytrace_mirror.use else 0.0)
elem_props_template_finalize(tmpl, props)
# Custom properties.
if scene_data.settings.use_custom_props:
fbx_data_element_custom_properties(props, mat)
def _gen_vid_path(img, scene_data):
msetts = scene_data.settings.media_settings
fname_rel = bpy_extras.io_utils.path_reference(img.filepath, msetts.base_src, msetts.base_dst, msetts.path_mode,
msetts.subdir, msetts.copy_set, img.library)
fname_abs = os.path.normpath(os.path.abspath(os.path.join(msetts.base_dst, fname_rel)))
return fname_abs, fname_rel
def fbx_data_texture_file_elements(root, tex, scene_data):
"""
Write the (file) Texture data block.
"""
# XXX All this is very fuzzy to me currently...
# Textures do not seem to use properties as much as they could.
# For now assuming most logical and simple stuff.
tex_key, _mats = scene_data.data_textures[tex]
img = tex.texture.image
fname_abs, fname_rel = _gen_vid_path(img, scene_data)
fbx_tex = elem_data_single_int64(root, b"Texture", get_fbx_uuid_from_key(tex_key))
fbx_tex.add_string(fbx_name_class(tex.name.encode(), b"Texture"))
fbx_tex.add_string(b"")
elem_data_single_string(fbx_tex, b"Type", b"TextureVideoClip")
elem_data_single_int32(fbx_tex, b"Version", FBX_TEXTURE_VERSION)
elem_data_single_string(fbx_tex, b"TextureName", fbx_name_class(tex.name.encode(), b"Texture"))
elem_data_single_string(fbx_tex, b"Media", fbx_name_class(img.name.encode(), b"Video"))
elem_data_single_string_unicode(fbx_tex, b"FileName", fname_abs)
elem_data_single_string_unicode(fbx_tex, b"RelativeFilename", fname_rel)
alpha_source = 0 # None
if img.use_alpha:
if tex.texture.use_calculate_alpha:
alpha_source = 1 # RGBIntensity as alpha.
else:
alpha_source = 2 # Black, i.e. alpha channel.
# BlendMode not useful for now, only affects layered textures afaics.
mapping = 0 # UV.
uvset = None
if tex.texture_coords in {'ORCO'}: # XXX Others?
if tex.mapping in {'FLAT'}:
mapping = 1 # Planar
elif tex.mapping in {'CUBE'}:
mapping = 4 # Box
elif tex.mapping in {'TUBE'}:
mapping = 3 # Cylindrical
elif tex.mapping in {'SPHERE'}:
mapping = 2 # Spherical
elif tex.texture_coords in {'UV'}:
mapping = 0 # UV
# Yuck, UVs are linked by mere names it seems... :/
uvset = tex.uv_layer
wrap_mode = 1 # Clamp
if tex.texture.extension in {'REPEAT'}:
wrap_mode = 0 # Repeat
tmpl = elem_props_template_init(scene_data.templates, b"TextureFile")
props = elem_properties(fbx_tex)
elem_props_template_set(tmpl, props, "p_enum", b"AlphaSource", alpha_source)
elem_props_template_set(tmpl, props, "p_bool", b"PremultiplyAlpha",
img.alpha_mode in {'STRAIGHT'}) # Or is it PREMUL?
elem_props_template_set(tmpl, props, "p_enum", b"CurrentMappingType", mapping)
if uvset is not None:
elem_props_template_set(tmpl, props, "p_string", b"UVSet", uvset)
elem_props_template_set(tmpl, props, "p_enum", b"WrapModeU", wrap_mode)
elem_props_template_set(tmpl, props, "p_enum", b"WrapModeV", wrap_mode)
elem_props_template_set(tmpl, props, "p_vector_3d", b"Translation", tex.offset)
elem_props_template_set(tmpl, props, "p_vector_3d", b"Scaling", tex.scale)
# UseMaterial should always be ON imho.
elem_props_template_set(tmpl, props, "p_bool", b"UseMaterial", True)
elem_props_template_set(tmpl, props, "p_bool", b"UseMipMap", tex.texture.use_mipmap)
elem_props_template_finalize(tmpl, props)
# Custom properties.
if scene_data.settings.use_custom_props:
fbx_data_element_custom_properties(props, tex.texture)
def fbx_data_video_elements(root, vid, scene_data):
"""
Write the actual image data block.
"""
vid_key, _texs = scene_data.data_videos[vid]
fname_abs, fname_rel = _gen_vid_path(vid, scene_data)
fbx_vid = elem_data_single_int64(root, b"Video", get_fbx_uuid_from_key(vid_key))
fbx_vid.add_string(fbx_name_class(vid.name.encode(), b"Video"))
fbx_vid.add_string(b"Clip")
elem_data_single_string(fbx_vid, b"Type", b"Clip")
# XXX No Version???
tmpl = elem_props_template_init(scene_data.templates, b"Video")
props = elem_properties(fbx_vid)
elem_props_template_set(tmpl, props, "p_string_url", b"Path", fname_abs)
elem_props_template_finalize(tmpl, props)
elem_data_single_int32(fbx_vid, b"UseMipMap", 0)
elem_data_single_string_unicode(fbx_vid, b"FileName", fname_abs)
elem_data_single_string_unicode(fbx_vid, b"RelativeFilename", fname_rel)
if scene_data.settings.media_settings.embed_textures:
if vid.packed_file is not None:
elem_data_single_bytes(fbx_vid, b"Content", vid.packed_file.data)
else:
filepath = bpy.path.abspath(vid.filepath)
try:
with open(filepath, 'br') as f:
elem_data_single_bytes(fbx_vid, b"Content", f.read())
except Exception as e:
print("WARNING: embedding file {} failed ({})".format(filepath, e))
elem_data_single_bytes(fbx_vid, b"Content", b"")
else:
elem_data_single_bytes(fbx_vid, b"Content", b"")
def fbx_data_armature_elements(root, arm_obj, scene_data):
"""
Write:
* Bones "data" (NodeAttribute::LimbNode, contains pretty much nothing!).
* Deformers (i.e. Skin), bind between an armature and a mesh.
** SubDeformers (i.e. Cluster), one per bone/vgroup pair.
* BindPose.
Note armature itself has no data, it is a mere "Null" Model...
"""
mat_world_arm = arm_obj.fbx_object_matrix(scene_data, global_space=True)
bones = tuple(bo_obj for bo_obj in arm_obj.bones if bo_obj in scene_data.objects)
# Bones "data".
for bo_obj in bones:
bo = bo_obj.bdata
bo_data_key = scene_data.data_bones[bo_obj]
fbx_bo = elem_data_single_int64(root, b"NodeAttribute", get_fbx_uuid_from_key(bo_data_key))
fbx_bo.add_string(fbx_name_class(bo.name.encode(), b"NodeAttribute"))
fbx_bo.add_string(b"LimbNode")
elem_data_single_string(fbx_bo, b"TypeFlags", b"Skeleton")
tmpl = elem_props_template_init(scene_data.templates, b"Bone")
props = elem_properties(fbx_bo)
elem_props_template_set(tmpl, props, "p_double", b"Size", (bo.tail_local - bo.head_local).length)
elem_props_template_finalize(tmpl, props)
# Custom properties.
if scene_data.settings.use_custom_props:
fbx_data_element_custom_properties(props, bo)
# Skin deformers and BindPoses.
# Note: we might also use Deformers for our "parent to vertex" stuff???
deformer = scene_data.data_deformers_skin.get(arm_obj, None)
if deformer is not None:
for me, (skin_key, ob_obj, clusters) in deformer.items():
# BindPose.
mat_world_obj, mat_world_bones = fbx_data_bindpose_element(root, ob_obj, me, scene_data, arm_obj, bones)
# Deformer.
fbx_skin = elem_data_single_int64(root, b"Deformer", get_fbx_uuid_from_key(skin_key))
fbx_skin.add_string(fbx_name_class(arm_obj.name.encode(), b"Deformer"))
fbx_skin.add_string(b"Skin")
elem_data_single_int32(fbx_skin, b"Version", FBX_DEFORMER_SKIN_VERSION)
elem_data_single_float64(fbx_skin, b"Link_DeformAcuracy", 50.0) # Only vague idea what it is...
# Pre-process vertex weights (also to check vertices assigned ot more than four bones).
ob = ob_obj.bdata
bo_vg_idx = {bo_obj.bdata.name: ob.vertex_groups[bo_obj.bdata.name].index
for bo_obj in clusters.keys() if bo_obj.bdata.name in ob.vertex_groups}
valid_idxs = set(bo_vg_idx.values())
vgroups = {vg.index: OrderedDict() for vg in ob.vertex_groups}
verts_vgroups = (sorted(((vg.group, vg.weight) for vg in v.groups if vg.weight and vg.group in valid_idxs),
key=lambda e: e[1], reverse=True)
for v in me.vertices)
for idx, vgs in enumerate(verts_vgroups):
for vg_idx, w in vgs:
vgroups[vg_idx][idx] = w
for bo_obj, clstr_key in clusters.items():
bo = bo_obj.bdata
# Find which vertices are affected by this bone/vgroup pair, and matching weights.
# Note we still write a cluster for bones not affecting the mesh, to get 'rest pose' data
# (the TransformBlah matrices).
vg_idx = bo_vg_idx.get(bo.name, None)
indices, weights = ((), ()) if vg_idx is None or not vgroups[vg_idx] else zip(*vgroups[vg_idx].items())
# Create the cluster.
fbx_clstr = elem_data_single_int64(root, b"Deformer", get_fbx_uuid_from_key(clstr_key))
fbx_clstr.add_string(fbx_name_class(bo.name.encode(), b"SubDeformer"))
fbx_clstr.add_string(b"Cluster")
elem_data_single_int32(fbx_clstr, b"Version", FBX_DEFORMER_CLUSTER_VERSION)
# No idea what that user data might be...
fbx_userdata = elem_data_single_string(fbx_clstr, b"UserData", b"")
fbx_userdata.add_string(b"")
elem_data_single_int32_array(fbx_clstr, b"Indexes", indices)
elem_data_single_float64_array(fbx_clstr, b"Weights", weights)
# Transform, TransformLink and TransformAssociateModel matrices...
# They seem to be doublons of BindPose ones??? Have armature (associatemodel) in addition, though.
# WARNING! Even though official FBX API presents Transform in global space,
# **it is stored in bone space in FBX data!** See:
# http://area.autodesk.com/forum/autodesk-fbx/fbx-sdk/why-the-values-return-
# by-fbxcluster-gettransformmatrix-x-not-same-with-the-value-in-ascii-fbx-file/
elem_data_single_float64_array(fbx_clstr, b"Transform",
matrix4_to_array(mat_world_bones[bo_obj].inverted() * mat_world_obj))
elem_data_single_float64_array(fbx_clstr, b"TransformLink", matrix4_to_array(mat_world_bones[bo_obj]))
elem_data_single_float64_array(fbx_clstr, b"TransformAssociateModel", matrix4_to_array(mat_world_arm))
def fbx_data_object_elements(root, ob_obj, scene_data):
"""
Write the Object (Model) data blocks.
Note this "Model" can also be bone or dupli!
"""
obj_type = b"Null" # default, sort of empty...
if ob_obj.is_bone:
obj_type = b"LimbNode"
elif (ob_obj.type in BLENDER_OBJECT_TYPES_MESHLIKE):
obj_type = b"Mesh"
elif (ob_obj.type == 'LAMP'):
obj_type = b"Light"
elif (ob_obj.type == 'CAMERA'):
obj_type = b"Camera"
model = elem_data_single_int64(root, b"Model", ob_obj.fbx_uuid)
model.add_string(fbx_name_class(ob_obj.name.encode(), b"Model"))
model.add_string(obj_type)
elem_data_single_int32(model, b"Version", FBX_MODELS_VERSION)
# Object transform info.
loc, rot, scale, matrix, matrix_rot = ob_obj.fbx_object_tx(scene_data)
rot = tuple(convert_rad_to_deg_iter(rot))
tmpl = elem_props_template_init(scene_data.templates, b"Model")
# For now add only loc/rot/scale...
props = elem_properties(model)
elem_props_template_set(tmpl, props, "p_lcl_translation", b"Lcl Translation", loc)
elem_props_template_set(tmpl, props, "p_lcl_rotation", b"Lcl Rotation", rot)
elem_props_template_set(tmpl, props, "p_lcl_scaling", b"Lcl Scaling", scale)
elem_props_template_set(tmpl, props, "p_visibility", b"Visibility", float(not ob_obj.hide))
# Absolutely no idea what this is, but seems mandatory for validity of the file, and defaults to
# invalid -1 value...
elem_props_template_set(tmpl, props, "p_integer", b"DefaultAttributeIndex", 0)
elem_props_template_set(tmpl, props, "p_enum", b"InheritType", 1) # RSrs
# Custom properties.
if scene_data.settings.use_custom_props:
fbx_data_element_custom_properties(props, ob_obj.bdata)
# Those settings would obviously need to be edited in a complete version of the exporter, may depends on
# object type, etc.
elem_data_single_int32(model, b"MultiLayer", 0)
elem_data_single_int32(model, b"MultiTake", 0)
elem_data_single_bool(model, b"Shading", True)
elem_data_single_string(model, b"Culling", b"CullingOff")
if obj_type == b"Camera":
# Why, oh why are FBX cameras such a mess???
# And WHY add camera data HERE??? Not even sure this is needed...
render = scene_data.scene.render
width = render.resolution_x * 1.0
height = render.resolution_y * 1.0
elem_props_template_set(tmpl, props, "p_enum", b"ResolutionMode", 0) # Don't know what it means
elem_props_template_set(tmpl, props, "p_double", b"AspectW", width)
elem_props_template_set(tmpl, props, "p_double", b"AspectH", height)
elem_props_template_set(tmpl, props, "p_bool", b"ViewFrustum", True)
elem_props_template_set(tmpl, props, "p_enum", b"BackgroundMode", 0) # Don't know what it means
elem_props_template_set(tmpl, props, "p_bool", b"ForegroundTransparent", True)
elem_props_template_finalize(tmpl, props)
def fbx_data_animation_elements(root, scene_data):
"""
Write animation data.
"""
animations = scene_data.animations
if not animations:
return
scene = scene_data.scene
fps = scene.render.fps / scene.render.fps_base
def keys_to_ktimes(keys):
return (int(v) for v in convert_sec_to_ktime_iter((f / fps for f, _v in keys)))
# Animation stacks.
for astack_key, alayers, alayer_key, name, f_start, f_end in animations:
astack = elem_data_single_int64(root, b"AnimationStack", get_fbx_uuid_from_key(astack_key))
astack.add_string(fbx_name_class(name, b"AnimStack"))
astack.add_string(b"")
astack_tmpl = elem_props_template_init(scene_data.templates, b"AnimationStack")
astack_props = elem_properties(astack)
r = scene_data.scene.render
fps = r.fps / r.fps_base
start = int(convert_sec_to_ktime(f_start / fps))
end = int(convert_sec_to_ktime(f_end / fps))
elem_props_template_set(astack_tmpl, astack_props, "p_timestamp", b"LocalStart", start)
elem_props_template_set(astack_tmpl, astack_props, "p_timestamp", b"LocalStop", end)
elem_props_template_set(astack_tmpl, astack_props, "p_timestamp", b"ReferenceStart", start)
elem_props_template_set(astack_tmpl, astack_props, "p_timestamp", b"ReferenceStop", end)
elem_props_template_finalize(astack_tmpl, astack_props)
# For now, only one layer for all animations.
alayer = elem_data_single_int64(root, b"AnimationLayer", get_fbx_uuid_from_key(alayer_key))
alayer.add_string(fbx_name_class(name, b"AnimLayer"))
alayer.add_string(b"")
for ob_obj, (alayer_key, acurvenodes) in alayers.items():
# Animation layer.
# alayer = elem_data_single_int64(root, b"AnimationLayer", get_fbx_uuid_from_key(alayer_key))
# alayer.add_string(fbx_name_class(ob_obj.name.encode(), b"AnimLayer"))
# alayer.add_string(b"")
for fbx_prop, (acurvenode_key, acurves, acurvenode_name) in acurvenodes.items():
# Animation curve node.
acurvenode = elem_data_single_int64(root, b"AnimationCurveNode", get_fbx_uuid_from_key(acurvenode_key))
acurvenode.add_string(fbx_name_class(acurvenode_name.encode(), b"AnimCurveNode"))
acurvenode.add_string(b"")
acn_tmpl = elem_props_template_init(scene_data.templates, b"AnimationCurveNode")
acn_props = elem_properties(acurvenode)
for fbx_item, (acurve_key, def_value, keys, _acurve_valid) in acurves.items():
elem_props_template_set(acn_tmpl, acn_props, "p_number", fbx_item.encode(),
def_value, animatable=True)
# Only create Animation curve if needed!
if keys:
acurve = elem_data_single_int64(root, b"AnimationCurve", get_fbx_uuid_from_key(acurve_key))
acurve.add_string(fbx_name_class(b"", b"AnimCurve"))
acurve.add_string(b"")
# key attributes...
nbr_keys = len(keys)
# flags...
keyattr_flags = (
1 << 2 | # interpolation mode, 1 = constant, 2 = linear, 3 = cubic.
1 << 8 | # tangent mode, 8 = auto, 9 = TCB, 10 = user, 11 = generic break,
1 << 13 | # tangent mode, 12 = generic clamp, 13 = generic time independent,
1 << 14 | # tangent mode, 13 + 14 = generic clamp progressive.
0,
)
# Maybe values controlling TCB & co???
keyattr_datafloat = (0.0, 0.0, 9.419963346924634e-30, 0.0)
# And now, the *real* data!
elem_data_single_float64(acurve, b"Default", def_value)
elem_data_single_int32(acurve, b"KeyVer", FBX_ANIM_KEY_VERSION)
elem_data_single_int64_array(acurve, b"KeyTime", keys_to_ktimes(keys))
elem_data_single_float32_array(acurve, b"KeyValueFloat", (v for _f, v in keys))
elem_data_single_int32_array(acurve, b"KeyAttrFlags", keyattr_flags)
elem_data_single_float32_array(acurve, b"KeyAttrDataFloat", keyattr_datafloat)
elem_data_single_int32_array(acurve, b"KeyAttrRefCount", (nbr_keys,))
elem_props_template_finalize(acn_tmpl, acn_props)
# ##### Top-level FBX data container. #####
def fbx_mat_properties_from_texture(tex):
"""
Returns a set of FBX metarial properties that are affected by the given texture.
Quite obviously, this is a fuzzy and far-from-perfect mapping! Amounts of influence are completely lost, e.g.
Note tex is actually expected to be a texture slot.
"""
# Mapping Blender -> FBX (blend_use_name, blend_fact_name, fbx_name).
blend_to_fbx = (
# Lambert & Phong...
("diffuse", "diffuse", b"DiffuseFactor"),
("color_diffuse", "diffuse_color", b"DiffuseColor"),
("alpha", "alpha", b"TransparencyFactor"),
("diffuse", "diffuse", b"TransparentColor"), # Uses diffuse color in Blender!
("emit", "emit", b"EmissiveFactor"),
("diffuse", "diffuse", b"EmissiveColor"), # Uses diffuse color in Blender!
("ambient", "ambient", b"AmbientFactor"),
# ("", "", b"AmbientColor"), # World stuff in Blender, for now ignore...
("normal", "normal", b"NormalMap"),
# Note: unsure about those... :/
# ("", "", b"Bump"),
# ("", "", b"BumpFactor"),
# ("", "", b"DisplacementColor"),
# ("", "", b"DisplacementFactor"),
# Phong only.
("specular", "specular", b"SpecularFactor"),
("color_spec", "specular_color", b"SpecularColor"),
# See Material template about those two!
("hardness", "hardness", b"Shininess"),
("hardness", "hardness", b"ShininessExponent"),
("mirror", "mirror", b"ReflectionColor"),
("raymir", "raymir", b"ReflectionFactor"),
)
tex_fbx_props = set()
for use_map_name, name_factor, fbx_prop_name in blend_to_fbx:
# Always export enabled textures, even if they have a null influence...
if getattr(tex, "use_map_" + use_map_name):
tex_fbx_props.add(fbx_prop_name)
return tex_fbx_props
def fbx_skeleton_from_armature(scene, settings, arm_obj, objects, data_meshes,
data_bones, data_deformers_skin, arm_parents):
"""
Create skeleton from armature/bones (NodeAttribute/LimbNode and Model/LimbNode), and for each deformed mesh,
create Pose/BindPose(with sub PoseNode) and Deformer/Skin(with Deformer/SubDeformer/Cluster).
Also supports "parent to bone" (simple parent to Model/LimbNode).
arm_parents is a set of tuples (armature, object) for all successful armature bindings.
"""
arm_data = arm_obj.bdata.data
bones = OrderedDict()
for bo in arm_obj.bones:
if settings.use_armature_deform_only:
if bo.bdata.use_deform:
bones[bo] = True
bo_par = bo.parent
while bo_par.is_bone:
bones[bo_par] = True
bo_par = bo_par.parent
elif bo not in bones: # Do not override if already set in the loop above!
bones[bo] = False
else:
bones[bo] = True
bones = OrderedDict((bo, None) for bo, use in bones.items() if use)
if not bones:
return
data_bones.update((bo, get_blender_bone_key(arm_obj.bdata, bo.bdata)) for bo in bones)
for ob_obj in objects:
if not (ob_obj.is_object and ob_obj.type == 'MESH' and ob_obj.parent == arm_obj):
continue
# Always handled by an Armature modifier...
found = False
for mod in ob_obj.bdata.modifiers:
if mod.type not in {'ARMATURE'}:
continue
# We only support vertex groups binding method, not bone envelopes one!
if mod.object == arm_obj.bdata and mod.use_vertex_groups:
found = True
break
if not found:
continue
# Now we have a mesh using this armature.
# Note: bindpose have no relations at all (no connections), so no need for any preprocess for them.
# Create skin & clusters relations (note skins are connected to geometry, *not* model!).
_key, me, _free = data_meshes[ob_obj]
clusters = OrderedDict((bo, get_blender_bone_cluster_key(arm_obj.bdata, me, bo.bdata)) for bo in bones)
data_deformers_skin.setdefault(arm_obj, OrderedDict())[me] = (get_blender_armature_skin_key(arm_obj.bdata, me),
ob_obj, clusters)
# We don't want a regular parent relationship for those in FBX...
arm_parents.add((arm_obj, ob_obj))
# Needed to handle matrices/spaces (since we do not parent them to 'armature' in FBX :/ ).
ob_obj.parented_to_armature = True
objects.update(bones)
def fbx_animations_do(scene_data, ref_id, f_start, f_end, start_zero, objects=None, force_keep=False):
"""
Generate animation data (a single AnimStack) from objects, for a given frame range.
"""
bake_step = scene_data.settings.bake_anim_step
scene = scene_data.scene
meshes = scene_data.data_meshes
if objects is not None:
# Add bones and duplis!
for ob_obj in tuple(objects):
if not ob_obj.is_object:
continue
if ob_obj.type == 'ARMATURE':
objects |= {bo_obj for bo_obj in ob_obj.bones if bo_obj in scene_data.objects}
ob_obj.dupli_list_create(scene, 'RENDER')
for dp_obj in ob_obj.dupli_list:
if dp_obj in scene_data.objects:
objects.add(dp_obj)
ob_obj.dupli_list_clear()
else:
objects = scene_data.objects
back_currframe = scene.frame_current
animdata_ob = OrderedDict((ob_obj, (AnimationCurveNodeWrapper(ob_obj.key, 'LCL_TRANSLATION', (0.0, 0.0, 0.0)),
AnimationCurveNodeWrapper(ob_obj.key, 'LCL_ROTATION', (0.0, 0.0, 0.0)),
AnimationCurveNodeWrapper(ob_obj.key, 'LCL_SCALING', (1.0, 1.0, 1.0))))
for ob_obj in objects)
animdata_shapes = OrderedDict()
for me, (me_key, _shapes_key, shapes) in scene_data.data_deformers_shape.items():
# Ignore absolute shape keys for now!
if not me.shape_keys.use_relative:
continue
for shape, (channel_key, geom_key, _shape_verts_co, _shape_verts_idx) in shapes.items():
acnode = AnimationCurveNodeWrapper(channel_key, 'SHAPE_KEY', (0.0,))
# Sooooo happy to have to twist again like a mad snake... Yes, we need to write those curves twice. :/
acnode.add_group(me_key, shape.name, shape.name, (shape.name,))
animdata_shapes[channel_key] = (acnode, me, shape)
p_rots = {}
currframe = f_start
while currframe < f_end:
real_currframe = currframe - f_start if start_zero else currframe
scene.frame_set(int(currframe), currframe - int(currframe))
for ob_obj in animdata_ob:
ob_obj.dupli_list_create(scene, 'RENDER')
for ob_obj, (anim_loc, anim_rot, anim_scale) in animdata_ob.items():
# We compute baked loc/rot/scale for all objects (rot being euler-compat with previous value!).
p_rot = p_rots.get(ob_obj, None)
loc, rot, scale, _m, _mr = ob_obj.fbx_object_tx(scene_data, rot_euler_compat=p_rot)
p_rots[ob_obj] = rot
anim_loc.add_keyframe(real_currframe, loc)
anim_rot.add_keyframe(real_currframe, tuple(convert_rad_to_deg_iter(rot)))
anim_scale.add_keyframe(real_currframe, scale)
for ob_obj in objects:
ob_obj.dupli_list_clear()
for anim_shape, me, shape in animdata_shapes.values():
anim_shape.add_keyframe(real_currframe, (shape.value * 100.0,))
currframe += bake_step
scene.frame_set(back_currframe, 0.0)
animations = OrderedDict()
simplify_fac = scene_data.settings.bake_anim_simplify_factor
# And now, produce final data (usable by FBX export code)
# Objects-like loc/rot/scale...
for ob_obj, anims in animdata_ob.items():
for anim in anims:
anim.simplfy(simplify_fac, bake_step, force_keep)
if not anim:
continue
for obj_key, group_key, group, fbx_group, fbx_gname in anim.get_final_data(scene, ref_id, force_keep):
anim_data = animations.get(obj_key)
if anim_data is None:
anim_data = animations[obj_key] = ("dummy_unused_key", OrderedDict())
anim_data[1][fbx_group] = (group_key, group, fbx_gname)
# And meshes' shape keys.
for channel_key, (anim_shape, me, shape) in animdata_shapes.items():
final_keys = OrderedDict()
anim_shape.simplfy(simplify_fac, bake_step, force_keep)
if not anim_shape:
continue
for elem_key, group_key, group, fbx_group, fbx_gname in anim_shape.get_final_data(scene, ref_id, force_keep):
anim_data = animations.get(elem_key)
if anim_data is None:
anim_data = animations[elem_key] = ("dummy_unused_key", OrderedDict())
anim_data[1][fbx_group] = (group_key, group, fbx_gname)
astack_key = get_blender_anim_stack_key(scene, ref_id)
alayer_key = get_blender_anim_layer_key(scene, ref_id)
name = (get_blenderID_name(ref_id) if ref_id else scene.name).encode()
if start_zero:
f_end -= f_start
f_start = 0.0
return (astack_key, animations, alayer_key, name, f_start, f_end) if animations else None
def fbx_animations(scene_data):
"""
Generate global animation data from objects.
"""
scene = scene_data.scene
animations = []
frame_start = 1e100
frame_end = -1e100
def add_anim(animations, anim):
nonlocal frame_start, frame_end
if anim is not None:
animations.append(anim)
f_start, f_end = anim[4:6]
if f_start < frame_start:
frame_start = f_start
if f_end > frame_end:
frame_end = f_end
# Per-NLA strip animstacks.
if scene_data.settings.bake_anim_use_nla_strips:
strips = []
for ob_obj in scene_data.objects:
# NLA tracks only for objects, not bones!
if not ob_obj.is_object:
continue
ob = ob_obj.bdata # Back to real Blender Object.
if not ob.animation_data:
continue
for track in ob.animation_data.nla_tracks:
if track.mute:
continue
for strip in track.strips:
if strip.mute:
continue
strips.append(strip)
strip.mute = True
for strip in strips:
strip.mute = False
add_anim(animations, fbx_animations_do(scene_data, strip, strip.frame_start, strip.frame_end, True))
strip.mute = True
for strip in strips:
strip.mute = False
# All actions.
if scene_data.settings.bake_anim_use_all_actions:
def validate_actions(act, path_resolve):
for fc in act.fcurves:
data_path = fc.data_path
if fc.array_index:
data_path = data_path + "[%d]" % fc.array_index
try:
path_resolve(data_path)
except ValueError:
return False # Invalid.
return True # Valid.
def restore_object(ob_to, ob_from):
# Restore org state of object (ugh :/ ).
props = (
'location', 'rotation_quaternion', 'rotation_axis_angle', 'rotation_euler', 'rotation_mode', 'scale',
'delta_location', 'delta_rotation_euler', 'delta_rotation_quaternion', 'delta_scale',
'lock_location', 'lock_rotation', 'lock_rotation_w', 'lock_rotations_4d', 'lock_scale',
'tag', 'layers', 'select', 'track_axis', 'up_axis', 'active_material', 'active_material_index',
'matrix_parent_inverse', 'empty_draw_type', 'empty_draw_size', 'empty_image_offset', 'pass_index',
'color', 'hide', 'hide_select', 'hide_render', 'use_slow_parent', 'slow_parent_offset',
'use_extra_recalc_object', 'use_extra_recalc_data', 'dupli_type', 'use_dupli_frames_speed',
'use_dupli_vertices_rotation', 'use_dupli_faces_scale', 'dupli_faces_scale', 'dupli_group',
'dupli_frames_start', 'dupli_frames_end', 'dupli_frames_on', 'dupli_frames_off',
'draw_type', 'show_bounds', 'draw_bounds_type', 'show_name', 'show_axis', 'show_texture_space',
'show_wire', 'show_all_edges', 'show_transparent', 'show_x_ray',
'show_only_shape_key', 'use_shape_key_edit_mode', 'active_shape_key_index',
)
for p in props:
setattr(ob_to, p, getattr(ob_from, p))
for ob_obj in scene_data.objects:
# Actions only for objects, not bones!
if not ob_obj.is_object:
continue
ob = ob_obj.bdata # Back to real Blender Object.
# We can't play with animdata and actions and get back to org state easily.
# So we have to add a temp copy of the object to the scene, animate it, and remove it... :/
ob_copy = ob.copy()
# Great, have to handle bones as well if needed...
pbones_matrices = [pbo.matrix_basis.copy() for pbo in ob.pose.bones] if ob.type == 'ARMATURE' else ...
if ob.animation_data:
org_act = ob.animation_data.action
else:
org_act = ...
ob.animation_data_create()
path_resolve = ob.path_resolve
for act in bpy.data.actions:
# For now, *all* paths in the action must be valid for the object, to validate the action.
# Unless that action was already assigned to the object!
if act != org_act and not validate_actions(act, path_resolve):
continue
ob.animation_data.action = act
frame_start, frame_end = act.frame_range # sic!
add_anim(animations,
fbx_animations_do(scene_data, (ob, act), frame_start, frame_end, True, {ob_obj}, True))
# Ugly! :/
if pbones_matrices is not ...:
for pbo, mat in zip(ob.pose.bones, pbones_matrices):
pbo.matrix_basis = mat.copy()
ob.animation_data.action = None if org_act is ... else org_act
restore_object(ob, ob_copy)
if pbones_matrices is not ...:
for pbo, mat in zip(ob.pose.bones, pbones_matrices):
pbo.matrix_basis = mat.copy()
if org_act is ...:
ob.animation_data_clear()
else:
ob.animation_data.action = org_act
bpy.data.objects.remove(ob_copy)
# Global (containing everything) animstack.
if not scene_data.settings.bake_anim_use_nla_strips or not animations:
add_anim(animations, fbx_animations_do(scene_data, None, scene.frame_start, scene.frame_end, False))
# Be sure to update all matrices back to org state!
scene.frame_set(scene.frame_current, 0.0)
return animations, frame_start, frame_end
def fbx_data_from_scene(scene, settings):
"""
Do some pre-processing over scene's data...
"""
objtypes = settings.object_types
# ##### Gathering data...
# This is rather simple for now, maybe we could end generating templates with most-used values
# instead of default ones?
objects = OrderedDict() # Because we do not have any ordered set...
for ob in settings.context_objects:
if ob.type not in objtypes:
continue
ob_obj = ObjectWrapper(ob)
objects[ob_obj] = None
# Duplis...
ob_obj.dupli_list_create(scene, 'RENDER')
for dp_obj in ob_obj.dupli_list:
objects[dp_obj] = None
ob_obj.dupli_list_clear()
data_lamps = OrderedDict((ob_obj.bdata.data, get_blenderID_key(ob_obj.bdata.data))
for ob_obj in objects if ob_obj.type == 'LAMP')
# Unfortunately, FBX camera data contains object-level data (like position, orientation, etc.)...
data_cameras = OrderedDict((ob_obj, get_blenderID_key(ob_obj.bdata.data))
for ob_obj in objects if ob_obj.type == 'CAMERA')
# Yep! Contains nothing, but needed!
data_empties = OrderedDict((ob_obj, get_blender_empty_key(ob_obj.bdata))
for ob_obj in objects if ob_obj.type == 'EMPTY')
data_meshes = OrderedDict()
for ob_obj in objects:
if ob_obj.type not in BLENDER_OBJECT_TYPES_MESHLIKE:
continue
ob = ob_obj.bdata
if ob in data_meshes: # Happens with dupli instances.
continue
use_org_data = True
if settings.use_mesh_modifiers or ob.type in BLENDER_OTHER_OBJECT_TYPES:
use_org_data = False
tmp_mods = []
if ob.type == 'MESH':
# No need to create a new mesh in this case, if no modifier is active!
use_org_data = True
for mod in ob.modifiers:
# For meshes, when armature export is enabled, disable Armature modifiers here!
if mod.type == 'ARMATURE' and 'ARMATURE' in settings.object_types:
tmp_mods.append((mod, mod.show_render))
mod.show_render = False
if mod.show_render:
use_org_data = False
if not use_org_data:
tmp_me = ob.to_mesh(scene, apply_modifiers=True, settings='RENDER')
data_meshes[ob_obj] = (get_blenderID_key(tmp_me), tmp_me, True)
# Re-enable temporary disabled modifiers.
for mod, show_render in tmp_mods:
mod.show_render = show_render
if use_org_data:
data_meshes[ob_obj] = (get_blenderID_key(ob.data), ob.data, False)
# ShapeKeys.
data_deformers_shape = OrderedDict()
for me_key, me, _org in data_meshes.values():
if not (me.shape_keys and me.shape_keys.key_blocks):
continue
shapes_key = get_blender_mesh_shape_key(me)
for shape in me.shape_keys.key_blocks:
# Only write vertices really different from org coordinates!
# XXX FBX does not like empty shapes (makes Unity crash e.g.), so we have to do this here... :/
shape_verts_co = []
shape_verts_idx = []
for idx, (sv, v) in enumerate(zip(shape.data, me.vertices)):
if similar_values_iter(sv.co, v.co):
# Note: Maybe this is a bit too simplistic, should we use real shape base here? Though FBX does not
# have this at all... Anyway, this should cover most common cases imho.
continue
shape_verts_co.extend(sv.co - v.co)
shape_verts_idx.append(idx)
if not shape_verts_co:
continue
channel_key, geom_key = get_blender_mesh_shape_channel_key(me, shape)
data = (channel_key, geom_key, shape_verts_co, shape_verts_idx)
data_deformers_shape.setdefault(me, (me_key, shapes_key, OrderedDict()))[2][shape] = data
# Armatures!
data_deformers_skin = OrderedDict()
data_bones = OrderedDict()
arm_parents = set()
for ob_obj in tuple(objects):
if not (ob_obj.is_object and ob_obj.type in {'ARMATURE'}):
continue
fbx_skeleton_from_armature(scene, settings, ob_obj, objects, data_meshes,
data_bones, data_deformers_skin, arm_parents)
# Some world settings are embedded in FBX materials...
if scene.world:
data_world = OrderedDict(((scene.world, get_blenderID_key(scene.world)),))
else:
data_world = OrderedDict()
# TODO: Check all the mat stuff works even when mats are linked to Objects
# (we can then have the same mesh used with different materials...).
# *Should* work, as FBX always links its materials to Models (i.e. objects).
# XXX However, material indices would probably break...
data_materials = OrderedDict()
for ob_obj in objects:
# If obj is not a valid object for materials, wrapper will just return an empty tuple...
for mat_s in ob_obj.material_slots:
mat = mat_s.material
if mat is None:
continue # Empty slots!
# Note theoretically, FBX supports any kind of materials, even GLSL shaders etc.
# However, I doubt anything else than Lambert/Phong is really portable!
# We support any kind of 'surface' shader though, better to have some kind of default Lambert than nothing.
# Note we want to keep a 'dummy' empty mat even when we can't really support it, see T41396.
mat_data = data_materials.get(mat)
if mat_data is not None:
mat_data[1].append(ob_obj)
else:
data_materials[mat] = (get_blenderID_key(mat), [ob_obj])
# Note FBX textures also hold their mapping info.
# TODO: Support layers?
data_textures = OrderedDict()
# FbxVideo also used to store static images...
data_videos = OrderedDict()
# For now, do not use world textures, don't think they can be linked to anything FBX wise...
for mat in data_materials.keys():
if check_skip_material(mat):
continue
for tex, use_tex in zip(mat.texture_slots, mat.use_textures):
if tex is None or not use_tex:
continue
# For now, only consider image textures.
# Note FBX does has support for procedural, but this is not portable at all (opaque blob),
# so not useful for us.
# TODO I think ENVIRONMENT_MAP should be usable in FBX as well, but for now let it aside.
# if tex.texture.type not in {'IMAGE', 'ENVIRONMENT_MAP'}:
if tex.texture.type not in {'IMAGE'}:
continue
img = tex.texture.image
if img is None:
continue
# Find out whether we can actually use this texture for this material, in FBX context.
tex_fbx_props = fbx_mat_properties_from_texture(tex)
if not tex_fbx_props:
continue
tex_data = data_textures.get(tex)
if tex_data is not None:
tex_data[1][mat] = tex_fbx_props
else:
data_textures[tex] = (get_blenderID_key(tex), OrderedDict(((mat, tex_fbx_props),)))
vid_data = data_videos.get(img)
if vid_data is not None:
vid_data[1].append(tex)
else:
data_videos[img] = (get_blenderID_key(img), [tex])
# Animation...
animations = ()
frame_start = scene.frame_start
frame_end = scene.frame_end
if settings.bake_anim:
# From objects & bones only for a start.
# Kind of hack, we need a temp scene_data for object's space handling to bake animations...
tmp_scdata = FBXExportData(
None, None, None,
settings, scene, objects, None, 0.0, 0.0,
data_empties, data_lamps, data_cameras, data_meshes, None,
data_bones, data_deformers_skin, data_deformers_shape,
data_world, data_materials, data_textures, data_videos,
)
animations, frame_start, frame_end = fbx_animations(tmp_scdata)
# ##### Creation of templates...
templates = OrderedDict()
templates[b"GlobalSettings"] = fbx_template_def_globalsettings(scene, settings, nbr_users=1)
if data_empties:
templates[b"Null"] = fbx_template_def_null(scene, settings, nbr_users=len(data_empties))
if data_lamps:
templates[b"Light"] = fbx_template_def_light(scene, settings, nbr_users=len(data_lamps))
if data_cameras:
templates[b"Camera"] = fbx_template_def_camera(scene, settings, nbr_users=len(data_cameras))
if data_bones:
templates[b"Bone"] = fbx_template_def_bone(scene, settings, nbr_users=len(data_bones))
if data_meshes:
nbr = len(data_meshes)
if data_deformers_shape:
nbr += sum(len(shapes[2]) for shapes in data_deformers_shape.values())
templates[b"Geometry"] = fbx_template_def_geometry(scene, settings, nbr_users=nbr)
if objects:
templates[b"Model"] = fbx_template_def_model(scene, settings, nbr_users=len(objects))
if arm_parents:
# Number of Pose|BindPose elements should be the same as number of meshes-parented-to-armatures
templates[b"BindPose"] = fbx_template_def_pose(scene, settings, nbr_users=len(arm_parents))
if data_deformers_skin or data_deformers_shape:
nbr = 0
if data_deformers_skin:
nbr += len(data_deformers_skin)
nbr += sum(len(clusters) for def_me in data_deformers_skin.values() for a, b, clusters in def_me.values())
if data_deformers_shape:
nbr += len(data_deformers_shape)
nbr += sum(len(shapes[2]) for shapes in data_deformers_shape.values())
assert(nbr != 0)
templates[b"Deformers"] = fbx_template_def_deformer(scene, settings, nbr_users=nbr)
# No world support in FBX...
"""
if data_world:
templates[b"World"] = fbx_template_def_world(scene, settings, nbr_users=len(data_world))
"""
if data_materials:
templates[b"Material"] = fbx_template_def_material(scene, settings, nbr_users=len(data_materials))
if data_textures:
templates[b"TextureFile"] = fbx_template_def_texture_file(scene, settings, nbr_users=len(data_textures))
if data_videos:
templates[b"Video"] = fbx_template_def_video(scene, settings, nbr_users=len(data_videos))
if animations:
nbr_astacks = len(animations)
nbr_acnodes = 0
nbr_acurves = 0
for _astack_key, astack, _al, _n, _fs, _fe in animations:
for _alayer_key, alayer in astack.values():
for _acnode_key, acnode, _acnode_name in alayer.values():
nbr_acnodes += 1
for _acurve_key, _dval, acurve, acurve_valid in acnode.values():
if acurve:
nbr_acurves += 1
templates[b"AnimationStack"] = fbx_template_def_animstack(scene, settings, nbr_users=nbr_astacks)
# Would be nice to have one layer per animated object, but this seems tricky and not that well supported.
# So for now, only one layer per anim stack.
templates[b"AnimationLayer"] = fbx_template_def_animlayer(scene, settings, nbr_users=nbr_astacks)
templates[b"AnimationCurveNode"] = fbx_template_def_animcurvenode(scene, settings, nbr_users=nbr_acnodes)
templates[b"AnimationCurve"] = fbx_template_def_animcurve(scene, settings, nbr_users=nbr_acurves)
templates_users = sum(tmpl.nbr_users for tmpl in templates.values())
# ##### Creation of connections...
connections = []
# Objects (with classical parenting).
for ob_obj in objects:
# Bones are handled later.
if not ob_obj.is_bone:
par_obj = ob_obj.parent
# Meshes parented to armature are handled separately, yet we want the 'no parent' connection (0).
if par_obj and ob_obj.has_valid_parent(objects) and (par_obj, ob_obj) not in arm_parents:
connections.append((b"OO", ob_obj.fbx_uuid, par_obj.fbx_uuid, None))
else:
connections.append((b"OO", ob_obj.fbx_uuid, 0, None))
# Armature & Bone chains.
for bo_obj in data_bones.keys():
par_obj = bo_obj.parent
if par_obj not in objects:
continue
connections.append((b"OO", bo_obj.fbx_uuid, par_obj.fbx_uuid, None))
# Object data.
for ob_obj in objects:
if ob_obj.is_bone:
bo_data_key = data_bones[ob_obj]
connections.append((b"OO", get_fbx_uuid_from_key(bo_data_key), ob_obj.fbx_uuid, None))
else:
if ob_obj.type == 'LAMP':
lamp_key = data_lamps[ob_obj.bdata.data]
connections.append((b"OO", get_fbx_uuid_from_key(lamp_key), ob_obj.fbx_uuid, None))
elif ob_obj.type == 'CAMERA':
cam_key = data_cameras[ob_obj]
connections.append((b"OO", get_fbx_uuid_from_key(cam_key), ob_obj.fbx_uuid, None))
elif ob_obj.type == 'EMPTY':
empty_key = data_empties[ob_obj]
connections.append((b"OO", get_fbx_uuid_from_key(empty_key), ob_obj.fbx_uuid, None))
elif ob_obj.type in BLENDER_OBJECT_TYPES_MESHLIKE:
mesh_key, _me, _free = data_meshes[ob_obj]
connections.append((b"OO", get_fbx_uuid_from_key(mesh_key), ob_obj.fbx_uuid, None))
# 'Shape' deformers (shape keys, only for meshes currently)...
for me_key, shapes_key, shapes in data_deformers_shape.values():
# shape -> geometry
connections.append((b"OO", get_fbx_uuid_from_key(shapes_key), get_fbx_uuid_from_key(me_key), None))
for channel_key, geom_key, _shape_verts_co, _shape_verts_idx in shapes.values():
# shape channel -> shape
connections.append((b"OO", get_fbx_uuid_from_key(channel_key), get_fbx_uuid_from_key(shapes_key), None))
# geometry (keys) -> shape channel
connections.append((b"OO", get_fbx_uuid_from_key(geom_key), get_fbx_uuid_from_key(channel_key), None))
# 'Skin' deformers (armature-to-geometry, only for meshes currently)...
for arm, deformed_meshes in data_deformers_skin.items():
for me, (skin_key, ob_obj, clusters) in deformed_meshes.items():
# skin -> geometry
mesh_key, _me, _free = data_meshes[ob_obj]
assert(me == _me)
connections.append((b"OO", get_fbx_uuid_from_key(skin_key), get_fbx_uuid_from_key(mesh_key), None))
for bo_obj, clstr_key in clusters.items():
# cluster -> skin
connections.append((b"OO", get_fbx_uuid_from_key(clstr_key), get_fbx_uuid_from_key(skin_key), None))
# bone -> cluster
connections.append((b"OO", bo_obj.fbx_uuid, get_fbx_uuid_from_key(clstr_key), None))
# Materials
mesh_mat_indices = OrderedDict()
_objs_indices = {}
for mat, (mat_key, ob_objs) in data_materials.items():
for ob_obj in ob_objs:
connections.append((b"OO", get_fbx_uuid_from_key(mat_key), ob_obj.fbx_uuid, None))
# Get index of this mat for this object (or dupliobject).
# Mat indices for mesh faces are determined by their order in 'mat to ob' connections.
# Only mats for meshes currently...
# Note in case of dupliobjects a same me/mat idx will be generated several times...
# Should not be an issue in practice, and it's needed in case we export duplis but not the original!
if ob_obj.type not in BLENDER_OBJECT_TYPES_MESHLIKE:
continue
_mesh_key, me, _free = data_meshes[ob_obj]
idx = _objs_indices[ob_obj] = _objs_indices.get(ob_obj, -1) + 1
mesh_mat_indices.setdefault(me, OrderedDict())[mat] = idx
del _objs_indices
# Textures
for tex, (tex_key, mats) in data_textures.items():
for mat, fbx_mat_props in mats.items():
mat_key, _ob_objs = data_materials[mat]
for fbx_prop in fbx_mat_props:
# texture -> material properties
connections.append((b"OP", get_fbx_uuid_from_key(tex_key), get_fbx_uuid_from_key(mat_key), fbx_prop))
# Images
for vid, (vid_key, texs) in data_videos.items():
for tex in texs:
tex_key, _texs = data_textures[tex]
connections.append((b"OO", get_fbx_uuid_from_key(vid_key), get_fbx_uuid_from_key(tex_key), None))
# Animations
for astack_key, astack, alayer_key, _name, _fstart, _fend in animations:
# Animstack itself is linked nowhere!
astack_id = get_fbx_uuid_from_key(astack_key)
# For now, only one layer!
alayer_id = get_fbx_uuid_from_key(alayer_key)
connections.append((b"OO", alayer_id, astack_id, None))
for elem_key, (alayer_key, acurvenodes) in astack.items():
elem_id = get_fbx_uuid_from_key(elem_key)
# Animlayer -> animstack.
# alayer_id = get_fbx_uuid_from_key(alayer_key)
# connections.append((b"OO", alayer_id, astack_id, None))
for fbx_prop, (acurvenode_key, acurves, acurvenode_name) in acurvenodes.items():
# Animcurvenode -> animalayer.
acurvenode_id = get_fbx_uuid_from_key(acurvenode_key)
connections.append((b"OO", acurvenode_id, alayer_id, None))
# Animcurvenode -> object property.
connections.append((b"OP", acurvenode_id, elem_id, fbx_prop.encode()))
for fbx_item, (acurve_key, default_value, acurve, acurve_valid) in acurves.items():
if acurve:
# Animcurve -> Animcurvenode.
connections.append((b"OP", get_fbx_uuid_from_key(acurve_key), acurvenode_id, fbx_item.encode()))
# ##### And pack all this!
return FBXExportData(
templates, templates_users, connections,
settings, scene, objects, animations, frame_start, frame_end,
data_empties, data_lamps, data_cameras, data_meshes, mesh_mat_indices,
data_bones, data_deformers_skin, data_deformers_shape,
data_world, data_materials, data_textures, data_videos,
)
def fbx_scene_data_cleanup(scene_data):
"""
Some final cleanup...
"""
# Delete temp meshes.
for _key, me, free in scene_data.data_meshes.values():
if free:
bpy.data.meshes.remove(me)
# ##### Top-level FBX elements generators. #####
def fbx_header_elements(root, scene_data, time=None):
"""
Write boiling code of FBX root.
time is expected to be a datetime.datetime object, or None (using now() in this case).
"""
# ##### Start of FBXHeaderExtension element.
header_ext = elem_empty(root, b"FBXHeaderExtension")
elem_data_single_int32(header_ext, b"FBXHeaderVersion", FBX_HEADER_VERSION)
elem_data_single_int32(header_ext, b"FBXVersion", FBX_VERSION)
# No encryption!
elem_data_single_int32(header_ext, b"EncryptionType", 0)
if time is None:
time = datetime.datetime.now()
elem = elem_empty(header_ext, b"CreationTimeStamp")
elem_data_single_int32(elem, b"Version", 1000)
elem_data_single_int32(elem, b"Year", time.year)
elem_data_single_int32(elem, b"Month", time.month)
elem_data_single_int32(elem, b"Day", time.day)
elem_data_single_int32(elem, b"Hour", time.hour)
elem_data_single_int32(elem, b"Minute", time.minute)
elem_data_single_int32(elem, b"Second", time.second)
elem_data_single_int32(elem, b"Millisecond", time.microsecond // 1000)
elem_data_single_string_unicode(header_ext, b"Creator", "Blender version %s" % bpy.app.version_string)
# 'SceneInfo' seems mandatory to get a valid FBX file...
# TODO use real values!
# XXX Should we use scene.name.encode() here?
scene_info = elem_data_single_string(header_ext, b"SceneInfo", fbx_name_class(b"GlobalInfo", b"SceneInfo"))
scene_info.add_string(b"UserData")
elem_data_single_string(scene_info, b"Type", b"UserData")
elem_data_single_int32(scene_info, b"Version", FBX_SCENEINFO_VERSION)
meta_data = elem_empty(scene_info, b"MetaData")
elem_data_single_int32(meta_data, b"Version", FBX_SCENEINFO_VERSION)
elem_data_single_string(meta_data, b"Title", b"")
elem_data_single_string(meta_data, b"Subject", b"")
elem_data_single_string(meta_data, b"Author", b"")
elem_data_single_string(meta_data, b"Keywords", b"")
elem_data_single_string(meta_data, b"Revision", b"")
elem_data_single_string(meta_data, b"Comment", b"")
props = elem_properties(scene_info)
elem_props_set(props, "p_string_url", b"DocumentUrl", "/foobar.fbx")
elem_props_set(props, "p_string_url", b"SrcDocumentUrl", "/foobar.fbx")
original = elem_props_compound(props, b"Original")
original("p_string", b"ApplicationVendor", "Blender Foundation")
original("p_string", b"ApplicationName", "Blender")
original("p_string", b"ApplicationVersion", "2.70")
original("p_datetime", b"DateTime_GMT", "01/01/1970 00:00:00.000")
original("p_string", b"FileName", "/foobar.fbx")
lastsaved = elem_props_compound(props, b"LastSaved")
lastsaved("p_string", b"ApplicationVendor", "Blender Foundation")
lastsaved("p_string", b"ApplicationName", "Blender")
lastsaved("p_string", b"ApplicationVersion", "2.70")
lastsaved("p_datetime", b"DateTime_GMT", "01/01/1970 00:00:00.000")
# ##### End of FBXHeaderExtension element.
# FileID is replaced by dummy value currently...
elem_data_single_bytes(root, b"FileId", b"FooBar")
# CreationTime is replaced by dummy value currently, but anyway...
elem_data_single_string_unicode(root, b"CreationTime",
"{:04}-{:02}-{:02} {:02}:{:02}:{:02}:{:03}"
"".format(time.year, time.month, time.day, time.hour, time.minute, time.second,
time.microsecond * 1000))
elem_data_single_string_unicode(root, b"Creator", "Blender version %s" % bpy.app.version_string)
# ##### Start of GlobalSettings element.
global_settings = elem_empty(root, b"GlobalSettings")
scene = scene_data.scene
elem_data_single_int32(global_settings, b"Version", 1000)
props = elem_properties(global_settings)
up_axis, front_axis, coord_axis = RIGHT_HAND_AXES[scene_data.settings.to_axes]
# Currently not sure about that, but looks like default unit of FBX is cm...
scale_factor = (1.0 if scene.unit_settings.system == 'NONE' else scene.unit_settings.scale_length) * 100
elem_props_set(props, "p_integer", b"UpAxis", up_axis[0])
elem_props_set(props, "p_integer", b"UpAxisSign", up_axis[1])
elem_props_set(props, "p_integer", b"FrontAxis", front_axis[0])
elem_props_set(props, "p_integer", b"FrontAxisSign", front_axis[1])
elem_props_set(props, "p_integer", b"CoordAxis", coord_axis[0])
elem_props_set(props, "p_integer", b"CoordAxisSign", coord_axis[1])
elem_props_set(props, "p_integer", b"OriginalUpAxis", -1)
elem_props_set(props, "p_integer", b"OriginalUpAxisSign", 1)
elem_props_set(props, "p_double", b"UnitScaleFactor", scale_factor)
elem_props_set(props, "p_double", b"OriginalUnitScaleFactor", scale_factor)
elem_props_set(props, "p_color_rgb", b"AmbientColor", (0.0, 0.0, 0.0))
elem_props_set(props, "p_string", b"DefaultCamera", "Producer Perspective")
# Global timing data.
r = scene.render
_, fbx_fps_mode = FBX_FRAMERATES[0] # Custom framerate.
fbx_fps = fps = r.fps / r.fps_base
for ref_fps, fps_mode in FBX_FRAMERATES:
if similar_values(fps, ref_fps):
fbx_fps = ref_fps
fbx_fps_mode = fps_mode
elem_props_set(props, "p_enum", b"TimeMode", fbx_fps_mode)
elem_props_set(props, "p_timestamp", b"TimeSpanStart", 0)
elem_props_set(props, "p_timestamp", b"TimeSpanStop", FBX_KTIME)
elem_props_set(props, "p_double", b"CustomFrameRate", fbx_fps)
# ##### End of GlobalSettings element.
def fbx_documents_elements(root, scene_data):
"""
Write 'Document' part of FBX root.
Seems like FBX support multiple documents, but until I find examples of such, we'll stick to single doc!
time is expected to be a datetime.datetime object, or None (using now() in this case).
"""
name = scene_data.scene.name
# ##### Start of Documents element.
docs = elem_empty(root, b"Documents")
elem_data_single_int32(docs, b"Count", 1)
doc_uid = get_fbx_uuid_from_key("__FBX_Document__" + name)
doc = elem_data_single_int64(docs, b"Document", doc_uid)
doc.add_string_unicode(name)
doc.add_string_unicode(name)
props = elem_properties(doc)
elem_props_set(props, "p_object", b"SourceObject")
elem_props_set(props, "p_string", b"ActiveAnimStackName", "")
# XXX Some kind of ID? Offset?
# Anyway, as long as we have only one doc, probably not an issue.
elem_data_single_int64(doc, b"RootNode", 0)
def fbx_references_elements(root, scene_data):
"""
Have no idea what references are in FBX currently... Just writing empty element.
"""
docs = elem_empty(root, b"References")
def fbx_definitions_elements(root, scene_data):
"""
Templates definitions. Only used by Objects data afaik (apart from dummy GlobalSettings one).
"""
definitions = elem_empty(root, b"Definitions")
elem_data_single_int32(definitions, b"Version", FBX_TEMPLATES_VERSION)
elem_data_single_int32(definitions, b"Count", scene_data.templates_users)
fbx_templates_generate(definitions, scene_data.templates)
def fbx_objects_elements(root, scene_data):
"""
Data (objects, geometry, material, textures, armatures, etc.
"""
objects = elem_empty(root, b"Objects")
for empty in scene_data.data_empties:
fbx_data_empty_elements(objects, empty, scene_data)
for lamp in scene_data.data_lamps:
fbx_data_lamp_elements(objects, lamp, scene_data)
for cam in scene_data.data_cameras:
fbx_data_camera_elements(objects, cam, scene_data)
done_meshes = set()
for me_obj in scene_data.data_meshes:
fbx_data_mesh_elements(objects, me_obj, scene_data, done_meshes)
del done_meshes
for ob_obj in scene_data.objects:
if ob_obj.is_dupli:
continue
fbx_data_object_elements(objects, ob_obj, scene_data)
ob_obj.dupli_list_create(scene_data.scene, 'RENDER')
for dp_obj in ob_obj.dupli_list:
if dp_obj not in scene_data.objects:
continue
fbx_data_object_elements(objects, dp_obj, scene_data)
ob_obj.dupli_list_clear()
for ob_obj in scene_data.objects:
if not (ob_obj.is_object and ob_obj.type == 'ARMATURE'):
continue
fbx_data_armature_elements(objects, ob_obj, scene_data)
for mat in scene_data.data_materials:
fbx_data_material_elements(objects, mat, scene_data)
for tex in scene_data.data_textures:
fbx_data_texture_file_elements(objects, tex, scene_data)
for vid in scene_data.data_videos:
fbx_data_video_elements(objects, vid, scene_data)
fbx_data_animation_elements(objects, scene_data)
def fbx_connections_elements(root, scene_data):
"""
Relations between Objects (which material uses which texture, and so on).
"""
connections = elem_empty(root, b"Connections")
for c in scene_data.connections:
elem_connection(connections, *c)
def fbx_takes_elements(root, scene_data):
"""
Animations.
"""
# XXX Pretty sure takes are no more needed...
takes = elem_empty(root, b"Takes")
elem_data_single_string(takes, b"Current", b"")
animations = scene_data.animations
for astack_key, animations, alayer_key, name, f_start, f_end in animations:
scene = scene_data.scene
fps = scene.render.fps / scene.render.fps_base
start_ktime = int(convert_sec_to_ktime(f_start / fps))
end_ktime = int(convert_sec_to_ktime(f_end / fps))
take = elem_data_single_string(takes, b"Take", name)
elem_data_single_string(take, b"FileName", name + b".tak")
take_loc_time = elem_data_single_int64(take, b"LocalTime", start_ktime)
take_loc_time.add_int64(end_ktime)
take_ref_time = elem_data_single_int64(take, b"ReferenceTime", start_ktime)
take_ref_time.add_int64(end_ktime)
# ##### "Main" functions. #####
# This func can be called with just the filepath
def save_single(operator, scene, filepath="",
global_matrix=Matrix(),
axis_up="Z",
axis_forward="Y",
context_objects=None,
object_types=None,
use_mesh_modifiers=True,
mesh_smooth_type='FACE',
use_armature_deform_only=False,
bake_anim=True,
bake_anim_use_nla_strips=True,
bake_anim_use_all_actions=True,
bake_anim_step=1.0,
bake_anim_simplify_factor=1.0,
use_metadata=True,
path_mode='AUTO',
use_mesh_edges=True,
use_tspace=True,
embed_textures=False,
use_custom_props=False,
bake_space_transform=False,
**kwargs
):
# Clear cached ObjectWrappers (just in case...).
ObjectWrapper.cache_clear()
if object_types is None:
object_types = {'EMPTY', 'CAMERA', 'LAMP', 'ARMATURE', 'MESH', 'OTHER'}
if 'OTHER' in object_types:
object_types |= BLENDER_OTHER_OBJECT_TYPES
global_scale = global_matrix.median_scale
global_matrix_inv = global_matrix.inverted()
# For transforming mesh normals.
global_matrix_inv_transposed = global_matrix_inv.transposed()
# Only embed textures in COPY mode!
if embed_textures and path_mode != 'COPY':
embed_textures = False
media_settings = FBXExportSettingsMedia(
path_mode,
os.path.dirname(bpy.data.filepath), # base_src
os.path.dirname(filepath), # base_dst
# Local dir where to put images (medias), using FBX conventions.
os.path.splitext(os.path.basename(filepath))[0] + ".fbm", # subdir
embed_textures,
set(), # copy_set
)
settings = FBXExportSettings(
operator.report, (axis_up, axis_forward), global_matrix, global_scale,
bake_space_transform, global_matrix_inv, global_matrix_inv_transposed,
context_objects, object_types, use_mesh_modifiers,
mesh_smooth_type, use_mesh_edges, use_tspace, use_armature_deform_only,
bake_anim, bake_anim_use_nla_strips, bake_anim_use_all_actions, bake_anim_step, bake_anim_simplify_factor,
False, media_settings, use_custom_props,
)
import bpy_extras.io_utils
print('\nFBX export starting... %r' % filepath)
start_time = time.process_time()
# Generate some data about exported scene...
scene_data = fbx_data_from_scene(scene, settings)
root = elem_empty(None, b"") # Root element has no id, as it is not saved per se!
# Mostly FBXHeaderExtension and GlobalSettings.
fbx_header_elements(root, scene_data)
# Documents and References are pretty much void currently.
fbx_documents_elements(root, scene_data)
fbx_references_elements(root, scene_data)
# Templates definitions.
fbx_definitions_elements(root, scene_data)
# Actual data.
fbx_objects_elements(root, scene_data)
# How data are inter-connected.
fbx_connections_elements(root, scene_data)
# Animation.
fbx_takes_elements(root, scene_data)
# Cleanup!
fbx_scene_data_cleanup(scene_data)
# And we are down, we can write the whole thing!
encode_bin.write(filepath, root, FBX_VERSION)
# Clear cached ObjectWrappers!
ObjectWrapper.cache_clear()
# copy all collected files, if we did not embed them.
if not media_settings.embed_textures:
bpy_extras.io_utils.path_reference_copy(media_settings.copy_set)
print('export finished in %.4f sec.' % (time.process_time() - start_time))
return {'FINISHED'}
# defaults for applications, currently only unity but could add others.
def defaults_unity3d():
return {
# These options seem to produce the same result as the old Ascii exporter in Unity3D:
"version": 'BIN7400',
"axis_up": 'Y',
"axis_forward": '-Z',
"global_matrix": Matrix.Rotation(-math.pi / 2.0, 4, 'X'),
# Should really be True, but it can cause problems if a model is already in a scene or prefab
# with the old transforms.
"bake_space_transform": False,
"use_selection": False,
"object_types": {'ARMATURE', 'EMPTY', 'MESH', 'OTHER'},
"use_mesh_modifiers": True,
"use_mesh_edges": False,
"mesh_smooth_type": 'FACE',
"use_tspace": False, # XXX Why? Unity is expected to support tspace import...
"use_armature_deform_only": True,
"use_custom_props": True,
"bake_anim": True,
"bake_anim_simplify_factor": 1.0,
"bake_anim_step": 1.0,
"bake_anim_use_nla_strips": True,
"bake_anim_use_all_actions": True,
"path_mode": 'AUTO',
"embed_textures": False,
"batch_mode": 'OFF',
}
def save(operator, context,
filepath="",
use_selection=False,
batch_mode='OFF',
use_batch_own_dir=False,
**kwargs
):
"""
This is a wrapper around save_single, which handles multi-scenes (or groups) cases, when batch-exporting a whole
.blend file.
"""
ret = None
org_mode = None
if context.active_object and context.active_object.mode != 'OBJECT' and bpy.ops.object.mode_set.poll():
org_mode = context.active_object.mode
bpy.ops.object.mode_set(mode='OBJECT')
if batch_mode == 'OFF':
kwargs_mod = kwargs.copy()
if use_selection:
kwargs_mod["context_objects"] = context.selected_objects
else:
kwargs_mod["context_objects"] = context.scene.objects
ret = save_single(operator, context.scene, filepath, **kwargs_mod)
else:
fbxpath = filepath
prefix = os.path.basename(fbxpath)
if prefix:
fbxpath = os.path.dirname(fbxpath)
if batch_mode == 'GROUP':
data_seq = bpy.data.groups
else:
data_seq = bpy.data.scenes
# call this function within a loop with BATCH_ENABLE == False
# no scene switching done at the moment.
# orig_sce = context.scene
new_fbxpath = fbxpath # own dir option modifies, we need to keep an original
for data in data_seq: # scene or group
newname = "_".join((prefix, bpy.path.clean_name(data.name)))
if use_batch_own_dir:
new_fbxpath = os.path.join(fbxpath, newname)
# path may already exist
# TODO - might exist but be a file. unlikely but should probably account for it.
if not os.path.exists(new_fbxpath):
os.makedirs(new_fbxpath)
filepath = os.path.join(new_fbxpath, newname + '.fbx')
print('\nBatch exporting %s as...\n\t%r' % (data, filepath))
if batch_mode == 'GROUP': # group
# group, so objects update properly, add a dummy scene.
scene = bpy.data.scenes.new(name="FBX_Temp")
scene.layers = [True] * 20
# bpy.data.scenes.active = scene # XXX, cant switch
for ob_base in data.objects:
scene.objects.link(ob_base)
scene.update()
# TODO - BUMMER! Armatures not in the group wont animate the mesh
else:
scene = data
kwargs_batch = kwargs.copy()
kwargs_batch["context_objects"] = data.objects
save_single(operator, scene, filepath, **kwargs_batch)
if batch_mode == 'GROUP':
# remove temp group scene
bpy.data.scenes.remove(scene)
# no active scene changing!
# bpy.data.scenes.active = orig_sce
ret = {'FINISHED'} # so the script wont run after we have batch exported.
if context.active_object and org_mode and bpy.ops.object.mode_set.poll():
bpy.ops.object.mode_set(mode=org_mode)
return ret