Gaffer 0.54.1.0

Features

• Orientation : Added new node for converting between different orientation representations
  (eulers, quaternions, matrices etc). This is particularly useful when preparing points for
  instancing (#3328).

Improvements

• ShaderAssignment : Added support for assigning OSL shaders with an alternative prefix. This
  can be useful when mixing OSL shader assignments with renderer-specific shader assignments
  (#3334).

Fixes

• HierarchyView : Fixed bug which could cause a hang when Shift+clicking to expand (#3335).
• ScriptNode (#3340) :
  • Fixed GIL management bug which could cause crashes when serialising a script.
  • Fixed bug that could cause string substitutions to be baked into serialisations.

API

• Improved support for iterating over nodes and plugs (#3341) :
  • Added FilteredChildRange and FilteredRecursiveChildRange classes. These can be used with
    C++11's range-for.
  • Added Iterator, RecursiveIterator, Range and RecursiveRange type aliases to all nodes and
    plugs.
  • Added InputIterator, OutputIterator, RecursiveInputIterator, RecursiveOutputIterator,
    InputRange, OutputRange, RecursiveInputRange and RecursiveOutputRange type aliases to all
    plugs.
  • Exposed Range classes to Python.

Documentation

• Fixed problems with screenshots for MacOS builds (#3321).
• Made miscellaneous improvements to the examples available from the Help menu (#3314).