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gltfexport.py
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gltfexport.py
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import bpy
import os
from bpy.props import StringProperty, BoolProperty, EnumProperty
# Function to export collections
def export_collections(context):
export_path = context.scene.export_path
def checkAndExport(parentCollection):
for child in parentCollection.children:
if child.collection and not child.exclude:
collection = child.collection
if len(collection.objects) > 0:
exportMeshes(collection)
checkAndExport(child)
def exportMeshes(collection):
for obj in bpy.data.objects:
obj.select_set(False)
if export_path:
fullPath = os.path.join(export_path, f"{collection.name}.glb")
else:
fullPath = os.path.join(directoryPath, f"{collection.name}.glb")
visibilityState = []
for obj in collection.objects:
visibilityState.append(obj.hide_get())
obj.hide_set(False)
obj.select_set(True)
bpy.ops.export_scene.gltf(
filepath=fullPath,
export_format='GLB',
use_selection=True,
export_apply=context.scene.apply_modifiers,
export_cameras=False,
export_lights=False,
export_materials="NONE",
export_colors=False,
export_animations=False,
export_frame_range=False,
export_force_sampling=False,
export_nla_strips=False,
export_anim_single_armature=False,
export_reset_pose_bones=False,
export_skins=False,
export_morph=False,
export_morph_normal=False,
)
for obj in collection.objects:
obj.hide_set(visibilityState.pop(0))
if context.scene.export_all_linked:
export_linked_collections(context)
else:
checkAndExport(context.view_layer.layer_collection)
# Function to export linked collections
def export_linked_collections(context):
export_path = context.scene.export_path
linked_collections = [coll for coll in bpy.data.collections if coll.library]
for collection in linked_collections:
if len(collection.objects) > 0:
exportLinkedMeshes(collection, context)
def exportLinkedMeshes(collection, context):
# Create a new temporary collection in the current scene
temp_collection = bpy.data.collections.new(name=f"Temp_{collection.name}")
context.scene.collection.children.link(temp_collection)
# Copy objects from the linked collection to the temporary collection
for obj in collection.objects:
temp_obj = obj.copy()
temp_obj.data = obj.data.copy()
context.scene.collection.objects.link(temp_obj)
temp_collection.objects.link(temp_obj)
# Deselect all objects
bpy.ops.object.select_all(action='DESELECT')
# Select only the objects in the temporary collection
for obj in temp_collection.objects:
obj.select_set(True)
# Generate the export path
if context.scene.export_path:
fullPath = os.path.join(context.scene.export_path, f"{collection.name}.glb")
else:
fullPath = os.path.join(directoryPath, f"{collection.name}.glb")
# Export the temporary collection
bpy.ops.export_scene.gltf(
filepath=fullPath,
export_format='GLB',
use_selection=True,
export_apply=context.scene.apply_modifiers,
export_cameras=False,
export_lights=False,
export_materials="NONE",
export_colors=False,
export_animations=False,
export_frame_range=False,
export_force_sampling=False,
export_nla_strips=False,
export_anim_single_armature=False,
export_reset_pose_bones=False,
export_skins=False,
export_morph=False,
export_morph_normal=False,
)
# Remove the temporary collection and its objects
bpy.ops.object.select_all(action='DESELECT')
for obj in temp_collection.objects:
bpy.data.objects.remove(obj, do_unlink=True)
bpy.data.collections.remove(temp_collection)
# Export panel
class ExportPanel(bpy.types.Panel):
bl_label = "Export Addon"
bl_idname = "OBJECT_PT_export_panel"
bl_space_type = 'VIEW_3D'
bl_region_type = 'UI'
bl_category = 'Export GLTF'
def draw(self, context):
layout = self.layout
layout.prop(context.scene, "export_path", text="", icon='FILE_FOLDER')
layout.prop(context.scene, "export_panel_mode", text="Mode")
mode = context.scene.export_panel_mode
if mode == "OBJECTS":
box = layout.box()
box.prop(context.scene, "export_name")
box.prop(context.scene, "apply_modifiers", text="Apply Modifiers")
box.prop(context.scene, "export_selected_only", text="Selected Only")
box.prop(context.scene, "export_individual", text="Export Individually")
box.prop(context.scene, "make_instances_real", text="Make Instances Real")
box.prop(context.scene, "delete_after_export", text="Delete After Export")
box.operator("object.export_selected_objects", text="Export")
elif mode == "COLLECTIONS":
box = layout.box()
box.prop(context.scene, "apply_modifiers", text="Apply Modifiers")
box.prop(context.scene, "export_all_linked", text="All Linked")
box.operator("object.export_collections", text="Export")
# Operator to export selected objects
class ExportSelectedObjectsOperator(bpy.types.Operator):
bl_idname = "object.export_selected_objects"
bl_label = "Export"
def execute(self, context):
export_path = bpy.context.scene.export_path
export_name = bpy.context.scene.export_name
if bpy.context.scene.export_selected_only:
selected_objects = bpy.context.selected_objects
else:
selected_objects = bpy.context.scene.objects
bpy.ops.object.select_all(action='DESELECT')
if bpy.context.scene.make_instances_real:
bpy.ops.object.duplicates_make_real()
if bpy.context.scene.export_individual:
for obj in selected_objects:
obj.select_set(True)
if export_path:
fullPath = os.path.join(export_path, f"{obj.name}.glb")
else:
fullPath = os.path.join(directoryPath, f"{obj.name}.glb")
bpy.ops.export_scene.gltf(
filepath=fullPath,
export_format='GLB',
use_selection=True,
export_apply=context.scene.apply_modifiers,
export_materials='EXPORT',
export_cameras=False,
export_lights=False,
)
obj.select_set(False)
if bpy.context.scene.delete_after_export:
bpy.ops.object.select_all(action='DESELECT')
for obj in selected_objects:
obj.select_set(True)
bpy.ops.object.delete()
else:
for obj in selected_objects:
obj.select_set(True)
if export_path:
fullPath = os.path.join(export_path, f"{export_name}.glb")
else:
fullPath = os.path.join(directoryPath, f"{export_name}.glb")
bpy.ops.export_scene.gltf(
filepath=fullPath,
export_format='GLB',
use_selection=True,
export_apply=context.scene.apply_modifiers,
export_materials='EXPORT',
export_cameras=False,
export_lights=False,
)
if bpy.context.scene.delete_after_export:
bpy.ops.object.select_all(action='DESELECT')
for obj in selected_objects:
obj.select_set(True)
bpy.ops.object.delete()
bpy.ops.object.select_all(action='DESELECT')
return {'FINISHED'}
# Operator to export collections
class ExportCollectionsOperator(bpy.types.Operator):
bl_idname = "object.export_collections"
bl_label = "Export"
def execute(self, context):
export_collections(context)
return {'FINISHED'}
# Operator to select export path
class SelectExportPathOperator(bpy.types.Operator):
bl_idname = "object.select_export_path"
bl_label = "Select Export Path"
def execute(self, context):
bpy.ops.wm.path_open(filepath=context.scene.export_path)
return {'FINISHED'}
def invoke(self, context, event):
context.window_manager.fileselect_add(self)
return {'RUNNING_MODAL'}
# Register classes and properties
def register():
bpy.utils.register_class(ExportPanel)
bpy.utils.register_class(ExportSelectedObjectsOperator)
bpy.utils.register_class(ExportCollectionsOperator)
bpy.utils.register_class(SelectExportPathOperator)
bpy.types.Scene.export_path = StringProperty(
name="Export Path",
default="/select/path",
subtype='DIR_PATH'
)
bpy.types.Scene.export_name = StringProperty(name="Name", default="")
bpy.types.Scene.apply_modifiers = BoolProperty(name="Apply Modifiers", default=False)
bpy.types.Scene.make_instances_real = BoolProperty(name="Make Instances Real", default=False)
bpy.types.Scene.export_selected_only = BoolProperty(name="Selected Only", default=False)
bpy.types.Scene.export_individual = BoolProperty(name="Export Individually", default=False)
bpy.types.Scene.delete_after_export = BoolProperty(name="Delete After Export", default=False)
bpy.types.Scene.export_panel_mode = EnumProperty(
name="Mode",
items=[
("OBJECTS", "Objects", ""),
("COLLECTIONS", "Collections", ""),
],
default="OBJECTS"
)
bpy.types.Scene.export_all_linked = BoolProperty(name="All Linked", default=False)
bpy.types.Scene.show_object_panel = BoolProperty(name="Show Object Panel", default=True)
# Unregister classes and properties
def unregister():
bpy.utils.unregister_class(ExportPanel)
bpy.utils.unregister_class(ExportSelectedObjectsOperator)
bpy.utils.unregister_class(ExportCollectionsOperator)
bpy.utils.unregister_class(SelectExportPathOperator)
del bpy.types.Scene.export_path
del bpy.types.Scene.export_name
del bpy.types.Scene.apply_modifiers
del bpy.types.Scene.make_instances_real
del bpy.types.Scene.export_selected_only
del bpy.types.Scene.export_individual
del bpy.types.Scene.delete_after_export
del bpy.types.Scene.export_panel_mode
del bpy.types.Scene.export_all_linked
del bpy.types.Scene.show_object_panel
if __name__ == "__main__":
register()