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TOPIC: User Effects grouped by category

Re: User Effects grouped by categories 1 year, 3 months ago #178726

  • jwrl
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If you're dealing with anamorphic footage, the top one is wrong, surely? It should have the correct aspect ratio.

I'm not sure that I understand what you're trying to do.
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Re: User Effects grouped by categories 1 year, 3 months ago #178728

  • jwrl
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Actually, re-reading your post has clarified things.

I think that it's unlikely that I can deal DCI exports, since that crop is made regardless of any correction applied earlier. The only way would be to deal with it in a project set to the required aspect ratio. In that case you wouldn't need the anamorphic tools anyway - although they would still work if you needed to convert VistaVision to Panavision, say.
Last Edit: 1 year, 3 months ago by jwrl.
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Re: User Effects grouped by categories 1 year, 3 months ago #178729

  • hugly
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From what I see here the second one is wrong. Due to scaling, the files aren't displayed correctly on this page. You'll see the dimensions correctly on downloaded files.

I'm trying to support kalimerox request who wishes to use anamorphic lenses and is asking for suitable workflows with Lightworks, as you probably know.
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Re: User Effects grouped by categories 1 year, 3 months ago #178731

  • jwrl
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You may have misunderstood what he requires. You have an example that squeezed the frame, and the DCI export has undone that squeeze. He needs an application that unsqueezes an anamorphic frame to give it the correct aspect ratio.

Subsequently it appears that he's trying to export just the active vision with square pixels, without the necessary padding to fill (in his case) the 16:9 frame. The project that he would need to do that would have to be formatted as 2048x857 or some scaling of that. Then the anamorphic tool would still work to do any further correction required if necessary, since it bases its calculations on the projects output aspect ratio.

What it comes down to is this: if you export a Panavision format DCI sequence from a 16:9 project you will always get pillarboxing, regardless of anything else that you have done to the image.
Last Edit: 1 year, 3 months ago by jwrl.
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Re: User Effects grouped by categories 1 year, 3 months ago #178732

  • hugly
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I missed your post while typing the above and the second one obviously too.

What I tried in more detail: I assumed that kalimerox uses some kind of 16:9 capture format together with an anamorphic lense that creates the squeeze for something close to Panavision and tried to find out if there's a way to export to full frame without black bars, without the need to crop the image with third party software after export.

It looks to me currently that this is possible when setting preview to 2.39:1 and stretching with DVE to full width, and exporting to image sequence with AR 2.39 but it seems to be not possible with the effect, but as I said I don't know all implemented "bells and whistles".

Edit: That shows it using DVE exported to image sequence, not the same frame but the same stretch:

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Last Edit: 1 year, 3 months ago by hugly.
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Re: User Effects grouped by categories 1 year, 3 months ago #178734

  • jwrl
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OK, to clarify. The anamorphic tool is designed to correct anamorphic footage. If we take the Panavision example, you start with footage that looks like this in a 16:9 project, and using that tool can convert it to either of the two examples.


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If you are in a project that is already set to 2.39:1 and you start with footage shot the way you see it below, you can fill the frame with it at the correct aspect ratio using the anamorphic tool.


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That really is all that it's designed to do.
Last Edit: 1 year, 3 months ago by jwrl.
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Re: User Effects grouped by categories 1 year, 3 months ago #178742

  • hugly
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I would have thought that an effect can't know whether a picture's been captured with an anamorphic lens or not.

I'm not able with V14.5 RC6 and AnamorphicFX.fx to stretch 1920x1080 footage to full frame with DCI 2K 2.39:1 project output format and consequemtly I can't export without padded black to image sequence. I might push the wrong buttons on the effect.

Anyway, my intention was to give you some feedback and that's done.

That's what I see:
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Last Edit: 1 year, 3 months ago by hugly.
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Re: User Effects grouped by categories 1 year, 3 months ago #178764

  • jwrl
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OK, I've built some test charts and set up some graphics to demonstrate what happens. First, I created an anamorphic Panavision frame inside a 1920x1080 window. It looks like this.

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Imported into 2:39:1 project, this is what you get - quite expected.

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I applied the anamorphic tool and set it up like so.

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This is what I had displayed on my monitor as a result, again, as expected.

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To confirm that it actually had done what was expected, I then exported a frame as a DCI file, and this was the result.

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So as far as I can see, it works. You will have to take my word for it that the last two images are in fact a screen grab and the actual output of Lightworks.

The important thing to note is that only two settings have been used. I set the frame format to squeezed and boxed, and I set the aspect ratio to the input file's aspect ratio. That's all.
Last Edit: 1 year, 3 months ago by jwrl.
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Re: User Effects grouped by categories 1 year, 3 months ago #178766

  • hugly
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Ah, now we come closer to reasons for possible misunderstandings. I obviously run a different version, file date last modified 2018-06-04, downloaded yesterday from some related post of yours. My panel looks looks like this:

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Last Edit: 1 year, 3 months ago by hugly.
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Re: User Effects grouped by categories 1 year, 3 months ago #178768

  • jwrl
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Ah. That explains a lot. Just checking, I've discovered that that upgrade didn't make it into the forums. Sorting it out now.
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Re: User Effects grouped by categories 1 year, 3 months ago #178769

  • jwrl
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Don't know what happened there, but check the download now. It should have a modification date of 2018-06-05 in the header. The GitHub post has also been updated.

For what it's worth, it was also possible to do the same thing with the earlier version, just a little more fiddly to achieve.

[EDIT] Schrauber describes the technique in the post below this.
Last Edit: 1 year, 3 months ago by jwrl.
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Re: User Effects grouped by categories 1 year, 3 months ago #178770

  • schrauber
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hugly wrote:
That's what I see:
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I also tested with the old version.
It works like this:

If you want to stretch so that you lose content from the original frame (in your case, the black bars), then activate "Pan and Scan" in the effect settings, and stretch with the custom aspect ratio.

The default aspect ratios can not be used in your case because they will only correct if they differ from the project output format (or export format).
(good to watch when switching the project output format)
Mainly automatically translated
--------------------------------------------
Windows 10, 64 Bit
Intel i5-4440 (3,1 GHz) ; Intel HD Graphics 4600
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Re: User Effects grouped by categories 1 year, 3 months ago #178772

  • hugly
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Thanks jwrl, after downloading from here now I see exactly the panel your screenshot shows.
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Re: User Effects grouped by categories 1 year, 3 months ago #178773

  • schrauber
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With the new effect, it also works here with the settings in the screenshot of jwrl:
jwrl wrote:
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Mainly automatically translated
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Windows 10, 64 Bit
Intel i5-4440 (3,1 GHz) ; Intel HD Graphics 4600
Last Edit: 1 year, 3 months ago by schrauber.
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Re: User Effects grouped by categories 1 year, 3 months ago #178774

  • hugly
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Thanks schrauber,

Assuming that full frame 16:9 capture format (e.g. 1920x1080) is squeezed with an anamorphic lens in a way that the de-squeezed image is exactly 2.39:1, the easiest way to create 2K DCI 2.39:1 (2048x858) on export without black bars is setting project and export format to 2K DCI 2.39:1 and stretching the image with 2D-DVE to full width. This export format is only available with image sequences, by the way.

Because of all the available presets I tried to do that with AnamorhicFX.fx. That's where all started.
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