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Warning! This version of documentation is OUTDATED, as it describes an older SDK version! Please switch to the documentation for the latest SDK version.
Warning! This version of documentation describes an old SDK version which is no longer supported! Please upgrade to the latest SDK version.


Archiver is a tool for data archiving, which handles UNG files. It implements encrypting to avoid unauthorized data access.
UNG files are transparent to the engine, and their content is handled as not packed. For more details about file packing, see File System.

The maximum size for a file inside a UNG archive is limited to 2 GB.

To invoke Archiver, run <UnigineSDK>/bin/ung_x64.exe (in Windows) or <UnigineSDK>/bin/ung_x64 (in Linux) from a command-line console.

Command Line Options#

Archiver recognizes the following command-line options:

  • -p PASSWORD — set a password. It should be the same password as passed on engine initialization on the C++ side.
    You can skip password setting if it is not required. The engine supports loading UNG packages without password protection even if the password was specified on its initialization.
  • -x FILE — exclude the specified files from packaging into the archive.
  • -o NAME — name the output archive.
  • -e NAME — extract files from the archive.
  • -i NAME — print archive statistics.
  • -c COMPRESSION_TYPE — set compression type. The following compression types are available:
    • none - no compression.
    • speed - fast performance (LZ4).
    • size - best compression (ZLIB). This option is used by default.
For maximum runtime performance your archives should be packed without compression and without password protection!

Usage Examples#

The following creates an archive named files.ung that contains files file.txt and file.tga using LZ4 compression:

Shell commands
ung_x64 -c speed -o files.ung file.txt file.tga

The following extracts all files from the archive created above:

Shell commands
ung_x64 -e files.ung

The following prints statistics related to the archive:

Shell commands
ung_x64 -i files.ung

The following creates an archive named files.ung that contains files file.txt and file.tga protected with a password "12345":

Shell commands
ung_x64 -p 12345 -o files.ung file.txt file.tga
Last update: 2020-11-11
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