GafferHQ / gaffer

Highlights of this release include an entirely rewritten Appleseed backend with support
for editing geometry and environment lights during interactive renders, an OSLCode node
for the writing of OSL shaders within Gaffer, and much improved OSL support in GafferArnold.

Apps

• Screengrab
  • Added delay command line argument (#1861).

Core

• StringPlug
  • Fixed substitutions when plug has an input (#1860).

Appleseed

• InteractiveAppleseedRender (#1833)
  • Reimplemented completely to using new Gaffer scene description
    APIs.
  • Added support for adding/removing/deforming/transforming objects during rendering.
  • Added support for changing environment lights during rendering.
  • Improved performance and responsiveness.
• AppleseedRender (#1833)
  • Reimplemented completely to using new Gaffer scene description APIs.
• AppleseedShaderBall
  • Added threads and max samples settings (#1833).
  • Increased sphere tesselation #1869.

Arnold

• InteractiveArnoldRender
  • Added support for editing subdivision attributes while rendering (#1855).
• ArnoldOptions
  • Added log verbosity settings (#1866).
• OSL
  • Improved OSL shader support using Arnold's new osl_shader node (#1873).
• Improved warning messages for unsupported parameters (#1872).

OSL

• Added OSLCode node, to allow editing of OSL shader snippets on the fly (#1861).

UI

• ArnoldShader
  • Added support for specifying UI layout via Arnold metadata.
    In particular, this greatly improves the NodeEditor UI for the
    AlShaders (#757, #1864).
• ArnoldAttributes
  • Fixed formatting of Subdivision section summary (#1855).
• NodeMenu
  • Sorted Arnold shaders into submenus (#1870).
• ScriptEditor/Expression/PythonCommand
  • Made code font monospaced (#1861).
• ShaderView
  • Fixed initial framing (#1861).
  • Fixed bug triggered by shaders changing type (#1861).
• Expression
  • Fixed broken popup menus on non-ValuePlugs (#1861).
• OSLShader
  • Fixed support for "null" widget type (#1865).
• ImageReader/SceneReader/AlembicSource
  • Improved layout of reload button (#1867).
• ArnoldOptions
  • Moved threads setting to Rendering section.
• Added indentation to nested collapsible widgets (#1866).
• SceneInspector
  • Fixed errors when selected path doesn't exist (#1874).
• Display
  • Don't attempt to start server unless UI is connected (#222).
• Added home shortcut for image view.
• Selection/Crop Tools
  • Fixed precision issues when far from origin.

Documentation

• Consolidated reference docs into a parent section (#1860).
• Added string substitutions reference (#1860).

API

• Renderer
  • Added bool return value to ObjectInterface::attributes(), to signify
    success/failure #1855.
• OSLShader
  • Added support for unloading with OSLShader::loadShader( "" ) (#1859).
  • Fixed loading of surface type after loading of shader type (#1859).
• LabelPlugValueWidget
  • Added support for "labelPlugValueWidget:renameable" metadata (#1861).
• MultiLineTextWidget
  • Added "role" property (#1861).
• MultiLineStringPlugValueWidget
  • Added support for specifying role via "multiLineStringPlugValueWidget:role"
    metadata (#1861).
• OSL
  • Added GafferOSL/Spline.h header, to simplify use of splines in shaders (#1861).
• View
  • Removed virtual void plugDirtied().
• CompoundDataPlug
  • Added support for BoolVectorData (#1863).
• PlugLayout
  • Added support for "layout:accessory" metadata.
• Added RefreshPlugValueWidget and deprecated IncrementingPlugValueWidget (#1867).
• ViewportGadget
  • Don't convert raster positions to V2i.

Build

• Added OSLHOME build option, only necessary when building without using GafferHQ/dependencies (#1871).