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# Release Notes for Nuke and Hiero 11.2v6

# Release Date

07 May 2019

# Qualified Operating Systems

• macOS Sierra (10.12) or macOS High Sierra (10.13)

• Windows 7 or Windows 10 (64-bit)

• CentOS 6 or CentOS 7 (64-bit)

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 2.0 (Fermi) or above. A list of the compute capabilities of NVIDIA GPUs is available at www.nvidia.co.uk/object/cuda_gpus_uk.html.

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 8.0 & 6.5 or above.

• On Windows and Linux, CUDA graphics drivers are bundled with the regular drivers for your NVIDIA GPU. Driver version r361 or above is required.

Go to http://www.nvidia.com/Download/Find.aspx?lang=en-us for more information.

• On Mac, the CUDA driver is separate from the NVIDIA graphics driver and must be installed, if you don't have it already. The minimum requirement is driver version r361 which can be downloaded from www.nvidia.com/drivers.

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

#### AMD

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

Windows GPU | Driver | Linux GPU | Driver
--- | --- | --- | ---
AMD FirePro W8100 | 17.Q2.1 | AMD FirePro W8100 | 17.Q2.1
AMD FirePro W9100 | 17.Q2.1 | AMD FirePro W9100 | 17.Q2.1
AMD Radeon R9 Fury X | 17.4.3 - 17.6.2 | AMD Radeon R9 Fury X | 17.10
AMD Radeon RX 480 | 17.Q2.1 | AMD Radeon RX 480 | 17.Q2.1
AMD Radeon Pro WX 7100 | 17.4.3 - 17.6.2 | AMD Radeon Pro WX 7100 | 17.10

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

• On Mac an AMD FirePro GPU on late 2013 Mac Pro 6,1, mid 2015 MacBook Pro 11,5, and late 2016 MacBook Pro 13,3, running OS X 10.9.3 'Mavericks', or later.

### Mac GPUs

Nuke supports GPU-enabled nodes on the late 2013 Mac Pro 6,1, mid 2015 MacBook Pro 11,5, and late 2016 MacBook Pro 13,3, (running OS X 10.9.3 'Mavericks', or later), including a new Enable multi-GPU support option. When enabled in the preferences, GPU processing is shared between the available GPUs for extra processing speed.

Note: To ensure you get the best performance from OpenCL GPUs, we recommend updating Mavericks to 10.9.5, or above for full functionality. However:

If you're running an earlier version of Mac OS X than 10.9.5 and processing images greater than 4 mega pixels resolution, VectorGenerator, Kronos, and MotionBlur do not support GPU acceleration.

If you're running an earlier version of Mac OS X than 10.9.4, Kronos and MotionBlur do not support GPU acceleration.

# New Features

There are no new features in this release.

# Feature Enhancements

### Deep

The DeepHoldout and DeepMerge nodes now include a compute occluded samples control. When enabled, the values of samples from main are affected by the occlusion values of the holdout samples in front of them. When disabled, holdout occlusion is ignored.

For example:

M = main sample

H = holdout sample

M0 remains unchanged since there are no holdout samples before it. M2 is affected by the combined H0, H1, and H2 holdout samples and M4 is affected by all holdout samples.

Additionally, the DeepMerge drop zero threshold control is now included in DeepHoldout, allowing you to filter out samples whose alpha value falls below this threshold, such as those caused by floating point inaccuracy.

# Bug Fixes

• ID 155998 - UI: Layouts spanning two monitors were not display correctly on reload.

• ID 182027 - Export: Manually typing values into float sliders inserted .0 into the value.

• ID 304664 - Timeline Disk Caching: The sequence Properties > Clip Reformat options did not work as expected when Timeline Disk Caching was enabled.

• ID 320261 - Linux only: GPU accelerated Convolve2 nodes in some customer scripts printed Error: filter input is missing rgba in the Viewer.

• ID 322910 - Deep: DeepMerge nodes set to holdout produced a less accurate result when compared to DeepHoldout nodes.

• ID 324076 - DeepHoldout: Alpha occlusions did not holdout correctly.

• ID 330903 - Deep: The DeepHoldout and DeepMerge in holdout mode produced difference results.

• ID 357615 - Linux only: Dragging and dropping URL-based data into the Node Graph caused a double callback of the function.

• ID 376388 - Soft Effects: Using certain expressions in a Text effect caused flickering in the Viewer.

• ID 376623 - Soft Effects: Setting a Timewarp effect to Predefined > Reverse in the Curve Editor's right-click menu displayed an error.

• ID 376892 - DeepMerge: Setting operation to holdout combined alpha values if the B input was semi-transparent and behind the A input.

• ID 390303 - Deep: The knob names and tooltips for the DeepHoldout and DeepMerge nodes were misleading.

# New Known Issues Specific to Nuke 11.2

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

• ID 370989 - Windows only: Adding soft effects or retimes to shots with certain aspect ratios causes renders to timeout.

• ID 356283 - ARRIRAW: The Read node's aspect ratio control displayes the ratio incorrectly.

• ID 355719 - ARRIRAW: Deprecated resolution modes are not labeled in Nuke.

• ID 347416 - Rendering a standard Write node that has deep data in its stream 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/112/ndkdevguide/appendixc/index.html for more information.

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 | 10.0v1 to 10.0v2 | API and ABI |  |
Point | 10.0v1 to 10.5v1 | API |  |
Major | 10.0v1 to 11.0v1 | - |  |

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 235679 - NDK Documentation: The documentation stated incorrectly that the GeoInfo::copy() function copies primitive data.

• ID 372904 - Qt: The QT_PLUGIN_PATH environment variable did not append custom libraries to Nuke's library list.

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