SUMMARY
If you are running Nuke on OSX El Capitan (OSX 10.11) then there is a chance you may encounter some performance issues with NUKE's viewer.
This article covers how you can enable some experimental bug fixes in NUKE 10 to avoid these problems.
MORE INFORMATION
After OSX El Capitan was released we became aware of viewer performance issues when zooming or moving overlay elements (such as roto widgets or transform jacks). The engineers worked to fix these issues ahead of the NUKE 10 release but unfortunately the fixes were non-trivial and it wasn't possibly to safely fix these bugs without causing other issues in time for the NUKE 10 release.
Work is ongoing on these fixes but due to these open issues El Capitan is not a fully certified platform for NUKE. This remains a high priority for the Nuke team and we hope to be able to fix these issues in a future maintenance release. This article will be updated when we have more news to share.
It is currently possible to turn on the work in progress bug fixes for the El Capitan issues by setting a couple of environment variables for NUKE 10. Please note, these environment variables enables are experimental so please take caution if you need to use them in production.
The changes the engineers have made so far can be enabled by setting the following environment variable before running Nuke:
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