Smart User Render Cache not working

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Michael McCaffrey

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Smart User Render Cache not working

PostTue Apr 17, 2018 6:20 pm

On one of my projects I noticed the Smart render cache is not working. Ive been over the settings several times. "Smart" is checked under "render cache" and in the preference I have it set to automatically start rendering after 3 seconds. Despite all this, it will not begin to render. Any ideas why?
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David Franzo

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Re: Smart User Render Cache not working

PostTue Apr 17, 2018 8:56 pm

Resolve might think your system can handle realtime playback and thus won't find anything worth caching. I usually just use User Caching cause I don't want it caching things unnecessarily. Our system can handle realtime 5 frame temporal noise reduction yet it always wants to cache it in auto mode. If your same system cached the files on v14 then it might be a beta issue.
I would firstly make sure your clips are getting the red uncached indicator. If not, then it's not marked for caching anyways. If so, then make sure your cache destination is writable.
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Edrick Smith

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Re: Smart User Render Cache not working

PostTue Apr 17, 2018 9:04 pm

Edit: Wrong topic, accidentally posted my reply into this thread. I'm also having Smart User Render Cache issues.

viewtopic.php?f=32&t=72583
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Trevor Asquerthian

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Re: Smart User Render Cache not working

PostTue Apr 17, 2018 9:09 pm

I Kai couldn’t get caching (smart or user) working when I tried.
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Michael McCaffrey

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Re: Smart User Render Cache not working

PostTue Apr 17, 2018 11:21 pm

David Franzo wrote:Resolve might think your system can handle realtime playback and thus won't find anything worth caching. I usually just use User Caching cause I don't want it caching things unnecessarily. Our system can handle realtime 5 frame temporal noise reduction yet it always wants to cache it in auto mode. If your same system cached the files on v14 then it might be a beta issue.
I would firstly make sure your clips are getting the red uncached indicator. If not, then it's not marked for caching anyways. If so, then make sure your cache destination is writable.


Yes it was working in v14, and even in other projects in v15. Actually it used to be working in this project too. Destination is writable. There are no indicators (red lines or blue lines etc). So its like the Smart Render isnt even activating.
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Michael McCaffrey

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Re: Smart User Render Cache not working

PostWed May 02, 2018 5:56 pm

Anyone been able to get this working yet? I still have had no success. Destination is writable. Tried two different destinations and neither worked. Not sure what else to try?
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Editwithmouse

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Re: Smart User Render Cache not working

PostThu May 03, 2018 12:45 am

sadly I'm having trouble as well, my playback just stutters if I enlarge or anything or cut anything and the little red line seems to need to re-render every time I move something.
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David Cherniack

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Re: Smart User Render Cache not working

PostThu May 03, 2018 2:52 pm

My strongly held opinion is that the development team has tospend some serious effort in fixing the Render caching. With complex compound clips it doesn't work at all. It's a serious impediment to editing. A force cache render in to out would do it.
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Blake LaFarm

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Re: Smart User Render Cache not working

PostThu May 03, 2018 5:43 pm

David Cherniack wrote:My strongly held opinion is that the development team has tospend some serious effort in fixing the Render caching. With complex compound clips it doesn't work at all. It's a serious impediment to editing. A force cache render in to out would do it.
I agree.
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Michael McCaffrey

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Re: Smart User Render Cache not working

PostThu May 03, 2018 6:42 pm

Editwithmouse wrote:sadly I'm having trouble as well, my playback just stutters if I enlarge or anything or cut anything and the little red line seems to need to re-render every time I move something.


I cant even get that far. I dont even get the red line. Its like the whole render cache just wont activate.

You might try going into your settings and setting the "enable background caching after X seconds" to 5 seconds or 10 seconds.
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MSPhotography

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Re: Smart User Render Cache not working

PostThu May 03, 2018 9:34 pm

I can use the render cache, however, it is creating a really strange effect on my footage where it makes the images look super overexposed? Images below. Also, where are the source and regular output cache settings? Have they been replaced with just colour and fusion?

Beta version 2
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Michael McCaffrey

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Re: Smart User Render Cache not working

PostTue May 15, 2018 3:50 pm

BMD, is this going to be fixed in 15b3? I am still having problems with this and have submitted logs and reports and details and .DRP projects weeks ago but still have broken projects and no answers. What is happening with this? Is it being dealt with?
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Nathan Morgan

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Re: Smart User Render Cache not working

PostTue May 15, 2018 5:33 pm

Michael,

This is working as anticipated for me in 14.3 and in 15b2 (with the exception below)

Is there any chance that you have collaboration enabled? There is a bug where if you are in a collaborative project the smart cache doesn't work. If you disable collaboration the smart cache works again.

Hope this is helpful.
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Paul Draper

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Re: Smart User Render Cache not working

PostTue May 15, 2018 9:09 pm

Nathan Morgan wrote:Michael,

This is working as anticipated for me in 14.3 and in 15b2 (with the exception below)

Is there any chance that you have collaboration enabled? There is a bug where if you are in a collaborative project the smart cache doesn't work. If you disable collaboration the smart cache works again.

Hope this is helpful.

Confirmed, seems to be working OK for me here as well & cannot replicate the issues mentioned above. I don't use collaborate.
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Michael McCaffrey

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Re: Smart User Render Cache not working

PostTue May 15, 2018 11:11 pm

Nathan Morgan wrote:Michael,

This is working as anticipated for me in 14.3 and in 15b2 (with the exception below)

Is there any chance that you have collaboration enabled? There is a bug where if you are in a collaborative project the smart cache doesn't work. If you disable collaboration the smart cache works again.

Hope this is helpful.


I will give it a try. I do have collaboration mode enabled where I work. However, I did not have collaboration mode enabled on a project at home on my MBP that was exhibiting the same problem. Only after sending the .DRP to BMD and getting it back "repaired" did it work again. So I will turn off collaboration mode and see if that helps.
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Gary Wedekind

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Re: Smart User Render Cache not working

PostThu May 17, 2018 9:25 am

I have been getting the same behaviour as 'msphotography' lower down in this post with highlights on some clips being blow out of gamut and then being unrecoverable. It seems the problem is with the Smart Cache option. I could solve it by turning off the 'Smart' option and deleting 'All cache files' so forcing it to re-render under the 'User' option. The only render codec that did not cause this blown highlights behaviour under Smart option was the DNxHR 444 - HDR, which is clearly overkill. For me Smart Render Cache remains unusable and I'm sticking with 'User' mode until this is fixed.

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Nathan Morgan

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Re: Smart User Render Cache not working

PostThu May 17, 2018 2:13 pm

Gary Wedekind wrote:I have been getting the same behaviour as 'msphotography' lower down in this post with highlights on some clips being blow out of gamut and then being unrecoverable. It seems the problem is with the Smart Cache option. I could solve it by turning off the 'Smart' option and deleting 'All cache files' so forcing it to re-render under the 'User' option. The only render codec that did not cause this blown highlights behaviour under Smart option was the DNxHR 444 - HDR, which is clearly overkill. For me Smart Render Cache remains unusable and I'm sticking with 'User' mode until this is fixed.

V15 B3.
Gary,

What color space are you working in? And what codecs didn't work?

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Michael McCaffrey

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Re: Smart User Render Cache not working

PostThu May 17, 2018 3:24 pm

Paul Draper wrote:
Nathan Morgan wrote:Michael,

This is working as anticipated for me in 14.3 and in 15b2 (with the exception below)

Is there any chance that you have collaboration enabled? There is a bug where if you are in a collaborative project the smart cache doesn't work. If you disable collaboration the smart cache works again.

Hope this is helpful.

Confirmed, seems to be working OK for me here as well & cannot replicate the issues mentioned above. I don't use collaborate.


I can confirm that after disabling Collaboration mode the Render Cache began working again. It also resolved another issue I had regarding the delayed render. From the deliver page, after submitting a job and clicking "RENDER" it would take resolve between 20 seconds to 3-4 minutes before it started to render the job. After disabling collaboration mode, now clips begin to render immediately.
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Gary Wedekind

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Re: Smart User Render Cache not working

PostThu May 17, 2018 8:08 pm

Hi Nathan,

Clips on this are H264 off GH5s - 4.2.0 8bit. When the 'Smart' cache option is selected, only the DNxHR 444 – HDR codec holds up (I only use the DNxHR ones, so cant vouch for others listed. When 'User' option or indeed 'None' is selected there is no problem with any of the DNxHR variants).

I submitted a clip to the tech guys at BMD, who came back and have replicated the behaviour, so it has gone to developer side as a bug.

Hope that helps.

G
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Joe Bender

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Re: Smart User Render Cache not working

PostSun Aug 05, 2018 9:58 pm

Hi All, I can confirm that this behavior persists in 15b7, enabling Collaboration disables Smart caching.
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mobilemassey

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Re: Smart User Render Cache not working

PostWed Aug 22, 2018 2:24 pm

Joe Bender wrote:Hi All, I can confirm that this behavior persists in 15b7, enabling Collaboration disables Smart caching.

Unfortunately I can confirm that this behavior persists in the Official Release of DaVinci Resolve 15.

miHah1

Re: Smart User Render Cache not working

PostSat Sep 29, 2018 12:41 pm

Try enabling caching colors; right click on clips on timeline: Render cache color output.
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Re: Smart User Render Cache not working

PostMon Oct 01, 2018 11:26 pm

Michael McCaffrey wrote:
Editwithmouse wrote:sadly I'm having trouble as well, my playback just stutters if I enlarge or anything or cut anything and the little red line seems to need to re-render every time I move something.


I cant even get that far. I dont even get the red line. Its like the whole render cache just wont activate.

You might try going into your settings and setting the "enable background caching after X seconds" to 5 seconds or 10 seconds.


You're on a window switch to dnx the cache, window does not do prores write.....
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Paul Willis

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Re: Smart User Render Cache not working

PostMon Nov 19, 2018 2:45 pm

Has anyone else had any luck with this? Just updated our systems to 15.2 and this behaviour still persists. We are unable to use cache when Collaboration Mode is enabled, no coloured line appears at all. Normal behaviour resumes as soon as Collaborate is disabled.



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Nathan Morgan

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Re: Smart User Render Cache not working

PostMon Nov 19, 2018 2:52 pm

Cache is not supported in collaboration mode. I have seen posts from the developers saying it is being worked on but as of the current release it does not work.

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bruce alan greene

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Re: Smart User Render Cache not working

PostTue Nov 20, 2018 12:32 am

I'm using resolve 15.1 on Windows and noticed strange behavior with smart cache. I turned it off and deleted the cache and grading is back to normal.

What was happening, is that I tried to change a node in a cached clip and it would not release the cache completely and re-cache the new grade. Actually, while changing the grade, all looked correct, but upon playback, the grade was screwed up.

I never noticed this in v12...
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AndrewS

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Re: Smart User Render Cache not working

PostFri May 10, 2019 2:27 pm

I have the same problem, some clips just locking up the caching and not allowing to move forward. I have to manually move timeline head.
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