Miscellaneous Changes

• Hydra Viewer improvements:
  
  • The PxrEnvDayLight sunDirection parameter now has a manipulator
  • The Refine Shape and Scale Edges manipulators for PxrRodLightFilter are now available
  • Viewer Manipulators now display annotations
  • Prevented the default Katana light locator from drawing when a light filter is added to a light
  • The PxrPortalLight and PxrDistantLight guides are now distinct from the PxrRectLight and PxrDiskLight representations
  • It is now easier to select lights
  • We now hide the analytic cookie manipulators if the cookieMode is "physical"
  • The width and height controls on the Barn Size manipulator now match line up with the BarnLightFilter visualization
  • The Rod Scale, Cookie Scale, and Barn Scale manipulator handles will now remain orthogonal no matter how the light filter is transformed
• The RenderMan built-in error handlers are now fully supported (prmanGlobalStatements.errorHandler). This has been extended to include a new handler 'abortall' which indicates the render should be terminated on a katana error
• All provided shaders with a ramp UI now allow a dynamic number of knots
• RfK no longer outputs uninitialized values to PxrRamp's colorRamp parameters
• Deleting primvars and primAttributes now updates in Live Render
• The OpenEXR display driver now writes pixel aspect ratio as it is read from the pixelAspectRatio input parameter. Previously it would derive the pixel aspect ratio from the display window and projection matrix
• We now pass the pixel aspect ratio from the resolution table to the renderer. Previously it was assuming a ratio of 1.0
• RfK no longer adds "origin" and "OriginalWindow" to the display lines. These values are properly computed by prman
• RfK's display option configuration has been adjusted to align with prman's expectations for crop window and overscan

Fixes

• Fixed live render crashes when deleting or renaming a light
• Fixed an error messaged that was displayed when "Tab" was pressed in the Hydra Viewer when a light with no manipulators was selected
• The Scale Edges manipulator for PxrRodLightFilter in the Viewer are now correctly positioned when the scaleWidth, scaleHeight, and scaleDepth parameters are non-default
• Fixed a bug where a parented, shared light filter using the "Light + Light Filter" Coordinate System was not drawn in the Viewer and Hydra Viewer
• Fix a bug that would cause "point" output channels to be emitted with type "int"
• The UI default value for the Visible In Refraction parameter on lights now matches the default in the renderer

• Addressed a bug with the preset browser where  exporting light rigs and materials from a parent group failed

• The preset browser now supports array and dynamic array parameters.  Materials that use PxrRamp can now be correctly saved and imported
• The autocrop option on RenderOutputDefine for raw OpenEXR renders now works