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Fusion 9 is quite "crashy"

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RCModelReviews

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Fusion 9 is quite "crashy"

PostSat Aug 18, 2018 5:01 am

In four months of heavy use I've only had one crash with Resolve but when I'm doing stuff like camera tracking, Fusion crashes quite frequently -- usually just disappearing from the screen and requiring a restart.

I'm used to saving my work regularly so I don't usually lose more than a minute or two of work but I am surprised at the difference in reliability between Resolve and Fusion -- given they come from the same company (now anyway).

My system is well spec'd for Fusion (6-cores, 4.4GHz, 16GB RAM and a GTX1060/6 GPU) and I have no other reliability issues so I guess it's just Fusion itself.
Still using Resolve 14 until 15 is sorted, Fusion 9 Studio
CPU: i7 8700, OS: Windows 10 (1709), GPU: GTX1060/6
I'm refugee from Sony Vegas slicing video for my YouTube channels.
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Sander de Regt

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Re: Fusion 9 is quite "crashy"

PostSat Aug 18, 2018 7:53 am

9 times out of 10 it has to do with your Open CL settings in Fusion. Even with a quick GPU using it, it doesn't make a huge time difference in day to day operations, but it does seem to affect stability of - amongst other things - the tracker. Turning Open CL off has greatly reduced the number of crashes on my system.
Sander de Regt

ShadowMaker SdR
The Netherlands
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Chad Capeland

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Re: Fusion 9 is quite "crashy"

PostSat Aug 18, 2018 1:56 pm

You mentioned running Resolve... at least using Windows 10 and Nvidia graphics you can't run Resolve and Fusion at the same time. Resolve will cause Fusion to crash. In addition to the changes Sander mentioned, try running Fusion without running Resolve.
Chad Capeland
Indicated, LLC
www.floweffects.com
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Bryan Ray

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Re: Fusion 9 is quite "crashy"

PostSat Aug 18, 2018 3:34 pm

Also, I have heard reports that Fusion gets more unstable if your processor is overclocked.

Personally, as of 9.0.2, I find Fusion 9 to be about as stable as 7 was. I still see occasional crash conditions, but they're not common for me. Maybe twice a day at most if I'm not scripting—Houdini crashes on me more frequently than that. There's another artist in our facility with hardware identical to mine, though, that gets frequent crashes using the BSpline tool, which I never see. He does use a lot of anchors on his splines, though, so maybe that has something to do with it. In any case, there's not something inherent in Fusion 9 that makes it unstable; I suspect that it's just not well-tested on enough different hardware configurations.
Bryan Ray
http://www.bryanray.name
http://www.musevfx.com
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Chad Capeland

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Re: Fusion 9 is quite "crashy"

PostSat Aug 18, 2018 5:27 pm

Good point. There might be specific patterns that only Fusion creates often enough to expose a hardware problem. Like Fusion does memory allocation and read/writes in a way that other applications don't. If you have a hardware issue with your memory controller or RAM, you might issues with Fusion, but rarely with anything else.

Unfortunately, this is really hard to test. Production comps don't help, you need specific repo cases and if it's specific to your machine and unpredictable (because it's affected by heat or whatever), then even moreso.

Reminds me of an old bug in Fusion's skin where the "green channel" button graphic in the viewer was black, not green. I reported this and out of dozens of people who checked, including three developers, all saw a green button. Turns out the skin had bitmaps for red, green, blue, and RGB, and all but the green had alpha of 1.0, while the green bitmap had alpha of 0.0. If I changed the alpha in the bitmap, everything was fine. but... I was the only one who could see this bug. No one else ever saw it. The bitmap was clearly wrong, and the premultiplication was causing an expected result, but only on my system.
Chad Capeland
Indicated, LLC
www.floweffects.com
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RCModelReviews

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Re: Fusion 9 is quite "crashy"

PostSat Aug 18, 2018 8:42 pm

This system is uber-stable with other applications and the crashes generally *only* happen when doing camera-tracking. Even then, it's not during the track or solve operations, it's almost always when moving stuff around in the perspective view -- at which time neither the CPU or GPU are under much load at all.

Also, I don't run Resolve and Fusion at the same time so that's unlikely to be a factor.

Given that 90% of my use for Fusion is in camera tracking, perhaps it's just that I use this feature more than most folk and therefore, if there are a few uncaught bugs, I'm far more likely to find them.
Still using Resolve 14 until 15 is sorted, Fusion 9 Studio
CPU: i7 8700, OS: Windows 10 (1709), GPU: GTX1060/6
I'm refugee from Sony Vegas slicing video for my YouTube channels.
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Bryan Ray

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Re: Fusion 9 is quite "crashy"

PostSun Aug 19, 2018 2:52 am

That's very likely. I have access to PFTrack, so I very rarely use CameraTracker. Have you contacted support directly about it? The forum is mostly user-to-user assistance, and I don't think there are ever any tickets created based on problems reported here.
Bryan Ray
http://www.bryanray.name
http://www.musevfx.com

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