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Getting a simple crop render resolution exactly as cropped?

PostPosted: Thu May 06, 2021 8:12 pm
by Michael Ivarsson
Hi there,

Again as in a previous post recently...
I know, I am using an old free version of davinci resolve, we can discuss that later.
DaVinci resolve 14.0.0b.043

I´ve seen this issue when googling and searching the forums, and it ends up with tedious explanations that just seems so awkward.

Isn´t there a simple match method to finalize a render output to be exactly as you crop it with the crop marking tool?
Been testing by changing the output resolution and project settings, but that is so tedious and I just can´t match the frame from the crop tool.
I should be ..output, use cropping, no scaling..and whatever I crop it to, that´s the resolution it should be.

Just as an image cropping in photoshop or krita, once that is done, saving out the image will be whatever it was cropped to.

We don´t have to go deeper than that for what is normal or not, either it will work or it doesn´t, and I would have to manually transform the video to a pre-defined resolution.
I do not want any re-scaling or zooming, just a crop to that resolution that I set with the crop frame tool.

Cheers,
/Michael

Re: Getting a simple crop render resolution exactly as cropp

PostPosted: Fri May 07, 2021 9:45 am
by Charles Bennett
Have you tried a different scaling option in the Project Settings? In this example I have a custom resolution. With "Scale Full Frame With Crop" it scales properly.

Re: Getting a simple crop render resolution exactly as cropp

PostPosted: Fri May 07, 2021 12:41 pm
by Jim Simon
You might be better off using a tool like VirtualDUB for this task.

Re: Getting a simple crop render resolution exactly as cropp

PostPosted: Fri May 07, 2021 3:57 pm
by Michael Ivarsson
Jim Simon wrote:You might be better off using a tool like VirtualDUB for this task.

Perhaps, but it really should be in any video editing software by default..or my impressions of it just drops.

I really want to stay in the same edit software while doing other things, not jump to additional software, though it may solve that issue..for free.

Re: Getting a simple crop render resolution exactly as cropp

PostPosted: Fri May 07, 2021 3:58 pm
by Michael Ivarsson
Charles Bennett wrote:Have you tried a different scaling option in the Project Settings? In this example I have a custom resolution. With "Scale Full Frame With Crop" it scales properly.



Yes, I tried that based on your previous post I think, but it´s not turning out the way it should be, cropping to that scale of the frame cropping tool.

Don´t think it´s possible, no one has ever youtube recorded it to work like the way I would want it to, and some other guy who asked about it some time ago, just a bunch of workarounds by the preference settings, which in any case doesn´t deliver the same output as to what the crop tool does in the preview window.

Thanks for jumping in and advicing.

Re: Getting a simple crop render resolution exactly as cropp

PostPosted: Fri May 07, 2021 9:09 pm
by Rick van den Berg
is the crop marking tool the one in the color page under output sizing, aka blanking? or do you mean the crop on an individual clip?

Re: Getting a simple crop render resolution exactly as cropp

PostPosted: Fri May 07, 2021 10:32 pm
by Gary Hango
Video editors are not like photo editors. In a photo editing program you can crop an image and export it at the cropped resolution. Video editing programs are designed to work with standardized resolutions, not arbitrary resolutions, like photos can be. In Resolve you need to first set the timeline to your desired output resolution and fit (zoom, pan, rotate) your video to this resolution and export at the same resolution.

Re: Getting a simple crop render resolution exactly as cropp

PostPosted: Sat May 08, 2021 4:17 pm
by Michael Ivarsson
Gary Hango wrote:Video editors are not like photo editors. In a photo editing program you can crop an image and export it at the cropped resolution. Video editing programs are designed to work with standardized resolutions, not arbitrary resolutions, like photos can be. In Resolve you need to first set the timeline to your desired output resolution and fit (zoom, pan, rotate) your video to this resolution and export at the same resolution.


I understand that, but I think that was possible in after effects/premiere...though I am not sure about it, it was quite some time since I used that.

But if we can set the timeline project manually adpt the desired output resolution and then manually having to zoom pan to get it right, then I don´t understand why that isn´t possible to implement automaticly, or with a preset option, since you do frame crop it, and that frame should contain a certain size and properly convert to pixel resolution from that frame, and Match timeline to crop resolution...that´s all that is needed, it automaticly fetches the crop information and converts the timeline to that resolution...I mean this is what we have to do manually, so why no option to handle that?

The problem with manual adaptation, the crop framing doesn´t give information about the pixel resolution, it only subtracts the width and height sizing from the main timeline resolution and you would have to calculate the difference to get the resolution, but perhaps that is where any automatic convertion is unable to deal with it as well?

I mean, the obvious workaround would be to take a print screen of the timeline and the clip with the frame cropping, in 100% scale, then in image editing software, crop it along that frame, and you would get the exact resolution, then feed that resolution info in to the timeline project, and then manually pan the clip to match since it doesn´t seem to have any other way to "fit" the desired selection.

That´s why I thought the crop tool should work since you sort of can fit and focus desired area in the clip, and all it should do then is to crop to that resolution.

The important part here is not to "know" what resolution you want here for these occasion, but to entirely just frame whatever area in the video I focus on, and then crop to have that videosize, as much as possible.
So I can´t start with a desired resolution, well I can..but if I don´t have to, I prefer to have it that way.

After effects, crop comp to region of interest...I am not sure that is working as I think it should.
Yep it seems so...

Crop comp to region of interest.

Re: Getting a simple crop render resolution exactly as cropp

PostPosted: Sun May 09, 2021 12:24 am
by Jim Simon
I'm telling ya, dude. VirtualDub.

Re: Getting a simple crop render resolution exactly as cropp

PostPosted: Sun May 09, 2021 12:50 am
by Peter Cave
Try not to use Adobe as a reference as it works VERY differently to Resolve. It's NOT possible in resolve. Take other's advice and do it with software that has the features you need.

Re: Getting a simple crop render resolution exactly as cropp

PostPosted: Mon May 10, 2021 10:31 pm
by Michael Ivarsson
Peter Cave wrote:Try not to use Adobe as a reference as it works VERY differently to Resolve. It's NOT possible in resolve. Take other's advice and do it with software that has the features you need.


I have to..it´s pointless giving reference to nothing isn´t it, reference to how it should work makes all sense in the world.
when after effects "seemingly has that function" there is no idea on caving in to the concept of it´s not possible in Resolve.

Does that mean it will Never be possible in Resolve? the fact I know now that it currently isn´t possible means only two things, we suggest it to developers to improve, and it could mean I have to look at After effects and premiere still in the end, and it´s not just that feature that motivates that.

And as you concluded, after effects is such software that has the features I need, If I decide to go only for free open source software or very cheap ones, that is one thing..and virtual dub etc does the work, but I really want a full editing suite capable of this and a lot of other stuff such as export of gif, reloading of clips to replace current clips in the timeline, all that and much more after effects have.

So yes, I really like Da vincie resolve, until I recognize these limits, but what to expect when it´s free, unless getting the pro versions..but I think if I would ever consider that, I should just as well get the Adobe series, it seems to fit better in to my 3D tools like Lightwave as well, and they really don´t look for skills of Davinci Resolve in job ads either..so quite many incitaments for getting it.

The thing is I just don´t like prescription, had it been perpetual license..no brainer.

Re: Getting a simple crop render resolution exactly as cropp

PostPosted: Mon May 10, 2021 10:38 pm
by Michael Ivarsson
Jim Simon wrote:I'm telling ya, dude. VirtualDub.


Yeah, thanks it does the job..when nothing else is available, sure...but I still want to stay in the main editing app if possible with all other
edits, and marks of the clip I am working on, it may look like I will have to check up on After effects again, and not just for this but many other stuff as well, gif export, reloading of clips, pipeline of 3D cam import export to Lightwave etc, and a whole bunch of other effects and what is required in skillset in jobb ads etc.

Re: Getting a simple crop render resolution exactly as cropp

PostPosted: Mon May 10, 2021 10:42 pm
by roger.magnusson
You can do it per clip in the Fusion page if you add a crop and a Saver node. Depending on your project you might be able to just create a Fusion clip out of the whole edited timeline (or a composite clip).

Standalone Fusion Studio might be more practical as it allows you to render to more formats.

But, since Fusion is primarily a generic compositor for image sequences, VirtualDub2 will likely be faster.


If you don't like any of that, can't you just set the timeline resolution in Resolve to the size you need by setting Timeline Resolution to "Custom"? Then resize clips as needed to suit the crop. The render resolution will default to the timeline resolution.

Re: Getting a simple crop render resolution exactly as cropp

PostPosted: Thu Dec 28, 2023 9:48 pm
by VidNoble2
roger.magnusson wrote:You can do it per clip in the Fusion page if you add a crop and a Saver node. Depending on your project you might be able to just create a Fusion clip out of the whole edited timeline (or a composite clip).

Standalone Fusion Studio might be more practical as it allows you to render to more formats.




If you don't like any of that, can't you just set the timeline resolution in Resolve to the size you need by setting Timeline Resolution to "Custom"? Then resize clips as needed to suit the crop. The render resolution will default to the timeline resolution.

Understand this is old thread, but i was looking for same exact feature without any success. Could you explain in detail how to do it trough Fusion tab of Davinci, i never used it before.