[Bf-committers] Trusted blend files and scripted drivers bug and annoyance

[Campbell Barton]

On Sun, Aug 11, 2013 at 3:35 AM, Ton Roosendaal <ton at blender.org> wrote:
> Hi,
>
> I understand the pain... apparently this header notice is not communicating, even when people already expressed disagreement and knew the feature was coming.
>
> However, you can set this all in user preferences to have things work forever as you want. It'swell documented in release logs:
> http://wiki.blender.org/index.php/Doc:2.6/Manual/Extensions/Python/Security
>
> One idea we missed to investigate was to make the default (for previous saved startups) to mimic the old behaviour, so existing users wouldn't notice the change. The new trusted source feature then would only get activated on new installs or new userprefs after upgrading Blender.

We didn't miss this, thats how it works currently and I suspect why we
didn't get much feedback initially when the change was made.

But as users do new installs without using their old userprefs, or
reset factory-defaults, they run into this problem.

> -Ton-
>
> --------------------------------------------------------
> Ton Roosendaal  -  ton at blender.org   -   www.blender.org
> Chairman Blender Foundation - Producer Blender Institute
> Entrepotdok 57A  -  1018AD Amsterdam  -  The Netherlands
>
>
>
> On 9 Aug, 2013, at 22:30, Jace Priester wrote:
>
>> I expressed a lot of disagreement with the "Trusted" feature when there was
>> talk about implementing it, and I'm here to voice a complaint again now
>> that it has become a problem.
>>
>> I have created an animation using a scripted expression driver and that
>> driver's value evaluates to zero. I did not notice the "Continue Untrusted"
>> button appear at the top right. I've spent hours trying to figure out why
>> scripted drivers don't work, only to save and reload and then be prompted
>> to "Reload Trusted". This has been a gigantic waste of my time and is
>> precisely the reason I did not want this "trusted" junk in the first place.
>>
>> I am aware of the command line options to disable it, but I never expected
>> to have to do that. I understand the "Reload Trusted" prompt when opening a
>> file. However, when I create a brand new driver and enter the expression
>> myself it should work immediately. In any case, it damn sure should not
>> show a value of zero without a notice right next to it that it skipped
>> evaluation entirely. As-is, this is very misleading and indicates that the
>> expression did in fact resolve to a value of zero.
>> --
>>
>>
>> --------------------------------------------------------------------------
>> Jace Priester
>> Threespace Imaging
>> jacepriester at threespaceimaging.com
>> 559-284-0904
>> --------------------------------------------------------------------------
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>> Bf-committers at blender.org
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>
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-- 
- Campbell