Futatabi (after the Japanese word *futatabi*, 再び, meaning “again” or
“for the second time”) is a system for instant replay. Even though Futatabi
is meant to be used with Nageru, shares some code with it and is built from
-the same source distribution (with matching version numbers), it is a separate
+the same source distribution, it is a separate
application. Futatabi is meant for slow motion for e.g. sports broadcasts, but
can also be used as a more generic multitrack recorder for later editing.
`Fast Optical Flow using Dense Inverse Search (DIS) <https://github.com/tikroeger/OF_DIS>`_
by Kroeger et al, although this may change in the future.
+Since Futatabi is part of the Nageru source distribution, its version number
+mirrors Nageru. Thus, the first version of Futatabi is version 1.8.0,
+which is the Nageru version when it was first introduced.
+
System requirements
-------------------
quality, or just wish to test, you can use a faster preset, or turn off
interpolation entirely. Futatabi requires OpenGL 4.5 or newer.
-For other required libraries, see :doc:`compile`; when you build Nageru,
-you also compile Futatabi.
+For other required libraries, see :ref:`compile`; when you build Nageru,
+you also build Futatabi.
Getting started