Gaffer 0.45.0.0

Features

• Added Ramp image node (#2470).
• Added SplinefColor4fPlug type (#2470).
• Added system to backup all open scripts at frequent intervals.
  This is controlled via the Preferences dialogue (#2469, #2499, #2503).

Improvements

• Viewer :
  • Improved performance significantly when selecting large numbers of
    objects (#2450, #2486).
  • Improved reporting of errors involving look-through cameras (#2490).
  • Improved camera selection UI (#2490).
  • Added default camera settings dialogue (#2490).
  • Added Ctrl+K shortcut to fit clipping planes to selection (#2490).
  • Added Ctrl+F shortcut to frame selection and fit clipping planes to
    match (#2490).
  • Added context menu (#2490).
• SceneHierarchy (#2450, #2486) :
  • Improved performance significantly when selecting or expanding large numbers
    of objects.
  • Multiple selections made in the Viewer are now highlighted properly in the
    SceneHierarchy (#76).
• Significantly reduced file sizes and load times for scripts
  containing many shader and/or light nodes (#2455).
• NodeGraph
  • Added ability to Shift+Drag a connection to duplicate it (#2480).
  • Improved representation of Expression, Animation and Random nodes (#2458, #2497).
  • Improved highlighting behaviour for connections to selected nodes (#2473).
• ScriptNode :
  • The current frame is now saved with the script and restored on
    loading (#2468).
  • Read-only files are now read-only in the UI (#2503).
• ArnoldAttributes : Added attributes to control volume motion blur (#2433).
• Arnold : Added support for OSL shaders with multiple outputs (#2494).
• Stats/Execute apps : By default the current frame stored in the script is
  executed, rather than frame 1 as before. Use the -frames commandline argument
  to specify a specific range of frames to execute (#2468).
• CompoundDataPlugValueWidget : Added array types to plug creation menu (#2433).
• Startup : Startup files are now executed in isolated scopes, so they cannot
  accidentally rely on other startup files (#2462).
• Expression : Python expressions can now read from CompoundDataPlugs (#2484).

Fixes

• Appleseed : Fixed crashes when editing cameras during interactive renders (#2489).
• Browser : Fixed bug caused by missing import (#2449).
• OpenColorIO : Added workaround for OpenColorIO bug whereby config parsing would
  fail for non-English locales (#1654, #2460).
• Python wrappers : Fixed exception translation (#2459).
• BoxIn : Plug values are now preserved when promoting an input plug (#2461).
• Tractor Dispatcher : Fixed accumulation of tractor plugs on TaskNodes (#2463).
• GraphComponent : Fixed bug which could prevent multiple scripts from being
  loaded in parallel (#2464).
• GraphComponentPath : Fixed bug whereby children did not inherit the filter
  from their parent (#2465).
• OSLLight : Fixed metadata for child plugs of parameters (#2474).
• Shader : Fixed serialisation bugs introduced in version 0.43 (#2454, #2455).
• Spline UI : Prevented creation of multiple editing dialogues for the same
  plug (#2472).
• Added backwards compatibility for scripts referencing the old
  GafferScene.PathMatcher, GafferScene.PathMatcherData and
  GafferScene.PathMatcherDataPlug types (#2457).
• Layouts :
  • Fixed incorrect vertical sizing of Timelines in custom
    layouts (#2502).
  • Fixed bug serialising custom layouts containing special characters (#2492).
• ScriptNode :
  • Hid "frame" plug from the UI, and clarified in the documentation
    that is not intended for widespread use (#2504).
  • Fixed a bug loading old scripts which referenced IECore::Data types
    wrapping imath types (#2487).
• Viewer (#2490) : Fixed bug where centre of interest was lost when switching between
  the default and look-through cameras.
• PlugValueWidget : Fixed bug that allowed drags to be received for read-only
  plugs (#2503).
• GUI App : Errors are now reported correctly when loading files from the command
  line (#2499).
• Serialiser : Fixed handling of exceptions in Python serialisers (#2475).
• Expression : Fixed initial UI state so that the expression is not editable until
  a language has been chosen. This avoids problems where an expression was entered
  and then lost when the language was set (#2482).
• PlugAlgo : Fixed problems with metadata promotion when using non-Box parents (#2488).
• NodeAlgo : Fixed attempts to apply user defaults to plugs that are not settable (#2507).

API

• PathListingWidget : Added faster expansion and selection methods using
  IECore.PathMatcher() to store sets of paths (#2450).
• AuxiliaryNodeGadget : Added new class to represent nodes like Expression and
  Animation in the NodeGraph (#2458).
• Style : Added state argument to renderAuxiliaryConnection() (#2473).
• Added GafferUI.Backups class (#2469).
• ImageGadget : Added loadTexture() method (#2490).
• ViewportGadget : Added fitClippingPlanes() method (#2490).
• Viewer : Added viewContextMenuSignal(). This allows context menus for views to be
  customised using the same basic mechanism we use in the NodeGraph and elsewhere.
  (#2490).
• FileMenu : Added addScript() function (#2499).
• Serialisation : Improved support for Python serialisers (#2475).
• ConnectionCreator : Added new class to improve drag & drop functionality in
  the NodeGraph (#2480).
• ContextAlgo : Added affects*Paths() methods (#2486).

Breaking Changes

• Stats app : Replaced -frame parameter with -frames (#2468).
• Style : Changed signature for renderAuxiliaryConnection() method (#2473).
• View : Removed framingBound() method (#2490).
• RendererAlgo : Renamed createDisplayDirectories() to createOutputDirectories()
  (#2452).
• PlugAdder (#2480) :
  • Removed edge constructor argument.
  • Changed base class.
• Nodule : Changed base class (#2480).
• ConnectionGadget : Changed base class (#2480).
• NodeGadget : Renamed noduleTangent() to connectionTangent() (#2480).
• ContextAlgo : The scene selection is now stored as a PathMatcher and not
  StringVectorData (#2486).
• SceneGadget : Changed signatures for methods for accessing selection and
  expansion (#2486).
• Style : Added new renderAuxiliaryConnection() virtual method (#2497).