12.0.157 - Upcoming

• 3Delight for Katana:
  • The region of interest may now be changed during a live render.
  • The frame outside the region of interest is now rendered as well in preview and live renders. It is simply rendered after the region of interest.

12.0.156 - 2017-05-17

• NSI: Up to 40% faster render of cubic curve geometry.
• NSI: added support for Hair ray types visibility (visibility.hair attribute on an attributes node).
• NSI: improved general performance of live scene edits
• 3Delight Display: fixed refresh problems of buckets' outlines.
• 3Delight for Katana:
  • Light edit UI now show upstream values.
  • Use proper data format when saving images to file (was always using half floats).
  • Added Maximum Ray Trace Distance parameters in DlSettings' Quality group.

12.0.155 - 2017-05-04

• NSI: optimisation brings a 2% to 7% speed boost, depending on scene complexity.
• 3Delight for Katana:
  • Better performance for OSL shaders and texture lookups.
  • Fix vertical scroll bar behaviour in the Multi-Light section.
  • The render progress bar is now functional.
  • Allow adding a rig during live render.

12.0.154 - 2017-05-01

• NSI: Fixed a crash in motion blur (#6589).
• NSI: subdivision surfaces render about 10% faster.
• NSI: smoother live render experience.
• NSI: Added some missing statistics.
• NSI: fix shading problems due to absent ray normalisation.
• NSI: fixed a crash in editable renders when statistics were enable.
• NSI: adding a "matte" attribute that can be set on attributes nodes.
• 3Delight for Katana:
  
  • Fix rendering to Monitor.
  • Fixed a bug which caused some scenes to render several times too
  • Various UI adjustments in DlSettings.
  • Subdivision surfaces are now exported without normals for a much smoother look.
  • Enable "Duplicate" button in the Layers section.
    
    

12.0.153 - 2017-04-25

• 3Delight For Katana:
  • Adding the "matte" attribute to DlObjectSettings to make the underlying object "matte"
  • Fixed layer ordering bug (#6462)

12.0.152 - 2017-04-21

• OSL: surfaceara() on NSI's environment node now returns the real area on the sphere, which is the solid angle in this case.
• Fixed numerical stability issues with tiny angles.
• NSI: added space partition statistics.
• 3Delight for Katana:
  • Add "Display all Lights" toggle in the Multi-Light section (#6443)

12.0.151 - 2017-04-12

• Improved compatibility with older linux distributions.

12.0.150 - 2017-04-12

• Fixed NSI camera location. They were incorrectly offset by the near clipping plane (#6560)
• NSI/OSL: fix a bug that allowed rays to travel past their max depth limit.
• Live render produces smoother renders at te 1st and 2nd corse layers.

12.0.149 - 2017-04-11

• Fixed shader getattribute() on NSI face sets.
• NSI: fix a bug with faceset nodes (#6576) 
• NSI: Better sampling of directional lights.
• NSI: The C++ interface now supports NSI::DoubleArg as a parameter to NSI functions. 

12.0.148 - 2017-04-09

• OSL: we now support the holdout() closure
• NSI: better texture filtering at gazing angles
• 3Delight for Katana:
  
  • Added distant light.

12.0.147 - 2017-04-04

• NSI: Add support for directonal lights as defined by NSI's specs.
• NSI: fixing crashes related to Live Render and displacement shaders (#6558)

12.0.146 - 2017-03-31

12.0.145 - 2017-03-31

• NSI: added support for multiple environments in one scene. 
• NSI: basic support for distant lights. Sampling is not optimal. 
• NSI: adding "angle" attribute to environment nodes.
• NSI: better derivatives computation for displaced surfaces.
• 3Delight for Katana:
  
  • Use circular bucket scanning for live renders.
  • Allows switching between subdivisions and polygonal meshes in live renders.
  • Removed location widget from DlSettings SuperTool.
  • Implemented Mute and Solo features.
  • Fixed initial light linking condition bug.

12.0.144 - 2017-03-30

• NSI: renaming "glossy" rays to "specular" rays. This is the case both in OSL and in NSI.
• NSI: better derivatives on fine displacement.
• 3Delight for Katana:
  • Implemented subdivision mesh export.

12.0.143 - 2017-03-29

• Fixed a crash when OSL environment shader is invalid.
• NSI: introducing smooth subdivision surfaces
• NSI: fixed a memory leak
• NSI: Adding face sets. A new NSI node allowing to set attributes on arbitrary geometry faces. Attribute can be anything from visibility to surface or displacement shaders.
• NSI: better displacement.
• NSI: Fix a bug with instances. The bug was slowing down startup time and leaked memory.
• 3Delight for Katana:
  • Honour number of threads set in RenderSetttings.
  • Added "Visible to Camera" toggle on light SuperTools.
  • Skip some shaders when listing materials.
  • Filter shaders by their type in Material lists.
  • Renamed "Glossy" to "Specular" ray depths. We will be sticking with this nomenclature in NSI and OSL.
  • Revised light super tools material assignment: they now use the same mechanics as normal material assignments and go by the Katana way.
  • Added support for Matrix shader parameters.

12.0.142 -  2017-03-21

• NSI: improved render initialization performance.
• NSI: added support for inter-object visibility. This is a generalization of such features as Light Linking.
  
• NSI: improved live render performance snapy-ness.
• NSI: robustness fix in Python binding: SetAttribute can now receive 0x0 data for string parameters (will be considered as empty).
• Fixed a potential crash bug in 3Delight statistics. Also fixed a memory leak in the same area.
• 3Delight for Katana:
  • Output primitive variables attached to XGen curves (When using DlXGen SuperTool).

12.0.141 - 2017-03-16 

• NSI: added support for environment nodes, as per the specification. As with everything else, environment nods live edits as supported.
• NSI: added a configurable trapezoid filter for motion sampling.
• 3Delight for Katana:
  • Hide area light meshes from camera by default.
  • Added support for light linking.
  • Fix camera XForm live update.

12.0.140 - 2017-03-05

• NSI: added particles node support. As per the specifications, this node allow rendering of tiny particles.
• NSI: added support for all visibility attributes.
• NSI: improved documentation formatting.

12.0.139 - 2017-03-03

• Changed naming of channels in exr layer which is geometric data (point, vector or normal) to more compatible R, G and B instead of the more descriptive x, y and z.
• NSI: curves can now support deformation blur.
• NSI: curves can be specified as a b-spline, in addition to the already supported catmull-rom basis.
• NSI: update particles node documentation.

12.0.138 - 2017-02-28

12.0.137 - 2017-02-23

• NSI: slight improvement in memory consumption for geometric primitives.
• NSI: full support for OSL displacement shaders. Note that displacement shaders are run in object space.
• NSI: update nsi.pdf manual.
• NSI: NSIDisconnect() now accepts a ".all" first parameter for mass connections deletion.
• NSI: transformation edits (live render) are now supported on objects.
• NSI: add a ".global" node for global scene configurations/settings (refer to manual).
• NSI: enable memory statistic in NSI renders.
• NSI: fixed a memory leak.
• NSI: updating Lua interface to accept geometry attributes.
• NSI: fixed a bug in NSIDeleteAttribute().
• renderdl can now execute Lua scene descriptions directly using the '-lua' command line argument.
• 3Delight for Katana:
  • Handle material assignments live updates
  • Export ID pass for Katana monitor
  • Re-worked the DlSettings dialog

12.0.136 - 2017-02-10

• NSI: embryonic support for OSL displacement shaders.
• 3Delight for Katana:
  
  • Enable live update of light material
  • Enable live material updates
  • Export rigs as NSI sets for grouping of lights (Multi-Light feature ported to NSI)

12.0.135 - 2017-02-09

• Due to some changes in our build system to support C++11, a more recent version of glibc and libstdc++ are now required to run 3Delight.
• NSI: fixed a problem which cause some textures not to load at all.
• NSI: fixed issues with back facing geometry. This also fixes OSL's calculatenormal() shadeop in NSI's context. 
• NSI: added a "sortkey" attribute to the output layer node to enable layer sorting in an output driver.
• NSI: changed camera handedness to better conform to most VFX packages.  The camera now looks towards -Z (right handed).
• Can send normal channels exr and deepexr in the same file.
• 3Delight is now 5 to 10% faster on linux.
• 3Delight for Katana:
  
  • Camera now move in live render
  • Removed Image Resolution and Camera in DlSettings (redundant)
  • Introducing DlObjectSettings

12.0.134 - 2017-01-30

• Fixed a bug which could sometimes cause renders to take extremely long to finish.

12.0.133 - 2017-01-25

• Fixed a bug which could cause uneven displacement quality over a primitive when it is very large on screen.
• Added support for single channel exr files to tdlmake.
• NSI: added support for light sets.

12.0.132 - 2017-01-12

• Fixed a potential crash introduced in 12.0.131.

12.0.131 - 2017-01-11

• i-display: fixed navigation key problem on OSX 10.12.
• Fixed light sampling issue with some motion blur settings.

12.0.130 - 2017-01-10

• Fixed artifacts in some environment lookups with trace().
• Added "apertureaspectratio" parameter to RiHider().

12.0.129 - 2017-01-08

• Fixed some speckles with subsurface.

12.0.128 - 2017-01-04

• Fixed raytraced subsurface intensity with large pixel samples setting.
• Fixed possible raytraced subsurface artifacts with thin objects and large pixel samples setting.

12.0.127 - 2016-12-27

• i-display: first step for a better ETA. Replaced "Estimated Render Time" by "Estimated Remaining Time".

12.0.126 - 2016-12-21

• i-display: fixed a crash for Mac with improvement of speed navigation frame.

12.0.125 - 2016-12-17

• i-display: improvement of speed navigation frame with shorcuts left and right for Mac.
• i-display: fixed a crash which occurs with info dialog opens when render many layers with Maya.
• i-display: added new item "Render started" in Summary tab.

12.0.124 - 2016-12-07

• i-display: fixed a crash which occurs after images have been deleted.
• NSI : Camera is now configured using the attributes from the "perspectivecamera" node.
• i-display: Load/save "Enable interactive adjustments of lights in the scene" in preferences.
• i-display: Clicking on texture name in scroll list of scene tab info opens texture image.
• 3Delight for Katana: add support for IDs which allow selecting objects from the Monitor. Note that for now only 3Delight materials support IDs. 

12.0.123 - 2016-11-25

• Fixed a bug with single sided OSL lights which don't have quadratic decay.
• 3Delight for Katana: fixed EXR file output.
• Improved scalability and performance of the OSL path tracer. Gains are especially visible on Windows where a 15% performance improvement is possible (scene dependent).

12.0.122 - 2016-11-23

• 3Delight for Katana is now included in the packages.

12.0.121 - 2016-11-18

• OSL path tracer has been improved in speed and threading scalability. Scenes will render 10% to 30% faster. Scenes relying heavily on textures will improve the most.
• NSI: introducing a C++ wrapper (include "nsi.hpp").

12.0.120 - 2016-11-14

(internal build)

12.0.119 - 2016-11-14

(internal build)

12.0.118 - 2016-11-13

• New light sampler performance has been slightly improved (5%). 
• i-display: Save as JPEG sometimes produced bad images when exporting many files; this has been fixed.  Improved behaviour of "Actual Size" button: it is now lit differently when the image is already displayed in its original size. Improved display of timing statistics. 

12.0.117 - 2016-11-06

• Fixed a crash in the new OSL light sampler with some shaders.
• i-display: performance of the contact sheet mode have been improved and the effect is now smoother.

12.0.116 - 2016-11-02

• New light sampler for OSL. This new technology allows rendering of vast amount of area lights. See Geo Light Sampling Algorithms Comparison for a comparison with existing technology.
• Fixed a bug which would cause some trim curves to hang.
• Fixed accuracy of smoothstep().
• Fixed wrong statistics in ray counts when using the OSL path tracer.

12.0.115 - 2016-09-28

• Improved performance and quality of texture lookups in OSL. We timed the filtering code to be x3 to x4 times faster. The system now offers three different filters: linear, quadratic and cubic.
• Implemented mirror wrap mode in OSL texture() call.
• Implemented "missingcolor" in OSL texture() call.
• NSI: primitive variables and their derivatives are now correctly transformed.
• NSI: fix shading of instances. The shading space was incorrect.
• i-display: fix banding issues in the thumbnail. 
• NSI: completed implementation of NSISetAttributeAtTime.

12.0.114 - 2016-09-12

• NSI: added support for holes in polygons.
• NSI: optimized general scene parsing operations.
• NSI: fixed an IPR crash bug.
• NSI: added basic support for primitive variables in NSI.
• NSI: reduced global memory usage. Large scene can take up to 30% less memory.
• NSI: lua scripts can now receive double precision values.
• Upgraded OSL library version.
• Made texture statistics more readable.

12.0.113 - 2016-08-26

• NSI: fixed matrix orientation, it now matches OSL matrix orientation.

12.0.112 - 2016-08-24

• Fixed a precision problem when reading 32-bit float OpenEXR files
• Fixed a crash in i-display occurring during image loading while using the Contact Sheet (#6368)
• NSI: minor corrections to the documentation
• OSL: implemented debug() closure

12.0.111 - 2016-08-11

• i-display : better handling of color space conversions. PNG and JPEG images are now considered to be in sRGB space when loaded.
• i-display: don't change thumbnail selection when playing (#6110)
• NSI: started implementation and tests of scene edit operations

12.0.110 - 2016-08-08

• NSI: starting documentation of nodes related to image output
• NSI: make some standard libraries available in a LUA context
• NSI: Implemented NSIDisctonnect (nsi.Disconnect in LUA)
• Minor optimisations to the ray-tracer when using motion blurred light sources. Performance gains are measurable only on relatively trivial scenes.
• Fixed naming problem in EXR files.
• i-display: fix color space of the drag & drop cursor when dragging an image from the thumbnail (#5769)
• i-display: draw a graphical hint when dragging many images at the same time from the thumbnail
• i-display: properly scroll thumbnail when selecting images (#5348)
• i-display: apply reference white and black  points to the background plate (#5347)

12.0.109 - 2016-07-26

• Fixed a crash with the OSL renderer on windows 10.

12.0.108 - 2016-07-19

• OSL: improve motion blur sampling in the OSL renderer

12.0.107 - 2016-07-11

• OSL: Updated OSL libraries to the following head: d3abea49b89872bc1358714a
• i-display: added graphical representation (docked view) of statistics inside the rendering window. Statistics are saved along with the file and can be viewed when the file is reloaded into i-display.
• NSI: enable area light sampling for area lights declared using NSIMeshNode
• OSL: invert normal and eta when shading back-facing surfaces. This simplifies shader writing  and avoids using un-desirable faceforward() in  OSL shaders
• OSL: Adding "curve:t" to known OSL attributes (#6328).  Returns a quantity varying from 0 at the base of the curve to 1 at the tip. This is the equivalent of the "v" parametric coordinate in the RenderMan World.

12.0.106 - 2016-07-06

• i-display: Disable Save As ... while rendering an image
• i-display: Don't crash saving empty JPEG images
  
  

12.0.105 - 2016-07-01

• i-display: fixed performance issues when rendering in Contact Sheet mode. The animation of the Contact Sheet is now smooth.
• i-display: fixed a crash occurring when rapidly manipulating the thumbnail view with the mouse.

12.0.104 - 2016-06-29

• i-display: disable color space transformations when viewing JPEG images. 
• Fixed incorrect raytraced subsurface with multicamera render.
• Fixed matte support in deep exr output.

12.0.103 - 2016-06-28

• i-display: Only list "displays" OCIO profiles in the View → Color Profile menu.  
• Changed behavior of edge color override so an object without the override in front of one which has it can have priority.

12.0.102 - 2016-06-23

12.0.101 - 2016-06-18

• Fixed a bug with vertex displacement on subdivision meshes (#6320).

12.0.100 - 2016-06-14

12.0.99 - 2016-06-09

• Fixed deep exr compression with filters which contain negative lobes (eg. sinc).
• Fixed output of alpha channel to exr when a display subset is used.
• Improved DeepEXR compression algorithm. Opaque areas can now contain only one sample instead of a minimum of 2 or 3 previously. This considerably reduces the file size without affecting quality.

12.0.98 - 2016-06-03

• Introducing a new deep EXR compression algorithm that runs up to x20 times faster.

12.0.97 - 2016-06-01

12.0.95 - 2016-05-26 

• A different MIS sampling strategy for the GTR brdf helps fight noise artefacts with low "gamma" values (long highlight tails).

12.0.94 - 2016-05-25

• OSL: fixed support inside 3Delight for Maya. Previously, only environment was rendered properly when using Multi-light (#6287).
• Fixed rendering of very thin curves in some scenes.

12.0.93 - 2016-05-19

• Fixed a crash in i-display that happened when opening very large textures with mipmaps inside (#6279). 

12.0.92 - 2016-05-13

• Fixed deep output when using OpenVDB volumes.

12.0.91 - 2016-05-10

• Added support for __edgethresholdscale. This shader specified variable scales the threshold used to perform edge detection.  

12.0.90 - 2016-05-08

• Fixed a crash with very large shaders compiled with -O0.
• Fixed attribute() sometimes not working when reading point, vector or normal attributes.

12.0.89 - 2016-05-05

• i-display: Avoided using TIFF as the default file type when saving rendered images. Complete image name is used instead.

12.0.88 - 2016-04-28

• Fixed artifacts with edge detection depth based fadeout.
• Implemented facevaryinginterpolateboundary subdiv tag value of 2 to make facevarying variables behave like facevertex.

12.0.87 - Removed because of crash

12.0.86 - 2016-04-25

12.0.85 - 2016-04-19

• OSL: Completed support for multi-light rendering.
• i-display: improved playback speed. Sequences now playback at 60fps without "glitches".

12.0.84 - 2016-04-13

• OSL: Implemented partial support for light categories.

12.0.83 - 2016-04-05

• Improved performance of some cases of volume rendering.

12.0.82 - 2016-04-04

• Improved rendering of multiple volumes.

12.0.81 - 2016-04-01

• Fixed unstable displacement with instances.
  
  

12.0.79 - 2016-03-31

• Fixed Z output with motion blurred camera.

12.0.78 - 2016-03-28

• OSL: Fixed incorrect indirect illumination. Namely, indirect illumination originating from environment lighting was not properly computed. Renders would appear darker than normal when using environment lighting. 

12.0.77 - 2016-03-25

• Fixed a crash.
• Fix a problem that caused renders to wait a couple seconds before finishing when statistics where enabled. This issue has been introduced in package 12.0.75.

12.0.76 - 2016-03-23

• OSL : improved sampling of subsurface closures so it matches the noise level of other closures.
• OSL : implemented clipping planes.

12.0.75 - 2016-03-22

• Fixed a bug which caused some renders to take a very long time to finish.

12.0.74 - 2016-03-18

• Fixed a memory leak in the OSL renderer.
• Better memory management on Windows systems when using large amounts of subdivision surfaces. A 5% memory improvement has been observed on test scenes.

12.0.73 - 2016-03-17

• Improved crack-removal strategy for displaced surfaces.

12.0.72 - 2016-03-17

• Fixed RiAttribute "displacement" "level" functionality when using the REYES renderer.

12.0.71 - 2016-03-16

• Fixed a precision problem with vertex displacement.

12.0.70 - 2016-03-16

• Fixed a precision problem with instances.

12.0.69 - 2016-03-14

• OSL: fixed subsurface scattering bug (subsurface effect had wrong intensity).
• Fixed displacement quality issues when rendering instances (#6199).

12.0.68 - 2016-03-09

• Fixed some interior shaders not being rendered (#6198).
• Fixed occasional hang of deep exr output (#6200).

12.0.67 - 2016-03-07

• Fixed a problem in i-display that caused renders to abort as soon as they start (#6197). 

12.0.66 - 2016-03-03

• OSL: 20% performance improvement on production scene with medium quality settings (shading samples of 200 to 300). For high quality settings (300 to 1000), one can expect 40% performance gain. 
• OSL: pre-pass performance scales better with Shading Samples setting. When using relatively low settings (about 50 shading samples) can make the pre-pass go x4 faster.

12.0.65 - 2016-02-26

• OSL shaders are now found using the search paths.

12.0.64 - 2016-02-25

• Speed improvements to the GGX BRDF.  We timed up to 3% acceleration on scenes that use this BRDF heavily (e. g. OSL 3Delight Material).
• i-display: zoom in and zoom out transitions are now smooth. Added short cut "Ctrl +" and "Ctrl -" to the zoom action in the menu.
• Fixed a bug where setting the matte attribute on one instance would affect all instances of the same object.

12.0.63 - 2016-02-23

• Fixed a crash when using progressive rendering with the OSL path tracer introduced in version 12.0.62.
• Optimized renders with global illumination. Some scenes may be up to 10% faster.
• Fixed a bug with OSL and UDIM textures (#6176).

12.0.62 - 2016-02-18

• Added support for AOVs in the OSL path tracer.

12.0.61 - 2016-02-17

• OSL: Improved sampling of the GGX and GTR functions (removal of noise or "speckles").

12.0.60 - 2016-02-16

• Fixed some valid OSL networks being reported as having a cycle (#6161). 

12.0.59 - 2016-02-14

• Fixed OSL transparency bug when a given closure had a negative weight.
• Fixed crash bug with Open EXR files that used to "autocrop" option.
  
  

12.0.58 - 2016-02-12

• Fixed problems with edge detection when output to a single exr file with other layers (#6150).

12.0.57 - 2016-02-09

• Fixed a bug with OSL GI and transparent surfaces (#6144).

12.0.56 - 2016-02-05

• Fixed visibility of volumes in some cases (#6141).
• Fixed a potential OSL rendering performance issue introduced in 12.0.50.

12.0.55 - 2016-02-02

• i-display: now takes half the memory when rendering floating point data (such as data saved to EXR files).
• Technical: display drivers can now ask for "half" data type (16-bit floats). This is done using the PkDspyFloat16 (refer to the 'ndspy.h' file).

12.0.54 - 2016-02-01

• Fixed a crash with message passing from light shaders (#6136).

12.0.53 - 2016-01-31

• i-display: Fixed some UI glitches in the toolbar (#6127).
• i-display: Fixed layer name display consistency in various UI elements (#6127). 
• i-display: Now support half-float natively. Before, half images (such as EXRs) were stored as 32-Bit floats in memory. The net effect of this change is lower memory usages in most common situations.

12.0.52 - 2016-01-27

• Added basic support of spot lights in OSL renders. The following parameters are supported: color, intensity, decayRate, coneAngle, penumbraAngle and dropoff.

• Fixed an OSL subsurface bug.

  OSL Rendering passes area not working in 3Delight for Maya.

  
  

12.0.51 - 2016-01-26

• Fixed an OSL subsurface bug introduced in 12.0.50.

12.0.50 - 2016-01-25

• Fixed infinite values caused by subsurface scattering in some OSL renders.
• Fixed output of multiple deepexr files.
• OSL texture() call now supports UDIMs.

12.0.49 - 2016-01-18

• Improved environment map sampling for some maps.
• Fixed a source of speckles in some renders.

• i-display: Now supports trackpad multi-touch input. Two fingers swipe scrolling (with inertia) and pinch zooming gestures are supported.

12.0.48 - 2016-01-12

12.0.47 - 2016-01-04

• i-display: Fixed troubles when rendering from inside Maya.

12.0.46 - 2015-12-29

• Improved OSL statistics.
• Added high quality environment sampling to the OSL renderer.
• Fixed subtle problems with displacements when using the OSL renderer.
• Improved transparency in the OSL renderer.
• i-display: Now supports OCIO configurations.
• i-display: Fixed rendering issues in thumbnails.
• i-display: Better rendering of the region tool when in Contact Sheet mode.

12.0.45 - 2015-12-19

• i-display: Added an application icon.
• Small optimizations in the OSL renderer.

12.0.44 - 2015-12-17

• i-display: Fixed aspect ratio problems.

12.0.43 - 2015-12-12

• Improved rendering of edge detection width varying width.

12.0.42 - 2015-12-11

• i-display: Added a toolbar. It can be customised using Windows -> Customize Toolbar.
  

• Fixed a crash with interior shaders using outputvolumefragment() to output AOVs.

12.0.41 - 2015-12-10

• Fixed getvar( null, ... ) with vertex displacement.

12.0.40 - 2015-12-04

• i-display: Added a region tool. The tool allows for easy re-render on specific image regions.

12.0.39 - 2015-12-02

• Fixed evaluation of interior shaders for transmission rays which end inside a volume box (#6061).

12.0.38 - 2015-11-21

• Added support for OpenColorIO transforms on display drivers.

12.0.37 - 2015-11-15

12.0.36 - 2015-11-14

12.0.35 - 2015-11-11

• Fixed result of shadow(), gather(), occlusion() and indirectdiffuse() with multicamera rendering.
• Fixed crashes with "osltracer" when using progressive mode.

12.0.34 - 2015-11-09

12.0.33 - 2015-11-04

• New "horizon" parameter added to trace().

12.0.32 - 2015-10-30

• Fixed DoF with spherical camera.

12.0.31 - 2015-10-24

• Fixed bad sampling of GGX and GTR distributions in some cases.

12.0.30 - 2015-10-20

• Fixed a crash with Rif filters and IPR.

12.0.29 - 2015-10-17

12.0.28 - 2015-10-10

• Improved sampling of GGX ("glass-ggx") and GTR ("glass-gtr") distributions when used to render reflection. Sampling of refraction alone, or sampling of reflection and refraction together is unchanged.
• Corrected bad area light sampling in the first passes of an IPR session (#5994).

12.0.27 - 2015-10-06

• The deepexr output now supports arbitrary pixel filters.

12.0.26 - 2015-09-25

• i-Display: a visual glitch when switching to and from full screen mode has been fixed (Mac OS X only). 

12.0.25 - 2015-09-23

• Fixed subsurface sometimes being too blurry with low samples count (#6016).

12.0.24 - 2015-09-18

12.0.23 - 2015-09-17

• Added "label" parameter to subsurface() shadeop.

12.0.22 - 2015-09-17

• Fixed __edgewidthscale, __edgecolor and __edgealpha variables sometimes not working when edge detection is used with display subsets (#5995).

12.0.21 - 2015-09-10

12.0.20 - 2015-09-08

• Fixed behavior of random() with light categories. It is now the same for all light category AOVs (#6006).
• Fixed a case of incorrect texture() filtering of diffuse rays with blur (#6007).

12.0.19 - 2015-08-25

• The __edgewidthscale variable used for outlines is now selected by depth instead of using the maximum value.

12.0.18 - 2015-08-04

12.0.17 - 2015-08-01

• i-display: Fixed handling of EXR files. Features such as "data window" and "display window" were not working.
• i-display: Can now read Deep EXR files. 
• Fixed uniform primitive variable output as AOVs with the raytrace hider.

12.0.16 - 2015-07-31

• Improved memory use of deepexr display driver.

12.0.15 - 2015-07-25

• hdri2tif is no longer part of the package.
  
  

• i-display: Added multi-layer support for openEXR (reading and writing). 

12.0.13 - 2015-07-11

• subsurface() now accepts the "subset" parameter (#5972).

12.0.12 - 2015-07-10

12.0.11 - 2015-07-10

• rayinfo( "depth", ... ) now correctly accounts for hair bounces.

12.0.10 - 2015-07-09

• i-display: Fixing a crash related to the Light Mixer (#5964).

12.0.9 - 2015-07-02

• i-display: Fixed a bug where switching to the Contact Sheet mode would show black images (#5957).
• Removed the different tiling choices in multi-host rendering. Only the "balanced" strategy has been retained.

12.0.8 - 2015-06-29

• i-display: Fixed a bug introduced in 12.0.7.
• Fixed artifacts (occasional bright pixels) with subsurface single scattering.

12.0.7 - 2015-06-26

• Added spherical projection support for cameras (#5930 and #5948).
• Added "hairdepth" query to rayinfo(). 

12.0.6 - 2015-06-18

• Improved sampling of area lights. Long and thin area lights are faster to sample and exhibit less noise. 
• Fixed an IPR bug in with camera manipulations (parts of screen not being rendered). Issue #5946.
• i-display: Fixed a bug that affected the Drag & Drop feature (on Linux platforms only it seems but could also affect other platforms). The symptoms were the subject of a topic in the forum.

12.0.6 - 2015-06-15

• In Contact sheet mode, draws image's (or layer's) name over each image.

12.0.5 - 2015-06-11

• i-display: Fixed a crash.

12.0.4 - 2015-06-10

• Fixed a crash in raytraced subsurface scattering.

12.0.3 - 2015-06-08

12.0.2 - 2015-06-04

• trace()'s glass-ggx distribution now accepts anisotropic parameter specification ( "udir" and "roughnessv" ).
• Fixed raytraced subsurface scattering of very thin objects.

12.0.0 - 2015-06-01

• i-display: Now supports Retina (high DPI) displays.

12.0.83 - Upcoming

• Improved performance of some cases of volume rendering.