I have an addon that works for 2.79 for batch exporting of .obj files, but now i'm looking to use 2.80, so trying to update the addon but no success. I've tried following a guide on YouTube with the API changes, but it's just not working. The original is below, and the changes i've made after.
import bpy
import os
from bpy_extras.io_utils import ExportHelper
from bpy.props import (BoolProperty,
FloatProperty,
StringProperty,
EnumProperty,
CollectionProperty
)
def highlightObjects(selection_list):
for i in selection_list:
bpy.data.objects[i.name].select = True
class ExportMultipleObjs(bpy.types.Operator, ExportHelper):
"""This appears in the tooltip of the operator and in the generated docs"""
bl_idname = "export_scene.multiple_objs"
bl_label = "Export multiple OBJ's"
bl_options = {'PRESET', 'UNDO'}
# ExportHelper mixin class uses this
filename_ext = ".obj"
filter_glob = StringProperty(
default="*.obj;*.mtl",
options={'HIDDEN'},
)
# List of operator properties, the attributes will be assigned
# to the class instance from the operator setting before calling.
# context group
use_selection_setting = BoolProperty(
name="Selection Only",
description="Export selected objects only",
default=True,
)
use_animation_setting = BoolProperty(
name="Animation",
description="Write out an OBJ for each frame",
default=False,
)
# object group
use_mesh_modifiers_setting = BoolProperty(
name="Apply Modifiers",
description="Apply modifiers (preview resolution)",
default=False,
)
# extra data group
use_edges_setting = BoolProperty(
name="Include Edges",
description="",
default=False,
)
use_smooth_groups_setting = BoolProperty(
name="Smooth Groups",
description="Write sharp edges as smooth groups",
default=True,
)
use_smooth_groups_bitflags_setting = BoolProperty(
name="Bitflag Smooth Groups",
description="Same as 'Smooth Groups', but generate smooth groups IDs as bitflags "
"(produces at most 32 different smooth groups, usually much less)",
default=False,
)
use_normals_setting = BoolProperty(
name="Write Normals",
description="Export one normal per vertex and per face, to represent flat faces and sharp edges",
default=False,
)
use_uvs_setting = BoolProperty(
name="Include UVs",
description="Write out the active UV coordinates",
default=False,
)
use_materials_setting = BoolProperty(
name="Write Materials",
description="Write out the MTL file",
default=False,
)
use_triangles_setting = BoolProperty(
name="Triangulate Faces",
description="Convert all faces to triangles",
default=False,
)
use_nurbs_setting = BoolProperty(
name="Write Nurbs",
description="Write nurbs curves as OBJ nurbs rather than "
"converting to geometry",
default=False,
)
use_vertex_groups_setting = BoolProperty(
name="Polygroups",
description="",
default=False,
)
# grouping group
use_blen_objects_setting = BoolProperty(
name="Objects as OBJ Objects",
description="",
default=True,
)
group_by_object_setting = BoolProperty(
name="Objects as OBJ Groups ",
description="",
default=False,
)
group_by_material_setting = BoolProperty(
name="Material Groups",
description="",
default=False,
)
keep_vertex_order_setting = BoolProperty(
name="Keep Vertex Order",
description="",
default=True,
)
axis_forward_setting = EnumProperty(
name="Forward",
items=(('X', "X Forward", ""),
('Y', "Y Forward", ""),
('Z', "Z Forward", ""),
('-X', "-X Forward", ""),
('-Y', "-Y Forward", ""),
('-Z', "-Z Forward", ""),
),
default='-Z',
)
axis_up_setting = EnumProperty(
name="Up",
items=(('X', "X Up", ""),
('Y', "Y Up", ""),
('Z', "Z Up", ""),
('-X', "-X Up", ""),
('-Y', "-Y Up", ""),
('-Z', "-Z Up", ""),
),
default='Y',
)
global_scale_setting = FloatProperty(
name="Scale",
min=0.01, max=1000.0,
default=1.0,
)
def execute(self, context):
# get the folder
folder_path = (os.path.dirname(self.filepath))
# get objects selected in the viewport
viewport_selection = bpy.context.selected_objects
# get export objects
obj_export_list = viewport_selection
if self.use_selection_setting == False:
obj_export_list = [i for i in bpy.context.scene.objects]
# deselect all objects
bpy.ops.object.select_all(action='DESELECT')
for item in obj_export_list:
item.select = True
if item.type == 'MESH':
file_path = os.path.join(folder_path, "{}.obj".format(item.name))
bpy.ops.export_scene.obj(filepath=file_path, use_selection=True,
axis_forward=self.axis_forward_setting,
axis_up=self.axis_up_setting,
use_animation=self.use_animation_setting,
use_mesh_modifiers=self.use_mesh_modifiers_setting,
use_edges=self.use_edges_setting,
use_smooth_groups=self.use_smooth_groups_setting,
use_smooth_groups_bitflags=self.use_smooth_groups_bitflags_setting,
use_normals=self.use_normals_setting,
use_uvs=self.use_uvs_setting,
use_materials=self.use_materials_setting,
use_triangles=self.use_triangles_setting,
use_nurbs=self.use_nurbs_setting,
use_vertex_groups=self.use_vertex_groups_setting,
use_blen_objects=self.use_blen_objects_setting,
group_by_object=self.group_by_object_setting,
group_by_material=self.group_by_material_setting,
keep_vertex_order=self.keep_vertex_order_setting,
global_scale=self.global_scale_setting)
item.select = False
# restore viewport selection
highlightObjects(viewport_selection)
return {'FINISHED'}
def register():
bpy.utils.register_class(ExportMultipleObjs)
def unregister():
bpy.utils.unregister_class(ExportMultipleObjs)
if __name__ == "__main__":
register()
# test call
#bpy.ops.export_scene.multiple_objs('INVOKE_DEFAULT')
And here's what i've got so far. It's not giving any errors when running it, it's just not doing anyhting.
import bpy
import os
from bpy_extras.io_utils import ExportHelper
from bpy.props import (BoolProperty,
FloatProperty,
StringProperty,
EnumProperty,
CollectionProperty
)
def highlightObjects(selection_list):
for i in selection_list:
bpy.data.objects[i.name].select = True
class Export_OT_MultipleObjs(bpy.types.Operator, ExportHelper):
"""This appears in the tooltip of the operator and in the generated docs"""
bl_idname = "export_scene.multiple_objs"
bl_label = "Export multiple OBJ's"
bl_options = {'PRESET', 'UNDO'}
# ExportHelper mixin class uses this
filename_ext = ".obj"
filter_glob : StringProperty(
default="*.obj;*.mtl",
options={'HIDDEN'},
)
# List of operator properties, the attributes will be assigned
# to the class instance from the operator setting before calling.
# context group
use_selection_setting : BoolProperty(
name="Selection Only",
description="Export selected objects only",
default=True,
)
use_animation_setting : BoolProperty(
name="Animation",
description="Write out an OBJ for each frame",
default=False,
)
# object group
use_mesh_modifiers_setting : BoolProperty(
name="Apply Modifiers",
description="Apply modifiers (preview resolution)",
default=False,
)
# extra data group
use_edges_setting : BoolProperty(
name="Include Edges",
description="",
default=False,
)
use_smooth_groups_setting : BoolProperty(
name="Smooth Groups",
description="Write sharp edges as smooth groups",
default=True,
)
use_smooth_groups_bitflags_setting : BoolProperty(
name="Bitflag Smooth Groups",
description="Same as 'Smooth Groups', but generate smooth groups IDs as bitflags "
"(produces at most 32 different smooth groups, usually much less)",
default=False,
)
use_normals_setting : BoolProperty(
name="Write Normals",
description="Export one normal per vertex and per face, to represent flat faces and sharp edges",
default=False,
)
use_uvs_setting : BoolProperty(
name="Include UVs",
description="Write out the active UV coordinates",
default=False,
)
use_materials_setting : BoolProperty(
name="Write Materials",
description="Write out the MTL file",
default=False,
)
use_triangles_setting : BoolProperty(
name="Triangulate Faces",
description="Convert all faces to triangles",
default=False,
)
use_nurbs_setting : BoolProperty(
name="Write Nurbs",
description="Write nurbs curves as OBJ nurbs rather than "
"converting to geometry",
default=False,
)
use_vertex_groups_setting : BoolProperty(
name="Polygroups",
description="",
default=False,
)
# grouping group
use_blen_objects_setting : BoolProperty(
name="Objects as OBJ Objects",
description="",
default=True,
)
group_by_object_setting : BoolProperty(
name="Objects as OBJ Groups ",
description="",
default=False,
)
group_by_material_setting : BoolProperty(
name="Material Groups",
description="",
default=False,
)
keep_vertex_order_setting : BoolProperty(
name="Keep Vertex Order",
description="",
default=True,
)
axis_forward_setting : EnumProperty(
name="Forward",
items=(('X', "X Forward", ""),
('Y', "Y Forward", ""),
('Z', "Z Forward", ""),
('-X', "-X Forward", ""),
('-Y', "-Y Forward", ""),
('-Z', "-Z Forward", ""),
),
default='-Z',
)
axis_up_setting : EnumProperty(
name="Up",
items=(('X', "X Up", ""),
('Y', "Y Up", ""),
('Z', "Z Up", ""),
('-X', "-X Up", ""),
('-Y', "-Y Up", ""),
('-Z', "-Z Up", ""),
),
default='Y',
)
global_scale_setting : FloatProperty(
name="Scale",
min=0.01, max=1000.0,
default=1.0,
)
def execute(self, context):
# get the folder
folder_path = (os.path.dirname(self.filepath))
# get objects selected in the viewport
viewport_selection = bpy.context.selected_objects
# get export objects
obj_export_list = viewport_selection
if self.use_selection_setting == False:
obj_export_list = [i for i in bpy.context.scene.objects]
# deselect all objects
bpy.ops.object.select_all(action='DESELECT')
for item in obj_export_list:
item.select = True
if item.type == 'MESH':
file_path = os.path.join(folder_path, "{}.obj".format(item.name))
bpy.ops.export_scene.obj(filepath=file_path, use_selection=True,
axis_forward=self.axis_forward_setting,
axis_up=self.axis_up_setting,
use_animation=self.use_animation_setting,
use_mesh_modifiers=self.use_mesh_modifiers_setting,
use_edges=self.use_edges_setting,
use_smooth_groups=self.use_smooth_groups_setting,
use_smooth_groups_bitflags=self.use_smooth_groups_bitflags_setting,
use_normals=self.use_normals_setting,
use_uvs=self.use_uvs_setting,
use_materials=self.use_materials_setting,
use_triangles=self.use_triangles_setting,
use_nurbs=self.use_nurbs_setting,
use_vertex_groups=self.use_vertex_groups_setting,
use_blen_objects=self.use_blen_objects_setting,
group_by_object=self.group_by_object_setting,
group_by_material=self.group_by_material_setting,
keep_vertex_order=self.keep_vertex_order_setting,
global_scale=self.global_scale_setting)
item.select = False
# restore viewport selection
highlightObjects(viewport_selection)
return {'FINISHED'}
classes = ( Export_OT_MultipleObjs )
register, unregister = bpy.utils.register_classes_factory(classes)
if __name__ == "__main__":
register()
# test call
#bpy.ops.export_scene.multiple_objs('INVOKE_DEFAULT')
What else needs to be changed? Thanks
