I imagine that this question has been asked, but I could not find the answer, so I'll ask it:

I just created an icosphere and tried to increase the number of subdivisions to 5. But, whoops, I entered 25! Now Blender is churning away on a difficult task that I would rather not be completed. Is there anyway to "Undo" a process while Blender is still "thinking about it"? Like a "Control-C" equivalent? Or, do I just need to kill the whole Blender application?

  • $\begingroup$ Some of the complex procedures like unwrap of super-high-poly can be interrupted by Ctrl+C if you open Blender from console or toggle its console window. However this doesn't work on your exact case; the problem is unresponsive interface during the operation. Afaik it wasn't changed yet. $\endgroup$
    – Mr Zak
    Commented Dec 7, 2016 at 16:45
  • $\begingroup$ Called learning the hard way... "don't do it again" lol. @MrZak have a feeling Ctrl-C only works as a keyboard interrupt (from console) on a script. $\endgroup$
    – batFINGER
    Commented Dec 8, 2016 at 12:18

1 Answer 1


ESC key might do it. When the task is going to take an age, you can go to Windows' Task Manager and stop the Blender program outright...(Ctrl+Alt+Del) It does mean you lose what you've been doing since the last save however.

  • $\begingroup$ Yeah, I have currently just been just force quitting Blender. Typically, I do something like this when I have not saved my work in a long time, so I was hoping there would be some smart way to avoid quitting Blender. $\endgroup$ Commented Dec 8, 2016 at 18:30
  • $\begingroup$ That's on my wish list also :) $\endgroup$
    – Edgel3D
    Commented Dec 8, 2016 at 22:07

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