To open multiple instances of Blender on a Mac, I'm opening blender.app (2.75a and 2.75) through the console. That makes Blender's interface load with most of the text gone: loadBug

Vs. the normal way of opening Blender with Finder: Normal startup

I tried:

open -n .../blender.app
open -n .../blender.app/contents/MacOS/blender

I also tried only ./ and tried to open the app manually inside the package contents, all with the same result. I also tried with 2.74, and the same happens. Oddly enough I am looking at a tutorial in which the guy has 2 instances opened on a Mac without much problem.

So, what's going on? If I have to make 2 instances of blender.app, it's ok, but how can I get the console window method to work?


I had two versions of python installed; I solved this by uninstalling the 2.7 version by typing:

sudo rm -rf /Library/Frameworks/Python.framework/Versions/2.7

and then:

sudo rm -rf "/Applications/Python 2.7"

That leaves me with 3.4, and everything works fine.


I just downloaded Blender 2.75a on my mac with OSX 10.10.3 (Yosemite). Placed on my desktop, I open the terminal and executed this line:


Blender loaded properly with all menus intact. No "open" command is required. I can do multiple instances this way.

  • $\begingroup$ Ill try that way, wait a sec $\endgroup$ – Kaahrl Jul 31 '15 at 15:31
  • $\begingroup$ after typing : /Users/(-U-N-)/Desktop/blender.app/Contents/MacOS/blender; blender opens, but still I will get the very same issue that the screenshot shows, also I noticed this message in the console: .../Desktop/blender.app/Contents/MacOS/blender ndof: 3Dx driver not found Read new prefs: /Users/Kaahrl/Library/Application Support/Blender/2.75/config/userpref.blend 2015-07-31 17:35:10.164 blender[31188:7772658] 17:35:10.164 WARNING: blablabla $\endgroup$ – Kaahrl Jul 31 '15 at 15:39
  • $\begingroup$ as a matter of fact I 99% sure that is something about my mac configuration since I saw this work to everybody.... $\endgroup$ – Kaahrl Jul 31 '15 at 15:41
  • $\begingroup$ and yeah Yosemite here too... maybe something about permissions/ priviledges etc...? is like if it couldn't read part of the program $\endgroup$ – Kaahrl Jul 31 '15 at 15:42
  • $\begingroup$ oh, I think myght be something about my python config since at the end of the console you can read: uiItemStringO: 'WM_OT_url_open' unknown operator python line lookup failed, interpreter inactive search for unknown menutype USERPREF_MT_splash_footer $\endgroup$ – Kaahrl Jul 31 '15 at 15:55

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