13.1.6 - Upcoming

3Delight for Maya

• Fixed an issue with the "Render" menu item (issue 6821).

13.1.5 - 2017-11-23

3Delight

• Volume shaders now support directional lights and environment lights.
• Fixed a bug with volume shaders when the camera is close to an object.

3Delight for Maya

• Added support for editing many more shader parameter types during a live render. All types should now be supported.

13.1.4 - 2017-11-21

3Delight for Katana

• A more friendly parameterization for 3Delight Atmosphere.
• Adding Volume Contribution to all light sources. This allows the control of light's intensity inside the volume.
• Color Correction node has a better Vibrance control.
• Layered Material now works with subsurface materials.

13.1.3 - 2017-11-16

3Delight

• A new subsurface sampling strategy removes the RGB coloured dots. Especially in lower quality renders. This was especially visible in the first passes of the progressive and live renders.
• Improved sampling of atmosphere volumes,
• OSL shaders can now ask for "curve:t" attribute using the getattribute() function. It gives a value from 0 to 1 along the curve's length. NSI doesn't defined predefined uv coordinates on geometry so this is necessary for easy access to such a useful quantity.
• Fixed linear interpolation of attributes on catmull-clark subdivision surfaces.
• Faster starting time in progressive and live renders.

3Delight for Katana

• Added support for render camera changes in live render.
• Added a simple material surfaceShader that allows to have a constant colour.
• Accept an atmosphere shader in DlSettings.
• Draw a sphere in the viewport to represent a Point Light of a given radius.

Materials

• Introducing 3Delight Atmosphere, an artist friendly atmosphere shader.
• Colour Variation shader now gives per-curve variation. 
• Hair & Fur material provides better blending control of root and tip colours.

13.1.2 - 2017-11-07

Internal release.

13.1.1 - 2017-11-06

3Delight for Katana

• Changed the orientation of the cylinder area light to be aligned with the Y axis.

Materials and Shaders

• Introducing a Color Variation node for both Katana and Maya.
• Introducing a Color Correction node for both Katana and Maya.

13.1.0 - 2017-11-05

3Delight

• Fix a bug when rays reach their maximum depth. This could have caused various mistakes in lighting.

3Delight for Katana

• Fix aspect ratio in Live camera changes.
• Automatic refresh of the light list in Multi-Light UI. The Refresh button has been removed.

13.0.20 - 2017-11-01

3Delight for Katana

• Renders done interactively now use lowered process priority in favour of better UI responsiveness in Katana.
• High Dynamic ranges images are now rendered with better quality: edges of area lights and intense highlights are anti-aliased properly. 

Materials 

• Fixed the specular component of the Skin shader.
• Added a Color Correction node. 

3Delight and NSI

• Added .global.renderatlowpriority attribute to enable low priority for the rendering process.
• Added the maximumvalue attribute on NSI outputlayer nodes.  This enables a new tone mapping algorithm that improves overall image quality when very bright pixels are present.
• The network cache has now a default directory. Enabling the feature is a matter of setting a network cache size. More information in The 3delight.config File.

13.0.19 - 2017-10-27

3Delight for Katana

• Added support for Cryptomatte IDs.
• Moved framebuffer option from DlSettings to the Preferences dialog.
• The Performance and Render Engine sections of DlSettings has been removed.
• Batch and disk renders now always use horizontal bucket scanning.
• Fixed Auxiliary Field of View in the Camera's projection.
• Statistics are now always embedded in rendered images.

3Delight and NSI

• 3delight.config file now accepts a new attribute: texturememory

13.0.18 - 2017-10-25

Materials

• Hair&Fur shader has now tip and root colour controls as well as an intensity multiplier.

13.0.17 - 2017-10-23

Materials

• Added 3Delight Layered material. The material can combine up to three different layers.

NSI

• 3delight.config file is not read in the current working direction anymore.

13.0.16 - 2017-10-22

3Delight for Katana

• Added support for Point Lights.

NSI

• Added rudimentary support for scattering inside volumes.

13.0.15 - 2017-10-20

3Delight for Katana

• Restrict terminal OSL shaders to these outputting a BRDF (usability)

13.0.14 - 2017-10-19

3Delight for Katana

• Various improvement in parameter naming, readability and usability of shaders (no functionality changes).
• Adding "atmosphere" section in DlSettings.
• Fixes for hiDPI screens. This includes the Multi-Light section which is now DPI-independent.

NSI

• Fixed a bug that made larger particles appear "clipped".

13.0.13 - 2017-10-11

3Delight for Katana

• Added viewer manipulators for Gobo and Decay light filters
• Better handling of "vectorSpace" displacementShader parameter.
• Fixed vector displacement.

NSI

• Changed the origin of textures for the texture() shadeop to be the lower left corner.
• Fixed crashes when editing a scene from multiple threads.
• Added .quality.volumesamples attribute to control volume sampling quality
• Report invalid OSL spaces passed to transform(). 3Delight takes care of limited the amount of error messages this might produce to a reasonable level.
• Improved displacement in multi-camera scenes.
• Improved filtering of displacement texture.
• Improved displacement of object instances.
• Improved support for OSL's transform() function.

13.0.12 - 2017-10-01

NSI

• Basic framework for volumes declaration

13.0.11 - 2017-09-25

• Fix bad renders when a second render is done with the same scene (start, stop, start sequence).

13.0.10 - 2017-09-21

3Delight for Katana

• • Removed useless specular depth control. 3Delight offers three simple depth controls: reflecton, refraction, hair and diffuse.

13.0.9 - 2017-09-11

3Delight for Katana

• Display an error message when a Katana license is not available for disk renders.
• The DlCameraSettings now respect Katana'a attribute inheritance.

13.0.8 - 2017-09-02

3Delight for Katana

• The package now recognizes Katana's interactive license.
• Added a Sky Light shader.

NSI

• OSL errors are now reported through the NSI error handler

13.0.7 - 2017-09-01

3Delight for Katana

• Added Sky Light package. It uses the 3Delight Sky shader.
• The Environment Light package now uses the environment light shader by default. Existing Katana lights are not affected by this change.
• Added Geometry ID, Scene Path ID and Surface Shader ID to the list of supported AOVs.
• Renamed P and N AOVs to P.camera and N.camera. This will allow is to support those quantities in different spaces.

13.0.6 - 2017-08-28

• Fixed unwanted shadowing of environment by area lights.
• Improved updates during live rendering sessions.
• Added support for the following built-in AOVs: P, N, ID.scenepath, ID.geometry, ID.surface.
• Shading Samples was not functional (locked) since 13.0.4; it is now fixed.
• Removed "specular" depth. Rays are now tagged as wither reflection or refraction depending on the direction they take when interacting with a specular BRDF. This leaves us with four different ray depths: reflection, refraction, diffuse and hair. This work also fixes refraction depth problems (was impossible to control because of a bug with the specular ray-type overriding it).
• Fixed problems when modifying displacements during live render.

3Delight for Katana

• The DlSetting's Multi-light selection is now applied on all image layers that are using a Shading Component AOV.
• The DlSetting's Multi-LIght section is now always displayed - previously, an image layer had to be selected for the Multi-Light to be shown.
• Existing DlSettings nodes will need to be re-created.

13.0.5 - 2017-08-17

• Implement NSIRenderControl's stop and start actions.   These actions allow the stopping and re-starting of any asynchroneous render without destroying the scene. One particular application is the modification of the output chain (e.g. resolution) while rendering.
• Fixed crashes in asynchronous renders interruptions

3Delight for Katana

• Mutli-light rendered layers now appear correctly in Katana Monitor.
• The Multi-light section now detects and warns about missing lights & rigs that were previously selected for multi-light output.
• The <light> token can now be used as a part of the Image Filename.

13.0.4 - 2017-08-15

• Re-organize Hair & Fur material parameters in a more user friendly manner.
  

13.0.3 - 2017-08-12

• Improved sampling of NSI directional lights. Some bright spots was appearing when both directional and area lights were in the same scene.
• Reduced coarseness of live renders.

3Delight for Katana

• Multi-Light AOVs are now correctly output to the Katana Monitor (issue #6428). 

13.0.2 - 2017-08-03

• Fix area light shadow casting bug. Area lights could cast shadows from environments even if not requested. Issues #6658 and #6693.
• Fix numerical instability that produced (albeit very rarely) bad noise from light sources.
• renderdl: restore the "-t" and the "-catrib" command line option. The "-catrib" option has been renamed to "-cat".

NSI

• NSIRenderControl() now accepts a "stoppercallback". The callback is called, along with user data, when a render is done. This allows for asynchronous renders to communicate completion to parent program.
• NSIEvaluate() can now read NSI archives from stdin when "-" is passed as the filename.

3Delight for Katana

• Fixed Mute and Solo controls for rigs which contain an Incandescence Light.

13.0.1 - 2017-07-28

13.0.0 - 2017-07-26

3Delight for Katana

• Mute and Solo controls now work with the Incandescence Light.
• Fixed multi-light output of the new Incandescence Light.
• The installer now sets the DEFAULT_RENDER environment variable to dl.