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Muting a node in Cycles erases automation data
Closed, DuplicatePublic


System Information
Observed on Mac OS X 10.6 and Mac OS X 10.8

Blender Version
Broken: (2.69 .0 r60991)
Worked: (never worked as far as I know)

Short description of error
Muting a node in Cycles destroys any automation on the node.

Exact steps for others to reproduce the error

  1. Create a material in Cycles, add some nodes
  2. Automate a parameter of a node
  3. Mute that node (M key while selected)
  4. Unmute it (M key again) and find your automation is lost

The .blend I'm attaching demonstrates it easily. It's all set up and ready to try.



Event Timeline

Seth L. (quantumanomaly) set Type to Bug.
Seth L. (quantumanomaly) created this task.
Seth L. (quantumanomaly) raised the priority of this task from to Needs Triage by Developer.

Update: I have found that the same bug occurs when using Blender Internal. It is not specific to Cycles.
This came as a bit of a surprise to me as Blender Internal is not new.
In any case, it appears not to be a problem with the render engine but rather the automation system or the node system.

Bastien Montagne (mont29) closed this task as a duplicate.Jan 19 2014, 3:10 PM

✘ Merged into T38221.