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RED and display bug, lines and colour artefacts

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Robin Erard
RED and display bug, lines and colour artefacts
on Mar 13, 2014 at 5:12:22 pm

Hello,

I'm grading a feature shot on REDone 4K.
I'm grading into Davinci 10.1.2, in half resolution.

Sometimes lines and colour artefacts appears on the image, not only on scope or via UltraStudio 4K, but also on the GUI of Davinci, il looks like de debayering problem (I haven't Red Rocket). The only solution to solve the problem is to restart the computer... I haven't tested yet, but I think it could appear in the render also.

Any idea ?

Robin

réalisateur, scénariste, monteur, étalonneur
http://www.robinerard.ch


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Mayo Hurajt
Re: RED and display bug, lines and colour artefacts
on Mar 13, 2014 at 8:25:54 pm

Maybe not enough gpu memory. What is your hw config and sequence settings? how many nodes?


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Robin Erard
Re: RED and display bug, lines and colour artefacts
on Mar 14, 2014 at 8:09:59 pm

Hello,

You think so? My config is :
New MacPro
12-core
64 Ram
2x D700
Sonnet Echo Epxress III with Esata card, FirewireCard, SAS card.

Robin

réalisateur, scénariste, monteur, étalonneur
http://www.robinerard.ch


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Robin Erard
Re: RED and display bug, lines and colour artefacts
on Mar 15, 2014 at 8:00:32 am

This is the problem in image :





réalisateur, scénariste, monteur, étalonneur
http://www.robinerard.ch


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Nook Kim
Re: RED and display bug, lines and colour artefacts
on Mar 18, 2014 at 4:02:15 am

I get much worse image than these. Usually though, simple restart of Resolve solves, but still embarrassing in front of clients.

My System:
Mac Pro 12 Core 3.46GHz
32GB
ATI 5770
3xQ4000
Red Rocket
24TB FC RAID


Nook Kim
http://www.digitalfactory.kr


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Robin Erard
Re: ED and display bug, lines and colour artefacts
on Mar 18, 2014 at 6:57:59 pm

Hello,

The problem is that it appears also in renders... Only solution I found is to stay in front of the computer during rendering and relaunch davinci when this kind of bug appears...

Robin

réalisateur, scénariste, monteur, étalonneur
http://www.robinerard.ch


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Nook Kim
Re: ED and display bug, lines and colour artefacts
on Mar 19, 2014 at 12:37:34 pm

This may interest you.. Robin.

I was rendering a job yesterday, but the last clip of a project would not render at all with "your GPU memory is full. try reducing nodes.." message. This didn't make sense at all since the clip had much less correction than other clips in the job. After failing to render the clip with lots of different approaches, I tried to click off "force full debayer.." option on Deliver page although I had "full debayer" option turned on on the camera raw tab of the config page. To my surprise, it just rendered.

I'm not sure what caused this, but it's worth a try if you are in a trouble.

Hope this helps someday.

Cheers.

Nook Kim
http://www.digitalfactory.kr


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Robin Erard
Re: ED and display bug, lines and colour artefacts
on Mar 20, 2014 at 8:56:17 am

Hello,

Thank's for your feedback. On my side I always rendered with "force full debayer", the problem seems then to come from somewhere else. But yesterday I downloaded the last version 10.1.3 and I will re-render the feature today to test if the render problem is still there.

Best

Robin

réalisateur, scénariste, monteur, étalonneur
http://www.robinerard.ch


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Robin Erard
Re: ED and display bug, lines and colour artefacts
on Mar 20, 2014 at 4:48:18 pm

Hello,

The problem isn't solved... even with new version of Davinci 10.1.3

Robin

réalisateur, scénariste, monteur, étalonneur
http://www.robinerard.ch


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