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# Release Notes for Nuke and Hiero 12.0v3

# Release Date

14 November 2019

# Qualified Operating Systems

• macOS High Sierra (10.13) or macOS Mojave (10.14)

• Windows 7 or Windows 10 (64-bit)

• CentOS 7.4 (64-bit), or later

Note: The VFX Platform 2019 upgrade includes library versions that are only compatible with CentOS 7.4, or later. Nuke 12 is qualified on the Centos 7.4, 7.5, and 7.6 distributions.

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 compute capability 3.0 (Kepler) 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 10.1 or above. On Windows and Linux, CUDA graphics drivers are bundled with the regular drivers for your NVIDIA GPU. Driver versions 418.96 (Windows) and 418.39 (Linux), or above are required. See https://www.nvidia.com/Download/Find.aspx for more information.

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

#### AMD

Note: Bit-wise 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.

• Radeon™ RX 480

• Radeon™ Pro WX 7100

• Radeon™ Pro WX 9100

• Radeon™ Pro SSG

• Radeon™ Pro WX 8200

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

• On Mac, AMD GPUs are supported on any late 2013 Mac Pro, mid 2015 MacBook Pros onward, and late 2017 iMac Pros.

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.

# New Features

There are no new features in this release.

# Feature Enhancements

There are no feature enhancements in this release.

# Bug Fixes

• ID 161075 - Monitor Output: Playback of stereo RGB footage using YUV conversion did not work as expected on Blackmagic 4K Extreme 12g cards.

• ID 373633 - Linux only: Setting monitor output to 2160p30 stopped Nuke achieving realtime playback.

• ID 388835 - Timeline Playback: Enabling monitor output occasionally caused the Viewer to drop frames during playback with Blackmagic Decklink 4K Extreme cards.

• ID 393610 - CaraVR: Standard Nuke Write nodes included a new CaraVR tab.

• ID 399741 - Monitor Output: Opening a project set to 4K output and immediately enabling monitor output through an AJA Kona 4 card displayed garbage on the monitor.

• ID 399908 - Deep: Using DeepRecolor with target input alpha enabled on a single channel created artifacts in the other channels.

• ID 400497 - High DPI: The Crop node bounding box outline was thinner and smaller than in legacy versions of Nuke.

• ID 400505 - High DPI: The CornerPin node bounding box outline was thinner and smaller than in legacy versions of Nuke.

• ID 402095 - macOS only: Monitor output stuttered or jumped when playback began.

• ID 402331 - CameraShake: The Viewer controls remained after deleting the node.

• ID 403116 - Linux only: Opening large projects with multiple Read nodes was slow compared to legacy versions of Nuke Studio.

• ID 403141 - Monitor Output: Colorspace in A/B mode did not match the Viewer.

• ID 403962 - Monitor Output: Setting the monitor to A/B mode after changing the Nuke Viewer process did not match the Viewer output.

• ID 406897 - Node Graph: The bottom-right zoom window did not always display all nodes in the node tree.

• ID 407125 - macOS only: Double-clicking on the Viewer annotation color palette caused the application to lose focus.

• ID 407173/408220 - Linux only: The numpad Num Lock function was always disabled.

• ID 407751 - OCIO: Setting the Project Settings > color management dropdown to Nuke and the OCIO config dropdown to anything other than nuke-default displayed an error in OCIOFileTransform nodes.

• ID 408019 - Navigating to Help > Documentation > Foundry Online Help directed you to the wrong page.

• ID 408135 - Monitor Output: Switching device using a Kona 4 card in Nuke Studio and Nuke did not initially display output correctly.

• ID 409069 - Deep: Using DeepRecolor with target input alpha enabled on all channels removed deep samples incorrectly.

• ID 409887 - Monitor Output: Enabling monitor output from a Viewer in a stereo mode, such as Flicker, occasionally caused Nuke Studio to crash.

• ID 409907 - macOS only: Enabling monitor output from AJA cards occasionally displayed images in the wrong quadrants of the monitor.

• ID 409992/410655 - Soft Effects: Cloning a Transform effect and then moving a position in the originating shot reset the effect in the clone.

• ID 410209/410259/410659 - Soft Effects: Moving, deleting, or copy/pasting shots on the timeline did not always update keyframes in the Curve Editor correctly.

• ID 410662 - Node weighting and favorites took priority over exactly matching a sub-string in the Node Graph's Tab menu.

• ID 411676 - Monitor Output: The None and sRGB colorspaces were identical.

• ID 411809 - Monitor Output: Enabling floating monitor output with a mask applied in the Viewer caused Nuke to crash.

• ID 412035 - Monitor Output: Headsets did not work as expected with high resolution monitors.

• ID 413480 - Toolsets: Checking Enable Tail in the P_Sparks toolset's Properties panel did not work as expected.

# New Known Issues Specific to Nuke 12.0

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

Note: NVIDIA GPUs with compute capability of 3.0 (Kepler) cannot process .r3d files due to a known issue in the R3D SDK preventing decoding and debayering. Nuke defaults to CPU processing when reading .r3d files with these cards installed. A list of the compute capabilities of NVIDIA GPUs is available at: www.nvidia.co.uk/object/cuda_gpus_uk.html

• ID 414089 - DeepMerge: Deep samples that intersect and have an alpha equal to 1 produce artifacts in the Viewer.
As a workaround, enable drop hidden samples to remove the artifacts.

• ID 414087 - Deep: Connecting a DeepExpression node to a DeepMerge node occasionally causes Nuke to crash.

• ID 413971 - Node Graph: The bottom-right zoom window displays outside its bounds when errors are displayed on certain nodes.

• ID 411719 - macOS only: Changing %04d notation to an invalid file path causes Nuke to crash.

• ID 410829 - Linux only: Creating nodes Pythonically from the OS command line causes the Python interpreter to crash.

• ID 410552 - Soft Effects: Editing an effect on a shot with the same shot open on second sequence does not update the Viewer correctly.
As a workaround, mouse over the Viewer to force the update.

• ID 410531 - macOS only: Changing knob values on a cloned soft effect causes the Viewer to behave erratically.

• ID 410240 - macOS only: Scrubbing the timeline with the Curve Editor docked below the sequence does not update the playhead correctly.

• ID 410015 - Windows only: Monitor output from AJA Kona 4 cards using HDMI is split incorrectly in to four images on the monitor.

• ID 409910 - macOS only: Monitor output playback is not smooth towards the end of certain clips using AJA cards.

• ID 409909 - macOS only: Switching between monitor output devices in Nuke Studio occasionally causes the device selection dropdown to disappear.

• ID 404189 - Bin View: Disparity channels are not displayed consistently in clip thumbnails.

• ID 403804 - Linux only: Switching resolution on the HTC Vive HMD occasionally displays black output in the headset. As a workaround, update the Viewer by changing frame or press F5 to refresh the headset output.

• ID 403337 - High DPI: Changing the primary monitor causes the UI to update incorrectly.

• ID 403210 - High DPI: Swapping between fullscreen and regular workspaces does not retain the UI scale.

• ID 402330 - High DPI: The Denoise Viewer analysis message is truncated.

• ID 401946 - High DPI: F_WireRemoval on-screen controls are draw incorrectly.

• ID 401168 - High DPI: The DeepCrop Viewer widget is thinner than in older versions of Nuke.

• ID 400816 - High DPI: Moving cuts on the timeline does not scale or position the Viewer frame preview correctly.

• ID 400543 - High DPI: The Wipe controls in Nuke Studio are smaller and thinner than in older versions of Nuke.

• ID 400508 - High DPI: The Wipe bounding box outline thinner and smaller than in older versions of Nuke.

• ID 400506 - High DPI: F_Align's bounding box outline is thinner and smaller than in older versions of Nuke.

• ID 400476 - High DPI: C_Tracker's points are thinner than in older versions of Nuke.

• ID 400465 - High DPI: C_CameraSolver's outline and points are thinner than in older versions of Nuke.

• ID 400445 - High DPI: F_WireRemoval's controls are smaller and the icon is different to older versions of Nuke.

• ID 400389 - High DPI: The F_Steadiness node controls are thinner than in older versions of Nuke.

• ID 400387 - High DPI: F_RigRemoval's controls are smaller and the default removal area is more square than in older versions of Nuke.

• ID 400268 - High DPI: F_Align's controls and outlines are smaller and thinner than in older versions of Nuke.

• ID 400232 - High DPI: CameraTracker's thumbnails bar is not scaled to fit the width of Viewer.

• ID 400101 - High DPI: The Sparkles node bounding box outline is thinner and smaller than in older versions of Nuke.

• ID 399232 - Python: Declaring TimeBase(None) causes Nuke to crash.

• ID 399228 - High DPI: Moving Nuke between monitors with different scaling ratios causes GLWidgets to draw incorrectly.

• ID 398978 - GridWarpTracker: Selecting grids Pythonically does not update the node Properties correctly.

• ID 398880 - High DPI: Changing the scaling of 4K monitors while in fullscreen mode doesn't close the fullscreen window when exiting, causing Nuke Studio to become unresponsive.

• ID 398862 - High DPI: Changing the scaling on a monitor causes the controls to disappear.

• ID 397516 - DNxHR: Certain .mov file transfer_function metadata in Nuke does not match when compared to nclc atom.

• ID 394720 - macOS only: Exiting Fullscreen mode causes the Viewer to lose focus.

• ID 394019 - macOS only: Enabling Fullscreen mode changes the depth of floating windows, resulting in some windows being obscured.

• ID 393373 - GridWarpTracker: Dragging multiple grid vertices and holding Shift does not snap points to the grid.

• ID 393052 - macOS only: Tooltips occasionally don't display correctly.

• ID 392223 - macOS only: The installer window is slightly blurred.
As a workaround, resize the window to improve the resolution.

• ID 392143 - GridWarpTracker: Moving keyframes created by autokey in the Curve Editor or Dope Sheet adds another keyframe at the current frame.

• ID 392127 - GridWarpTracker: The magnifying window displayed over grid vertices during mouse-over changes position if you press Ctrl/Cmd.

• ID 390551 - GridWarpTracker: Enabling Invert stops the preview working as expected.

• ID 389356 - GridWarpTracker: Attempting to use GridWarpTracker in vanilla Nuke only displays a license error once.

• ID 388836 - GridWarpTracker: Toggling grid visibility does not affect the transform widget.

• ID 388455 - High DPI: Hovering down a menu list leaves orange highlight outlines around items.

• ID 386719 - Windows only: AJA Kona 4 12-bit dual link 1080p50a, 1080p59.94a, and 1080p60a output is incorrect.

• ID 386517 - Timeline Playback: Clicking the skip to start button and clearing the playback cache simultaneously causes Nuke Studio to crash.

• ID 383542 - GridWarpTracker: Adding a NoOp downstream of a GridWarpTracker with linked knobs occasionally causes Nuke to crash.

# Developer Notes

Here are the changes relevant to developers. See Help > Documentation from the Nuke menu bar or https://learn.foundry.com/nuke/developers/120/ndkdevguide/appendixc/index.html for more information.

As Nuke develops, we sometimes have to make changes to the application programming interface (API) and application binary interface (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 | 11.2v1 to 11.2v2 | API and ABI |  |
Point | 11.1v1 to 11.2v1 | API |  |
Major | 11.0v1 to 12.0v1 | - |  |

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 9 and Nuke 10, the CameraShake node Class() changed from CameraShake2 to CameraShake3. In the toolbars.py file for the two releases, the entries for the CameraShake node appear as follows:
m.addCommand("CameraShake", "nuke.createNode(\"CameraShake2\")", icon="CameraShake.png")
m.addCommand("CameraShake", "nuke.createNode(\"CameraShake3\")", icon="CameraShake.png")

## New Features

There are no new features in this release.

## Feature Enhancements

There are no feature enhancements in this release.

## Bug Fixes

• ID 384664 - Python: Forcing the TimeOffset node's Properties panel to close automatically using the hideControlPanel() function caused Nuke to crash.

• ID 414020 - NDK Documentation: The exrReader.cpp example displayed an error during compilation.