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# Release Notes for Katana 2.6v4

# Release Date

27 October 2017

# System Requirements

## Qualified Operating Systems

- Windows 7 64-bit
- Linux CentOS/RHEL 6

## Hardware Requirements

- A graphics card which supports OpenGL shader model 4.0

# Bug Fixes

- TP 262994 - Changes to Interactive Render Filters were not being applied when performing a Live Render from a Render node.

- TP 272409 - The File Browser's file sequence listings were populated according to a Foundry standard, rather than using the findSequence() method of the current File Sequence Plug-in. Files that are part of a sequence according to the File Sequence Plug-in, but not the Foundry standard, appeared as individual files rather than a sequence.

- TP 309705 - The LookFileBake node type captures materials referenced by materialAssign attributes, and the LookFileResolve node type tries to resolve these materialAssign attributes to the appropriate material attributes, if the assignment point to material locations that were baked. The resolve step has been modified so that if there's a materialAssign attribute which doesn't point to a material that was baked with the look file (e.g. if they're not in /root/materials), then:

  1. The info.lookfile.materialAssign attribute will not be set, and
  2. The value of the materialAssign attribute will be passed through unresolved if the value of that attribute doesn't start with "/root/materials".

  The above also applies to rendererProceduralAssign and rendererProcedural attributes.

- TP 310341 - Right-clicking parameters of a locked node raised an exception and failed to show a context menu.

# Known Issues

- TP 276024 - Example VIewer: objects recently shown in the scene graph sometimes fail to appear in the Example Viewer. This can be worked around by hiding and showing the Example Viewer tab.

- TP 269449 - Choosing Edit Shader Parameters from the main wrench menu of Material nodes does not show wrench buttons next to shader parameters. This can be worked around by toggling the edit flag on the node.

- TP 218742 - (Windows only) Katana must be installed to a path no longer than ~140 characters. Attempting to install to a longer path results in an unintuitive error: "The system cannot find the path specified."

- TP 208802 - Closing the Histogram tab after use leaves the Monitor tab unable to display rendered images.

- TP 207623 - When entering a single number only in a Backdrop node, that number is not preserved when saving a Katana project or when copying and pasting that node.

- TP 199304 - The namespace parameter on Material nodes wrongly allows the insertion of Unicode codepoints outside the ASCII range.

- TP 191052 - Katana does not have any support for the texture reference object workflows of V-Ray for Maya.

- TP 188533 - Expressions linked to non-local parameters on not previously edited Material nodes can't be evaluated.

- TP 176598 - Use of nodes that modify Graph State Variables in Interactive Render Filters is not currently supported.

- TP 123558 / BZ 50911 - When changing an array parameter's tuple count/size, any corresponding attributes are not properly updated in the Attributes tab.

- TP 114182 / BZ 49288 - When exporting a Catalog item you need to specify the export folder path to an existing folder. If the folder you're trying to export to does not exist on disk Katana will fail to export.

- TP 112544 / BZ 49051 - The Viewer tab may lose sync with the Scene Graph tab when changes to expansion state are interrupted.

- TP 105434 / BZ 47520 - Reference Expressions may not refer to dynamic parameters such as shader parameters.

- TP 94052 / BZ 44199 - The Repeat Previous Render menu command only works on renders started from a 3D node's context menu.

- TP 85118 / BZ 41152 - When editing parameters of a node that is part of a LiveGroup node and reloading the parent LiveGroup node, the UI state of the Parameters tab is reset. This includes scroll bar positions, selections of items, and selections of nested tabs (for example Object, Material and Linking tabs for a Gaffer node).

- TP 84998 / BZ 41092 - When reloading a LiveGroup node's parameter interface and contents from its source, parameters of child nodes that are edited in floating panes disappear from those panes.

- TP 84326 / BZ 40709 - The Alembic library does not support multiple process or thread access to an Alembic file. This means that a crash occurs when modifying an Alembic file outside Katana, while it's loaded in an open Katana scene. To avoid this, you must Flush Caches before attempting to update any modified Alembic files.

- TP 84020 / BZ 40598 - Reverting a LiveGroup node does not revert its user parameters.

- TP 84019 / BZ 40599 - Parameters that are added to LiveGroup nodes are wrongly discarded when performing a reload from source, leading to loss of data.

- TP 84018 / BZ 40600 - Undoing a revert of an unpublished LiveGroup node does not restore the LiveGroup's editable and modified state.

- TP 83061 / BZ 40237 - Nodes can be dragged into the Group bubble of a non-editable LiveGroup node.

- TP 80738 / BZ 39261 - Operations that lock and unlock nodes do not currently create entries in the Undo History, which can lead to an incorrect node graph state when undoing and redoing operations.

- TP 74799 / BZ 36926 - The rendererSettings > displayOptions parameter of a RenderOutputDefine node for the PRMan renderer, shown when its type parameter is set to raw, cannot be set using the Parameters tab.

  For a workaround, the UpdatePrmanSettingNodes shelf script can be used. The script, available in the PRMan17 shelf, creates an AttributeScript node that converts display options, set using string attributes, to group attributes.

- TP 71965 / BZ 36691 - State badges are currently shown for attribute values of dynamic array child parameters, even though only their parent array parameter should appear with a state badge.

- TP 71954 / BZ 36663 - It is not currently possible to sort notifications in the Notifications popup window.

- TP 70217 / BZ 36176 - The 2D node Disk Render Upstream Render Outputs option does not use the batch render method, batchRender, for upstream render nodes, instead using diskRender.

- TP 70196 / BZ 36170 - Control keys (notably arrow keys) do not function as expected in shell mode.

- TP 65347 / BZ 34949 - Using Compiz can lead to text fields not receiving focus events correctly due to an incompatibility between Compiz and Qt. Depending on your configuration, disabling Compiz "desktop effects" may resolve the problem.

- TP 65242 / BZ 34870 - Katana doesn't support render output directory creation for shadow, merge and script output types.

- TP 60457 / BZ 31790 - Setting an array or group parameter to an expression results in an invalid expression. Upon setting a valid expression (for example, an evaluation of an equivalent parameter on another node using getParam), the parameter is not immediately updated. To workaround this issue, close and reopen the parameter, or flush caches while the node is not edited.

- TP 56545 / BZ 28549 - Main menu commands that create nodes, notably File > Import..., File > Import LiveGroup..., and Help > I want a pony, do not create the nodes in a Group or LiveGroup node that has been entered in a Node Graph tab, instead they create the nodes in the root level of the node graph document.

- TP 12517 / BZ 16168 - Only one Monitor tab may display the results of a Preview Render. The use of multiple Monitor tabs is not currently supported.

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