unreal.USDPregenBlueprintLibrary

class unreal.USDPregenBlueprintLibrary(outer: Object | None = None, name: Name | str = 'None')

Bases: BlueprintFunctionLibrary

USDPregen Blueprint Library

C++ Source:

  • Plugin: USDPregen

  • Module: USDPregenInterchange

  • File: USDPregenBlueprintLibrary.h

classmethod import_file(import_options, on_import_done) → None

Kicks off an asynchronous USD pregen import described by ImportOptions. If bound, OnImportDone fires on the game thread once manifests have been stored, optionally persisted, and (when ImportOptions.bAutoSavePackages is true) imported asset packages have been saved to disk.

This wraps FUSDPregenInterchangeModule::ImportFile for Python and blueprint usage. OnImportDone is optional.

=== Python usage ===

import unreal

import_options = unreal.PregenImportOptions() import_options.source_file_path = ‘/abs/path/to/scene.usda’

# Plugin choice and discovery/storage options all live on the # nested option structs. Leave any field empty for the default. import_options.discovery_options.discovery_plugin_name = ‘my_studio_discovery’ import_options.discovery_options.definition_prefix = ‘Shot_42_’ import_options.discovery_options.initial_path = ‘/Root/Hero’ import_options.storage_options.storage_plugin_name = ‘json_storage’ import_options.storage_options.package_sub_path_template = ‘assets/${DEFINITION_NAME}/${PERMUTATION_ID}’

# Without callback (fire-and-forget): unreal.USDPregenBlueprintLibrary.import_file(import_options, unreal.USDPregenOnImportDoneDynamic())

# With callback: def on_done(completed_options, success, saved_paths):

print(‘Done!’)

delegate = unreal.USDPregenOnImportDoneDynamic() delegate.bind_callable(on_done) unreal.USDPregenBlueprintLibrary.import_file(import_options, delegate)

Parameters: