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# Release Notes for Nuke and Hiero 15.0v2

# Release Date

16 November 2023

# New Features

There are no new features in this release.

# Feature Enhancements

• ID 552652 - Add the ability to manually define the NDI stream name used by Nuke/Studio/Hiero.

• ID 554786 - [Saturation Slider] Nuke Env Variable to disable Saturation Slider.

• ID 556915 - [OpenAssetIO] Update OpenAssetIO version to v1.0.0-beta.1.0.

# Bug Fixes

• ID 159696 - [PUBLIC] Workspaces in a custom location aren't available to Nuke unless HIERO_PLUGIN_PATH is set

• ID 215838 - [PUBLIC] Soft effects become disabled when a clip in the timeline is retimed or altered

• ID 308171 - [PUBLIC] Change Hiero's "save as" dialogue box to default to .hrox instead of .nk when Hiero cannot locate a license

• ID 490646 - [PUBLIC] Nuke crashes when opening .nk scripts that have the OCIO Config set to "custom" but the OCIO config path is empty

• ID 495149 - [PUBLIC] The Viewer turns black when using the low frequency GPU dithering algorithm

• ID 498115 - [PUBLIC] Viewer controls are not applied when making changes while viewing a clip with RAW data colorspace

• ID 510314 - [Studio] Memory usage increase when importing lots of Pro Res movs

• ID 538725 - [3D Arch] File path knob unfunctional in Light nodes

• ID 542908 - [Version Linking] Unlinked icon persists on bin item, when linking all track item versions to bin item

• ID 546741 [PUBLIC] ARRI Alexa 35 video_rendering_version metadata is spelled "video_rendeing_version" in Nuke

• ID 548101 [ARRI ProRes] ALEXA 35 SUP 1.2.0 ProRes .mxf files do not load in 14.1/15.0

• ID 549340 [TL Review] Auto select disappears when track dimensions are changed

• ID 549799 Load all payloads button looks "blurry"

• ID 551086 [Disk cache] Dissolves not handled correctly

• ID 551996 Deleting a custom tag while it is in the Spreadsheet filter field crashes Nuke

• ID 552652 Add the ability to manually define the NDI stream name used by Nuke/Studio/Hiero

• ID 552856 [PUBLIC] A one pixel border is visible when using the ScannedGrain node with a grain format smaller than the project format size in Nuke

• ID 553643 [3D Arch] Focus while in Component mode in specific asset causes grey screen

• ID 554390 Timeline export mov pixel format setting has no effect

• ID 554564 OCIO NDK examples will not build due to missing getAliasesFromTransform

• ID 554582 [CopyCat] OOM message doesn't appear with MultiRes enabled

• ID 554584 Cara Redwoods Script Crash (Windows)

• ID 555348 [r3d] Empty Color Space (Look) knob after opening legacy .nk script with r3d file

• ID 555385 [MO] [VR] VR Oculus Rift not outputting to headset in the node graph

• ID 555473 [Node graph] [Text effect] when typing text information in the text node, hitting the space bar will max/minimise the workspace panel like the hotkey

• ID 555510 [Scene Graph] Return key conflict between search and dialog in browser

• ID 555532 [3D Arch] ScanlineRender1 and 2 not recognising the TimeOffset and FrameRange as a node when connected after Camera node and causes Nuke to hang

• ID 555542 [Inference] Toggling UseGPUIfAvalible doesn't work

• ID 555568 [LensDistortion] Lens Distortion preview not working with half-floats

• ID 555570 Blink Particles examples not working: AttractToSphere ParticleFlock ParticleHelixFlow

• ID 556389 [NDI] A fresh Nuke project does not change the stream name from 'Untitled' to the Project name when saved

• ID 556657 [PUBLIC] MXF files are Read in Full Range regardless of the Data Range knob

• ID 556745 [PUBLIC] Certain Arri Alexa 35 .mxf ProRes no longer open erroring saying: out of frame range

• ID 557058 [PUBLIC] Python headers are not shipped with Nuke

• ID 558695 [15.0 only][ARRI 8] Timecode from Alexa 35 files is wrong in Nuke and Nuke Studio

# New Known Issues Specific to Nuke 15.0

This section covers new known issues and gives workarounds for them, where appropriate.

• ID 555716 - [CopyCat][DistTraining] Windows cannot use IPv4 to train

• ID 555714 - [CopyCat][DistTraining] Linux cannot use IPv6 to train

• ID 555713 - [CopyCat][DistTrain] Distributed Training doesn't work across os platforms

• ID 555638 - [Inference] When hitting OOM on OSX GPU causes crash

• ID 555564 - [TL Review] Studio only exports soft selected clips, and their linked audio

• ID 555542 - [Inference] Toggling UseGPUIfAvalible doesn't work

• ID 555348 - [r3d] Empty Color Space (Look) knob after opening legacy .nk script with r3d file

• ID 555296 - Saturation appears as an option in Studio MO node (when there is no Saturation control present)

• ID 555167 - [Cattery] Pytorch MPS when using GPU causes different output on Custom Models

• ID 554834 - [CopyCat] LiveUpdates causes script to be in modified state

• ID 554798 - [CopyCat] When doing more than 1 training into directory they will all be selected

• ID 554790 - [CopyCat] Deleting trainings from datadirectory will cause unexpected behaviour in progress tab

• ID 554762 - [CopyCat] getting training updates sometimes contact sheet will appear blank

• ID 554499 - [TL Review] - Playhead in dope sheet and curve editor resets to 0 after an edit

• ID 553640 - Specific MXF (op-1a 4:4:4 12bit) files fails to read in resolve

• ID 553422 - [Sync Review] Changing the active playhead in one session does not change the active playhead in the other

• ID 551945 - C_CameraSolver - Undo command not removing all Camera Ingest nodes

• ID 551448 - [Scenegraph] Pop-Up Scenegraph does not open on SLR2

• ID 550941 - [CopyCat] crashes with unhandled exception when transform node with expression

• ID 549579 - [CopyCat] Progress bar slow to appear after execution

• ID 549062 - [CopyCat][DisTraining] Executing 2 CopyCat nodes with different parameters works

• ID 548563 - [Lens] Moving the denominator knobs can cause UI to block

• ID 548101 - [ARRI ProRes] ALEXA 35 SUP 1.2.0 ProRes .mxf files do not load in 14.1/15.0

• ID 548082 - OFX Denoise and OFlow not supported natively on Apple Silicon

• ID 547428 - Soft effects using RIP fail if OpenGL GPU does not match the OpenCL GPU (Blink Device)

• ID 546692 - [OpenAssetIO] Nuke displays balReader not found with correct OpenAssetIO setup

• ID 546565 - [3D Arch] Scene graph not clearing when viewer is disconnected

• ID 546379 - [Text] Text node xJustify and yJustify can invert in behaviour

• ID 545900 - [VR] OVR Service terminal OpenHMD Error

• ID 545782 - [Blink] Disabling/Enabling Tracks and Track Items causes the UI Spinner to appear

• ID 544629 - [3D Arch] Selected overlapping vertices not drawn

• ID 543275 - [3D Arch] Disabling and re-enabling a Geo node removes material

• ID 543135 - [OCIOv2.1] - Switching to another config loads wrong Input Transform

• ID 542483 - [Apple Silicon] Floating point errors between ARM and INTEL hardware

• ID 542145 - [3D Arch] Nuke crash from animating grade values - SLR2

• ID 541985 - [Apple Silicon] Changing "screen colour' on Ultimatte back to default causes viewer to become solid colour

• ID 541082 - [snap-menu][3D Arch] snap-menu will not work if vertex is single click selected

• ID 538730 - [3D Arch] EnviromentLights scene input only accepts lights and cameras

• ID 538725 - [3D Arch] File path knob unfunctional in Light nodes

• ID 538645 - [Blink] Heavy Blinkscripts with multiple parameters will sometimes render incorrectly on Mac Arm

• ID 537047 - [Scene graph pop-up] dialogue scale above a certain size will not be saved

• ID 537033 - OCIODisplay's display and view knobs not updated after changing OCIO config in Nuke

• ID 532048 - [3d Arch] DirectLight not illuminating scene objects in 3D Hydra

• ID 527336 - [3D Arch] Camera 'Display at world Scale' does nothing

# Qualified Operating Systems

• macOS Monterey (12.x), or macOS Ventura (13.x). Nuke 15.0 supports Apple's silicon hardware on M1 and M2 chips.

Article: For more information on Foundry products and supported macOS versions, see Foundry Knowledge Base article Q100592.

• Windows 10 (64-bit) or Windows 11 (64-bit)

• Linux Rocky 9.0 (64-bit)

Warning: Nuke requires libnuma to run under Linux distributions, the library is required by the Nablet H264 Codec SDK.

Note: The currently supported version of VFX Reference Platform includes library versions that are only compatible with Rocky 9.0.

Other operating systems may work, but have not been fully tested.

## Requirements for Nuke's GPU Acceleration

If you want to enable Nuke to calculate certain nodes using the GPU, there are some additional requirements.

#### NVIDIA

An NVIDIA GPU with graphics drivers capable of running CUDA 11.8, or above. A list of the compute capabilities of NVIDIA GPUs is available at https://developer.nvidia.com/cuda-gpus

Note: The compute capability is a property of the GPU hardware and can't be altered by a software update.

With graphics drivers capable of running CUDA 11.8, or above. On Windows and Linux, CUDA graphics drivers are bundled with the regular drivers for your NVIDIA GPU. Driver versions 522.06 (Windows) and 520.61.05 (Linux), or above are required. See https://www.nvidia.com/Download/Find.aspx for more information on compatible drivers.

Note: We recommend using the latest graphics drivers, where possible, regardless of operating system.

#### AMD

Note: Bitwise equality between GPU and CPU holds in most cases, but for some operations there are limitations to the accuracy possible with this configuration.

• On Windows and Linux, an AMD GPU from the following list:

Note: Other AMD GPUs may work, but have not been fully tested.

• AMD Radeon PRO W7900

• AMD Radeon PRO W6600

• AMD Radeon PRO W6800

• AMD Radeon Pro W5700

• AMD Radeon RX 6800 XT

Note: For information on the recommended driver for each GPU, see https://www.amd.com/en/support

• On Mac, integrated AMD GPUs are supported on the following Intel CPU Macs:

• Any late 2013 Mac Pro onward (including 2019 Mac Pro),

• Mid-2015 MacBook Pros onward, and

• Late 2017 iMac Pros onward.

All supported Mac Pros include a multi-GPU support option, where applicable. Bitwise equality between GPU and CPU holds in most cases, but for some operations, there are limitations to the accuracy possible with this configuration.

Warning: Although AMD GPUs are enabled on other Mac models, they are not officially supported and used at your own risk.

#### Multi-GPU Processing

Nuke's GPU support includes an Enable multi-GPU support option. When enabled in the preferences, GPU processing is shared between the available GPUs for extra processing speed.

Note: Multi-GPU processing is only available for identical GPUs in the same machine. For example, two NVIDIA GeForce GTX 1080s or two AMD Radeon™ Pro WX 9100s.

## GPU Requirements for the Machine Learning Toolset

Training using the CopyCat node requires an NVIDIA GPU, with compute capability 3.5 or above; or MacOS Apple silicon integrated GPUs.

If an appropriate GPU is not available, Inference and other machine learning plug-ins can run on the CPU with significantly degraded performance.

# Developer Notes

As Nuke develops, we sometimes have to make changes to the API and ABI under the hood. We try to keep these changes to a minimum and only for certain releases, but from time to time API and ABI compatibility is not guaranteed. See the following table for the situations when you may have to recompile your plug-ins and/or make changes to the source code.

Release Type | Example | Compatibility | Recompile | Rewrite
--- | --- | --- | --- | ---
Version | 14.0v1 to 14.0v2 | API and ABI |  |
Point | 14.0v1 to 14.1v1 | API |  |
Major | 14.0v1 to 15.0v1 | - |  |

Additionally, node Class() names occasionally change between major releases. While these changes do not affect legacy scripts, you may not get the results you were expecting if a node class has been modified. The toolbars.py file, used to create Nuke's node toolbar, contains all the current node class names and is located in <install_directory>/plugins/nukescripts/ for reference.
As an example, between Nuke 13 and Nuke 14, the Axis node Class() changed from Axis3 to Axis4. In the toolbars.py file for the two releases, the entries for the Axis node appear as follows:
m3Dclassic.addCommand("Axis", "nuke.createNode(\"Axis3\")", icon="Axis.png", tag=MenuItemTag.Classic, node="Axis3", tagTarget=MenuItemTagTargetFlag.TabMenu)
m3D.addCommand("Axis", "nuke.createNode(\"Axis4\")", icon="Axis_3D.png", tag=MenuItemTag.Beta, node="Axis4")