Is this the same as disabling the HQDisplay options in the Preferences, or
should I run this script
every time I start SI? It seems to help a lot. Thanks.
On Wed, Apr 16, 2014 at 1:04 PM, Steven Caron <car...@gmail.com> wrote:
> this certainly constitutes as something the dev team should try and
> address before the next two years.
>
>
> On Tue, Apr 15, 2014 at 7:36 PM, Andy Jones <andy.jo...@gmail.com> wrote:
>
>> *FOR IMMEDIATE RELEASE*
>> *April 15, 2014*
>>
>> *SOFTIMAGE QUALITYBLEED VULNERABILITY*
>> Discovered by Security Researchers Gibli, Barosin, Pancres, Friedman,
>> Akita, Jones, Panisset, Barbieri and Piparo
>>
>> Psyop experienced a "Eureka" moment today, when an artist discovered that
>> updating referenced models was nearly two orders of magnitude faster when
>> done through RDP (remote desktop protocol) rather than on a local
>> workstation.
>>
>> Simultaneously, a different artist in LA encountered issues with slowness
>> saving files in Softimage, and a quick test confirmed that saving the scene
>> via RDP was also two orders of magnitude faster. This led to a flurry of
>> troubleshooting, and we have since narrowed the problem down to Softimage's
>> "High Quality Viewport" "feature."
>>
>> The speed-ups after disabling HQV are nothing short of mind-blowing. For
>> example, unloading a referenced model took 250 seconds before the fix, and
>> only 3 seconds after the fix. Meanwhile, a scene that took 15 minutes to
>> save saved in only 30 seconds after the fix was deployed.
>>
>> One artist's wife was quoted as saying, "Thanks to the Qualitybleed bug
>> being fixed, my husband finally comes home from work on time! Now if I can
>> just get him to stop spending all his free time watching Houdini
>> tutorials..."
>>
>> Note that the "high quality viewport" preference that causes the problem
>> is *enabled by default*, Psyop doesn't generally use HQV in our scenes, *so
>> people are likely to be affected by this problem whether they are HQV users
>> or not*.
>>
>> To fix the problem, affected softimage users can run the following Python
>> command:
>> Application.SetValue("preferences.Display.high_quality_viewport", False,
>> "")
>>
>> There is still much research to be done to find out what kinds of
>> scenes/models are more susceptible to the problem, but we thought we'd
>> bring it up now in case it's costing others time. Given that the problem
>> was tied in with RDP, it's likely that video drivers could be playing a
>> role, but so far we weren't able to find any settings that would magically
>> eliminate the problem without just disabling HQV entirely.
>>
>> Psyop is on a mix of NVidia Quadros and we ran tests with a few different
>> drivers, including the recommended ones. We also saw the same problem
>> across two different workstation images, in both Softimage 2013 and
>> Softimage 2014, and on a remote worker's home workstation. So we have
>> reason to suspect it's not a highly specific aspect of our configuration
>> that was causing the problem. No testing has been done yet on Linux.
>>
>> We will be sure to keep this list updated as more information becomes
>> available. Share your stories in the comments below if you have been
>> affected by this ~100X slowdown in performance, or if you encounter a
>> workstation that is somehow unaffected.
>>
>
>
--
Best Regards,
* Stephen P. Davidson*
*(954) 552-7956* sdavid...@3danimationmagic.com
*Any sufficiently advanced technology is indistinguishable from magic*
- Arthur C. Clarke
<http://www.3danimationmagic.com>
