Blender 2.8 Crash - Translating Key Frames in Action Editor and Dope Sheet #57561
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Reference: blender/blender#57561
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System Information
OS: Windows 10 Professional
CPU: Intel 4770k
GPU: AMD RX480 8GB
Blender Version
Blender 2.80 Commit Date: 20181031
Description
When translating key frames in the Dope Sheet or in the Action Editor, it causes an immediate crash.
This issue is not present in the F-Curve Editor when moving the key frames. It serves as a work around.
Reproduction Steps:
//The following assumes that 'Auto Key Framing' is disabled and a simple object is being manipulated.
It is also possible to replicate this with Armature Key Frames and Key Frames for Light Colors. If it can have a Key Frame, it applies '//
Repeat the previous 2 steps, however this time change the 'View Context' to Action Editor. The results should be the same.
Added subscriber: @Boomer059
Added subscriber: @lichtwerk
Cant get it to crash in this simple scenario, but I'm pretty sure this is the same as #57530.
@Boomer059 : can you confirm this doesnt happen when you start blender from the commandline with the
--threads 1
option?Marking as incomplete until we have an answer...
I created a shortcut to the exe, added -t 1 and now I can translate keyframes. After googling --threads 1 and -t 1 from the other task you posted, I couldn't find any documentation on what it does and why it solves the issue. For the sake of anyone who might experience this, and in the interest of a third task not being made, why does this solve the problem?
With
--threads
you can control how many tasks run in parallel in various areas of blender.One of these areas is dependency graph evaluation (animationsystem, etc).
And while of course running more tasks in parallel usually is faster, it can also lead to bugs because different threads might read/write to the same data in an unexpected manner.
I'll merge this report into #57530, further discussion can take place there then.
Closed as duplicate of #57530