[Bf-committers] Running Blender from Command Line skips Auto Execution of Driver Scripts

Wed Jul 9 07:29:31 CEST 2014

What I did, after much research, is to find a workaround.
I would like to know if this is a bug in Blender or intended behaviour.
Or is using "-y" on the command line (or using "use_scripts_auto_execute")
the only solution?

Kind Regards,
Chris "*Chips*" Lee
Mobile: 0410155111

Infin8eye <http://infin8eye.carbonmade.com/>
Knight of the DLF
IGDA Sydney founding member

On 9 July 2014 15:24, Campbell Barton <ideasman42 at gmail.com> wrote:

> Not sure what the question is then? whats `preferred` is a bit vague,
> if you know the origin of files and trust them, you can change your
> preferences too.
>
> On Wed, Jul 9, 2014 at 3:22 PM, Chris Lee <infin8eye at gmail.com> wrote:
> > As I am not a programmer I do not know if adding "-y" to the command
> line,
> > or using "use_scripts_auto_execute" in the python script is the preferred
> > solution.
> > I did seem to get the result I need from using "-y".
> >
> > Kind Regards,
> > Chris "*Chips*" Lee
> > Mobile: 0410155111
> >
> > Infin8eye <http://infin8eye.carbonmade.com/>
> > Knight of the DLF
> > IGDA Sydney founding member
> >
> >
> > On 9 July 2014 15:19, Chris Lee <infin8eye at gmail.com> wrote:
> >
> >> Thank you for the advice, both on CLI and concrete info to be supplied
> for
> >> a help request. I am new here.
> >> Hi, by the way.
> >>
> >>    1. What I did on Monday does appear to be the solution I need.
> >>    2. What I supplied in my post was a breakdown of what I did.
> >>    3. What I am looking for input regarding the solution I found, in
> case
> >>    I have missed something.
> >>    4. Also, is it a bug? That the Auto Execute scripts are not running
> >>    from command line, when the option is selected and saved in the
> file, to
> >>    run Auto Execute scripts on start.
> >>
> >> For exact reference:
> >>
> >>    - I was running this command: "C:\Program Files\Blender
> >>    Foundation\Blender\blender.exe"  F:\mport\scanimport\avatar.blend -P
> >>    "F:\mport\scanimport\new avatar.py" "F:\mport\scanimport\\".  Adding
> '-y'
> >>    at the end solved the issue. I have yet to get confirmation from my
> >>    programmer that it runs well in his system for what he is trying to
> do, but
> >>    it worked on my machine. The script he is running will move control
> points
> >>    on a human avatar to match body scan data. What I set up in drivers
> will
> >>    adjust the head size and height based on the neck height.
> >>    - The output I was getting that was messed up by the drivers not auto
> >>    running it's script was to have the head scaled down:
> >>
> https://www.dropbox.com/s/mu7hex3r0rb2hkd/Screenshot%202014-07-09%2015.14.02.png
> >>    - The correct output, which I got from adding '-y' is:
> >>
> https://www.dropbox.com/s/mu7hex3r0rb2hkd/Screenshot%202014-07-09%2015.14.02.png
> >>
> >>
> >> Kind Regards,
> >> Chris "*Chips*" Lee
> >> Mobile: 0410155111
> >>
> >> Infin8eye <http://infin8eye.carbonmade.com/>
> >> Knight of the DLF
> >> IGDA Sydney founding member
> >>
> >>
> >> On 9 July 2014 14:43, Campbell Barton <ideasman42 at gmail.com> wrote:
> >>
> >>> When asking for help its good to give some concrete info.
> >>>
> >>> - the exact commands you tried.
> >>> - the output you got.
> >>> - the output you want/expected.
> >>>
> >>>
> >>> On Wed, Jul 9, 2014 at 2:06 PM, Chris Lee <infin8eye at gmail.com> wrote:
> >>> > I was advised I may be able to get a definitive answer here. I was
> >>> trying
> >>> > to solve this issue on Monday and I think I did. I would like input
> >>> about
> >>> > what I found and whether or not this is a bug in Blender or intended
> >>> > behaviour.
> >>> >
> >>> >
> >>>
> -----------------------------------------------------------------------------------
> >>> >
> >>> > Basically Blender normally allows you to have drivers that contain
> auto
> >>> run
> >>> > scripts, such as what I have done.
> >>> >
> >>> > Recently it was pointed out as a security vulnerability, that
> opening an
> >>> > untrusted file from the web, could run a hidden python script on the
> >>> user's
> >>> > machine without them knowing.
> >>> >
> >>>
> http://blender.45788.x6.nabble.com/Please-turn-off-Auto-Run-Python-Scripts-by-default-td108971.html
> >>> >
> >>> > So by default it is now disabled, but there is an option in the user
> >>> > preferences to enable it by default.
> >>> > Here, under Auto Execution:
> >>> >
> >>>
> https://www.dropbox.com/s/vtxkg5f48mmfy40/Screenshot%202014-07-09%2013.25.34.png
> >>> >
> >>> > It appears though that there is an oversight, and running a command
> line
> >>> > blender instance, will do so before the auto execute option is
> enabled.
> >>> > Which means the script my programmer wrote will open Blender and run
> >>> > through it's process, but the drivers will not work, that I had put
> in
> >>> > place to control an object related to another object, controlled by
> the
> >>> > script.
> >>> >
> >>> > So as mentioned here, you can force scripts to run using -y at the
> end
> >>> of
> >>> > the command prompt:
> >>> >
> >>>
> http://blender.stackexchange.com/questions/7673/auto-run-scripts-security-options
> >>> >
> >>> > I had also followed the link within Blender regarding Auto Execution.
> >>> > I followed the link to here:
> >>> >
> >>>
> http://www.blender.org/documentation/blender_python_api_2_70_release/bpy.types.UserPreferencesSystem.html#bpy.types.UserPreferencesSystem.use_scripts_auto_execute
> >>> >
> >>> > So I don't know if this may help within a command line run blender
> >>> python
> >>> > script if -y is not used:
> >>> > "use_scripts_auto_execute"
> >>> >
> >>> >
> >>>
> -----------------------------------------------------------------------------------
> >>> >
> >>> > On Monday absolutely nobody I talked to online could advise me (apart
> >>> from
> >>> > the kind chap who suggested I check the mailing list, and that it had
> >>> come
> >>> > up in another thread here). Partly because I am in Sydney Australia
> and
> >>> all
> >>> > of Europe would have been asleep, so irc was quiet. I am hoping that
> >>> > somebody here actually knows how this works.
> >>> >
> >>> > Please get back to me with your thoughts.
> >>> >
> >>> > Kind Regards,
> >>> > Chris "*Chips*" Lee
> >>> > Mobile: 0410155111
> >>> >
> >>> > Infin8eye <http://infin8eye.carbonmade.com/>
> >>> > Knight of the DLF
> >>> > IGDA Sydney founding member
> >>> > _______________________________________________
> >>> > Bf-committers mailing list
> >>> > Bf-committers at blender.org
> >>> > http://lists.blender.org/mailman/listinfo/bf-committers
> >>>
> >>>
> >>>
> >>> --
> >>> - Campbell
> >>> _______________________________________________
> >>> Bf-committers mailing list
> >>> Bf-committers at blender.org
> >>> http://lists.blender.org/mailman/listinfo/bf-committers
> >>>
> >>
> >>
> > _______________________________________________
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>
>
>
> --
> - Campbell
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